CN107463789A - A kind of integrated medical display self-checking device and its calibration method - Google Patents

A kind of integrated medical display self-checking device and its calibration method Download PDF

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Publication number
CN107463789A
CN107463789A CN201710718892.2A CN201710718892A CN107463789A CN 107463789 A CN107463789 A CN 107463789A CN 201710718892 A CN201710718892 A CN 201710718892A CN 107463789 A CN107463789 A CN 107463789A
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calibration
mrow
software module
calibrated
medical display
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CN107463789B (en
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张璞
李姣
李成伟
刘文丽
万国庆
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National Institute of Metrology
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National Institute of Metrology
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0693—Calibration of display systems

Abstract

The invention relates to a kind of integrated medical display self-checking device, it is mainly made up of hardware system and software module.Hardware system includes：Guide rail mechanism, balanced support mechanism, YC meter, illumination photometer, control unit and control computer.Balanced support mechanism is located at guide rail mechanism, and illumination photometer is located at one end of balanced support mechanism；YC meter is located at the other end of balanced support mechanism.Control unit respectively with guide rail mechanism, balanced support mechanism, YC, count illumination photometer, be calibrated medical display and control computer electrically connects, ensure that they can be according to the instruction operation of calibration software module, and control guide rail moves with above-below direction around and controls turntable to rotate, so as to drive YC meter to rotate.Using the calibration method of the present invention, it is that method is objective, accurate to being calibrated medical display self-oscillate position, positioning, then carrying out various parameters calibration, increases substantially the efficiency and calibrating quality of calibration detection.

Description

A kind of integrated medical display self-checking device and its calibration method
Technical field
The present invention relates to the medical calibrating installation and its calibration method of a kind of medical domain, more particularly to a kind of integrated Medical display self-checking device and its calibration method.
Background technology
With the development of the present computer technology, network technology and information technology, PACS (PACS systems System) reach its maturity and popularize, the diagosis pattern of doctor gradually becomes " nephrite cat's-eye ".Medical display brightness, brightness ratio, point Resolution, response time etc. are all substantially better than regular display, it is often more important that medical display has regular display difficult With the stability and uniformity reached.Therefore, the digital picture of medical display presentation is more true, content is more abundant.Doctor It is image output equipment important in PACS system with display, its performance quality is directly connected to doctor and patient's focus is sentenced It is disconnected, so as to influence the establishment of patient treatment protocol.
Medical display technology is quickly grown at present, and the medical display that brand is numerous, type kind is numerous and diverse is within the hospital Application extremely popularize.Relevant criterion is write for medical display by existing multiple countries or international organization in the world, such as beautiful The working group AAPM-TG18 of medical physicist association of state the 18th, the U.S. radiotherapy institute ACR and NEMA NEMA DICOM3.14 and IEC IEC 62563-1:The standards such as 2009.Although above-mentioned standard describes detection former Reason, but it is not prescribed by concrete implementation method and operating process.The professional standard of China's medical display is equivalent using accreditation The higher international standard of degree.For not yet establishing the measurement and calibration specification of national level at present with medical display, China.
In the calibration process of medical display, testing staff more using manual reading of drawings and manually operated YC meter, The detection methods such as colorimeter.The mode of manual reading of drawings is that testing staff judges image definition grade by range estimation, manually operated Then need testing staff is subjective to determine test position, handheld device is measured in measured zone and manually recorded data.The above two Step operation all relies on the subjective judgement of testing staff in all many-sides such as interpreting blueprints, positioning and the selections of time of measuring interval, therefore Often there is certain error in the measurement result that this method obtains, measurement reproducibility and accuracy are poor, do not meet meterological The requirement of evaluation.In addition, the above method takes, less efficient, poor practicability.The step of existing medical display calibration method, is such as Under：
Step 1：The importing and selection of test image
Before detection, testing staff will detect required test image and import in equipment under test first.Often carry out a parameter Detection, testing staff is required for voluntarily importing the image for detecting and being used required for this parameter, this job requirement measurement people Member manually selects image, and process is cumbersome, time-consuming, and easily error.
Step 2：Brightness, the calibration of uniformity of chromaticity
Brightness uniformity is calibrated
Maximum change when brightness uniformity refers to show homogeneous image in viewing area.TG18-UN10 is used respectively Standard testing image or the rank of gray value relatively low-the 26/256, as Figure 1A and TG18-UN80 standard testings image or gray value compared with The ranks of Gao-the 204/256, if Figure 1A is as test image, calibrated to being calibrated display brightness uniformity.
Using YC meter, choose respectively at 5 points, 9 points or 12 points by tested display Diagonal Dimension and calibrated.It is logical Normal 20 inches (containing 20 inches) is measured with sub-screen using 5 methods, i.e., center and corner are each a bit (such as Fig. 2A)；More than 20 inches Less than 30 inches (containing 30 inches), the screen that will be calibrated medical display was uniformly divided into 9 palace lattice with 9 methods (such as Fig. 2 B)； More than the 30 inches screens for being calibrated medical display use (such as Fig. 2 C) at 12 points, that is, the screen for being calibrated medical display is horizontal Divided when putting by 4 × 3 ratio uniform.Each test point brightness value of gained need to be manually recorded, is calculated as follows：
In formula：
Lu- brightness uniformity
Lmax- with the maximum brightness value measured in group detection
Lmin- with the minimum luminance value measured in group detection
2nd, uniformity of chromaticity is calibrated
The minimum range between two coordinate points when uniformity of chromaticity refers to show homogeneous image in viewing area.
TG18-UN10 standard testings image or the rank of gray value relatively low-the 26/256 are used respectively, such as Figure 1A and TG18- UN80 standard testings image or gray value are compared with the ranks of Gao-the 204/256, if Figure 1B is as standard testing image, to being calibrated display Device uniformity of chromaticity is calibrated.
Using colorimeter, with reference to the calibration method of foregoing brightness uniformity, by the screen size for being calibrated medical display Choose respectively at 5 points, 9 points or 12 points to be calibrated.Each test point brightness value of gained need to be manually recorded, is counted as follows Calculate：
U ' and v ' is u '-v ' space coordinates, and reduction formula is as follows：
U '=4x/ (- 2x+12y+3)
V '=9x/ (- 2x+12y+3)
Compared to the size for the screen for being calibrated medical display, the size of test point is smaller, and due to being man-hour manually hand-held YC meter is detected, therefore the selection of test point substantially can be influenceed by human factor, be calibrated medical display In the case that screen intensity, the colourity of device are uneven, result that different testing staff obtain it is possible that more than 30% it is inclined Difference.
Step 3：Angle of visibility is calibrated
When direction of observation and screen are angled, being calibrated the display effect of medical display can decline.Work as detection The brightness that personnel measure from the angled direction of observation of the screen with being calibrated medical display drops to right-angle view Shi Liangdu 10% when, it is believed that visual condition has been unsatisfactory under the viewing angle, the brightness can be used as critical visual brightness value. Plane of vision and the screen vertical for being calibrated medical display, 180 ° are rotated around the concyclic heart of observation station in plane of vision, now Occur the number of degrees of institute's angle between the observation position of critical visual brightness value twice, be the angle of visibility of the screen.
Above-mentioned calibration method requires that testing staff need to hold the alignment of YC meter and be calibrated display center position, with display Device is reference planes, mobile YC meter rotation 180 degree, and select points equally.Because this mode is difficult to uniformly choose Measurement point, therefore this manual mode measurement angle of visibility can not be taken in actual alignment.In actual alignment, testing staff adopts mostly Calibrated with the mode of range estimation.As shown in figure 3, testing staff first by estimation mode clearly differentiate positioned at be calibrated it is medical The object observing of display center position, moved respectively to+90 ° and -90 ° of both directions in same level respectively afterwards, Until it can not clearly differentiate the object observing of center.The extreme position in+90 ° of directions and -90 ° of directions is recorded respectively, both The angular interval of composition is designated as the calibration result of angle of visibility.The calibration result that this visual method obtains has larger artificial mistake Difference, it is unable to reach objective, the accurate requirement of meterological evaluation.
Step 4：Contrast response calibrates
Contrast response refers to the uniformity with GTG canonical function (GSDF), is embodied directly in meeting between characteristic curve Degree.GSDF in international standards of medical education DICOM3.14 by proposing, for describing sensitivity of the human visual system to contrast, It presents the relation between display brightness of being incremented by of GTG, i.e. JND (just-noticeable difference) with Relation between brightness.
JND- YC calculation formula are as follows：
In formula：A=71.498068, B=94.593053, C=41.912053, D=9.8247004, E= 0.28175407, F=-1.1878455, G=-0.18014349, H=0.14710899, I=-0.017046845
In international standard recommend using TG18-LN series totally 18 width difference GTGs image carry out contrast response's measurement. Each width image center location is effective measuring area in TG18-LN series, and effective measuring area surrounding is used around black region In influence of the reduction peripheral regions brightness to center detection zone.When actually detected by TG18-LN-01 to TG18-LN-18 this 18 width images are shown to medical display, the brightness values in measurement image center location region, and according to above-mentioned formula (3) successively (4) GSDF curves are calculated to be illustrated in fig. 4 shown below.
In formula：P is the numeral input of system, and i refers to the index for 18 test charts in experiment；
--- afterwards, contrast response's calculating is carried out, testing staff clicks on " contrast response " button, calibration software module Contrast response's calculating is carried out according to formula (5) and (6),
In formula：
L′iBrightness value in-index on i points；
- according to corresponding to GTG standard display function (GSDF) target luminance value.
δiWithCorresponding 0.5 (Ji+Ji-1) (average value of the J values of corresponding brightness measurement) characteristic curve；
δiRespective value withThe threshold value criterion of determination is not to be exceeded in the deviation of respective value；
Fig. 4 shows the GSDF curves that the measurement to 18 width test charts obtains.Fig. 5 shows that the contrast of surveyed data is rung Should, discrete point is contrast response's result of calculation of this 18 width test image, and solid line is contrast response's theoretical value curve, upper void Line represents the theoretical value curve with+15% deviation, and lower dotted line represents the theoretical value curve with -15% deviation.
The data of the corresponding generation of 18 width test images are, it is necessary to compared with GTG standard display function (GSDF) curve.Therefore In addition to manual reconnaissance, measurement gathered data, also need manually to carry out data processing, and draw analysis graph.Due to above-mentioned calibration Method is sufficiently complex, is difficult to manual operation at present.
Step 5：Response time calibrates
Response time refers to being calibrated reaction speed of the medical display to input signal, includes the rising edge response time With the trailing edge response time.
During calibration, test signal is input to and is calibrated medical display, and make its white signal and black signal it Between switch, obtain wavy curve, rising edge (trailing edge) reaches 10% (90%) and 90% of its corresponding maximum luminance (10%) time used is its corresponding rising edge (trailing edge) response time between brightness, as shown in Figure 6.
Due to about (15 to 80) millisecond of corresponding time of medical display, the sampling for detection device in calibration process Fitness between frequency and image conversion requires very high.Therefore conventional manual methods can not realize the calibration of this parameter.
Record, preservation and the lookup of step 6 calibration result
As described above, existing calibration method is all using the measurement of manual reading of drawings or manually operated manual positioning, calibration knot Fruit extremely relies on the range estimation resolution capability and subjective judgement of testing staff, and the degree of accuracy of measurement result and repeatability are all poor. All experimental datas are both needed to manually recorded and preserved, and carry out artificial data processing.Therefore existing calibration method calibration result Not accurate enough, less efficient, it is not convenient enough to search.
The defects of existing in view of above-mentioned existing medical calibrating installation and its calibration method, the design people is by continuous Research, design, and after studying sample repeatedly and improving, the present invention having practical value is created finally.
The content of the invention
It is an object of the present invention to the defects of overcoming existing medical calibrating installation and its calibration method to exist, and provide A kind of integrated medical display self-checking device and its calibration method of new structure, technical problem to be solved are The all multiple error and uncertainty that manual operation can be avoided to be brought to calibration result, it is multinomial can to calibrate medical display Core parameter, method is objective, accurate, so as to increase substantially the efficiency of calibration detection.
Another object of the present invention is to, there is provided a kind of integrated medical display self-checking device and its calibration side Method, technical problem to be solved are it is ensured that testing staff's accurate judgement is calibrated the state and property of medical display Can, so as to improve calibrating quality.
The object of the invention to solve the technical problems is realized using following technical scheme.Itd is proposed according to the present invention A kind of integrated medical display self-checking device, be mainly made up of hardware system and software module,
Wherein described hardware system includes：
--- guide rail mechanism, can drive balanced support mechanism realize around and upper and lower three directions movement；
--- balanced support mechanism, it is arranged on guide rail mechanism, the shifting of above-below direction can be done on described guide rail mechanism It is dynamic, while drive YC meter and illumination photometer to move；
--- turntable, the one end being arranged in described balanced support mechanism, and YC meter is driven same flat - 90 ° to 90 ° rotations are carried out with the same center of circle in face；
--- YC meter, the bottom of described turntable is arranged on, as main signal picker；
--- illumination photometer, the other end being arranged in described balanced support mechanism, as main signal picker；
Described software module includes:
--- calibration software module, movement instruction is sent to guide rail mechanism and balance supporting mechanism, while it is bright to be responsible for collection Spend colorimeter and illumination photometer gathers the signal of coming, for controlling hardware system and realizing record, storage detection device information and school Quasi- data, it is easy to inquire about in the future；
--- test chart software module, not only comprising all standard testing images required for parametric calibration, also built-in ash Angle value is from 0 to 1 equally distributed 1024 GTG test images, and all test images can be in each parametric calibration by surveying Attempt the matching of software module automatic synchronization.
Foregoing a kind of integrated medical display self-checking device, wherein described hardware system also includes control Unit, described control unit is respectively with guide rail mechanism, balanced support mechanism, YC meter, illumination photometer and being calibrated medical The data transfer and acquisition system of display are effectively connected, it is ensured that they can be transported according to the instruction of calibration software module OK, and control guide rail mechanism moves around with above-below direction, and controls turntable to rotate, so as to drive YC Meter rotation.
Foregoing a kind of integrated medical display self-checking device, wherein described hardware system also includes control Computer, described control computer electrically connect with described control unit, and described calibration software module is installed on control meter Calculation machine.
Foregoing a kind of integrated medical display self-checking device, wherein described hardware system also includes remote control Device, described remote control are attached with control unit using communication, and the remote control can be sent to control unit Instruct and control guide rail mechanism to be moved around with above-below direction by control unit.
Foregoing a kind of integrated medical display self-checking device, wherein the biography of described test chart software module Defeated mode is CD transmission, and the transmission of described CD is that into CD and all test image imprintings are formed into " test chart software mould The main frame that block ", the read test figure software module from described CD, and combination are calibrated medical display is operated.
Foregoing a kind of integrated medical display self-checking device, wherein the biography of described test chart software module Defeated mode is the Transmission system of hospital, test chart software module is imported in the Transmission system of hospital, passes through the transmission system of hospital System transmits test image to being calibrated medical display.
Foregoing a kind of integrated medical display self-checking device, wherein described guide rail mechanism is by 4 guide rails Composition, it be arranged in parallel and the first guide rail and the second guide rail and is positioned on horizontal plane in fore-and-aft direction, the 3rd described guide rail is set On first guide rail and the second guide rail, horizontal plane determined by the 3rd guide rail along the first guide rail and the second guide rail is set to carry out The movement of fore-and-aft direction, the 4th described guide rail are vertically arranged on the 3rd described guide rail, and perpendicular to the first guide rail and the Horizontal plane determined by two guide rails, the 4th guide rail is carried out left and right directions along the 3rd guide rail and move, described balanced support machine Structure is arranged on the 4th guide rail, and the balanced support mechanism carries out moving for above-below direction along the 4th guide rail.
