CN105389809B - Measurement of the display characteristics mthods, systems and devices - Google Patents
Measurement of the display characteristics mthods, systems and devices Download PDFInfo
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- CN105389809B CN105389809B CN201510708530.6A CN201510708530A CN105389809B CN 105389809 B CN105389809 B CN 105389809B CN 201510708530 A CN201510708530 A CN 201510708530A CN 105389809 B CN105389809 B CN 105389809B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
- G06T7/001—Industrial image inspection using an image reference approach
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30121—CRT, LCD or plasma display
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Abstract
The present invention relates to a kind of measurement of the display characteristics method and system, measurement of the display characteristics devices, wherein above-mentioned measurement of the display characteristics method includes the following steps：Receive the test instruction that test shows equipment display performance；Wherein, the test instruction includes showing signal path, information source and the testing process of equipment；The signal path that equipment is shown according to the test instruction selection controls the display equipment and obtains test image from corresponding information source by the signal path and shown；The test image of display is shot, the first shooting image is obtained；According to the testing process and the first shooting image to showing that equipment carries out measurement of the display characteristics accordingly, and export the test result of the measurement of the display characteristics.The automation of measurement of the display characteristics process may be implemented in apparatus testing method provided by the invention and system, measurement of the display characteristics device, improves the testing efficiency for showing equipment.
Description
Technical field
The present invention relates to hardware testing technical fields, more particularly to a kind of measurement of the display characteristics mthods, systems and devices.
Background technology
With the fast development of electronic equipment, TV, display, interactive intelligent tablet computer etc. show that equipment incorporates people extensively
Work and life, and will have lasting market capacity.
Currently, above-mentioned display equipment is in complete machine production process, the degree of automation is relatively low, especially system test link,
Manual testing is more depended on, keeps the testing efficiency of related display device low, becomes and restricts the bottleneck that the field production capacity is promoted.
Invention content
Based on this, it is necessary to for the technical problem that the prior art causes related display device testing efficiency low, provide one
Kind measurement of the display characteristics mthods, systems and devices.
A kind of measurement of the display characteristics method, includes the following steps：
Receive the test instruction that test shows equipment display performance；Wherein, the test instruction includes showing the letter of equipment
Number channel, information source and testing process；
The signal path that equipment is shown according to the test instruction selection, it is logical by the signal to control the display equipment
Road obtains test image from corresponding information source and is shown；
The test image of display is shot, the first shooting image is obtained；
According to the testing process and the first shooting image to showing that equipment carries out measurement of the display characteristics accordingly, and
Export the test result of the measurement of the display characteristics.
Above-mentioned measurement of the display characteristics method, by receiving dependence test instruction, to select the signal path of display equipment,
Control shows that equipment obtains test image from corresponding information source and shows；The test image shown by display equipment is clapped again
Take the photograph, obtain the first shooting image, so according to the testing process and the first shooting image to show accordingly equipment into
Row measurement of the display characteristics, and carry out the output of above-mentioned test result；Above-mentioned measurement of the display characteristics process without rely on manually into
Row is tested by platform, realizes the automation of display equipment measurement of the display characteristics, can improve the testing efficiency of display equipment.
In one embodiment, it is above-mentioned according to the testing process and it is described first shooting image to showing equipment accordingly
Measurement of the display characteristics is carried out, and the step of exporting the test result of the measurement of the display characteristics includes：
Image, which is shot, by described first carries out pixel ratio pair with template image；Wherein, the template image is the test
Image corresponding original image at information source；
Each pixel in the first shooting image is obtained with respective pixel point in the template image in each face
Difference on colouring component；
According to the difference to showing that equipment carries out measurement of the display characteristics accordingly.
In above-described embodiment, the first shooting image is compared with corresponding templates image, to obtain by accordingly showing
The difference of the first shooting image and template image that equipment shows and shot by image acquisition equipment, above-mentioned difference has
Each pixel in the first shooting image can be shown as with respective pixel point in the template image in each color component
On difference, the test result of above-mentioned display equipment is obtained further according to above-mentioned difference, allows the more comprehensive table of test result
Sign shows the display capabilities of equipment, can ensure the accuracy of above-mentioned test result.
As one embodiment, it is above-mentioned according to the difference to show accordingly equipment carry out measurement of the display characteristics the step of
Including：
The difference is normalized, the corresponding normalized value of each pixel is obtained；
Judge whether each normalized value is in preset range；
If so, the measurement of the display characteristics of the judgement display equipment passes through, otherwise do not pass through.
In above-described embodiment, above-mentioned difference is normalized, obtains the corresponding normalized value of each pixel, then
Respectively according to each normalized value judge to show accordingly equipment whether test passes, so that the object wherein judged is passed through and return
One changes processing is simplified later, can reduce the complexity of corresponding deterministic process, improve judging efficiency, and then improves above-mentioned aobvious
Show the testing efficiency of equipment.
