CN105389809A - Display performance testing method, system and device - Google Patents
Display performance testing method, system and device Download PDFInfo
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- CN105389809A CN105389809A CN201510708530.6A CN201510708530A CN105389809A CN 105389809 A CN105389809 A CN 105389809A CN 201510708530 A CN201510708530 A CN 201510708530A CN 105389809 A CN105389809 A CN 105389809A
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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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- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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Abstract
The present invention relates to a display performance testing method, a system and a display performance testing device. The method comprises a step of receiving the testing instruction of testing display equipment display performance, wherein the testing instruction comprises the signal channel of the display equipment, a signal source and a testing process, a step of selecting the signal channel of the display equipment according to the testing instruction and controlling the display equipment to obtain a test image from a corresponding signal source through the signal channel, a step of shooting the displayed test image to obtain a first shooting image, and a step of carrying out display performance testing on the corresponding display equipment according to the testing process and the first shooting image and outputting the testing result of the display performance testing. According to the display performance testing method, the system and the display performance testing device, the automation of the display performance testing process can be realized, and the testing efficiency of the display equipment is improved.
Description
Technical field
The present invention relates to hardware testing technical field, particularly relate to a kind of measurement of the display characteristics mthods, systems and devices.
Background technology
Along with the fast development of electronic equipment, the display devices such as TV, display, interactive intelligent tablet computer extensively incorporate work and the life of people, and will have lasting market capacity.
At present, above-mentioned display device is in complete machine production run, and automaticity is lower, and especially system test link, comparatively depends on manual testing, makes the testing efficiency of related display device low, becomes the bottleneck that this field production capacity of restriction promotes.
Summary of the invention
Based on this, be necessary to cause for prior art the technical matters that related display device testing efficiency is low, a kind of measurement of the display characteristics mthods, systems and devices are provided.
A kind of measurement of the display characteristics method, comprises the steps:
Receive the test instruction of test display device display performance; Wherein, described test instruction comprises the signalling channel of display device, information source and testing process;
Select the signalling channel of display device according to described test instruction, control described display device and obtain test pattern by the information source of described signalling channel from correspondence and show;
The test pattern of display is taken, obtains the first shooting image;
According to described testing process and described first shooting image, measurement of the display characteristics is carried out to corresponding display device, and export the test result of described measurement of the display characteristics.
Above-mentioned measurement of the display characteristics method, by receiving dependence test instruction, thus selects the signalling channel of display device, controls display device and obtains test pattern from corresponding information source and show; Again the test pattern shown by display device is taken, obtain the first shooting image, and then according to described testing process and described first shooting image, measurement of the display characteristics is carried out to corresponding display device, and carry out the output of above-mentioned test result; Manually carry out, by platform test, achieving the robotization of display device measurement of the display characteristics, the testing efficiency of display device can being improved without the need to relying in above-mentioned measurement of the display characteristics process.
In one embodiment, above-mentionedly carry out measurement of the display characteristics according to described testing process and described first shooting image to corresponding display device, and the step exporting the test result of described measurement of the display characteristics comprises:
Described first shooting image and template image are carried out pixel comparison; Wherein, described template image is the original image that described test pattern is corresponding at information source place;
Obtain described first shooting image in each pixel and described template image in the difference of respective pixel point on each color component;
According to described difference, measurement of the display characteristics is carried out to corresponding display device.
In above-described embodiment, first shooting image and corresponding templates image are compared, to be shown by respective display apparatus to obtain and take the first difference of taking image and template image obtained by image acquisition equipment, above-mentioned difference has can show as the difference of respective pixel point on each color component in each pixel in the first shooting image and described template image, the test result of above-mentioned display device is obtained again according to above-mentioned difference, make test result comparatively comprehensively can characterize the display capabilities of display device, the accuracy of above-mentioned test result can be ensured.
As an embodiment, above-mentionedly according to described difference, the step that corresponding display device carries out measurement of the display characteristics to be comprised:
To being normalized of described difference, obtain the normalized value that each pixel is corresponding;
Judge whether each normalized value described is all in preset range;
If so, then judge that the measurement of the display characteristics of described display device passes through, otherwise do not pass through.
In above-described embodiment, above-mentioned difference is normalized, obtain the normalized value that each pixel is corresponding, corresponding display device whether test passes is judged respectively again according to each normalized value, make wherein judged object by being simplified after normalized, the complexity of corresponding deterministic process can be reduced, improve judging efficiency, and then improve the testing efficiency of above-mentioned display device.