A kind of foregoing integrated medical display self-checking device, wherein the first described guide rail, the second guide rail, 3rd guide rail and the 4th guide rail are respectively furnished with a servomotor.
A kind of foregoing integrated medical display self-checking device, wherein the first described guide rail, the second guide rail, 3rd guide rail and the 4th guide rail are lead screw guide rails.
The object of the invention to solve the technical problems is realized using following technical scheme.According to a kind of using collection Into the calibration method of the medical display self-checking device of change, it is mainly included the following steps that：
Step 1：Start calibration software module；
Step 2：Carry out integrated medical display self-checking device and be calibrated medical display pendulum position；
Carry out being calibrated the pendulum position of medical display first；
Testing staff is extremely completely vertical with horizontal plane by the screen adjustment for being calibrated medical display by plummet；
Afterwards, carry out the pendulum position of integrated medical display self-checking device, testing staff by control unit and The plane that the first guide rail and the second guide rail of remote control adjustment guide rail mechanism are formed is put down with being calibrated the screen of medical display OK, YC meter is rotated, makes YC meter and the screen for being calibrated medical display completely vertical；
Step 3：The importing and selection of test image
Test chart software module carries out handshake communication with calibration software module, can be controlled and triggered not by calibration software module Show with test image corresponding to calibration parameter and on the screen for be calibrated medical display；
Described test image lead-in mode imports for CD：Testing staff is being calibrated medical display master by CD Test chart software module is installed on machine；Or
The lead-in mode of described test image is imported for the mode of medical delivery system, and test chart software module is imported In the Transmission system of hospital, test image is transmitted to being calibrated medical display by the Transmission system of hospital；
The selection of described test image is that testing staff can show corresponding test automatically using test chart software module The function of image, operation progress is by the selection of altimetric image in control computer；
Step 4：The typing of calibration information
Typing is calibrated the various information of medical display in calibration software module, and integrated medical display is automatic Calibrating installation preserve these information into the database of calibration software module and it is convenient inquire about, every calibration result hereafter with The information of typing herein is associated and unifies to preserve, and facilitates follow-up information inquiry and initial data to search；
Step 5：The positioning of medical display center is calibrated, to determine that the space for being calibrated medical display is sat Mark：
The size and design structure information of integrated medical display self-checking device are had been inserted into calibration software mould In block, calibration software module relies on the existing positional information of integrated medical display self-checking device to determine to be calibrated doctor With the space coordinates of display, testing staff uses " point methods of diagonal two " or " location of the core of calibration software module Method " is completed to be calibrated positioning and the space coordinates of medical display center；
Step 6：High-high brightness value calibration, before formally parameters calibration is carried out, high-high brightness value calibration is carried out first, If maximum brightness value calibration result is qualified, the detection of subsequent calibrations parameter can be carried out；Otherwise Calibration Report is directly generated；Successively Carry out：
Step 7：YC nonuniformity calibration；
Step 8：Brightness is than calibration；
Step 9：Contrast response calibrates；
Step 10：Angle of visibility is calibrated；
Step 11：Response time calibrates；
Step 12：Preserve calibration result data
Step 13：Preserve, integrated medical display self-checking device preserves calibration result to database with convenient It is follow-up to search；Calibration Report can be generated to any calibration record simultaneously, calibration terminates.
Foregoing a kind of calibration method using integrated medical display self-checking device, wherein described center Independent positioning method is that calibration software module reads the back-end data for being calibrated medical display automatically, and acquisition is calibrated medical display The specific width of device and the size of height, while test chart software module will show one on the screen for be calibrated medical display Width gray value is equal to 1 solid white image, and the image center location automatically generates the round spot of a black；Testing staff passes through calibration The button or use remote control control guide rail mechanism under " step distance " project in software module, with automatic regulating lightness color Spend meter locus, until make YC meter perpendicular alignmnet be calibrated medical display screen centre position round spot, " confirmation center " button is clicked on, calibration software module records the space coordinates of present intensity colorimeter, that is, determined automatically It is calibrated the space coordinates of medical display center；Now, what calibration software module combination had been read is calibrated medical aobvious Show implement body size and its center space coordinates, the space seat for being calibrated the whole screen of medical display is calculated and determined Mark, click on " it is determined that " button, calibration software module, which preserves, is calibrated the space coordinates of medical display；In regulation YC meter During position, YC meter relative to be calibrated medical display projected position can control computer calibration it is soft Real-time display in part module interfaces, it is automatic fixed when each position obtained in this step is by for follow-up all parametric calibrations Position, without repeating operation during calibration every time.
Foregoing a kind of calibration method using integrated medical display self-checking device, wherein described is diagonal The point methods of line two are that test chart software module is displayed in full screen a width gray value equal to 1 on the screen for be calibrated medical display Solid white image, and automatically the corner of this image respectively generation one black round spot.
Testing staff is by adjusting the button under " step distance " project or using remote control, adjustment control guide rail mechanism Each bar guide rail, the position of turntable and YC meter, testing staff is medical relative to being calibrated by YC meter first The projected position of display is adjusted to the upper left angle point being calibrated in the screen of medical display, and is clicked on " confirming at first point " and pressed Button, testing staff is relative by YC meter by the button under regulation " step distance " project or using remote control afterwards Adjust to the bottom right angle point being calibrated in the screen of medical display, and click in the projected position for being calibrated medical display " confirmation second point " button, now the position of a space of points coordinate of diagonal boundary two be recorded in calibration software module, Calibration software module obtains according to this 2 points spatial coordinates calculation to be calibrated the specific size of medical display and determines to be calibrated The space coordinates of the whole screen of medical display, click on " it is determined that " button, calibration software module preserve be calibrated medical display Space coordinates；YC meter can be in calibration software module interface in fact relative to the projected position for being calibrated medical display When show, being automatically positioned when each space coordinates obtained in this step is by for follow-up all parameter detectings, without each Operation is repeated during detection.
Foregoing a kind of calibration method using integrated medical display self-checking device, wherein described maximum Brightness value calibration is：
--- nominal luminance value is set first, medical display will be calibrated and adjusted to the maximum nominal luminance that can reach Value, and record；
--- then, calibration software module is opened, by " calibration " menu setecting " high-high brightness value calibration " work(in menu bar Energy；
--- into " high-high brightness value calibration " interface of calibration software module, at the same time, control computer with by school Quasi- medical display main frame is in handshake communication state, test chart software module will trigger automatically and be loaded into standard testing image or The higher image of gray value is calibrated as test image to the maximum brightness value for being calibrated medical display；
--- central point is determined, on maximum brightness value Calibration interface, clicks on " central point " button, integrated is medical aobvious Show the space coordinates recorded during the space coordinates that device self-checking device will be calibrated medical display according to described determination, Center point coordinate is determined, guide rail mechanism can carry the motion of YC meter until YC meter perpendicular alignmnet is calibrated medical show Show the center of device；
--- collection brightness value, " collecting test " button is clicked on, YC meter is under the cooperation of test chart software module Automatic data collection is calibrated the brightness value 3 times of medical display center；
--- calculate brightness ratio, calibration software module calculates average values for 3 measurement results, and using average value divided by Maximum nominal luminance is worth to brightness ratio, if brightness ratio is less than 60%, calibration software module prompting " is calibrated medical display It is unqualified "；Conversely, it can proceed with next step calibration；
--- preserve, after high-high brightness value calibration terminates, no matter be calibrated whether medical display is qualified to be required for a little " preservation " button is hit, preserves this calibration result.
Foregoing a kind of calibration method using integrated medical display self-checking device, wherein described is bright Degree, uniformity of chromaticity calibration are：
--- first, nominal luminance value is set, the nominal luminance for being calibrated medical display is arranged to maximum nominal bright The 60% of angle value, and record；
--- then, calibration software module is opened, by " calibration " menu setecting " brightness, uniformity of chromaticity school in menu bar It is accurate " function, into " brightness, uniformity of chromaticity calibration " interface；At the same time, control computer is with being calibrated medical display master Machine is in handshake communication state, and test chart software module triggers and is loaded into standard testing image or other gray values are higher automatically Image be used as " white " test image, standard testing image or other gray values it is relatively low image conduct " black " test image；
--- sampled point is established, before calibration is started, sampled point need to be established, selects " selection points " or " between input Gap ", respectively using set sampling number method and from selected-point method to being calibrated medical display brightness, uniformity of chromaticity carries out school Which kind of sampled point no matter standard, take establish mode, and calibration software module can be after sampled point establishes completion in calibration software Sampled point and default movement locus are shown in module operation interface；
--- brightness, the collection of chromatic value, selection different images carry out uniformity collection, selection after establishing sampled point " white " test image is simultaneously clicked on " starting to gather ", and test chart software module is received standard after the instruction that calibration software module is sent Test image or the higher image of other gray values are in full screen on the screen for being calibrated medical display, and are started according to pre- If sampled point and movement locus carry out brightness, the collection of chromatic value；Equally, select " black " test image and click on " to start to adopt Collection ", test chart software module receive standard testing image or other gray values is relatively low after the instruction that calibration software module is sent Image be in full screen on the screen for being calibrated medical display, and start the gatherer process consistent with " white " test image, This calibration method using it is " snakelike " it is mobile by the way of according to predetermined movement track since the highest sampling point position of the upper left corner to the right, Move down and gathered data, in calibration process, can also be marked just in the form of sampled point flashes on calibration software module interface In the sampled point of collection；
--- brightness, uniformity of chromaticity are calculated, after any brightness, uniformity of chromaticity collection are completed, calibration software Module can calculate brightness, uniformity of chromaticity and real-time display automatically in the lower right of calibration software module operation interface, and tie Beam collection after automatically according to different sampled points brightness value with the Form generation " intensity map " of " contour map ", help to detect Personnel judge to be calibrated the brightness uniformity of medical display with most intuitive way, at a glance；
Medical display is calibrated for any one, it is necessary to measure under the two kinds of different test images in " white " and " black " simultaneously Brightness, uniformity of chromaticity, no matter the uniformity first surveyed under any image, as long as not changing sampled point, you can directly select Another piece image starts to detect next time；
--- preserve and delete, medical display is calibrated for same, the calibration under different test images corresponding to it " completed detection " record inframe being shown in during fructufy, clicks on " preservation " button after calibration is completed every time, preserves and work as Preceding all calibration results, inframe is recorded in " completed detection ", chooses a certain bar to record, clicked on " deleting storage ", you can delete Except this calibration result.
The foregoing calibration method using integrated medical display self-checking device, wherein described setting sampling Point system, it is according to the size for the diagonal screen dimension L for being calibrated medical display, selects " 5 points ", " 9 points " or " 12 points ", Then " building sampled point " button is clicked on to calculate automatically and establish sampled point.
The foregoing calibration method using integrated medical display self-checking device, wherein described from selected-point method It is according to the actual size and calibration needs for being calibrated medical display, is independently set by testing staff between adjacent two test point Away from testing staff selects " input gap ", and the interval inputted in " sampling gap " dialog box between two sampled points, unit For millimeter；" building sampled point " button is clicked on, calibration software module can be according to the screen size for being calibrated medical display and " sampling Gap " calculates automatically and establishes sampled point.
A kind of foregoing calibration method using integrated medical display self-checking device, it also includes brightness It is than calibration：
--- first, nominal luminance value is set, medical display brightness value will be calibrated and be arranged to maximum nominal luminance value 60%, and record；
--- then, calibration software module is opened, by " calibration " menu setecting in menu bar " brightness than calibrates " function, Into " brightness is than calibration " interface, on " brightness is than calibration " interface, " central point " button is clicked on, guide rail mechanism can carry The motion of YC meter is calibrated the center of medical display up to YC meter perpendicular alignmnet, " brightness is than calibration " Built-in two kinds of metering systems, respectively gradation metering system and the mode continuously measured are calibrated in function.
A kind of foregoing calibration method using integrated medical display self-checking device, described gradation measurement Mode be：
First click on " the first figure brightness value " corresponding " collection " button, now test chart software module automatically triggering and It is calibrated on medical display and is displayed in full screen standard testing image or the relatively low image of other gray values, in the collection of YC meter In heart position brightness value and the dialog box being automatically displayed under " the first figure brightness value "；
Then click on " the second figure brightness value " corresponding " collection " button, now test chart software module it is automatic trigger and It is calibrated on medical display and is displayed in full screen standard testing image or the higher image of other gray values, in the collection of YC meter In heart position brightness value and the dialog box being automatically displayed under " the second figure brightness value ", after second of brightness value collection is completed, Calibration software module, than calculation formula, is calculated and be shown brightness and compares result of calculation automatically according to following brightness；
In formula：
Lc- brightness ratio
Lmax- display gray shade value is compared with the brightness value measured by hi-vision
LminBrightness value measured by the relatively low image of-display gray shade value
After brightness terminates than calibration, " preservation " button is clicked on, preserves this calibration result, clicks on " deleting storage ", can The calibration result stored is deleted, remeasures brightness ratio.
A kind of foregoing calibration method using integrated medical display self-checking device, described continuous acquisition Mode be click on " continuous acquisition " button, now successively triggering is simultaneously complete on medical display is calibrated for test chart software module The quasi- test image of screen display indicating or the higher image of the relatively low image of other gray values and standard testing image or other gray values Test image, and successively collect two brightness values are shown in " the first figure brightness value " and " the second figure brightness value " In corresponding dialog box, while compare result of calculation according to the brightness brightness that is calculated and be shown more automatic than formula is calculated as below：
In formula：
Lc- brightness ratio
Lmax- display gray shade value is compared with the brightness value measured by hi-vision
LminBrightness value measured by the relatively low image of-display gray shade value
After brightness terminates than calibration, " preservation " button is clicked on, preserves this calibration result, clicks on " deleting storage ", can The calibration result stored is deleted, remeasures brightness ratio.
Preceding described a kind of calibration method using integrated medical display self-checking device, wherein described pair It is than degree response calibration：
--- first, nominal luminance value is set, medical display brightness value will be calibrated and be arranged to maximum nominal luminance value 60%, and record；
--- then, calibration software module is opened, by " calibration " menu setecting in menu bar " contrast response's calibration " work( Can, into " contrast response's calibration " interface, on " contrast response's calibration " interface, click on " central point " button, guide rail machine Structure can carry the motion of YC meter until YC meter perpendicular alignmnet is calibrated the center of medical display；
--- set " sampling interval ", gather, be calibrated for the brightness value of any one width test image center After medical display shows the image, test chart software module notifies calibration software module, calibration software by handshake Module waits certain " sampling interval " to carry out brightness value collection afterwards, and calibration software module is again by letter of shaking hands after collection is completed Number notice test chart software module be switched to next width testing image, so circulation until all test images brightness value test Complete, sampling interval duration is defaulted as 30 milliseconds according to setting is actually needed；
--- brightness gathers, and after " sampling interval " is provided with, clicks on " starting to gather " button, test chart software mould Block triggers and imports gray value equally distributed 1024 rank test image from 0 to 1 automatically, calibration software module by it is above-mentioned shake hands it is logical The brightness that the mode of letter carries out 1024 rank gray level images gathers, and in gatherer process, calibration software module is in brightness-grey exponent number The image exponent number and its brightness values that real-time display has measured in chart；
--- GSDF curves corresponding to 1024 rank images are calculated, to the end of brightness collection corresponding to 1024 rank images, point " GSDF " button is hit, calibration software module calculates according to JND- YCs calculation formula (3) and GSDF curves calculation formula (4) GSDF curves corresponding to 1024 rank images；
Calibration software module calculates according to JND- YCs formula：
In formula：A=71.498068, B=94.593053, C=41.912053, D=9.8247004, E= 0.28175407, F=-1.1878455, G=-0.18014349, H=0.14710899, I=-0.017046845 and
GSDF curve equations：
In formula：P is the numeral input of system, and i refers to the index for 18 test charts in experiment；
--- afterwards, contrast response's calculating is carried out, testing staff clicks on " contrast response " button, calibration software module Contrast response's calculating is carried out according to formula (5) and (6),
In formula：
L′iBrightness value in-index on i points；
- according to corresponding to GTG standard display function (GSDF) target luminance value.