In one embodiment, further include before above-mentioned reception test shows the step of test instruction of equipment display performance：
Correcting image to the display equipment is sent to be shown；Wherein, the correcting image is the complete white image of color；
The correcting image is shot, the second shooting image is obtained；
Corner Detection is carried out to the second shooting image, obtains four angle points of the second shooting image；
Four correction angle points are obtained respectively according to four angle points and preset transformation matrix, and according to described four
It corrects angle point and determines the area-of-interest for showing equipment；Wherein, the area-of-interest is the rectangle that four correction angle points are constituted
Region；Test image is obtained from corresponding information source to show in the area-of-interest；
Test image the step of shooting, obtaining the first shooting image of described pair of display includes：
The test image is shown in the area-of-interest；
The test image shown on the area-of-interest is shot, the first shooting image is obtained.
Above-described embodiment, by the complete white correcting image of transmission color to the display equipment, then shot accordingly,
The operations such as detection obtain the area-of-interest of the display equipment, allow follow-up test process directly against display equipment upper
It states the image shown in area-of-interest to carry out, it can be interfered to test to avoid the image data of display device screen edge
Technical problem, ensure that the validity of test data used, and then improve the accuracy of corresponding test result.
As one embodiment, after the step of above-mentioned test image to display shoots, obtains the first shooting image,
Further include：
The coordinate of four corrections angle point in the display device is obtained respectively, obtains the coordinate ginseng of the area-of-interest
Number；
The first shooting image is cut according to the coordinate parameters；
According to the first shooting image after cutting to showing that equipment carries out measurement of the display characteristics accordingly.
In above-described embodiment, according to corresponding the first shooting of the rectangle parameter cutting image of the area-of-interest, and according to
First shooting image described in the first shooting image update after cutting makes to be subsequently used for the of the display equipment measurement of the display characteristics
One shooting image is the image data in above-mentioned area-of-interest, avoids the image data of above-mentioned display device screen edge
The problem of interfering its measurement of the display characteristics, ensure that in test process, the validity of related data, can improve corresponding test knot
The accuracy of fruit.
A kind of measurement of the display characteristics system, including：
Receiving module shows the test instruction of equipment display performance for receiving test；Wherein, the test, which instructs, includes
Show signal path, information source and the testing process of equipment；
Selecting module, the signal path for showing equipment according to the test instruction selection, controls the display equipment
Test image is obtained from corresponding information source and shown by the signal path；
Taking module is shot for the test image to display, obtains the first shooting image；
Test module, for shooting image to showing that equipment is shown accordingly according to the testing process and described first
Show performance test, and exports the test result of the measurement of the display characteristics.
Above-mentioned measurement of the display characteristics system, by receiving dependence test instruction, to select the signal path of display equipment,
Control shows that equipment obtains test image from corresponding information source and shows；The test image shown by display equipment is clapped again
It takes the photograph, obtains the first shooting image, and then root shoots image to showing equipment accordingly according to the testing process and described first
Measurement of the display characteristics is carried out, and exports the test result of the measurement of the display characteristics；It is not necessarily in above-mentioned measurement of the display characteristics process
It relies on artificial progress to test by platform, realizes the automation of display equipment measurement of the display characteristics, the survey of display equipment can be improved
Try efficiency.
In one embodiment, above-mentioned test module includes：
Comparing module carries out pixel ratio pair for shooting image by described first with template image；Wherein, the Prototype drawing
As being the test image corresponding original image at information source；
Statistical module, for obtaining each pixel picture corresponding to the template image in the first shooting image
Difference of the vegetarian refreshments on each color component；
Performance test module, for according to the difference to show accordingly equipment carry out measurement of the display characteristics.
In above-described embodiment, the first shooting image is compared with corresponding templates image, to obtain by accordingly showing
The difference of the first shooting image and template image that equipment shows and shot by image acquisition equipment, above-mentioned difference has
Each pixel in the first shooting image can be shown as with respective pixel point in the template image in each color component
On difference, the test result of above-mentioned display equipment is obtained further according to above-mentioned difference, allows the more comprehensive table of test result
Sign shows the display capabilities of equipment, can ensure the accuracy of above-mentioned test result.
A kind of measurement of the display characteristics device, including：Server, several controllers and several image acquisition equipments；
The controller and image acquisition equipment connect one to one, and each controller is separately connected the server, respectively
A controller is separately connected a display equipment to be measured；
The server sends test instruction to the controller；Wherein, the test instruction includes being shown for be tested
Show equipment selection signal channel, the information source of test and the instruction of testing process；
The controller receives the test instruction, and the letter of equipment is shown according to the signal path selection of the test instruction
Number channel controls the display equipment and from corresponding information source acquisition test image and is shown by the signal path；
The controller controls corresponding image acquisition equipment and is shot to the test image of display, obtains the first shooting
Image, and according to the testing process and the first shooting image to showing that equipment carries out measurement of the display characteristics accordingly, and
The test result of the measurement of the display characteristics is exported, and the test result of the measurement of the display characteristics is sent to server.