In one embodiment, above-mentioned reception also comprises before testing the step of the test instruction of display device display performance:
Send correcting image to described display device to show; Wherein, described correcting image is the entirely white image of color;
Described correcting image is taken, obtains the second shooting image;
Corner Detection is carried out to described second shooting image, obtains four angle points of described second shooting image;
Obtain four respectively according to described four angle points and default transformation matrix and correct angle point, and correct the area-of-interest of angle point determination display device according to described four; Wherein, described area-of-interest is four rectangular areas of correcting angle point and forming; Obtain test pattern from the information source of correspondence to show at described area-of-interest;
The described test pattern to display is taken, and the step obtaining the first shooting image comprises:
Described test pattern is shown at described area-of-interest;
The test pattern that described area-of-interest shows is taken, obtains the first shooting image.
Above-described embodiment, by sending the entirely white correcting image of color to described display device, take accordingly again, detection etc. operates the area-of-interest obtaining described display device, the image that follow-up test process can directly be shown in above-mentioned area-of-interest for display device carries out, the technical matters that the view data of display device screen edge disturbs it to test can be avoided, ensure that the validity of testing data used, and then improve the accuracy of corresponding test result.
As an embodiment, the above-mentioned test pattern to display is taken, and after obtaining the step of the first shooting image, also comprises:
Obtain described four respectively and correct angle point coordinate in the display device, obtain the coordinate parameters of described area-of-interest;
Image is taken according to described coordinate parameters cutting first;
According to the first shooting image after cutting, measurement of the display characteristics is carried out to corresponding display device.
In above-described embodiment, image is taken in the rectangle parameter cutting first corresponding according to described area-of-interest, and take the first shooting image described in image update according to first after cutting, follow-up the first shooting image for this display device measurement of the display characteristics is made to be view data in above-mentioned area-of-interest, the view data avoiding above-mentioned display device screen edge disturbs the problem of its measurement of the display characteristics, ensure that in test process, the validity of related data, can improve the accuracy of corresponding test result.
A kind of measurement of the display characteristics system, comprising:
Receiver module, for receiving the test instruction of test display device display performance; Wherein, described test instruction comprises the signalling channel of display device, information source and testing process;
Select module, for selecting the signalling channel of display device according to described test instruction, control described display device and obtain test pattern by the information source of described signalling channel from correspondence and show;
Taking module, for taking the test pattern of display, obtains the first shooting image;
Test module, for carrying out measurement of the display characteristics according to described testing process and described first shooting image to corresponding display device, and exports the test result of described measurement of the display characteristics.
Above-mentioned measurement of the display characteristics system, by receiving dependence test instruction, thus selects the signalling channel of display device, controls display device and obtains test pattern from corresponding information source and show; Again the test pattern shown by display device is taken, obtain the first shooting image, and then root carries out measurement of the display characteristics according to described testing process and described first shooting image to corresponding display device, and export the test result of described measurement of the display characteristics; Manually carry out, by platform test, achieving the robotization of display device measurement of the display characteristics, the testing efficiency of display device can being improved without the need to relying in above-mentioned measurement of the display characteristics process.
In one embodiment, above-mentioned test module comprises:
Comparing module, for carrying out pixel comparison by described first shooting image and template image; Wherein, described template image is the original image that described test pattern is corresponding at information source place;
Statistical module, for obtain described first shooting image in each pixel and described template image in the difference of respective pixel point on each color component;
Performance test module, for carrying out measurement of the display characteristics according to described difference to corresponding display device.
In above-described embodiment, first shooting image and corresponding templates image are compared, to be shown by respective display apparatus to obtain and take the first difference of taking image and template image obtained by image acquisition equipment, above-mentioned difference has can show as the difference of respective pixel point on each color component in each pixel in the first shooting image and described template image, the test result of above-mentioned display device is obtained again according to above-mentioned difference, make test result comparatively comprehensively can characterize the display capabilities of display device, the accuracy of above-mentioned test result can be ensured.
A kind of measurement of the display characteristics device, comprising: server, several controllers and several image acquisition equipments;
Described controller and image acquisition equipment connect one to one, and each controller connects described server respectively, and each controller connects a display device to be measured respectively;
Described server sends test instruction to described controller; Wherein, described test instruction comprises for display device to be tested selects signalling channel, the information source of test and the instruction of testing process;
Described controller receives described test instruction, selects the signalling channel of display device according to the signalling channel of described test instruction, controls described display device and is obtained test pattern by the information source of described signalling channel from correspondence and shown;
Described controller controls the test pattern of corresponding image acquisition equipment to display and takes, obtain the first shooting image, and according to described testing process and described first shooting image, measurement of the display characteristics is carried out to corresponding display device, and export the test result of described measurement of the display characteristics, and the test result of described measurement of the display characteristics is sent to server.