δiWithCorresponding 0.5 (Ji+Ji-1) (average value of the J values of corresponding brightness measurement) characteristic curve；
δiRespective value withThe threshold value criterion of determination is not to be exceeded in the deviation of respective value；
Now calibration software module acquiescence is chosen 18 width images from 1024 rank image equal intervals and calculated, i.e. " sample Point " default number is 18；" lower limit " and " higher limit " for the 18 width image corresponding brightness values chosen is respectively the 1024th rank figure It is the 102nd and the 922nd width image as the 10% of corresponding brightness value and 90%；
--- result of calculation is preserved, is calculated by two steps, clicks on " preservation " button, software module is automatically by above-mentioned two steps meter Calculate result and respective image is preserved, click on " deleting storage ", the calibration result stored can be deleted, remeasure contrast Response；
Provided according to standard, the calibration of contrast response is evaluated by " contrast response ", it is specified that GSDF calibration knots ± the 15% of its nominal value is not to be exceeded in fruit.
Foregoing a kind of calibration method using integrated medical display self-checking device, wherein described is visual Calibrate at angle：
--- first, nominal luminance value is set, medical display brightness value will be calibrated and be arranged to maximum nominal luminance value 60%, and record；
--- then, calibration software module is opened, by " calibration " menu setecting in menu bar " angle of visibility calibration " function, is entered Enter " angle of visibility calibration " interface, at the same time, control computer is in handshake communication state with being calibrated medical display main frame, Test chart software module triggers and is loaded into standard testing image or image that other gray values are higher automatically.
--- center position is determined, on " angle of visibility calibration " interface, clicks on " central point " button, guide rail mechanism can be taken With the motion of YC meter until YC meter perpendicular alignmnet is calibrated the center of medical display；
--- input " sampling gap ", it is calibrated medical display angle of visibility and changes between 0 ° to 180 °, sampling gap Can arbitrarily it set, sampling gap >=0.02 °, sampling gap is 1 ° when calibration software module default setting angle of visibility is calibrated, and is amounted to 180 sampled points, the screen vertical position of medical display is taken and is calibrated as 0 ° of position of starting, YC meter is from start bit Put beginning rotated along the same plane heart concyclic to the left to the angle undergone with being calibrated medical display parallel position be designated as- Between 90 ° to 0 °；And along same plane, the concyclic heart rotates to being calibrated medical display and put down to the right since original position Line position puts undergone angle and is designated as 0 ° between 90 ° of ﹢, and the corresponding sampling angle of sampled point from left to right is defined in -90 ° Change in the range of to 90 ° of ﹢；
--- sampled point is built, after input " sampling gap ", is clicked on " building sampled point ", calibration software module calculates sampling automatically Point number simultaneously draws predetermined movement track, and sampling point distributions and movement locus are shown in calibration software module in schematic form On interface, in calibration process, also the sampling gathered can be marked in the form of sampled point flashes on calibration software module interface Point；
--- sampled point measures, and clicks on " starting to gather " button, and angle of visibility calibration acquiescence gathers all samplings from left to right Point, guide rail mechanism and turntable carry YC meter and move to leftmost side original position, and ensure that YC meter is directed at quilt Calibration medical display center simultaneously measures its brightness value, guide rail mechanism and turntable synergy, controls YC meter Equiangularly spaced three-dimensional rotation is carried out according to default sampled point in same level, in rotary course, it is ensured that YC Meter alignment all the time is calibrated the center of the screen of medical display, and in sampling process, calibration software module real-time display is simultaneously Brightness value corresponding to each sampled point is recorded, and brightness-sampling angle with angle change is synchronously drawn according to these brightness values Curve；
--- angle of visibility is calculated, after all sampled points are measured, clicks on " calculating angle of visibility " button, calibration software mould Block calculates and shows angle of visibility, the critical angle of visibility in left/right side and critical visual brightness value on " angle of visibility calibration " interface automatically, Critical visual brightness value is 10% of maximum brightness value in all sampled points, and a left side can be determined after determining critical visual brightness value Critical visible angle in the range between 0 ° to+90 ° of between -90 ° to 0 ° of side and right side, the two critical visible angles it is absolute Value sum is angle of visibility, meanwhile, calibration software module is on brightness-sampling angle curve map in " angle of visibility calibration " interface Identify critical visual Angle Position corresponding to critical visual brightness value and left and right sides；
--- preserve angle of visibility calibration result, angle of visibility calibration terminate after, it is necessary to click on " preservation " button to preserve this Calibration result, " deleting storage " is clicked on, the calibration result stored can be deleted, remeasure angle of visibility.
Foregoing a kind of calibration method using integrated medical display self-checking device, wherein described response Time calibration：
--- first, nominal luminance value is set, medical display brightness value will be calibrated and be arranged to maximum nominal luminance value 60%, and record；
--- calibration software module is opened, by " calibration " menu setecting in menu bar " response time calibration " function, is entered " response time calibration " interface, at the same time, control computer necessarily be in handshake communication with being calibrated medical display main frame State, the black i.e. gray value that test chart software module triggered and be loaded into alternately flicker automatically is 0 and pure white i.e. gray value is 1 survey Attempt picture；
--- center is determined, on " response time calibration " interface, clicks on " central point " button, guide rail mechanism carries Illumination photometer motion is until illumination photometer perpendicular alignmnet is calibrated the center of medical display；
--- set " sampling time interval ", using high speed acquisition card control and gather the illumination numerical value that illumination photometer measures, Real-time Transmission to calibration software module, described high-speed collection card highest picking rate is adopted up to 4 μ s/ points, calibration software module Sample time interval is set according to the actual requirements, is defaulted as 32 μ s；
--- collection illumination photometer response curve, after " sampling time interval " is set, " starting to gather " button is clicked on, is shone Degree meter automatically begins to gather, until calibration software module, which identifies, includes 4 completely in the illumination photometer response curve gathered Rising edge and 4 complete trailing edges, then collection stop；
--- the response time is calculated, built-in two kinds of response time computational methods, is respectively：
The first is calculated according to initial data, clicks in " initial data " one column " calculating the response time " button, Calibration software module calculates according to the initial data measured and is calibrated the medical display response time；
Second of filtering process method, click on " filtering process ", calibration software module is carried out at smothing filtering to initial data Reason, then corresponding " calculating the response time " button is clicked on, calculate the response time of the data after filtered processing；
--- response time calibration result is preserved, after response time calibration terminates, " preservation " button is clicked on and preserves this school Quasi- result, the mode of two kinds of calculating response times can only preserve result corresponding to one of which." deleting storage " is clicked on, is deleted The calibration result of storage, remeasures the response time.Foregoing is a kind of using integrated medical display self-checking device Calibration method, it can also realize the calibration of the parameters such as brightness constancy, the measurement that can be equally automated, testing staff Can sets itself Detection of Stability as needed time interval and sampling number.
The present invention has clear advantage and beneficial effect compared with prior art.It at least has following advantages：
1st, the present invention can realize the control of all motor functions by the calibration software module installed in control computer And the measurement of calibration parameter；
2nd, the present invention establishes handshake communication, calibration software mould by control computer with being calibrated the main frame of medical display Block can control test chart software module to be loaded automatically according to different calibration parameters and show corresponding test image, parameters Calibration process realize automation substantially；
3rd, the present invention is related to two methods when it is determined that being calibrated medical display space coordinates.One kind is to pass through confirmation It is calibrated screen center's point coordinates of medical display and coordinates reading to be calibrated the width of screen in medical display back-end data Degree, height number, are calculated and determined the space coordinates for being calibrated the whole screen of medical display automatically.Another kind is to pass through confirmation Be calibrated the coordinate of any one diagonal two-end-point of screen of medical display, so it is automatic be calculated and determined be calibrated it is medical The space coordinates of the whole screen of display.The basis that above two method is realized is whole guide rail mechanism and balance supporting mechanism Space coordinates whole typings of (containing turntable) are simultaneously stored in calibration software module, can be called at any time.YC meter phase Projected position energy real-time display for being calibrated medical display, so that the positioning of central point is very accurate；
4th, the space coordinates of the whole screen of display is calibrated because the present invention has been accurately positioned, and YC meter is fixed On a spinstand (known to turntable space coordinates), therefore in maximum brightness value, brightness (colourity) uniformity, brightness ratio, right Than on calibration software module interface, there is virtual monitor interface schematic diagram corresponding to degree response, angle of visibility these calibration parameters, Relative position that can be in terms of real-time display YC with indicator screen on this schematic diagram；Likewise, for brightness (color Degree) uniformity, angle of visibility the two parameters, be related in calibration process sampled point foundation and movement locus it is default, these are adopted Sampling point and default movement locus can be equally shown on corresponding virtual monitor interface in a schematic manner, be measured simultaneously Progress can by currently measuring sampled point flicker in the form of show；
5th, proposition maximum brightness value calibration steps proposed by the present invention, i.e., if high-high brightness value calibration is unqualified, the quilt Calibrate medical display can not normal work, then the detection of subsequent calibrations parameter is meaningless；The flow of specification calibration；
6th, the present invention is in brightness, uniformity of chromaticity calibration, except the Samples selecting method proposed in international standard Outside, it also add from selected-point method, according to the actual size for being calibrated medical display and needs can be calibrated, by testing staff certainly The main interval (distance) that neighbouring sample point is set, so as to calculate, determine sampled point and predetermined movement automatically by calibration software module Track.The present invention is proposed from selected-point method, can more accurately reflect that the brightness for being calibrated the whole screen of medical display, colourity are equal Even property.After the completion of calibration process, calibration software module calculates whole calibration results automatically, and with the Form generation of " contour map " " intensity map " judges to be calibrated the brightness of medical display to help testing staff with most intuitive way, at a glance Uniformity.Meanwhile brightness, the final calibration result also real-time display after the completion of calculating of uniformity of chromaticity, all calibration data To all initial data be used as to preserve, easy-to-look-up and generation Calibration Report；
7th, devise measurement by several times during the calibration of brightness ratio in the present invention and continuously measure two kinds of measurement patterns.It is wherein continuous Handshake communication of the optimized integration of measurement between calibration software module and test chart software module；
8th, present invention employs calibration software module and the handshake communication of test chart software module, therefore in contrast response Test chart software module can be triggered during calibration automatically to be loaded into and play 1024 rank gray level images, while the broadcasting speed of image can Realized in a manner of by changing " sampling interval " (playing the interval time between two images).YC meter is vertically right True centric point automatic detection brightness value, and brightness value can preserve in real time and the reality in the form of brightness value-image exponent number curve When be shown among calibration software module interface.This method need not both be manually entered, switch image, it is not required that hand-held brightness Colorimeter detects, and does not need manual record brightness calibration result more and manually uses foregoing very complicated formula manual calculations light The numerical value of brightness ratio, last drawing manually again.All processes are all automatically performed, convenient and accurate, and scope can be with It is any to set.It can be realized by inputting numerical value in " sample point " dialog box for any one width test image (1 to 1024 Width image) contrast response calculating, the contrast response for being not limited solely to TG18-LN this 18 width standard testing image calculates And calibration, meanwhile, calibration software module can change and choose by inputting numerical value in " lower limit " and " higher limit " dialog box Brightness value distribution corresponding to test image, so as to realize that contrast response carries out sectional calibration by brightness value；
9th, the present invention, by the mutual cooperation of guide rail mechanism, turntable, realizes that YC meter exists when angle of visibility is calibrated Carry out with the same center of circle -90 ° to+90 ° of rotation in same plane, be aligned in rotary course in YC meter formula and be calibrated doctor With display center position；Using high-precision rotary platform, the anglec of rotation of >=0.02 °/time can be achieved, the anglec of rotation can basis Calibration requirements are arbitrarily set, and mechanical movement is full-automatic, are calculated and storage and full-automatic, realize angle of visibility measurement ( In originally manual, visual method, measurement result precision is low and inaccurate)；In angle of visibility calibration process, the brightness value that collects Data are preserved and are shown on calibration software module interface in the form of brightness value-measurement angle image in real time；
10th, response time of the invention calibration is the superelevation sample frequency based on illumination photometer, the realization of superelevation sample frequency The high-speed collection card of control by to(for) illumination photometer data acquisition.The present invention is adopted using what high speed acquisition card control illumination photometer was read Collection, reaches as high as 4 μ s/ times, the real-time data transmission of collection is simultaneously stored in calibration software module.Calibration software module is sentenced automatically 4 complete rising edges and 4 complete trailing edge data, if meeting condition, calibration software mould whether have not been collected Block sends order and stops high speed acquisition.Built-in two kinds of response time computational methods in calibration software module.Wherein first filtering, rear meter The calculating of response time of the method for calculation suitable for noise on illumination response curve in the case of larger；
11st, the present invention contains whole detection parameters needed for medical display calibration.Integrated medical display is certainly It is easy, easily operated that dynamic calibrating installation and its calibration method install meter, realizes the automation control of different angle on four dimensions System, measurement, conduction, the analysis of data can be completed with the record initial data of efficiently and accurately, system, to replace hand-held measurement, people For positioning, the mode of human eye observation, manpower, time are saved, improves measurement accuracy, reduces human error.Calibration software module In contain medical display whole core parameters calibration function, can be provided for the measurement and calibration of medical display it is objective, Accurately, the detection tool and method flow of standard, significant increase calibration efficiency.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, and It can be practiced according to the content of specification, and to allow the above and other objects, features and advantages of the present invention can be brighter It is aobvious understandable, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Brief description of the drawings
Figure 1A is brightness uniformity examination criteria test image.
Figure 1B is brightness uniformity examination criteria test image.
Fig. 2A is 5 method schematic diagrames of brightness uniformity test point of prior art.
Fig. 2 B are 9 method schematic diagrames of brightness uniformity test point of prior art.
Fig. 2 C are 12 method schematic diagrames of brightness uniformity test point of prior art.
Fig. 3 A are prior art angle of visibility calibration method schematic diagrames.
Fig. 3 B are prior art angle of visibility calibration method schematic diagrames.
Fig. 4 is the GSDF curve synoptic diagrams that measurement of the luma samples of prior art collection to 18 width test images obtains.
Fig. 5 is contrast response's schematic diagram of prior art.
Fig. 6 is in response to time measurement principle schematic.
Fig. 7 is the integrated medical display self-checking device structural representation of the present invention.
Wherein：
1-1：First guide rail 1-2：Second guide rail
1-3：3rd guide rail 1-4：4th guide rail
2：Balanced supporting structure 3：YC meter
4：Illumination photometer 5：Remote control
6：Control unit 7：Control computer
8：It is calibrated medical display 9：It is calibrated the main frame of medical display
Fig. 8 is medical display multi-parameter calibration method and auto-calibration device internal relations schematic diagram of the present invention.