Above-mentioned measurement of the display characteristics device, by the way that server is separately connected each controller, by above-mentioned each controller
It connects one to one with image acquisition equipment, each controller is also respectively connected with a display equipment to be measured；Make above-mentioned service
Device can send test instruction to the controller；The controller receives the test instruction, is instructed and is selected according to the test
The signal path of display equipment is selected, the display equipment is controlled and test image is obtained from corresponding information source by the signal path
And it is shown；After the display equipment shows the test image；Above controller can control corresponding image acquisition and set
It is standby that the test image of display is shot, the first shooting image is obtained, to shoot image to showing accordingly according to described first
Show that equipment carries out measurement of the display characteristics, and the test result is sent to server；Above-mentioned server receives above-mentioned test knot
Above-mentioned test result can be stored or be sent to relevant registering apparatus, to record the survey of respective display apparatus by fruit
Information is tried, is used in subsequent production or maintenance for the display equipment.It can be right using above-mentioned measurement of the display characteristics device
Show that equipment carries out whole-course automation test, test process, which does not have to rely on, manually to carry out testing by platform, improves display equipment
Testing efficiency.In addition, in upper measurement of the display characteristics device, server can connect multiple controllers simultaneously, make each control
Device can simultaneously test different display equipment, and on the basis of ensureing to test effect, it is aobvious to further improve test
Show the efficiency of equipment.
In one embodiment, above-mentioned server reads simultaneously load test flow script, and is held by starting script engine
The content of the row testing process script sends test instruction to corresponding controller according to the result of execution.
In above-described embodiment, display equipment for required test and it is connected between above-mentioned display equipment and server
Controller, obtain and load corresponding testing process script, start the content that script engine executes the testing process script,
Test instruction is sent to corresponding controller according to the result of execution, so that controller is instructed according to above-mentioned test targeted
To showing that equipment is tested accordingly.
In one embodiment, above-mentioned server creates the corresponding control line of each controller according to the controller connected
Journey, each controller receive the test instruction according to corresponding control thread respectively, and the test that the controller is obtained
As a result it is sent to server.
In above-described embodiment, server can be respectively that each controller creates corresponding control process so that it can logical
Cross above-mentioned control process to corresponding controller send test instruction, the controller can also by its corresponding control process to
Server uploads test result, in this way, in each controller during carrying out above-mentioned data interaction with server, it can
The independence for keeping it to communicate, does not interfere with the communication of other controllers and server, will not be by the logical of other controllers
Letter interference, it is ensured that server sends or obtain the accuracy of related data to each controller.
Description of the drawings
Fig. 1 is the measurement of the display characteristics method flow diagram of one embodiment；
Fig. 2 is the measurement of the display characteristics system structure diagram of one embodiment；
Fig. 3 is the measurement of the display characteristics apparatus structure schematic diagram of one embodiment.
Specific implementation mode
Below in conjunction with the accompanying drawings to the specific implementation mode of measurement of the display characteristics mthods, systems and devices provided by the invention into
Row detailed description.
With reference to figure 1, Fig. 1 show the measurement of the display characteristics method flow diagram of one embodiment, includes the following steps：
S10 receives the test instruction that test shows equipment display performance；Wherein, the test instruction includes display equipment
Signal path, information source and testing process；
In above-mentioned steps S10, server can be connected multiple controllers simultaneously, by server respectively to each control
Device sends test instruction, then tests different display equipment simultaneously by each controller.
Before above-mentioned server sends test instruction to controller, it can be directed to different display equipment, Yi Jilian respectively
The controller being connected between above-mentioned display equipment and server loads corresponding testing process script, and is drawn by starting script
The content for executing the testing process script is held up, test instruction is sent to corresponding controller, in this way, control according to the result of execution
Device processed can be instructed according to above-mentioned test targetedly to showing that equipment is tested accordingly.
S20 shows the signal path of equipment according to the test instruction selection, controls the display equipment and pass through the letter
Number channel obtains test image from corresponding information source and is shown；
In above-mentioned steps S20, different picture signals, such as from television tower, DVD (digital versatile disc), network
The picture signals such as video typically are provided with different signal paths；From the corresponding test instruction of different display equipment may include for
The contents such as display equipment selection signal channel, the corresponding information source of the signal path and the testing process；It can be referred to according to test
It enables selection show the signal path of equipment, above-mentioned display equipment is shown as test image according to which kind of picture signal using selecting
Show that performance is tested, in this way, above-mentioned display equipment can be by showing that the high test image of matching degree completes its own
Test.
S30 shoots the test image of display, obtains the first shooting image；
In above-mentioned steps S30, it can be shot using the test image that image acquisition equipment shows display equipment；On
Stating image acquisition equipment can connect one to one with the above-mentioned controller for measurement of the display characteristics, and controller can control phase
The image acquisition equipment shooting answered shows the image that equipment is shown；Above-mentioned image acquisition equipment is that industrial camera etc. can be with shooting figure
Picture, and with higher picture steadiness, the equipment of high-transmission ability and high anti-jamming capacity, equipment is obtained by described image
Shoot the test image shown by above-mentioned display equipment, it is ensured that the first shooting image and the survey shown by display equipment
The consistency for attempting picture, to ensure the accuracy of test result.