Above-mentioned measurement of the display characteristics device, by server is connected each controller respectively, connects one to one each controller above-mentioned and image acquisition equipment, and each controller also connects a display device to be measured respectively; Make above-mentioned server can send test instruction to described controller; Described controller receives described test instruction, selects the signalling channel of display device according to described test instruction, controls described display device and is obtained test pattern by the information source of described signalling channel from correspondence and shown; After described display device shows described test pattern; Above-mentioned controller can control the test pattern of corresponding image acquisition equipment to display and take, obtain the first shooting image, to carry out measurement of the display characteristics according to described first shooting image to corresponding display device, and described test result be sent to server; Above-mentioned server receives above-mentioned test result, above-mentioned test result can be carried out storing or be sent to relevant registering apparatus, to record the detecting information of respective display apparatus, for this display device in follow-up production or in safeguarding.Utilize above-mentioned measurement of the display characteristics device can carry out whole-course automation test to display device, its test process need not rely on and manually carry out, by platform test, improve the testing efficiency of display device.In addition, in upper measurement of the display characteristics device, server can connect multiple controller simultaneously, and each controller can be tested different display devices simultaneously, on the basis ensureing test effect, further increases the efficiency of test display device.
In one embodiment, above-mentioned server reads and loads testing process script, and performs the content of described testing process script by booting script engine, sends test instruction to corresponding controller according to the result performed.
In above-described embodiment, for display device and the controller that is connected between above-mentioned display device and server of required test, obtain and load corresponding testing process script, booting script engine performs the content of described testing process script, send test instruction to corresponding controller according to the result performed, controller can be tested corresponding display device targetedly according to above-mentioned test instruction.
In one embodiment, above-mentioned server creates control thread corresponding to each controller according to connected controller, each controller receives described test instruction according to the corresponding thread that controls respectively, and the test result that this controller obtains is sent to server.
In above-described embodiment, server can be respectively each controller and create corresponding control process, make it can send test instruction by above-mentioned control process to corresponding controller, this controller also can upload test result by the control process of its correspondence to server, like this, carrying out in the process of above-mentioned data interaction at each controller with server, just its independence communicated can be kept, the communication of other controllers and server can not be had influence on, also can not by the Communication Jamming of other controllers, can send to each controller or obtain the accuracy of related data by Deterministic service device.
Accompanying drawing explanation
Fig. 1 is the measurement of the display characteristics method flow diagram of an embodiment;
Fig. 2 is the measurement of the display characteristics system architecture schematic diagram of an embodiment;
Fig. 3 is the measurement of the display characteristics apparatus structure schematic diagram of an embodiment.
Embodiment
Be described in detail below in conjunction with the embodiment of accompanying drawing to measurement of the display characteristics mthods, systems and devices provided by the invention.
With reference to figure 1, Figure 1 shows that the measurement of the display characteristics method flow diagram of an embodiment, comprise the steps:
S10, receives the test instruction of test display device display performance; Wherein, described test instruction comprises the signalling channel of display device, information source and testing process;
In above-mentioned steps S10, server can be connected multiple controller simultaneously, send test instruction by server respectively to each controller, then test different display devices by each controller simultaneously.
Before above-mentioned server sends test instruction to controller, can respectively for different display devices, and the controller be connected between above-mentioned display device and server, load corresponding testing process script, and the content of described testing process script is performed by booting script engine, send test instruction to corresponding controller according to the result performed, like this, controller just can be tested corresponding display device according to above-mentioned test instruction targetedly.
S20, selects the signalling channel of display device according to described test instruction, control described display device and obtained test pattern by the information source of described signalling channel from correspondence and shown;
In above-mentioned steps S20, different picture signals, such as from picture signals such as television tower, DVD (digital versatile disc), Internet videos, generally possesses different signalling channels; The test instruction corresponding from different display device can comprise the content such as information source and testing process selecting signalling channel, this signalling channel corresponding for this display device; The signalling channel of display device can be selected according to test instruction, to select according to which kind of picture signal to test as the display performance of test pattern to above-mentioned display device, like this, above-mentioned display device just can complete the test of himself by the test pattern that display matching degree is high.