Fig. 9 is calibration software module flow chart of the present invention.
Figure 10 is calibration information typing figure of the present invention.
Figure 11 A are that the present invention is calibrated medical display space coordinates determination-location of the core method schematic diagram, calibration Software module surface chart.
Figure 11 B be the present invention be calibrated medical display space coordinates determination-location of the core method be calibrated it is medical aobvious Show frequency schematic diagram.
Figure 12 A are that the present invention is calibrated the point methods software module section of medical display space coordinates determination-diagonal two Figure.
Figure 12 B be the present invention be calibrated in medical display space coordinates determination-point methods of diagonal two be calibrated it is medical The screen sectional view of display.
Figure 13 is " high-high brightness value calibration " method flow diagram of the invention.
Figure 14 is high-high brightness value calibration of the present invention-calibration software module interface sectional drawing.
Figure 15 is the present invention " brightness, uniformity of chromaticity calibration " method flow diagram.
Figure 16 is brightness of the present invention, uniformity of chromaticity calibration-" 5 methods " software module interface sectional drawing.
Figure 17 is brightness of the present invention, uniformity of chromaticity calibration-" from selected-point method " software module interface sectional drawing.
Figure 18 is brightness of the present invention, uniformity of chromaticity calibration-" from selected-point method " calibration result exemplary plot.
Figure 19 is the present invention " brightness is than calibration " method flow diagram.
Figure 20 is brightness of the present invention than calibration-calibration software module interface and test result example sectional drawing.
Figure 21 is " contrast response's calibration " method flow diagram of the invention.
Figure 22 is contrast response of the present invention-calibration software module interface sectional drawing.
Calibration result exemplary plot when Figure 23 is contrast response-sample point of the present invention=18.
Figure 24 is " angle of visibility calibration " method flow diagram of the invention.
Figure 25 is software module interface sectional drawing in angle of visibility calibration-calibration process of the present invention.
Figure 26 is angle of visibility calibration of the present invention-calibration result example sectional drawing.
Figure 27 is " response time calibration " method flow diagram of the invention.
Figure 28 is response time calibration of the invention-calibration result software module interface sectional drawing.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with Accompanying drawing and preferred embodiment, to according to a kind of integrated medical display self-checking device proposed by the present invention, its is specific Embodiment, structure, feature and its effect, describe in detail as after.
Refer to shown in Fig. 7, present pre-ferred embodiments, there is provided a kind of automatic calibration cartridge of integrated medical display Put, it is mainly made up of hardware system and software module.
Wherein described hardware system includes：Can up and down, left and right and fore-and-aft direction movement guide rail mechanism, can 360 ° rotation Balanced support mechanism 2, YC meter 3, illumination photometer 4, control unit 6 and control computer 7.Wherein described balanced support Mechanism 2 is arranged on guide rail mechanism.Described illumination photometer 4 is arranged on one end in described balanced support mechanism 2；Described is bright Degree colorimeter 3 is arranged on the other end in described balanced support mechanism 2.Described control unit 6 respectively with guide rail mechanism, flat Weighing apparatus supporting mechanism 2, YC meter 3, illumination photometer 4, it is calibrated medical display 8 and control computer 7 electrically connects, it is ensured that they Can be according to the instruction operation of calibration software module, and guide rail is controlled along front, rear, left and right and upper and lower to moving and control rotation Turntable rotates, so as to drive colorimeter rotation twice.
Wherein described software module includes：Calibration software module and test chart software module.Described calibration software mould Block is installed on control computer, for controlling hardware system and realizing record, storage detection device information and calibration data, is easy to Inquire about in the future.Described test chart software module not only includes all standard testing images required for parametric calibration, also built-in Gray value from 0 to 1 equally distributed 1024 GTG test images, and all test images can in each parametric calibration by Test chart software module automatic synchronization matches.
In certain embodiments, the transmission means of described test chart software module is transmitted for CD, and described CD passes Defeated is into CD and to form all test image imprintings " test chart software module ", and read test figure is soft from described CD Part module.When the CD mouth for being calibrated medical display main frame is available, i.e., " test chart software module " is read from CD, and Operated with reference to the main frame for being calibrated medical display.
In further embodiments, the transmission means of described test chart software module is medical delivery system, its be by Test chart software module is imported in the Transmission system of hospital, is transmitted test image to being calibrated doctor by the Transmission system of hospital Use display.Hospitals at Present generally uses PACS system.When the CD mouth for being calibrated medical display main frame is unavailable, by light " test chart software module " in disk is imported in the PACS system of the hospital, is transmitted test image to by school by PACS system Quasi- medical display, and operated with reference to the main frame for being calibrated medical display.
In further embodiments, described hardware system also includes remote control 5, described remote control 5 and control unit 6 Connected using communication, the remote sensor 5 sends instruction to control unit 6, and controls guide rail mechanism edge by control unit 6 Front, rear, left and right and upper and lower are to movement.
In further embodiments, described one end of balanced support mechanism 2 is equipped with turntable, described YC meter 3 It is arranged on turntable, allows YC meter 3 and -90 ° to+90 ° rotations are carried out with the same center of circle in the same plane；It is and another Stably place illumination photometer in one end.
In further embodiments, described guide rail mechanism is made up of 4 guide rails, and the first guide rail 1- is set in fore-and-aft direction The 1 and second guide rail 1-2, the first described guide rail 1-1 and the second guide rail 1-2 are set in parallel in same level, this first 3rd guide rail 1-3 of energy fore-and-aft direction movement is set on guide rail 1-1 and the second guide rail 1-2, set on the 3rd described guide rail 1-3 Put on the 4th guide rail 1-4, the 4th described guide rail 1-4 perpendicular to the 3rd guide rail 1-3, makes the 4th guide rail 1-4 be led along the 3rd vertically Rail 1-3 is moved left and right, and described balanced support mechanism 2 is arranged on the 4th guide rail 1-4, makes balanced support mechanism 2 along the 4th Guide rail moves up and down.Described the first guide rail 1-1, the second guide rail 1-2, the 3rd guide rail 1-3 and the 4th guide rail 1-4 is respectively furnished with one Individual servomotor.
The first described guide rail 1-1, the second guide rail 1-2, the 3rd guide rail 1-3 and the 4th guide rail 1- in further embodiments 4 be lead screw guide rails.
Similar " gantry battle array " mechanism of the guide rail mechanism of the present invention, a balance is placed on by YC meter 3 and illumination photometer 4 The both sides of supporting mechanism 2, to keep balancing, in order to facilitate the rotation of YC meter 3, spy is set on YC meter 3 One turntable, this turntable are arranged on above balanced support mechanism 2.The setting of above-mentioned component is provided to realize The movement of YC meter 3, illumination photometer 4 optional position in three dimensions, while realize YC meter in same level The interior rotation that can be directed at the same center of circle and carry out -90 ° to 90 °.
The core of control computer of the present invention is installed in the calibration software module of the inside of control computer 7, calibration software mould Block sends movement instruction to guide rail mechanism, balanced support mechanism 2 etc., at the same calibration software module be responsible for collecting YC meter 3, The signal that the collection of illumination photometer 4 comes, and the reality of control unit 6 is exactly the actuating station of calibration software module, control unit 6 can be by institute There are guide rail mechanism, balanced support mechanism 2 to also have the data transfer and acquisition system of YC meter 3 and illumination photometer 4 to carry out effective Connection, it is ensured that they can be according to the instruction operation of calibration software module.
As shown in fig.8, the reality of the calibration method using integrated medical display self-checking device of the present invention Now fully rely on the calibration software module in control computer and installed in being calibrated in medical display main frame 9 Test chart software module.
Control unit 6 is controlled by calibration software module, instruction and reception control unit 6 are sent to control unit 6 The signal of return；Hardware system is controlled by control unit 6 again.Wherein, control unit 6 and the controllable guide rail mechanism of remote control 5 Movement, by the movement of the moving belt dynamic balancing supporting mechanism 2 of guide rail mechanism.The rotation of turntable is controlled by control unit 6.
The movement of YC meter 4 is driven by balanced support mechanism 2, the rotation of YC meter is driven by turntable.
The movement of illumination photometer 4 is driven by balanced support mechanism.
By calibration software module as main body, the calibration to being calibrated the parameters of medical display 8 is realized；YC Meter 3 and illumination photometer 4 realize calibration function as main signal picker, auxiliary；In the calibration process of each parameter, by surveying Attempt the corresponding test image of software module simultaneously match, and shown on the screen of medical display 8 is calibrated, aided in Realize calibration function.
Before calibration starts, testing staff installs test chart software module using CD on tested display main frame 9, and this is soft Part module not only comprising all standard testing images needed for detection parameters, also built-in all 1024 GTGs (gray value from 0 to 1 is uniformly distributed) image, to greatest extent meet calibration or scientific research demand.To coordinate the selection of calibration item in control software, Test chart software module can show corresponding test image automatically.The whole series operation operates in control computer, parameters Calibration process can realize automation substantially.
As shown in fig.9, the main flow of calibration software module is：
Step 1：Start calibration software module；
Step 2：Complete to carry out the integrated self-checking device of medical display 8 and be calibrated the pendulum of medical display 8 position, In view of being calibrated the angle of medical display 8 can be adjusted, therefore testing staff need to will be calibrated medical display 8 by plummet Screen adjustment to completely vertical with horizontal plane；Afterwards, testing staff adjusts integrated medical display self-checking device Position, the plane for being formed the first guide rail 1-1 and the second leading screw 1-2 is parallel with the screen for being calibrated medical display 8.Rotation Turn YC meter 3, make YC meter 3 and the screen for being calibrated medical display 8 completely vertical.
Step 3：The importing and selection of test image
Test chart software module carries out handshake communication with calibration software module, can be controlled and triggered not by calibration software module Shown with test image corresponding to calibration parameter and on the screen of medical display 8 is calibrated；
Described test image lead-in mode imports for CD：Testing staff is being calibrated medical display master by CD Test chart software module is installed on machine 9, or the lead-in mode of described test image imports for the mode of medical delivery system, Test chart software module is imported in the Transmission system of hospital, transmitted test image to being calibrated by the Transmission system of hospital The selection of test image described in medical display 8 is that testing staff can show corresponding survey automatically using test chart software module Attempt the function of picture, operation progress is by the selection of altimetric image in control computer；
Step 4：The typing of calibration information
Typing is calibrated the various information of medical display 8 in calibration software module, and integrated medical display is certainly Dynamic calibrating installation preserves these information into the database of calibration software module and convenient inquiry, every calibration result hereafter are equal Associated with the information of typing herein and unified preservation, facilitates follow-up information inquiry and initial data to search.Typing information bound Face is as shown in Figure 10.
Step 5：It is determined that it is calibrated the space coordinates of medical display：
The size and design structure information of integrated medical display self-checking device are had been inserted into calibration software mould In block, calibration software module relies on the existing positional information auxiliary of integrated medical display self-checking device to determine by school The space coordinates of quasi- medical display 8, testing staff use " point methods of diagonal two " or " central point of calibration software module Localization method " is completed to be calibrated positioning and the space coordinates of medical display center.
Step 6：High-high brightness value calibration, before formally parameters calibration is carried out, high-high brightness value calibration is carried out first, If maximum brightness value calibration result is qualified, the calibration of subsequent parameter can be carried out；Otherwise Calibration Report is directly generated.
Carry out successively：
Step 7：YC nonuniformity calibration；
Step 8：Brightness is than calibration；
Step 9：Contrast response calibrates；
Step 10：Angle of visibility is calibrated；
Step 11：Response time calibrates；
Step 12：Preserve calibration result data.
Integrated medical display self-checking device preserves calibration result to database to facilitate follow-up lookup；Simultaneously Calibration Report can be generated to any calibration record, calibration terminates.
Because the core calibration parameter of medical display is that the central point for being calibrated medical display is detected mostly, Typically require that YC meter, illumination photometer perpendicular alignmnet are calibrated the center of display in detection, it is thus determined that being calibrated The center of medical display is particularly important.
Refering to Figure 11 A and Figure 11 B, follow-up calibration for convenience, first have to determine the space for being calibrated medical display Coordinate.Because space coordinates whole typings of integrated medical display self-checking device are to calibration software module, and Calibration software module can control the mechanical movement of integrated each component of medical display self-checking device completely, so being based on The relative position relation of screen 8 of the YC meter 3 with being calibrated medical display, can help calibration software module to determine quilt Calibrate the space coordinates of medical display.Wherein,
Described location of the core method：As shown in Figure 11 A, it is medical to refer to that the automatic reading of calibration software module is calibrated for it The back-end data of display 8, so as to obtain the specific size (width and height) for being calibrated medical display 8.Meanwhile test chart Software module will be displayed in full screen pure white (gray value is equal to a 1) image on the screen of medical display 8 is calibrated, and automatically The round spot (as shown in Figure 11 B) of a black is generated in the center for being calibrated the screen of medical display 8.Testing staff can be with By Figure 11 A- 2. in button under " step distance " project or adjust using remote control 5 locus of YC meter 3, The perpendicular alignmnet of YC meter 3 is calibrated the round spot of the screen centre position of medical display 8, click on " confirmation center " and press Button, so that it is determined that being calibrated the space coordinates of the center of medical display 8.Now, calibration software module combines what is read 8 specific size of medical display and its center space coordinates are calibrated, is calculated and determined that to be calibrated medical display 8 whole The space coordinates of screen.Click on " it is determined that " button, calibration software module, which preserves, is calibrated the space coordinates of medical display 8.It is bright Degree colorimeter 3 projects in the relative position for being calibrated the screen of medical display 8 can be in Figure 11 A- 3. middle real-time displays.
Described diagonal two point methods, Figure 12 A, Figure 12 B are referred to as shown in 12A, Figure 12 B, when calibration software module can not When reading is calibrated the specific size of medical display, the point methods of diagonal two can be used to determine to be calibrated the screen of medical display 8 Space coordinates.Test chart software module is displayed in full screen a pure white (gray value etc. on the screen 8 for be calibrated medical display In 1) image, and the round spot of a black is respectively generated (such as Figure 12 B institutes in the corner for being calibrated the screen 8 of medical display automatically Show).Testing staff is by the button under " step distance " project in adjusting Figure 12 A- 2. or uses remote control, mobile brightness color Degree meter is until 1. or 3. point, and click on " confirming at first point " button in perpendicular alignmnet Figure 12 B；Testing staff is schemed by adjusting afterwards 12A- 2. in button under " step distance " project or using remote control, mobile YC meter is until perpendicular alignmnet Figure 12 B In 2. or 4. point, and click on " confirmation second point " button, be now calibrated a diagonal boundary two of the screen of medical display 8 The space coordinates of point has been recorded in calibration software module, and calibration software module is according to the space coordinates of 2 points of diagonal boundary It can calculate to obtain and be calibrated 8 specific size of medical display and determine that the space for being calibrated the whole screen of medical display is sat Mark.Click on " it is determined that " button, calibration software module, which preserves, is calibrated the space coordinates of medical display 8.YC meter is in quilt The relative position projection for calibrating the screen of medical display can be in Figure 12 A- 3. middle real-time displays.
Being automatically positioned when the above-mentioned space coordinates for being calibrated medical display is by for follow-up all parametric calibrations, without Every time operation is repeated during calibration.
Maximum brightness value refer to be calibrated medical display brightness value it is adjustable in the case of, the maximum that can provide shows bright Angle value.Maximum brightness value is to ensure the primary condition of medical display normal work, is less than when actual maximum brightness value decays to Its nominal maximum brightness value 60% when, the medical display can not normal use.