S40, according to the testing process and the first shooting image to showing that equipment carries out display performance survey accordingly
Examination, and export the test result of the measurement of the display characteristics.
In above-mentioned steps S40, the controller for measurement of the display characteristics can be according to the testing process and described first
Shooting image to showing that equipment progress measurement of the display characteristics can be defeated by above-mentioned test result after obtaining test result accordingly
Go out to server；Above-mentioned server receives above-mentioned test result, can be stored or be sent to phase by above-mentioned test result
The registering apparatus of pass, to record the test information of respective display apparatus, for the display equipment in subsequent production or maintenance
It uses.
Measurement of the display characteristics method provided in this embodiment, by receiving dependence test instruction, to select display equipment
Signal path, control shows that equipment is obtained from corresponding information source and test image and shows；Again to the survey shown by display equipment
Attempt, as being shot, to obtain the first shooting image, and then root shoots image to phase according to the testing process and described first
The display equipment answered carries out measurement of the display characteristics, and exports the test result of the measurement of the display characteristics；In above-mentioned display performance
Test process is tested without relying on artificial progress by platform, is realized the automation of display equipment measurement of the display characteristics, can be improved
Show the testing efficiency of equipment.
In one embodiment, it is above-mentioned according to the testing process and it is described first shooting image to showing equipment accordingly
Measurement of the display characteristics is carried out, and the step of exporting the test result of the measurement of the display characteristics may include：
Image, which is shot, by described first carries out pixel ratio pair with template image；Wherein, the template image is the test
Image corresponding original image at information source；
Each pixel in the first shooting image is obtained with respective pixel point in the template image in each face
Difference on colouring component；
According to the difference to showing that equipment carries out measurement of the display characteristics accordingly.
In the present embodiment, above-mentioned template image is the test image corresponding original image at information source, can will be clapped
Take the photograph above-mentioned test image it is obtained first shooting image be compared with corresponding templates image, with obtain first shooting image and
The difference of template image, above-mentioned difference is with each pixel that can be shown as in the first shooting image and the template image
Difference of the middle respective pixel point on each color component, the test result of above-mentioned display equipment is obtained further according to above-mentioned difference,
So that test result is more comprehensively characterized the display capabilities of display equipment, can ensure the accuracy of above-mentioned test result.
As one embodiment, it is above-mentioned according to the difference to show accordingly equipment carry out measurement of the display characteristics the step of
May include：
The difference is normalized, the corresponding normalized value of each pixel is obtained；
Judge whether each normalized value is in preset range；
If so, the measurement of the display characteristics of the judgement display equipment passes through, otherwise do not pass through.
In above-described embodiment, preset range can be arranged according to the feature of respective display apparatus, can be generally arranged
For relatively small range, such as -0.5% to 0.5% etc.；If each normalized value is in above-mentioned preset range, illustrate
Higher, the display of the display equipment by the test image shown shown by equipment and the consistency of corresponding template image
Performance can pass through test.Above-mentioned difference is normalized, obtains the corresponding normalized value of each pixel, then distinguish
According to each normalized value judge to show accordingly equipment whether test passes, so that the object wherein judged is passed through normalization
It is simplified after processing, the complexity of corresponding deterministic process can be reduced, improve judging efficiency, and then improved above-mentioned display and set
Standby testing efficiency.
In one embodiment, above-mentioned reception test can also wrap before showing the step of test instruction of equipment display performance
It includes：
Correcting image to the display equipment is sent to be shown；Wherein, the correcting image is the complete white image of color；
The correcting image is shot, the second shooting image is obtained；
Corner Detection is carried out to the second shooting image, obtains four angle points of the second shooting image；
Four correction angle points are obtained respectively according to four angle points and preset transformation matrix, and according to described four
It corrects angle point and determines the area-of-interest for showing equipment；Wherein, the area-of-interest is the rectangle that four correction angle points are constituted
Region；Test image is obtained from corresponding information source to show in the area-of-interest；
Test image the step of shooting, obtaining the first shooting image of described pair of display includes：
The test image is shown in the area-of-interest；
The test image shown on the area-of-interest is shot, the first shooting image is obtained.
In the present embodiment, in order to increase the contrast of irrelevant information in display device screen and respective background, display is improved
The discrimination of content shown by equipment needs the color by above-mentioned correcting image to be set as complete white.Since display to be tested is set
For when being put into corresponding measurement jig, placed angle, placement location may be not quite similar, for the ease of carrying out image comparison and figure
As analysis, therefore the deformation for needing the garbage that filtering takes to be generated by perspective with correction often tests one and shows equipment
Before, the test image that it shows can be demarcated by the area-of-interest (ROI) of the display equipment, to avoid positioned at
The interference of the ineffective image datas such as display device screen edge ensures the validity of data used in follow-up test.