S30, takes the test pattern of display, obtains the first shooting image;
In above-mentioned steps S30, image acquisition equipment can be utilized to take the test pattern that display device shows; Above-mentioned image acquisition equipment can connect one to one with the above-mentioned controller for measurement of the display characteristics, and controller can control the image of corresponding image acquisition equipment shooting display device display; Above-mentioned image acquisition equipment is that industrial camera etc. can take image, and there is the equipment of higher picture steadiness, high-transmission ability and high anti-jamming capacity, the test pattern shown by above-mentioned display device is taken by described image acquisition equipment, the consistance of described first shooting image and the test pattern shown by display device can be ensured, thus ensure the accuracy of test result.
S40, carries out measurement of the display characteristics according to described testing process and described first shooting image to corresponding display device, and exports the test result of described measurement of the display characteristics.
In above-mentioned steps S40, the controller for measurement of the display characteristics can carry out measurement of the display characteristics according to described testing process and described first shooting image to corresponding display device, after obtaining test result, can export above-mentioned test result to server; Above-mentioned server receives above-mentioned test result, above-mentioned test result can be carried out storing or be sent to relevant registering apparatus, to record the detecting information of respective display apparatus, for this display device in follow-up production or in safeguarding.
The measurement of the display characteristics method that the present embodiment provides, by receiving dependence test instruction, thus selects the signalling channel of display device, controls display device and obtains test pattern from corresponding information source and show; Again the test pattern shown by display device is taken, obtain the first shooting image, and then root carries out measurement of the display characteristics according to described testing process and described first shooting image to corresponding display device, and export the test result of described measurement of the display characteristics; Manually carry out, by platform test, achieving the robotization of display device measurement of the display characteristics, the testing efficiency of display device can being improved without the need to relying in above-mentioned measurement of the display characteristics process.
In one embodiment, above-mentionedly carry out measurement of the display characteristics according to described testing process and described first shooting image to corresponding display device, and the step exporting the test result of described measurement of the display characteristics can comprise:
Described first shooting image and template image are carried out pixel comparison; Wherein, described template image is the original image that described test pattern is corresponding at information source place;
Obtain described first shooting image in each pixel and described template image in the difference of respective pixel point on each color component;
According to described difference, measurement of the display characteristics is carried out to corresponding display device.
In the present embodiment, above-mentioned template image is the original image that described test pattern is corresponding at information source place, the first shooting image that the above-mentioned test pattern of shooting can be obtained and corresponding templates image are compared, to obtain the difference of the first shooting image and template image, above-mentioned difference has can show as the difference of respective pixel point on each color component in each pixel in the first shooting image and described template image, the test result of above-mentioned display device is obtained again according to above-mentioned difference, make test result comparatively comprehensively can characterize the display capabilities of display device, the accuracy of above-mentioned test result can be ensured.
As an embodiment, above-mentionedly can to comprise the step that corresponding display device carries out measurement of the display characteristics according to described difference:
To being normalized of described difference, obtain the normalized value that each pixel is corresponding;
Judge whether each normalized value described is all in preset range;
If so, then judge that the measurement of the display characteristics of described display device passes through, otherwise do not pass through.
In above-described embodiment, preset range can be arranged according to the feature of respective display apparatus, generally can be set to relatively little scope, and such as-0.5% to 0.5% etc.; If each normalized value is all in above-mentioned preset range, then illustrate by the consistance of the test pattern shown by described display device and corresponding template image higher, the display performance of this display device can by test.Above-mentioned difference is normalized, obtain the normalized value that each pixel is corresponding, corresponding display device whether test passes is judged respectively again according to each normalized value, make wherein judged object by being simplified after normalized, the complexity of corresponding deterministic process can be reduced, improve judging efficiency, and then improve the testing efficiency of above-mentioned display device.
In one embodiment, above-mentioned reception can also comprise before testing the step of the test instruction of display device display performance:
Send correcting image to described display device to show; Wherein, described correcting image is the entirely white image of color;
Described correcting image is taken, obtains the second shooting image;
Corner Detection is carried out to described second shooting image, obtains four angle points of described second shooting image;
Obtain four respectively according to described four angle points and default transformation matrix and correct angle point, and correct the area-of-interest of angle point determination display device according to described four; Wherein, described area-of-interest is four rectangular areas of correcting angle point and forming; Obtain test pattern from the information source of correspondence to show at described area-of-interest;
The described test pattern to display is taken, and the step obtaining the first shooting image comprises:
Described test pattern is shown at described area-of-interest;
The test pattern that described area-of-interest shows is taken, obtains the first shooting image.