In the calibration method using integrated medical display self-checking device of the present invention, tackle first in most Big brightness value is calibrated, and judges whether the display is in normal operating conditions.
Refering to shown in Figure 13, high-high brightness value calibration comprises the concrete steps that：
First, medical display 8 will be calibrated to adjust to the maximum nominal luminance value that can reach, and recorded.
Then, calibration software module is opened, by " calibration " menu setecting " high-high brightness value calibration " function in menu bar, is entered Enter maximum brightness value Calibration interface.At the same time, control computer 7 is in handshake communication with being calibrated medical display main frame 9 State, test chart software module trigger and are loaded into TG18-UN80 or image that other gray values are higher is as test image automatically. On maximum brightness value Calibration interface, " central point " button is clicked on, guide rail mechanism can carry the motion of YC meter 3 until brightness The perpendicular alignmnet of colorimeter 3 is calibrated the center of medical display 8.
After above-mentioned steps are completed, " collecting test " button, cooperation of the YC meter 3 in test chart software module are clicked on Lower automatic data collection is calibrated the brightness value 3 times of the center of medical display 8, and calibration software module is for 3 measurement result meters Average value is calculated, and brightness ratio is worth to using average value divided by maximum nominal luminance.If brightness ratio is less than 60%, calibration software Module prompts " it is unqualified to be calibrated medical display "；Conversely, it can proceed with next step calibration.High-high brightness value calibration terminates Afterwards, no matter it is calibrated whether medical display 8 is qualified to be required for clicking on " preservation " button to preserve this calibration result.
Figure 14 is calibration software module " high-high brightness value calibration " software interface sectional drawing corresponding to function.
In the calibration method using integrated medical display self-checking device of the present invention, it is calibrated medical aobvious Show that the maximum brightness value calibration result of device 8 can carry out other specification calibration after qualified
Refering to shown in Figure 15, brightness, uniformity of chromaticity calibration method are：
First, the nominal luminance for being calibrated medical display 8 is adjusted to the 60% of maximum nominal luminance value, and recorded.
Then, calibration software module is opened, by " calibration " menu setecting in menu bar " brightness, uniformity of chromaticity are calibrated " work( Can, into brightness, uniformity of chromaticity Calibration interface.At the same time, control computer 7 is with being calibrated at medical display main frame 9 In handshake communication state, test chart software module triggers and is loaded into TG18-UN80 or image that other gray values are higher is made automatically " figure two (black) " test image is used as " figure one (white) " test image, TG18-UN10 or the relatively low image of other gray values.
, it is necessary to establish sampled point before calibration is started.In foregoing international standard, according to being calibrated medical display liquid Brilliant screen diagonal L size, " 5 methods ", " 9 methods " and " 12 methods " (as shown in Figure 2) is respectively adopted to the bright of display Degree, uniformity of chromaticity are calibrated.
But with the continuous lifting of medical display performance, the pel array of LCD screen is less and less, and screen size is got over Come bigger, therefore existing method can not the intactly overall brightness of reflecting liquid crystal screen, uniformity of chromaticity distribution situation.Therefore this hair It is bright to devise two kinds of methods for establishing sampled point in " brightness, uniformity of chromaticity calibration " function.
Method refering to the first sampled point shown in Figure 16 is to set sampling number method, and it is medical aobvious according to being calibrated Show the diagonal screen dimension L of device 8 size, select sampling number, then click on " building sampled point " button to calculate and build automatically Vertical sampled point.
Method refering to second of sampled point shown in Figure 17 is from selected-point method, and it is to be selected by testing staff " between input Gap ", and the interval inputted in " sampling gap " dialog box between two sampled points (unit is millimeter)；Click on " building sampled point " Button, calibration software module can be calculated and established automatically according to the screen size and " sampling gap " for being calibrated medical display and adopt Sampling point.
Which kind of sampled point no matter is taken to establish mode, calibration software module can be after sampled point establishes completion in software Sampled point and default movement locus are shown in module operation interface, as on the left of Figure 16 and Figure 17 be calibrated medical display Screen diagrams, i.e. wherein black rectangle region.
Establish after sampled point and different images progress uniformity collection may be selected.Select " figure one (white) " and click on " to open Begin collection ", test chart software module receives TG18-UN80 or other gray values is higher after the instruction that calibration software module is sent Image screen be shown in and be calibrated on the screen of medical display 8, and start to carry out according to default sampled point and movement locus bright Degree, the collection of chromatic value.
Likewise, selecting " figure two (black) " and clicking on " starting to gather ", test chart software module receives calibration software module The relatively low image of TG18-UN10 or other gray values is in full screen in the screen for being calibrated medical display after the instruction sent On, and start and " figure one (white) " consistent gatherer process.
This calibration method using it is " snakelike " it is mobile by the way of according to predetermined movement track from upper left corner highest sampling point position Start to the right, move down and gathered data.In calibration process, brightness, uniformity of chromaticity calibration software module also can on interface The sampled point gathered is marked in the form of sampled point flashes.
Refering to shown in Figure 18, after any brightness, uniformity of chromaticity collection are completed, calibration software module can be counted automatically Brightness, uniformity of chromaticity and real-time display are calculated in the lower right of calibration software module operation interface, and according to different sampled points Brightness value helps testing staff with most intuitive way, very clear with the Form generation " intensity map " of " contour map " Ground judges to be calibrated the brightness uniformity of medical display 8.
Medical display 8 is calibrated for any one, it is necessary to measure two kinds of " figure one (white) " and " figure two (black) " simultaneously Brightness, uniformity of chromaticity under different test images.No matter the uniformity first surveyed under any image, as long as not changing sampling Point, you can directly select another piece image and start to calibrate next time.
Medical display 8 is calibrated for same, the calibration result real-time display under different test images corresponding to it exists " completed detection " record inframe in the middle part of Figure 18.Calibration needs to click on " preservation " button after completing every time, to preserve Current all calibration results.Inframe is recorded in " completed detection ", chooses a certain bar to record, is clicked on " deleting storage ", you can Delete this calibration result.
It is the software operation interface sectional drawing that sampled point is established according to " 5 methods " in Figure 16, Figure 17 is that basis is built from selected-point method The software operation interface sectional drawing of vertical sampled point, Figure 18 is the software operation interface sectional drawing that Figure 17 corresponds to measurement result.
Brightness ratio refers under same setting brightness value, and it is larger to be calibrated medical display difference display gray shade value difference Two images when, in the ratio between brightness value that the screen centre position for being calibrated medical display obtains.
Refering to shown in Figure 19, the specific calibration method of " brightness is than calibration " is：
First, will be calibrated that medical display brightness value is arranged to maximum nominal luminance value 60%, and record.
Then, calibration software module is opened, by " calibration " menu setecting in menu bar " brightness is than calibration " function, is entered Brightness compares Calibration interface.In brightness than on Calibration interface, clicking on " central point " button, guide rail mechanism can carry YC The motion of meter 3 is until YC meter perpendicular alignmnet is calibrated the center of medical display 8.
Built-in two kinds of metering systems in " brightness is than calibration " function, you can to choose what is measured or continuously measure by several times Mode.
For the mode of gradation measurement, " the first figure brightness value " corresponding " collection " button is first clicked on, now test chart Software module triggers and TG18-UN10 test images or other gray values is displayed in full screen on medical display 8 is calibrated automatically Relatively low image, YC meter 3 gather center brightness value and the dialog box being automatically displayed under " the first figure brightness value " In；Then " the second figure brightness value " corresponding " collection " button is clicked on, now test chart software module triggers and by school automatically TG18-UN80 test images are displayed in full screen on quasi- medical display 8 or the higher image of other gray values, YC meter 3 are adopted In collection center brightness value and the dialog box being automatically displayed under " the second figure brightness value ".Second of brightness value collection completion Afterwards, according to formula (7), brightness is calculated and be shown compares result of calculation to calibration software module automatically.
For the mode continuously measured, it is only necessary to click on " continuous acquisition " button, now test chart software module is successively touched Send out and TG18-UN10 or the relatively low image of other gray values and TG18-UN80 are displayed in full screen on medical display 8 is calibrated or The higher image measurement image of other gray values, and successively collect two brightness values are shown in " the first figure brightness In dialog box corresponding to value " and " the second figure brightness value ", while according to the automatic calculating of formula (7), display brightness ratio.
Calibrating installation calculates brightness ratio according to calculation formula automatically：
In formula：
Lc- brightness ratio
Lmax- display gray shade value is compared with the brightness value measured by hi-vision
LminBrightness value measured by the relatively low image of-display gray shade value
, it is necessary to click on " preservation " button to preserve this calibration result after brightness terminates than calibration." deletion is deposited for click Storage ", can delete the calibration result stored, remeasure brightness ratio.
Figure 20 is software operation interface sectional drawing and actual alignment result exemplary plot.
Refering to shown in Figure 21, the specific calibration method of " contrast response's calibration " is：
First, will be calibrated that medical display brightness value is arranged to maximum nominal luminance value 60%, and record.
Then, calibration software module is opened, by " calibration " menu setecting in menu bar " contrast response's calibration " function, is entered Enter contrast response's Calibration interface.On contrast response's Calibration interface, " central point " button is clicked on, guide rail mechanism can carry bright The motion of degree colorimeter 3 is until YC meter perpendicular alignmnet is calibrated the center of medical display 8.
" contrast response's calibration " is firstly the need of setting " sampling interval ".Because contrast response is related to several different gray scales Need wait YC meter stable reading to carry out data again afterwards when being worth the measurement of the brightness value of image, therefore switching image to adopt Collection.Gathered for the brightness value of any one width test image center, after being calibrated medical display and showing the image, After test chart software module notifies calibration software module, calibration software module to wait certain " sampling interval " by handshake Brightness value collection is carried out, calibration software module is switched to by handshake notice test chart software module again after collection is completed Next width testing image, so circulation are until the brightness value of all test images is completed." sampling interval " is more than or equal to 30 During millisecond, the brightness value of the medical display of substantially all brands and species, which can be stablized, to be shown.Therefore the calibration side of the parameter In method, it is 30 milliseconds to give tacit consent to the sampling interval used.
After " sampling interval " is provided with, " starting to gather " button is clicked on, test chart software module is triggered and led automatically Enter gray value equally distributed 1024 rank test image, calibration software module from 0 to 1 to carry out in the way of above-mentioned handshake communication The brightness collection of 1024 rank gray level images.In gatherer process, such as Figure 22-1. shown, calibration software module is in brightness-GTG The image exponent number and its brightness values that real-time display has measured in number chart.Treat brightness collection knot corresponding to 1024 rank images Beam, first clicks on " GSDF " button, and calibration software module calculates GSDF songs corresponding to 1024 rank images according to formula (3) and (4) Line.
JND- YC calculation formula are as follows：
In formula：A=71.498068, B=94.593053, C=41.912053, D=9.8247004, E= 0.28175407, F=-1.1878455, G=-0.18014349, H=0.14710899, I=-0.017046845
In international standard recommend using TG18-LN series totally 18 width difference GTGs image carry out contrast response's measurement. Each width image center location is effective measuring area in TG18-LN series, and effective measuring area surrounding is used around black region In influence of the reduction peripheral regions brightness to center detection zone.When actually detected by TG18-LN-01 to TG18-LN-18 this 18 width images are shown to medical display, the brightness values in measurement image center location region, and according to above-mentioned formula (3) successively (4) GSDF curves are calculated to be illustrated in fig. 4 shown below.
In formula：P is the numeral input of system, and i refers to the index for 18 test charts in experiment.
Contrast response is calculated using GSDF slope of a curves.Measured value corresponding to TG18-LN image series Slope δi(contrast measured) can be calculated the distribution of measured value scatterplot by formula (5)；According to GTG standard display function (GSDF) can be calculated by formula (6)(GSDF contrast), i.e. theoretical value curve.
In formula：
L′iBrightness value in-index on i points；
- according to corresponding to GTG standard display function (GSDF) target luminance value.
δiWithCorresponding 0.5 (Ji+Ji-1) (average value of the J values of corresponding brightness measurement) characteristic curve；
δiRespective value withThe threshold value criterion of determination is not to be exceeded in the deviation of respective value.
Now calibration software module acquiescence is chosen 18 width images from 1024 rank image equal intervals and calculated, i.e. " sample Point " default number is 18；" lower limit " and " higher limit " for the 18 width image corresponding brightness values chosen is respectively the 1024th rank figure As the 10% of corresponding brightness value and 90% (about the 102nd and the 922nd width image).Calculated by two steps, click on " preservation " button, System is automatically preserved above-mentioned two steps result of calculation and respective image." deleting storage " is clicked on, the school stored can be deleted Quasi- result, remeasures contrast response.
The advantage of calibration software module is to realize for any by inputting numerical value in " sample point " dialog box The calculating of the contrast response of width image (1 to 1024 width image), it is not limited solely to TG18-LN this 18 width standard testing image Contrast response calculates and calibration.Meanwhile software can be changed by inputting numerical value in " lower limit " and " higher limit " dialog box Brightness value distribution corresponding to image selected by change, so as to realize that contrast response carries out sectional calibration by brightness value.
Figure 22 is calibration software module " contrast response's calibration " software interface sectional drawing corresponding to function.Figure 23 is actually to adopt Collect 1024 rank images, and contrast response's calibration result that " sample point " according to acquiescence, " lower limit " and " higher limit " calculates. The contrast response's theoretical value for calculating and obtaining according to 1024 rank images and its corresponding theoretical brightness value is given in calibration result Curve, and deviation theory value curve ± 5%, ± 10%, ± 15% three groups of threshold boundaries.
Specific calibration method refering to " angle of visibility calibration " shown in Figure 24 is：
First, will be calibrated that the brightness value of medical display 8 is arranged to maximum nominal luminance value 60%, and record.
Then, medical display calibration software module is opened, by " calibration " menu setecting in menu bar " angle of visibility calibration " Function, into angle of visibility Calibration interface.At the same time, control computer is in handshake communication with being calibrated medical display main frame State, test chart software module trigger and are loaded into TG18-UN80 test images or image that other gray values are higher automatically.
On angle of visibility Calibration interface, click on " central point " button, guide rail mechanism can carry YC meter 3 motion until The perpendicular alignmnet of YC meter 3 is calibrated the center of medical display 8.
" angle of visibility calibration " is firstly the need of setting " sampling gap ".The angle of visibility of medical display 8 is calibrated at 0 ° to 180 ° Between change, therefore " sampling gap " determines the number of sampled point.Sampling gap can arbitrarily set sampling gap >=0.02 °. Because angle of visibility calibration accuracy is less demanding, therefore sampling gap is during the calibration of calibration software module default setting angle of visibility 1 °, 180 sampled points altogether.The screen vertical position of medical display 8 is taken and is calibrated as 0 ° of position of starting, YC meter 3 Rotated since original position along the same plane heart concyclic to the left to being undergone with being calibrated the parallel position of medical display 8 Angle is designated as (between -90 ° to 0 °), and along same level, the concyclic heart is rotated to being calibrated to the right since original position The angle that medical display parallel position is undergone is designated as (between 0 ° to+90 °), therefore sampled point corresponding sampling from left to right Angle, which is defined in the range of (between -90 ° to+90 °), to be changed.
Refering to shown in Figure 25, after input " sampling gap ", click on " building sampled point ", calibration software module calculates sampling automatically Point number simultaneously draws predetermined movement track.It is soft that sampling point distributions and movement locus are shown in angle of visibility calibration in schematic form In part module interfaces (such as Figure 25-1.)., also can be with sampled point on angle of visibility calibration software module interface in angle of visibility calibration process The form of flicker marks the sampled point gathered.