Complete white correcting image is sent to the display equipment, since the measurement jig residing for display equipment is to have completely cut off outside
Portion's light source, so the picture taken by image acquisition equipment is other than being tested the screen picture of machine, can be dark
Color can obtain the screen shape for showing equipment after getting the correcting image shown by display equipment.
By carrying out Corner Detection to above-mentioned second shooting image, to meeting the spy that color mutates in that orthogonal direction
Sign point is captured, to obtain four angle points of the second shooting image；Due to test system specific implementation difference or
There are the reasons such as perspective phenomenon in shooting, above-mentioned second shooting image is likely to occur perspective distortion and contains unrelated background image
Information, can be corrected by perspective distortion makes the coordinate of each point on the second shooting image be transformed to corresponding displaing coordinate, above-mentioned
The scheme of perspective distortion correction may include that the coordinate of each point on the second shooting image is multiplied by preset transformation matrix to obtain
Corresponding displaing coordinate.It may be irregular quadrangle that aforementioned four angle point, which is sequentially connected and is formed by closed figure, can be with
So that aforementioned four angle is multiplied by preset transformation matrix, obtain four correction angle points, aforementioned four correction angle point is sequentially connected institute
The closed figure of formation is rectangle；It is the area-of-interest of respective display apparatus that aforementioned four, which corrects the corresponding rectangle of angle point just,.
Above-mentioned transformation matrix can be configured by the second shooting image of comparison with the correcting image shown by equipment is shown.
As one embodiment, the step of above-mentioned acquisition preset transformation matrix, can also include：
The shooting coordinate of four angle points is obtained from the second shooting image；
Obtain the displaing coordinate of four angle points corresponding four points in the correcting image that display equipment is shown；Its
In, above-mentioned second shooting image is consistent with the coordinate system used in the correcting image that show of equipment is shown, i.e., second shoot image and
The corresponding coordinate origin of correcting image that display equipment is shown, the positive direction of each reference axis, unit length are consistent；
Due to there is perspective phenomenon (point taken is near big and far smaller) in shooting process, the displaing coordinate that some can be caused to put in this way
And coordinate of this o'clock in the second shooting image is inconsistent, if for example, the displaing coordinate of certain point is (1,1), by corresponding
After shooting, shooting coordinate is just possible to as (1.02,0.95) in the second shooting image, this o'clock is in the second shooting image
It may also be other values due to the influence of the factors such as shooting distance, shooting angle to shoot coordinate；Above-mentioned displaing coordinate, shooting coordinate
Dimension determined by the attribute of display equipment；
According to the default transformation matrix of dimension of the shooting coordinate and corresponding displaing coordinate of four angle points, according to above-mentioned change
It changes matrix and establishes equation；Wherein, the equation be by the Matrix Multiplication that forms of shooting coordinate with the transformation matrix be equal to by
The matrix of the displaing coordinate composition；
The equation is solved, the value of the transformation matrix is obtained.
In the present embodiment, due to there is perspective phenomenon (point taken is near big and far smaller), the bat of certain points in shooting process
It is inconsistent to take the photograph the coordinate that coordinate may in the display device be shown with it, above-mentioned shooting coordinate is multiplied by above-mentioned transformation matrix, institute
Coordinate included in obtained matrix is just the corresponding value of the displaing coordinate.According to method provided in this embodiment, institute is pre-
If transformation matrix can be used for the test system for showing that equipment, capture apparatus, shooting angle and shooting distance remain unchanged
In, arbitrary point shoots conversion of the coordinate to corresponding displaing coordinate.If showing equipment, capture apparatus, shooting angle and shooting
One or more factor in distance changes, then needs to reset its corresponding transformation matrix, to ensure
Accordingly convert the accuracy of obtained displaing coordinate.
The present embodiment is by sending the complete white correcting image of color to the display equipment, then is shot, examined accordingly
The operations such as survey obtain the area-of-interest of the display equipment, allow follow-up test process directly against display equipment above-mentioned
The image shown in area-of-interest carries out, the skill that it can be interfered to test to avoid the image data of display device screen edge
Art problem, ensure that the validity of test data used, and then improve the accuracy of corresponding test result.
As one embodiment, after the step of above-mentioned test image to display shoots, obtains the first shooting image,
Can also include：
The coordinate of four corrections angle point in the display device is obtained respectively, obtains the coordinate ginseng of the area-of-interest
Number；
The first shooting image is cut according to the coordinate parameters；
According to the first shooting image after cutting to showing that equipment carries out measurement of the display characteristics accordingly.
In the present embodiment, the first shooting image is cut according to the corresponding rectangle parameter of the area-of-interest, and according to sanction
First shooting image described in the first shooting image update after cutting, can be after obtaining the first shooting image using above-mentioned interested
The corresponding rectangle parameter in region accordingly cut and update, and the first shooting image for making to be subsequently used for the measurement of the display characteristics is
Image data in above-mentioned area-of-interest, after avoiding the image data of above-mentioned display device screen edge from interfering
Continuous measurement of the display characteristics, ensures the validity of related data in test process, improves the accuracy of test result.