Refering to " starting to gather " button shown in Figure 25, is clicked on, angle of visibility calibration acquiescence gathers all sampled points from left to right. Guide rail mechanism and turntable carry YC meter 3 and move to leftmost side original position, and ensure that YC meter 3 is aligned by school The quasi- center of medical display 8 simultaneously measures its brightness value.Guide rail mechanism and turntable synergy, control YC meter 3 In same level equiangularly spaced three-dimensional rotation is carried out according to default sampled point.In rotary course, it is ensured that YC The alignment all the time of meter 3 is calibrated the center of medical display 8.In sampling process, calibration software module real-time display simultaneously records Brightness value corresponding to each sampled point, and brightness-sampling angle curve with angle change is drawn according to the synchronization of these brightness values, Such as Figure 25-2. shown.
Refering to shown in Figure 26, after all sampled points are measured, " calculating angle of visibility " button, calibration software module are clicked on It is automatic calculate and show angle of visibility on angle of visibility calibration software module interface, the critical angle of visibility in left/right side and critical visually bright Angle value.Critical visual brightness value is 10% of maximum brightness value in all sampled points.Determining can be true after critical visual brightness value Critical visible angle in the range of fixed left side (- 90 ° to 0 °) and right side (0 ° to 90 °).The two critical visible angles it is absolute Value sum is angle of visibility.Meanwhile calibration software module identifies critical visual brightness value on brightness-sampling angle curve map And critical visual Angle Position corresponding to left and right sides.
Angle of visibility calibration terminate after, it is necessary to click on " preservation " button to preserve this calibration result." deleting storage " is clicked on, The calibration result stored can be deleted, remeasures angle of visibility.
Figure 25 is the software interface example in calibration software module " angle of visibility calibration " calibration process corresponding to function.Figure 26 It is the example of software interface sectional drawing after the completion of angle of visibility calibration result calculates.
Refering to the response time shown in Figure 27, the specific calibration method of calibration is：
First, will be calibrated that medical display brightness value is arranged to maximum nominal luminance value 60%, and record.
Then, calibration software module is opened, by " calibration " menu setecting in menu bar " response time calibration " function, is entered Response time Calibration interface.At the same time, control computer 7 necessarily be in handshake communication with being calibrated medical display main frame 9 State, test chart software module trigger and are loaded into the alternately black (gray value 0) of flicker and pure white (gray value 1) survey automatically Attempt picture.
On response time calibration software module interface, " central point " button is clicked on, guide rail mechanism carries illumination photometer 3 and moved Until the perpendicular alignmnet of illumination photometer 4 is calibrated the center of medical display 8.
" response time calibration " is firstly the need of setting " sampling time interval ".It is different manufacturers, not of the same race by many experiments Response time corresponding to the medical display of class in millisecond magnitude, therefore the acquisition time interval of illumination photometer must it is sufficiently small with Guarantee the accurate measurement response time.To realize the high speed acquisition of illumination photometer and being engaged with test chart software module, at this In the response time calibration method of invention, using high speed acquisition card control and the illumination numerical value that illumination photometer measures is gathered, is passed in real time Transport to calibration software module.The high-speed collection card highest picking rate that the present invention uses is up to 4 μ s/ points.Ring is used in the present invention Under border, the sampling time interval of calibration software module acquiescence is 32 μ s.
After " sampling time interval " is set, " starting to gather " button is clicked on.Illumination photometer 4 automatically begins to gather, until Calibration software module is identified in the illumination photometer response curve gathered comprising 4 complete rising edges and 4 complete declines Edge, then collection stop.
Built-in two kinds of response time computational methods in this response time calibration method：
The first is calculated according to initial data, clicks in " initial data " one column " calculating the response time " button, Calibration software module calculates according to the initial data measured and is calibrated the response time of medical display 8.
Second of first click " filtering process ", calibration software module carries out the disposal of gentle filter to initial data, then clicks on Corresponding " calculating the response time " button, calculate the response time of the data after filtered processing.
For the present invention by testing different manufacturers, variety classes medical display, there are some quilts in discovery in practice The illumination response curve noise that calibration medical display measures is larger.For the medical display that these noises are larger, directly profit Response time, therefore filtering process function built in calibration software module can not be accurately calculated with initial data, it is ensured that noise is larger Illumination response curve it is filtered after can calculate obtain the respective response time.But the illumination response curve handled after filtering Not primitive curve, thus calculate obtain rising edge/trailing edge response time may be deviated with actual value.By to more The less medical display illumination response curve of stage noise signal is calculated, result of calculation corresponding to initial data with it is filtered Result of calculation difference unobvious corresponding to data after ripple, therefore medical show can be calibrated using filtered result of calculation as this Show the response time of device 8.
Response time calibration terminate after, it is necessary to click on " preservation " button to preserve this calibration result.But two kinds of calculating The mode of response time can only preserve result corresponding to one of which." deleting storage " is clicked on, the calibration knot stored can be deleted Fruit, remeasure the response time.
Figure 28 is that certain calibration result corresponds to calibration software module circle under calibration software module " response time calibration " function Face sectional drawing.
This calibration software module can also realize the calibration of the parameters such as brightness constancy, and testing staff can voluntarily set as needed Determine the time interval and sampling number of Detection of Stability.
Calibration software module can realize data acquisition, analysis, the preservation and lookup of calibration record.Calibration can generate every time The Calibration Report of complete set.
To sum up, the present invention contains whole parameters needed for medical display calibration.Integrated medical display is automatic Calibrating installation design is easy, easily operated, realizes the Automated condtrol of different angle on four dimensions, can be with efficiently and accurately Initial data is recorded, system completes measurement, transmission, the analysis of data, to replace hand-held measurement, artificial positioning, human eye observation Mode, manpower, time are saved, improve measurement accuracy, reduce human error.Medical display is contained in calibration software module Whole core calibration parameters, objective, accurate, standard detection tool and method can be provided for the measurement and calibration of medical display Flow, significant increase calibration efficiency.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification For the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit according to the present invention Any simple modification, equivalent change and modification made to above example, in the range of still falling within technical solution of the present invention.

Claims (23)

  1. A kind of 1. integrated medical display self-checking device, it is characterised in that：Mainly by hardware system and software module Composition,
    Wherein described hardware system includes：
    --- guide rail mechanism, can drive balanced support mechanism realize around and upper and lower three directions movement；
    --- balanced support mechanism, it is arranged on guide rail mechanism, the movement of above-below direction can be done on described guide rail mechanism, together When drive YC meter and illumination photometer movement；
    --- turntable, the one end being arranged in described balanced support mechanism, and drive YC meter in the same plane - 90 ° to 90 ° rotations are carried out with the same center of circle；
    --- YC meter, the bottom of described turntable is arranged on, as main signal picker；
    --- illumination photometer, the other end being arranged in described balanced support mechanism, as main signal picker；
    Described software module includes:
    --- calibration software module, movement instruction is sent to guide rail mechanism and balance supporting mechanism, while be responsible for collecting brightness color The signal that degree meter and illumination photometer collection come, for controlling hardware system and realizing record, storage detection device information and calibration number According to being easy to inquire about in the future；
    --- test chart software module, not only comprising all standard testing images required for parametric calibration, also built-in gray value From 0 to 1 equally distributed 1024 GTG test images, and all test images can be in each parametric calibration by test chart Software module automatic synchronization matches.
  2. 2. a kind of integrated medical display self-checking device according to claim 1, it is characterised in that described Hardware system also includes control unit, described control unit respectively with guide rail mechanism, balanced support mechanism, YC meter, Illumination photometer and it is calibrated the data transfer of medical display and acquisition system is effectively connected, it is ensured that they can be according to calibration The instruction operation of software module, and control guide rail mechanism to be moved around with above-below direction, and control turntable to rotate, So as to drive YC meter to rotate.
  3. 3. a kind of integrated medical display self-checking device according to claim 1, it is characterised in that described Hardware system also includes control computer, and described control computer electrically connects with described control unit, and described calibration is soft Part module is installed on control computer.
  4. 4. a kind of integrated medical display self-checking device according to claim 1, it is characterised in that described Hardware system also includes remote control, and described remote control is attached with control unit using communication, the remote control Device can send instruction to control unit and control guide rail mechanism to be moved around with above-below direction by control unit.
  5. 5. a kind of integrated medical display self-checking device according to any claim in Claims 1-4, It is characterized in that the transmission means of wherein described test chart software module is transmitted for CD, the transmission of described CD is will be all Test image imprinting is into CD and forms " test chart software module ", the read test figure software module from described CD, and Operated with reference to the main frame for being calibrated medical display.
  6. 6. a kind of integrated medical display self-checking device according to any claim in Claims 1-4, It is characterized in that the transmission means of wherein described test chart software module is the Transmission system of hospital, by test chart software module Import in the Transmission system of hospital, transmitted test image to being calibrated medical display by the Transmission system of hospital.
  7. 7. according to a kind of integrated medical display self-checking device described in Claims 1-4 any one, it is special Sign is that described guide rail mechanism is made up of 4 guide rails, is be arranged in parallel the first guide rail and the second guide rail and placement in fore-and-aft direction In on horizontal plane, the 3rd described guide rail is arranged on first guide rail and the second guide rail, the 3rd guide rail is led along first Horizontal plane determined by rail and the second guide rail carries out the movement of fore-and-aft direction, and the 4th described guide rail is vertically arranged at described the On three guide rails, and perpendicular to horizontal plane determined by the first guide rail and the second guide rail, the 4th guide rail is set to be carried out along the 3rd guide rail Left and right directions is moved, and described balanced support mechanism is arranged on the 4th guide rail, and the balanced support mechanism is carried out along the 4th guide rail The movement of above-below direction.
  8. 8. a kind of integrated medical display self-checking device according to claim 7, it is characterised in that described First guide rail, the second guide rail, the 3rd guide rail and the 4th guide rail are respectively furnished with a servomotor.
  9. 9. a kind of integrated medical display self-checking device according to claim 8, it is characterised in that described First guide rail, the second guide rail, the 3rd guide rail and the 4th guide rail are lead screw guide rails.
  10. A kind of 10. calibration method using integrated medical display self-checking device, it is characterised in that it is main include with Lower step：
    Step 1：Start calibration software module；
    Step 2：Carry out integrated medical display self-checking device and be calibrated medical display pendulum position；
    Carry out being calibrated the pendulum position of medical display first；
    Testing staff is extremely completely vertical with horizontal plane by the screen adjustment for being calibrated medical display by plummet；
    Afterwards, the pendulum position of integrated medical display self-checking device is carried out, testing staff passes through control unit and remote control The plane that the first guide rail and the second guide rail of device adjustment guide rail mechanism are formed is parallel with the screen for being calibrated medical display, rotation Turn YC meter, make YC meter and the screen for being calibrated medical display completely vertical；
    Step 3：The importing and selection of test image
    Test chart software module carries out handshake communication with calibration software module, can be controlled by calibration software module and trigger different schools Test image corresponding to quasi- parameter is simultaneously shown on the screen for be calibrated medical display；
    Described test image lead-in mode imports for CD：Testing staff is by CD on medical display main frame is calibrated Test chart software module is installed；Or the lead-in mode of described test image imports for the mode of medical delivery system, will survey Attempt software module to import in the Transmission system of hospital, transmitted test image by the Transmission system of hospital medical to being calibrated Display；
    The selection of described test image is that testing staff can show corresponding test image automatically using test chart software module Function, in control computer operation carry out by the selection of altimetric image；
    Step 4：The typing of calibration information
    Typing is calibrated the various information of medical display in calibration software module, and integrated medical display is calibrated automatically Device preserve these information into the database of calibration software module and it is convenient inquire about, every calibration result hereafter with herein The information of typing is associated and unifies to preserve, and facilitates follow-up information inquiry and initial data to search；
    Step 5：The positioning of medical display center is calibrated, to determine to be calibrated the space coordinates of medical display：
    The size and design structure information of integrated medical display self-checking device are had been inserted into calibration software module, Calibration software module relies on the existing positional information of integrated medical display self-checking device to determine to be calibrated medical show Show the space coordinates of device, testing staff uses " point methods of diagonal two " or " location of the core method " of calibration software module Completion is calibrated positioning and the space coordinates of medical display center；
    Step 6：High-high brightness value calibration, before formally parameters calibration is carried out, high-high brightness value calibration is carried out first, if most Big brightness value calibration result is qualified, then can carry out the calibration of subsequent parameter；Otherwise Calibration Report is directly generated；
    Carry out successively：
    Step 7：YC nonuniformity calibration；
    Step 8：Brightness is than calibration；
    Step 9：Contrast response calibrates；
    Step 10：Angle of visibility is calibrated；
    Step 11：Response time calibrates；
    Step 12：Preserve calibration result data；
    Step 13：Preserve, it is follow-up to facilitate to database that integrated medical display self-checking device preserves calibration result Search；Calibration Report can be generated to any calibration record simultaneously, calibration terminates.
  11. 11. a kind of calibration method using integrated medical display self-checking device according to claim 10, It is characterized in that described location of the core method is calibration software module reads the rear number of units for being calibrated medical display automatically According to acquisition is calibrated the specific width of medical display and the size of height, while test chart software module will be calibrated doctor The solid white image for being equal to 1 with a width gray value is shown on the screen of display, the image center location automatically generate a black Round spot；Testing staff is led by the button under " step distance " project in calibration software module or using remote control control Rail mechanism, with the locus of automatic regulating lightness colorimeter, until making YC meter perpendicular alignmnet be calibrated medical display The round spot of the screen centre position of device, clicks on " confirmation center " button, and calibration software module records present intensity color automatically The space coordinates of meter is spent, that is, the space coordinates for being calibrated medical display center is determined；Now, calibration software module knot What conjunction had been read is calibrated the specific size of medical display and its center space coordinates, is calculated and determined and is calibrated medical show Show the space coordinates of the whole screen of device, click on " it is determined that " button, calibration software module preserves the space for being calibrated medical display Coordinate；During regulation YC meter position, YC meter is relative to the projected position for being calibrated medical display It can will be used for follow-up institute in real-time display, each position obtained in this step in the calibration software module interface of control computer There is being automatically positioned during parametric calibration, without repeating operation during calibration every time.
  12. 12. a kind of calibration method using integrated medical display self-checking device according to claim 10, It is characterized in that the described point methods of diagonal two are that test chart software module is full frame on the screen for be calibrated medical display The solid white image that a width gray value is equal to 1 is shown, and respectively generates the round spot of a black in the corner of this image automatically.
    Testing staff by adjusting button under " step distance " project or using remote control, adjustment control guide rail mechanism it is each The position of bar guide rail, turntable and YC meter, testing staff is first by YC meter relative to being calibrated medical display The projected position of device is adjusted to the upper left angle point being calibrated in the screen of medical display, and clicks on " confirming at first point " button, Testing staff is by the button under regulation " step distance " project or using remote control afterwards, by YC meter relative to quilt The projected position of calibration medical display is adjusted to the bottom right angle point being calibrated in the screen of medical display, and is clicked on and " confirmed Second point " button, now the position of a space of points coordinate of diagonal boundary two be recorded in calibration software module, calibration it is soft Part module obtains according to this 2 points spatial coordinates calculation to be calibrated the specific size of medical display and determines to be calibrated medical show Show the space coordinates of the whole screen of device, click on " it is determined that " button, calibration software module preserves the space for being calibrated medical display Coordinate；YC meter can show in real time relative to the projected position for being calibrated medical display in calibration software module interface Show, being automatically positioned when each space coordinates obtained in this step is by for follow-up all parameter detectings, without detection every time When repeat operation.
  13. It is 13. a kind of using the integrated automatic calibration cartridge of medical display according to any one in claim 10 to 12 The calibration method put, it is characterised in that described high-high brightness value calibration is：
    --- nominal luminance value is set first, medical display will be calibrated and adjusted to the maximum nominal luminance value that can reach, And record；
    --- then, calibration software module is opened, by " calibration " menu setecting " high-high brightness value calibration " function in menu bar；
    --- into " high-high brightness value calibration " interface of calibration software module, at the same time, control computer is with being calibrated doctor Handshake communication state is in display main frame, test chart software module will automatically trigger and be loaded into standard testing image or gray scale The higher image of value is calibrated as test image to the maximum brightness value for being calibrated medical display；
    --- central point is determined, on maximum brightness value Calibration interface, clicks on " central point " button, integrated medical display The space coordinates recorded during the space coordinates that self-checking device will be calibrated medical display according to described determination, it is determined that Center point coordinate, guide rail mechanism can carry the motion of YC meter until YC meter perpendicular alignmnet is calibrated medical display Center；
    --- collection brightness value, " collecting test " button is clicked on, YC meter is automatic under the cooperation of test chart software module Collection is calibrated the brightness value 3 times of medical display center；
    --- brightness ratio is calculated, calibration software module calculates average value for 3 measurement results, and utilizes average value divided by maximum Nominal luminance is worth to brightness ratio, if brightness ratio is less than 60%, calibration software module prompting " is calibrated medical display not conforming to Lattice "；Conversely, it can proceed with next step calibration；
    --- preserve, after high-high brightness value calibration terminates, no matter be calibrated medical display it is whether qualified be required for click on " protect Deposit " button, preserve this calibration result.
  14. It is 14. a kind of using the integrated automatic calibration cartridge of medical display according to any one in claim 10 to 12 The calibration method put, it is characterised in that described brightness, uniformity of chromaticity calibration are：
    --- first, nominal luminance value is set, the nominal luminance for being calibrated medical display is arranged to maximum nominal luminance value 60%, and record；
    --- then, calibration software module is opened, by " calibration " menu setecting in menu bar " brightness, uniformity of chromaticity are calibrated " work( Can, into " brightness, uniformity of chromaticity calibration " interface；At the same time, control computer is with being calibrated at medical display main frame In handshake communication state, test chart software module triggers and is loaded into standard testing image or image that other gray values are higher automatically As " white " test image, standard testing image or the relatively low image of other gray values are used as " black " test image；
    --- sampled point is established, before calibration is started, sampled point need to be established, " selection points " or " input gap " is selected, divides Not using set sampling number method and from selected-point method to being calibrated medical display brightness, uniformity of chromaticity is calibrated no matter Which kind of sampled point is taken to establish mode, calibration software module can operate after sampled point establishes completion in calibration software module Sampled point and default movement locus are shown on interface；
    --- brightness, the collection of chromatic value, selection different images carry out uniformity collection after establishing sampled point, select " white " survey Attempt as and click on " starting to gather ", test chart software module is received standardized test chart after the instruction that calibration software module is sent As or the higher image of other gray values be in full screen on the screen for being calibrated medical display, and start to adopt according to default Sampling point and movement locus carry out brightness, the collection of chromatic value；Equally, select " black " test image and click on " starting to gather ", survey Attempt software module to receive the relatively low image of standard testing image or other gray values after the instruction that calibration software module is sent It is in full screen on the screen for being calibrated medical display, and starts the gatherer process consistent with " white " test image, this calibration Method using it is " snakelike " it is mobile by the way of according to predetermined movement track since the highest sampling point position of the upper left corner to the right, to moving down Dynamic and gathered data, in calibration process, it can also mark in the form of sampled point flashes on calibration software module interface and gather Sampled point；
    --- brightness, uniformity of chromaticity are calculated, after any brightness, uniformity of chromaticity collection are completed, calibration software module Brightness, uniformity of chromaticity and real-time display can be calculated automatically in the lower right of calibration software module operation interface, and are terminating to adopt After collection automatically according to different sampled points brightness value with the Form generation " intensity map " of " contour map ", help testing staff With most intuitive way, judge to be calibrated the brightness uniformity of medical display at a glance；
    Medical display is calibrated for any one, it is necessary to measure bright under the two kinds of different test images in " white " and " black " simultaneously Degree, uniformity of chromaticity, no matter the uniformity first surveyed under any image, as long as not changing sampled point, you can directly select another Width image starts to detect next time；
    --- preserve and delete, medical display is calibrated for same, the calibration result under different test images corresponding to it Real-time display " completed detection " record inframe, every time calibration complete after click on " preservation " button, preserve current institute There is calibration result, record inframe in " completed detection ", choose a certain bar to record, click on " deleting storage ", you can deleting should Bar calibration result.
  15. 15. according to claim 14 using the calibration method of integrated medical display self-checking device, it is characterised in that Described setting sampling number method, be according to be calibrated medical display diagonal screen dimension L size, select " 5 points ", " " or " ", " building sampled point " button is then clicked on to calculate automatically and establish sampled point at 9 points at 12 points.
  16. 16. according to claim 14 using the calibration method of integrated medical display self-checking device, it is characterised in that Described is according to the actual size and calibration needs for being calibrated medical display from selected-point method, and phase is independently set by testing staff The spacing of adjacent two test points, testing staff select " input gap ", and two sampled points are inputted in " sampling gap " dialog box Between interval, unit is millimeter；" building sampled point " button is clicked on, calibration software module meeting basis is calibrated medical display Screen size and " sampling gap " calculate automatically and establish sampled point.
  17. It is 17. a kind of using the integrated automatic calibration cartridge of medical display according to any one in claim 10 to 12 The calibration method put, it is characterised in that be also than calibration including brightness：
    --- first, nominal luminance value is set, medical display brightness value will be calibrated and be arranged to maximum nominal luminance value 60%, and record；
    --- then, calibration software module is opened, by " calibration " menu setecting in menu bar " brightness is than calibration " function, entered " brightness is than calibration " interface, on " brightness is than calibration " interface, " central point " button is clicked on, guide rail mechanism can carry brightness Colorimeter motion is calibrated the center of medical display up to YC meter perpendicular alignmnet, " brightness is than calibration " function In built-in two kinds of metering systems, respectively gradation metering system and the mode continuously measured calibrate.
  18. 18. a kind of calibration method using integrated medical display self-checking device according to claim 17, It is characterized in that the mode of described gradation measurement is：
    " the first figure brightness value " corresponding " collection " button is first clicked on, now test chart software module triggers and by school automatically Standard testing image or the relatively low image of other gray values, YC meter collection centre bit are displayed in full screen on quasi- medical display In the dialog box put brightness value and be automatically displayed under " the first figure brightness value "；
    Then " the second figure brightness value " corresponding " collection " button is clicked on, now test chart software module triggers and by school automatically Standard testing image or the higher image of other gray values, YC meter collection centre bit are displayed in full screen on quasi- medical display In the dialog box put brightness value and be automatically displayed under " the second figure brightness value ", after second of brightness value collection is completed, calibration Than calculation formula, brightness is calculated and be shown than result of calculation according to following brightness in software module automatically,
    <mrow> <msub> <mi>L</mi> <mi>c</mi> </msub> <mo>=</mo> <mfrac> <msub> <mi>L</mi> <mrow> <mi>m</mi> <mi>a</mi> <mi>x</mi> </mrow> </msub> <msub> <mi>L</mi> <mrow> <mi>m</mi> <mi>i</mi> <mi>n</mi> </mrow> </msub> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>7</mn> <mo>)</mo> </mrow> </mrow>
    In formula：
    Lc- brightness ratio
    Lmax- display gray shade value is compared with the brightness value measured by hi-vision
    LminBrightness value measured by the relatively low image of-display gray shade value
    After brightness terminates than calibration, " preservation " button is clicked on, preserves this calibration result, " deleting storage " is clicked on, can delete The calibration result stored, remeasure brightness ratio.
  19. 19. a kind of calibration method using integrated medical display self-checking device according to claim 17, It is characterized in that：The mode of described continuous acquisition is click on " continuous acquisition " button, and now test chart software module is successively touched Send out and standard testing image or the relatively low image of other gray values and standard testing are displayed in full screen on medical display is calibrated The test image of image or the higher image of other gray values, and successively collect two brightness values are shown in " In dialog box corresponding to one figure brightness value " and " the second figure brightness value ", while brightness is calculated as below than formula certainly according to following It is dynamic brightness is calculated and be shown to compare result of calculation：
    <mrow> <msub> <mi>L</mi> <mi>c</mi> </msub> <mo>=</mo> <mfrac> <msub> <mi>L</mi> <mrow> <mi>m</mi> <mi>a</mi> <mi>x</mi> </mrow> </msub> <msub> <mi>L</mi> <mrow> <mi>m</mi> <mi>i</mi> <mi>n</mi> </mrow> </msub> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>7</mn> <mo>)</mo> </mrow> </mrow>
    In formula：
    Lc- brightness ratio
    Lmax- display gray shade value is compared with the brightness value measured by hi-vision
    LminBrightness value measured by the relatively low image of-display gray shade value
    After brightness terminates than calibration, " preservation " button is clicked on, preserves this calibration result, " deleting storage " is clicked on, can delete The calibration result stored, remeasure brightness ratio.
  20. It is 20. a kind of using the integrated automatic calibration cartridge of medical display according to any one in claim 10 to 12 The calibration method put, it is characterised in that described contrast response, which calibrates, is：
    --- first, nominal luminance value is set, medical display brightness value will be calibrated and be arranged to maximum nominal luminance value 60%, and record；
    --- then, calibration software module is opened, by " calibration " menu setecting in menu bar " contrast response's calibration " function, is entered Enter " contrast response's calibration " interface, on " contrast response's calibration " interface, click on " central point " button, guide rail mechanism can be taken With the motion of YC meter until YC meter perpendicular alignmnet is calibrated the center of medical display；
    --- set " sampling interval ", gathered for the brightness value of any one width test image center, it is medical being calibrated After display shows the image, test chart software module notifies calibration software module, calibration software module by handshake Certain " sampling interval " is waited to carry out brightness value collection afterwards, calibration software module is led to by handshake again after collection is completed Know that test chart software module is switched to next width testing image, so circulation is until the brightness value of all test images has been tested Into sampling interval duration is defaulted as 30 milliseconds according to setting is actually needed；
    --- brightness gathers, and after " sampling interval " is provided with, clicks on " starting to gather " button, test chart software module is certainly Dynamic to trigger and import gray value equally distributed 1024 rank test image from 0 to 1, calibration software module is by above-mentioned handshake communication The brightness that mode carries out 1024 rank gray level images gathers, and in gatherer process, calibration software module is in brightness-grey exponent number chart The image exponent number and its brightness values that middle real-time display has measured；
    --- GSDF curves corresponding to 1024 rank images are calculated, to the end of brightness collection corresponding to 1024 rank images, are clicked on " GSDF " button, calibration software module calculate according to JND- YCs calculation formula (3) and GSDF curves calculation formula (4) GSDF curves corresponding to 1024 rank images；
    Calibration software module calculates according to JND- YCs formula：
    <mrow> <mtable> <mtr> <mtd> <mrow> <mi>j</mi> <mrow> <mo>(</mo> <mi>L</mi> <mo>)</mo> </mrow> <mo>=</mo> <mi>A</mi> <mo>+</mo> <mi>B</mi> <mo>&amp;CenterDot;</mo> <msub> <mi>log</mi> <mn>10</mn> </msub> <mrow> <mo>(</mo> <mi>L</mi> <mo>)</mo> </mrow> <mo>+</mo> <mi>C</mi> <mo>&amp;CenterDot;</mo> <msup> <mrow> <mo>(</mo> <mrow> <msub> <mi>log</mi> <mn>10</mn> </msub> <mrow> <mo>(</mo> <mi>L</mi> <mo>)</mo> </mrow> </mrow> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <mi>D</mi> <mo>&amp;CenterDot;</mo> <msup> <mrow> <mo>(</mo> <mrow> <msub> <mi>log</mi> <mn>10</mn> </msub> <mrow> <mo>(</mo> <mi>L</mi> <mo>)</mo> </mrow> </mrow> <mo>)</mo> </mrow> <mn>3</mn> </msup> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <mo>+</mo> <mi>E</mi> <mo>&amp;CenterDot;</mo> <msup> <mrow> <mo>(</mo> <mrow> <msub> <mi>log</mi> <mn>10</mn> </msub> <mrow> <mo>(</mo> <mi>L</mi> <mo>)</mo> </mrow> </mrow> <mo>)</mo> </mrow> <mn>4</mn> </msup> <mo>+</mo> <mi>F</mi> <mo>&amp;CenterDot;</mo> <msup> <mrow> <mo>(</mo> <mrow> <msub> <mi>log</mi> <mn>10</mn> </msub> <mrow> <mo>(</mo> <mi>L</mi> <mo>)</mo> </mrow> </mrow> <mo>)</mo> </mrow> <mn>5</mn> </msup> <mo>+</mo> <mi>G</mi> <mo>&amp;CenterDot;</mo> <msup> <mrow> <mo>(</mo> <mrow> <msub> <mi>log</mi> <mn>10</mn> </msub> <mrow> <mo>(</mo> <mi>L</mi> <mo>)</mo> </mrow> </mrow> <mo>)</mo> </mrow> <mn>6</mn> </msup> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <mo>+</mo> <mi>H</mi> <mo>&amp;CenterDot;</mo> <msup> <mrow> <mo>(</mo> <mrow> <msub> <mi>log</mi> <mn>10</mn> </msub> <mrow> <mo>(</mo> <mi>L</mi> <mo>)</mo> </mrow> </mrow> <mo>)</mo> </mrow> <mn>7</mn> </msup> <mo>+</mo> <mi>I</mi> <mo>&amp;CenterDot;</mo> <msup> <mrow> <mo>(</mo> <mrow> <msub> <mi>log</mi> <mn>10</mn> </msub> <mrow> <mo>(</mo> <mi>L</mi> <mo>)</mo> </mrow> </mrow> <mo>)</mo> </mrow> <mn>8</mn> </msup> </mrow> </mtd> </mtr> </mtable> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>3</mn> <mo>)</mo> </mrow> </mrow>
    In formula：A=71.498068, B=94.593053, C=41.912053, D=9.8247004, E=0.28175407, F =-1.1878455, G=-0.18014349, H=0.14710899, I=-0.017046845 and
    GSDF curve equations：
    <mrow> <msub> <mi>J</mi> <mi>i</mi> </msub> <mo>=</mo> <msub> <mi>J</mi> <mrow> <mi>m</mi> <mi>i</mi> <mi>n</mi> </mrow> </msub> <mo>+</mo> <mfrac> <mrow> <msub> <mi>P</mi> <mi>i</mi> </msub> <mi>&amp;Delta;</mi> <mi>J</mi> </mrow> <mrow> <mi>&amp;Delta;</mi> <mi>P</mi> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>4</mn> <mo>)</mo> </mrow> </mrow>
    In formula：P is the numeral input of system, and i refers to the index for 18 test charts in experiment；
    --- afterwards, carry out contrast response's calculating, testing staff click on " contrast response " button, calibration software module according to Formula (5) and (6) carry out contrast response's calculating,
    <mrow> <msub> <mi>&amp;delta;</mi> <mi>i</mi> </msub> <mo>=</mo> <mfrac> <mrow> <mn>2</mn> <mo>&amp;CenterDot;</mo> <mrow> <mo>(</mo> <msubsup> <mi>L</mi> <mi>i</mi> <mo>&amp;prime;</mo> </msubsup> <mo>-</mo> <msubsup> <mi>L</mi> <mrow> <mi>i</mi> <mo>-</mo> <mn>1</mn> </mrow> <mo>&amp;prime;</mo> </msubsup> <mo>)</mo> </mrow> </mrow> <mrow> <mo>(</mo> <msubsup> <mi>L</mi> <mi>i</mi> <mo>&amp;prime;</mo> </msubsup> <mo>+</mo> <msubsup> <mi>L</mi> <mrow> <mi>i</mi> <mo>-</mo> <mn>1</mn> </mrow> <mo>&amp;prime;</mo> </msubsup> <mo>)</mo> <mo>&amp;CenterDot;</mo> <mo>(</mo> <msub> <mi>J</mi> <mi>i</mi> </msub> <mo>-</mo> <msub> <mi>J</mi> <mrow> <mi>i</mi> <mo>-</mo> <mn>1</mn> </mrow> </msub> <mo>)</mo> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>5</mn> <mo>)</mo> </mrow> </mrow>
    <mrow> <msubsup> <mi>&amp;delta;</mi> <mi>i</mi> <mi>d</mi> </msubsup> <mo>=</mo> <mfrac> <mrow> <mn>2</mn> <mo>&amp;CenterDot;</mo> <mrow> <mo>(</mo> <msubsup> <mi>L</mi> <mi>i</mi> <mrow> <mo>&amp;prime;</mo> <mi>d</mi> </mrow> </msubsup> <mo>-</mo> <msubsup> <mi>L</mi> <mrow> <mi>i</mi> <mo>-</mo> <mn>1</mn> </mrow> <mrow> <mo>&amp;prime;</mo> <mi>d</mi> </mrow> </msubsup> <mo>)</mo> </mrow> </mrow> <mrow> <mo>(</mo> <msubsup> <mi>L</mi> <mi>i</mi> <mrow> <mo>&amp;prime;</mo> <mi>d</mi> </mrow> </msubsup> <mo>+</mo> <msubsup> <mi>L</mi> <mrow> <mi>i</mi> <mo>-</mo> <mn>1</mn> </mrow> <mrow> <mo>&amp;prime;</mo> <mi>d</mi> </mrow> </msubsup> <mo>)</mo> <mo>&amp;CenterDot;</mo> <mo>(</mo> <msub> <mi>J</mi> <mi>i</mi> </msub> <mo>-</mo> <msub> <mi>J</mi> <mrow> <mi>i</mi> <mo>-</mo> <mn>1</mn> </mrow> </msub> <mo>)</mo> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>6</mn> <mo>)</mo> </mrow> </mrow>
    In formula：
    L′iBrightness value in-index on i points；
    - according to corresponding to GTG standard display function (GSDF) target luminance value.