With reference to figure 2, Fig. 2 show the measurement of the display characteristics system structure diagram of one embodiment, including：
Receiving module 10 shows the test instruction of equipment display performance for receiving test；Wherein, the test instruction packet
Include signal path, information source and the testing process of display equipment；
Selecting module 20, the signal path for showing equipment according to the test instruction selection control the display and set
It is standby that test image is obtained from corresponding information source by the signal path and is shown；
Taking module 30 is shot for the test image to display, obtains the first shooting image；
Test module 40, for shooting image to showing that equipment carries out accordingly according to the testing process and described first
Measurement of the display characteristics, and export the test result of the measurement of the display characteristics.
In one embodiment, above-mentioned test module may include：
Comparing module carries out pixel ratio pair for shooting image by described first with template image；Wherein, the Prototype drawing
As being the test image corresponding original image at information source；
Statistical module, for obtaining each pixel picture corresponding to the template image in the first shooting image
Difference of the vegetarian refreshments on each color component；
Performance test module, for according to the difference to show accordingly equipment carry out measurement of the display characteristics.
The measurement of the display characteristics system of the present invention and the measurement of the display characteristics method of the present invention correspond, in above-mentioned display
The technical characteristic and advantage that the embodiment of performance test methods illustrates are suitable for the implementation of measurement of the display characteristics system
In example, hereby give notice that.
With reference to figure 3, Fig. 3 show the measurement of the display characteristics apparatus structure schematic diagram of one embodiment, including：Server
61, several controllers 62 and several image acquisition equipments 63；
The controller and image acquisition equipment connect one to one, and each controller is separately connected the server 61,
Each controller is separately connected a display equipment to be measured；
The server 61 sends test instruction to the controller；Wherein, test instruction include be to be tested
Show equipment selection signal channel, the information source of test and the instruction of testing process；
The controller receives the test instruction, and the signal path of equipment, control are shown according to the test instruction selection
The display equipment is made to obtain test image from corresponding information source by the signal path and shown；
The controller controls corresponding image acquisition equipment and is shot to the test image of display, obtains the first shooting
Image, and according to the testing process and the first shooting image to showing that equipment carries out measurement of the display characteristics accordingly, and
The test result of the measurement of the display characteristics is exported, and the test result of the measurement of the display characteristics is sent to server 61.
Server connects the above-mentioned test result of 61 receptions, can above-mentioned test result be stored or is sent to and is relevant
Registering apparatus is used for the display equipment in subsequent production or maintenance with recording the test information of respective display apparatus.
In the present embodiment, above-mentioned server 61 can by wired or wireless form respectively with several controllers 62
Connection, to realize the communication between server 61 and each controller.
The controller can connect one to one with above-mentioned image acquisition equipment, and above controller is corresponding by controlling
Image acquisition equipment shooting shows that the image shown by equipment carries out the acquisition of respective image.Above-mentioned image acquisition equipment can be
Industrial camera etc. can shoot image, and with higher picture steadiness, the equipment of high-transmission ability and high anti-jamming capacity.
Above-mentioned each controller is connected respectively a display equipment, and above-mentioned display equipment may be mounted at measurement jig
On, then pass through the modes such as Ethernet, serial ports or infrared ray and the holding communication of corresponding controller.
The measurement of the display characteristics device that above-described embodiment provides will be upper by the way that server is separately connected each controller
It states each controller to connect one to one with image acquisition equipment, each controller is also respectively connected with a display to be measured and sets
It is standby；Above-mentioned server is set to send test instruction to the controller；The controller receives the test instruction, according to institute
The signal path that test instruction selection shows equipment is stated, controls the display equipment by the signal path from corresponding information source
It obtains test image and is shown；After the display equipment shows the test image；Above controller can control accordingly
Image acquisition equipment the test image of display is shot, the first shooting image is obtained, so as to according to first shooting figure
The test result is sent to server by picture to showing that equipment carries out measurement of the display characteristics accordingly；Above-mentioned server connects
Above-mentioned test result is received, above-mentioned test result can be stored or be sent to relevant registering apparatus, it is corresponding to record
The test information for showing equipment is used for the display equipment in subsequent production or maintenance.It is surveyed using above-mentioned display performance
Trial assembly, which is set, can carry out display equipment whole-course automation test, and test process, which does not have to rely on, manually to carry out testing by platform, carries
The high testing efficiency of display equipment.In addition, in upper measurement of the display characteristics device, server can connect multiple controls simultaneously
Device allows each controller to test simultaneously different display equipment, on the basis of ensureing to test effect, further
Improve the efficiency that test shows equipment.