    δiWithCorresponding 0.5 (Ji+Ji-1) (average value of the J values of corresponding brightness measurement) characteristic curve；
    δiRespective value withThe threshold value criterion of determination is not to be exceeded in the deviation of respective value；
    Now calibration software module acquiescence is chosen 18 width images from 1024 rank image equal intervals and calculated, i.e., " sample point " is silent Numerical value is recognized for 18；" lower limit " and " higher limit " for the 18 width image corresponding brightness values chosen is respectively that the 1024th rank image is corresponding The 10% of brightness value and 90%, it is the 102nd and the 922nd width image；
    --- result of calculation is preserved, is calculated by two steps, clicks on " preservation " button, above-mentioned two step is calculated and tied by software module automatically Fruit and respective image are preserved, and are clicked on " deleting storage ", can be deleted the calibration result stored, remeasure contrast sound Should,
    Provided according to standard, the calibration of contrast response evaluated by " contrast response ", it is specified that GSDF calibration results not ± the 15% of its nominal value should be exceeded.
  21. It is 21. a kind of using the integrated automatic calibration cartridge of medical display according to any one in claim 10 to 12 The calibration method put, it is characterised in that described angle of visibility, which is calibrated, is：
    --- first, nominal luminance value is set, medical display brightness value will be calibrated and be arranged to maximum nominal luminance value 60%, and record；
    --- then, calibration software module is opened, by " calibration " menu setecting in menu bar " angle of visibility calibration " function, entered " angle of visibility calibration " interface, at the same time, control computer are in handshake communication state with being calibrated medical display main frame, survey Attempt software module to trigger automatically and be loaded into standard testing image or image that other gray values are higher.
    --- center position is determined, on " angle of visibility calibration " interface, clicks on " central point " button, guide rail mechanism can carry bright The motion of degree colorimeter is until YC meter perpendicular alignmnet is calibrated the center of medical display；
    --- input " sampling gap ", it is calibrated medical display angle of visibility and changes between 0 ° to 180 °, sampling gap can appoint Meaning is set, sampling gap >=0.02 °, and sampling gap is 1 °, altogether 180 when calibration software module default setting angle of visibility is calibrated Sampled point, the screen vertical position for taking and being calibrated medical display are opened for 0 ° of position of starting, YC meter from original position Beginning is rotated to the angle undergone with being calibrated medical display parallel position along the same plane heart concyclic to the left is designated as -90 ° To between 0 °；And along same plane, the concyclic heart is rotated to position parallel with being calibrated medical display to the right since original position Undergone angle is put to be designated as between 0 ° to+90 °, the corresponding sampling angle of sampled point from left to right be defined in -90 ° to+ Change in the range of 90 °；
    --- sampled point is built, after input " sampling gap ", is clicked on " building sampled point ", calibration software module calculates sampled point automatically Count and draw predetermined movement track, sampling point distributions and movement locus are shown in calibration software module interface in schematic form On, in calibration process, also the sampled point gathered can be marked in the form of sampled point flashes on calibration software module interface；
    --- sampled point measures, and clicks on " starting to gather " button, and angle of visibility calibration acquiescence gathers all sampled points, led from left to right Rail mechanism and turntable carry YC meter and move to leftmost side original position, and ensure that the alignment of YC meter is calibrated doctor With display center position and its brightness value is measured, guide rail mechanism and turntable synergy, control YC meter is same Equiangularly spaced three-dimensional rotation is carried out according to default sampled point on horizontal plane, in rotary course, it is ensured that YC meter is all the time Alignment is calibrated the center of the screen of medical display, and in sampling process, calibration software module real-time display simultaneously records every Brightness value corresponding to individual sampled point, and brightness-sampling angle curve according to these brightness values synchronization drafting with angle change；
    --- angle of visibility is calculated, after all sampled points are measured, clicks on " calculating angle of visibility " button, calibration software module is certainly It is dynamic to calculate and show angle of visibility, the critical angle of visibility in left/right side and critical visual brightness value on " angle of visibility calibration " interface, it is critical Visual brightness value is 10% of maximum brightness value in all sampled points, and -90 ° of left side can be determined after determining critical visual brightness value Critical visible angle in the range between 0 ° to+90 ° of between to 0 ° and right side, the absolute value sum of the two critical visible angles As angle of visibility, meanwhile, calibration software module identifies on brightness-sampling angle curve map in " angle of visibility calibration " interface Critical visual Angle Position corresponding to critical visual brightness value and left and right sides；
    --- preserve angle of visibility calibration result, angle of visibility calibration terminate after, it is necessary to click on " preservation " button to preserve this calibration As a result, " deleting storage " is clicked on, the calibration result stored can be deleted, remeasure angle of visibility.
  22. It is 22. a kind of using the integrated automatic calibration cartridge of medical display according to any one in claim 10 to 12 The calibration method put, it is characterised in that described response time calibration：
    --- first, nominal luminance value is set, medical display brightness value will be calibrated and be arranged to maximum nominal luminance value 60%, and record；
    --- calibration software module is opened, by " calibration " menu setecting in menu bar " response time calibration " function, into " response Time calibration " interface, at the same time, control computer and be calibrated medical display main frame and necessarily be in handshake communication state, The black i.e. gray value that test chart software module triggered and be loaded into alternately flicker automatically is 0 and pure white i.e. gray value is 1 test chart Picture；
    --- center is determined, on " response time calibration " interface, clicks on " central point " button, guide rail mechanism carries illumination Meter motion is until illumination photometer perpendicular alignmnet is calibrated the center of medical display；
    --- set " sampling time interval ", using high speed acquisition card control and gather the illumination numerical value that illumination photometer measures, in real time Transmit to calibration software module, described high-speed collection card highest picking rate is up to 4 μ s/ points, when calibration software module samples Between be spaced and set according to the actual requirements, be defaulted as 32 μ s；
    --- collection illumination photometer response curve, after " sampling time interval " is set, click on " starting to gather " button, illumination photometer Automatically begin to gather, until calibration software module is identified in the illumination photometer response curve gathered comprising 4 complete risings Stop along with 4 complete trailing edges, then collection；
    --- the response time is calculated, built-in two kinds of response time computational methods, is respectively：
    The first is calculated according to initial data, clicks in " initial data " one column " calculating the response time " button, calibration Software module calculates according to the initial data measured and is calibrated the medical display response time；
    Second of filtering process method, to click on " filtering process ", calibration software module carries out the disposal of gentle filter to initial data, then " calculating response time " button corresponding to click, calculate the response time of the data after filtered processing；
    --- response time calibration result is preserved, after response time calibration terminates, " preservation " button is clicked on and preserves this calibration knot Fruit, the mode of two kinds of calculating response times can only preserve result corresponding to one of which." deleting storage " is clicked on, deletion has stored Calibration result, remeasure the response time.
  23. 23. a kind of calibration method using integrated medical display self-checking device according to claim 10, It is characterized in that the calibration of the parameters such as brightness constancy can also be realized, the measurement that can be equally automated, testing staff can The time interval and sampling number of sets itself Detection of Stability as needed.
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108198611A (en) * 2018-01-03 2018-06-22 京东方科技集团股份有限公司 A kind of maintaining method of computer implemented medical display
CN109286815A (en) * 2018-11-30 2019-01-29 福建捷联电子有限公司 A kind of positioning of display equipment picture center and automatic testing method
CN110243467A (en) * 2019-06-24 2019-09-17 江苏省建筑工程质量检测中心有限公司 Testing jig is used in a kind of road lighting detection
CN110514303A (en) * 2019-08-22 2019-11-29 杭州电子科技大学温州研究院有限公司 It is a kind of for the display uniformity of Soft proofing and the detection method of grey balance
CN111312130A (en) * 2020-02-28 2020-06-19 云谷（固安）科技有限公司 Array substrate detection method and system
CN112055196A (en) * 2020-08-26 2020-12-08 哈尔滨工业大学 Synchronous acquisition time interval measuring method for two cameras based on light flicker
CN112331159A (en) * 2020-11-20 2021-02-05 深圳市巨烽显示科技有限公司 Fast matching correction device and method for display
CN112666731A (en) * 2020-12-28 2021-04-16 惠州视维新技术有限公司 Method for evaluating viewing angle of display screen
CN113160737A (en) * 2021-04-26 2021-07-23 西安诺瓦星云科技股份有限公司 Display screen correction method and device
CN113686894A (en) * 2021-09-13 2021-11-23 南京巨鲨显示科技有限公司 System and method for image inspection and calibration of medical display
CN113834449A (en) * 2021-11-25 2021-12-24 江苏省计量科学研究院(江苏省能源计量数据中心) Visual angle detection method and device for medical display
CN114859603A (en) * 2022-05-31 2022-08-05 广西民族大学 LCD display screen and definition detection method thereof
CN115278190A (en) * 2021-04-30 2022-11-01 卡莱特云科技股份有限公司 Calibration method, calibration equipment and calibration system for video data display colors
CN117667735A (en) * 2023-12-18 2024-03-08 中国电子技术标准化研究院 Image enhancement software response time calibration device and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130006532A1 (en) * 2011-06-30 2013-01-03 Advan Int'l Corp. Portable calibration apparatus for medical monitor
CN105508837A (en) * 2015-12-31 2016-04-20 深圳科润视讯技术有限公司 Interactive intelligent all-in-one machine and operation method thereof
CN106020366A (en) * 2016-07-21 2016-10-12 叶建新 Automatic-rise-fall computer display device bracket
CN106940993A (en) * 2017-05-23 2017-07-11 京东方科技集团股份有限公司 One kind shows bearing calibration and system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130006532A1 (en) * 2011-06-30 2013-01-03 Advan Int'l Corp. Portable calibration apparatus for medical monitor
CN105508837A (en) * 2015-12-31 2016-04-20 深圳科润视讯技术有限公司 Interactive intelligent all-in-one machine and operation method thereof
CN106020366A (en) * 2016-07-21 2016-10-12 叶建新 Automatic-rise-fall computer display device bracket
CN106940993A (en) * 2017-05-23 2017-07-11 京东方科技集团股份有限公司 One kind shows bearing calibration and system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
马玉敏 等: "医用显示器DICOM自动校正系统的设计与实现", 《中国新技术新产品》 *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108198611A (en) * 2018-01-03 2018-06-22 京东方科技集团股份有限公司 A kind of maintaining method of computer implemented medical display
CN109286815A (en) * 2018-11-30 2019-01-29 福建捷联电子有限公司 A kind of positioning of display equipment picture center and automatic testing method
CN110243467A (en) * 2019-06-24 2019-09-17 江苏省建筑工程质量检测中心有限公司 Testing jig is used in a kind of road lighting detection
CN110243467B (en) * 2019-06-24 2024-01-23 江苏省建筑工程质量检测中心有限公司 Road illumination detects uses test jig
CN110514303A (en) * 2019-08-22 2019-11-29 杭州电子科技大学温州研究院有限公司 It is a kind of for the display uniformity of Soft proofing and the detection method of grey balance
CN111312130A (en) * 2020-02-28 2020-06-19 云谷（固安）科技有限公司 Array substrate detection method and system
CN112055196A (en) * 2020-08-26 2020-12-08 哈尔滨工业大学 Synchronous acquisition time interval measuring method for two cameras based on light flicker
CN112331159B (en) * 2020-11-20 2022-03-11 深圳市巨烽显示科技有限公司 Fast matching correction device and method for display
CN112331159A (en) * 2020-11-20 2021-02-05 深圳市巨烽显示科技有限公司 Fast matching correction device and method for display
CN112666731A (en) * 2020-12-28 2021-04-16 惠州视维新技术有限公司 Method for evaluating viewing angle of display screen
CN112666731B (en) * 2020-12-28 2024-02-06 惠州视维新技术有限公司 Visual angle evaluation method of display screen
CN113160737A (en) * 2021-04-26 2021-07-23 西安诺瓦星云科技股份有限公司 Display screen correction method and device
CN115278190A (en) * 2021-04-30 2022-11-01 卡莱特云科技股份有限公司 Calibration method, calibration equipment and calibration system for video data display colors
CN113686894B (en) * 2021-09-13 2023-02-24 南京巨鲨显示科技有限公司 System and method for image inspection and calibration of medical display
CN113686894A (en) * 2021-09-13 2021-11-23 南京巨鲨显示科技有限公司 System and method for image inspection and calibration of medical display
CN113834449A (en) * 2021-11-25 2021-12-24 江苏省计量科学研究院(江苏省能源计量数据中心) Visual angle detection method and device for medical display
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CN117667735A (en) * 2023-12-18 2024-03-08 中国电子技术标准化研究院 Image enhancement software response time calibration device and method

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