In one embodiment, above controller can compare the first shooting image and template image；Described in acquisition
Each pixel in first shooting image and difference of the respective pixel point on each color component in the template image；It is right
The difference is normalized, and obtains the corresponding normalized value of each pixel；Judging each normalized value is
It is no to be in preset range；If so, judging that the measurement of the display characteristics passes through；Otherwise judge the measurement of the display characteristics not
Pass through.Wherein, above-mentioned template image is the test image corresponding original image at information source.
In one embodiment, after above controller receives the test instruction that server is sent, it is full color can also to be sent
White correcting image is to the display equipment；The display equipment receives and shows the correcting image；At this point, above controller
Image acquisition equipment can be controlled to shoot the correcting image, obtain the second shooting image, and obtain from described image
The second shooting image is obtained in equipment；Corner Detection is carried out to the second shooting image, obtains second shooting figure
Four angle points of picture；Four correction angle points are obtained respectively according to four angle points and preset transformation matrix, and according to institute
It states four correction angle points and determines the area-of-interest for showing equipment；Wherein, the area-of-interest is that four correction angle points are constituted
Rectangular area；Test image is obtained from corresponding information source to show in the area-of-interest.
As one embodiment, above controller shoots the test image of display in control image acquisition equipment,
The first shooting image is obtained, and after obtaining the first shooting image in described image acquisition equipment, can also be obtained respectively
The coordinate of four corrections angle point in the display device, obtains the coordinate parameters of the area-of-interest；According to the coordinate
Parameter cuts the first shooting image；According to the first shooting image described in the first shooting image update after cutting.
In one embodiment, above-mentioned server can read simultaneously load test flow script, and be drawn by starting script
The content for executing the testing process script is held up, test instruction is sent to corresponding controller according to the result of execution.
In the present embodiment, display equipment for required test and it is connected between above-mentioned display equipment and server
Controller obtains and loads corresponding testing process script, starts the content that script engine executes the testing process script, root
Test instruction is sent to corresponding controller according to the result of execution, and controller is allow to be instructed targetedly according to above-mentioned test
To showing that equipment is tested accordingly.
In one embodiment, above-mentioned server can create the corresponding control of each controller according to the controller connected
Thread processed, each controller receive the test instruction according to corresponding control thread respectively, and the controller is obtained
Test result is sent to server.
In the present embodiment, server can be respectively that each controller creates corresponding control process so that it can pass through
Above-mentioned control process sends test instruction to corresponding controller, which can also be by its corresponding control process to clothes
Business device uploads test result, in this way, can be protected during carrying out above-mentioned data interaction with server in each controller
The independence for holding its communication, does not interfere with the communication of other controllers and server, will not be by the communication of other controllers
Interference, it is ensured that server sends or obtain the accuracy of related data to each controller.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of measurement of the display characteristics method, which is characterized in that include the following steps：
It sends correcting image to test and shows that equipment is shown, wherein the correcting image is the complete white image of color；To institute
It states correcting image to be shot, obtains the second shooting image；Corner Detection is carried out to the second shooting image, obtains described the
Four angle points of two shooting images；Four correction angle points are obtained respectively according to four angle points and preset transformation matrix,
And the area-of-interest for showing equipment is determined according to described four correction angle points；Wherein, the area-of-interest is four corrections
The rectangular area that angle point is constituted；
Receive the test instruction that test shows equipment display performance；Wherein, the test instruction includes showing that the signal of equipment is logical
Road, information source and testing process；
The signal path that equipment is shown according to the test instruction selection, control the display equipment by the signal path from
Corresponding information source obtains test image and is shown；
The test image is shown in the area-of-interest；The test image shown on the area-of-interest is clapped
It takes the photograph, obtains the first shooting image；
According to the testing process and the first shooting image to showing that equipment carries out measurement of the display characteristics accordingly, and export
The test result of the measurement of the display characteristics.
2. measurement of the display characteristics method according to claim 1, which is characterized in that described according to the testing process and institute
The first shooting image is stated to showing that equipment carries out measurement of the display characteristics accordingly, and exports the test knot of the measurement of the display characteristics
The step of fruit includes：
Image, which is shot, by described first carries out pixel ratio pair with template image；Wherein, the template image is the test image
The corresponding original image at information source；
Each pixel in the first shooting image is obtained with respective pixel point in the template image in each color minute
Difference in amount；
According to the difference to showing that equipment carries out measurement of the display characteristics accordingly.
3. measurement of the display characteristics method according to claim 2, which is characterized in that it is described according to the difference to corresponding
Show that the step of equipment carries out measurement of the display characteristics includes：
The difference is normalized, the corresponding normalized value of each pixel is obtained；
Judge whether each normalized value is in preset range；
If so, the measurement of the display characteristics of the judgement display equipment passes through, otherwise do not pass through.
4. measurement of the display characteristics method according to claim 1, which is characterized in that the test image of described pair of display carries out
After the step of shooting, obtaining the first shooting image, further include：
The coordinate of four corrections angle point in the display device is obtained respectively, obtains the coordinate parameters of the area-of-interest；
The first shooting image is cut according to the coordinate parameters；
According to the first shooting image after cutting to showing that equipment carries out measurement of the display characteristics accordingly.
5. a kind of measurement of the display characteristics system, which is characterized in that including：
Demarcating module shows that equipment is shown, wherein the correcting image is that color is complete for sending correcting image to test
White image；The correcting image is shot, the second shooting image is obtained；Angle point inspection is carried out to the second shooting image
It surveys, obtains four angle points of the second shooting image；It is obtained respectively according to four angle points and preset transformation matrix
Four correction angle points, and the area-of-interest for showing equipment is determined according to described four correction angle points；Wherein, the region of interest
Domain is the rectangular area that four correction angle points are constituted；
Receiving module shows the test instruction of equipment display performance for receiving test；Wherein, the test instruction includes display
Signal path, information source and the testing process of equipment；
Selecting module, the signal path for showing equipment according to the test instruction selection, controls the display equipment and passes through
The signal path obtains test image from corresponding information source and is shown；
Taking module obtains the first shooting image for being shot to the test image shown on the interested region；
Test module, for shooting image to showing that equipment carries out display accordingly according to the testing process and described first
It can test, and export the test result of the measurement of the display characteristics.
6. measurement of the display characteristics system according to claim 5, which is characterized in that the test module includes：
Comparing module carries out pixel ratio pair for shooting image by described first with template image；Wherein, the template image is
The test image corresponding original image at information source；
Statistical module, for obtaining each pixel in the first shooting image and respective pixel point in the template image
Difference on each color component；
Performance test module, for according to the difference to show accordingly equipment carry out measurement of the display characteristics.
7. a kind of measurement of the display characteristics device, which is characterized in that including：Server, several controllers and several images
Obtain equipment；
The controller and image acquisition equipment connect one to one, and each controller is separately connected the server, each control
Device processed is separately connected a display equipment to be measured；
The controller sends the complete white correcting image of color to the display equipment；
The display equipment receives and shows the correcting image；
Controller control image acquisition equipment shoots the correcting image, obtains the second shooting image, and from institute
It states and obtains the second shooting image in image acquisition equipment；Corner Detection is carried out to the second shooting image, described in acquisition
Four angle points of the second shooting image；Four correction angles are obtained respectively according to four angle points and preset transformation matrix
Point, and the area-of-interest for showing equipment is determined according to described four correction angle points；
The server sends test instruction to the controller；Wherein, the test instruction includes being set for display to be tested
The instruction of alternative signal path, the information source of test and testing process；
The controller receives the test instruction, and the signal path of equipment is shown according to the test instruction selection, controls institute
Display equipment is stated to obtain test image from corresponding information source by the signal path and shown；
The controller controls corresponding image acquisition equipment and claps the test image shown on the interested region
It takes the photograph, obtains the first shooting image, and according to the testing process and the first shooting image to showing that equipment carries out accordingly
Measurement of the display characteristics, and export the test result of the measurement of the display characteristics, and by the test result of the measurement of the display characteristics
It is sent to server.
8. measurement of the display characteristics device according to claim 7, which is characterized in that the server is read and load test
Flow script, and the content of the testing process script is executed by starting script engine, it is sent and is tested according to the result of execution
It instructs to corresponding controller.
9. measurement of the display characteristics device according to claim 7, which is characterized in that the server is according to the control connected
Device processed creates the corresponding control thread of each controller, and each controller receives the test according to corresponding control thread respectively
Instruction, and the test result that the controller obtains is sent to server.
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| CN105872333B (en) * | 2016-05-03 | 2018-11-27 | 广州视源电子科技股份有限公司 | The method and system of the performance of verifying display equipment moving image |
| CN107432748B (en) * | 2016-05-27 | 2021-01-01 | 上海西门子医疗器械有限公司 | Flat panel detector testing system and flat panel detector testing method |
| CN106341682A (en) * | 2016-08-12 | 2017-01-18 | 广州视源电子科技股份有限公司 | Aging function detection method, system and device |
| CN107885180B (en) * | 2016-09-30 | 2021-03-16 | 西门子公司 | Test apparatus and test method |
| CN108243334B (en) * | 2016-12-26 | 2020-04-28 | 研祥智能科技股份有限公司 | Signal source output control method and device |
| CN108362967A (en) * | 2018-04-04 | 2018-08-03 | 上海辛格林纳新时达电机有限公司 | A kind of the test system and test method of elevator display board |
| CN110010044A (en) * | 2019-04-02 | 2019-07-12 | 上海帆声图像科技有限公司 | It is a kind of to show the display detection method of equipment, apparatus and system |
| CN110225336B (en) * | 2019-06-21 | 2022-08-26 | 京东方科技集团股份有限公司 | Method and device for evaluating image acquisition precision, electronic equipment and readable medium |
| CN111629205B (en) * | 2020-07-28 | 2020-11-20 | 天津美腾科技股份有限公司 | System and method applied to industrial camera simulation test |
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