In the present embodiment, in order to increase the contrast of irrelevant information in display device screen and respective background, improving the discrimination of the content shown by display device, needing the color of above-mentioned correcting image to be set to entirely white.Due to display device to be tested put into corresponding measurement jig time, placed angle, placement location may be not quite similar, for the ease of carrying out image comparison and graphical analysis, need to filter the garbage photographed and the deformation of correcting because perspective produces, therefore, before often testing a display device, can demarcate the area-of-interest (ROI) of the test pattern of its display by this display device, to avoid the interference being positioned at the ineffective image data such as display device screen edge, ensure the validity of follow-up test data used.
Send entirely white correcting image to described display device, measurement jig residing for display device has completely cut off external light source, so the picture photographed by image acquisition equipment is except the screen picture of tested machine, it can be all darker color, after getting the correcting image shown by display device, the screen shape of display device can be obtained.
By carrying out Corner Detection to above-mentioned second shooting image, catch meeting the unique point that color in that orthogonal direction undergos mutation, to obtain four angle points of described second shooting image; There is the reasons such as perspective phenomenon in the difference specifically implemented due to test macro or shooting, perspective distortion may be there is and contain irrelevant background image information in above-mentioned second shooting image, can be corrected by perspective distortion makes the coordinate of each point on the second shooting image be transformed to corresponding displaing coordinate, and the coordinate that the scheme that above-mentioned perspective distortion is corrected can comprise second takes each point on image is multiplied by default transformation matrix to obtain corresponding displaing coordinate.It may be irregular quadrilateral that above-mentioned four angle points connect formed closed figure successively, and above-mentioned four angles can be made to be multiplied by default transformation matrix, obtains four and corrects angle point, and it is rectangle that above-mentioned four rectification angle points connect formed closed figure successively; Correct the area-of-interest that rectangle corresponding to angle point is just respective display apparatus for above-mentioned four.Above-mentioned transformation matrix can be arranged by contrast second correcting image taken shown by image and display device.
As an embodiment, the step of the transformation matrix that above-mentioned acquisition is preset can also comprise:
The shooting coordinate of four angle points is obtained from described second shooting image;
Obtain the displaing coordinate of four points corresponding in the correcting image that described four angle points show at display device; Wherein, the above-mentioned second coordinate system taking image used with the correcting image that display device shows is consistent, and the coordinate origin that namely the second shooting image is corresponding respectively with the correcting image that display device shows, the positive dirction of each coordinate axis, unit length are consistent; Owing to there is perspective phenomenon (point photographed is near big and far smaller) in shooting process, so just, may cause certain point displaing coordinate and this o'clock second shooting image in coordinate inconsistent, such as, if the displaing coordinate of certain point is (1,1), after taking accordingly, it takes coordinate just likely for (1.02 in the second shooting image, 0.95), this o'clock takes coordinate in the second shooting image may be also other values due to the impact of the factor such as shooting distance, shooting angle; The dimension of above-mentioned displaing coordinate, shooting coordinate is determined by the attribute of display device;
Preset transformation matrix according to the shooting coordinate of four angle points and the dimension of corresponding displaing coordinate, set up equation according to above-mentioned transformation matrix; Wherein, described equation is the matrix that the Matrix Multiplication be made up of described shooting coordinate equals with described transformation matrix to be made up of described displaing coordinate;
Solve described equation, obtain the value of described transformation matrix.
In the present embodiment, owing to there is perspective phenomenon (point photographed is near big and far smaller) in shooting process, the coordinate that the shooting coordinate of some point may show in the display device with it is inconsistent, above-mentioned shooting coordinate is multiplied by above-mentioned transformation matrix, the coordinate comprised in the matrix obtained just is the value that this displaing coordinate is corresponding.The default transformation matrix of method provided according to the present embodiment can be used in the test macro that display device, capture apparatus, shooting angle and shooting distance remain unchanged, and the shooting coordinate of arbitrfary point is to the conversion of corresponding displaing coordinate.If one or more factor in display device, capture apparatus, shooting angle and shooting distance changes, then need to reset the transformation matrix of its correspondence, to ensure the accuracy of the displaing coordinate that corresponding conversion obtains.
The present embodiment is by sending the entirely white correcting image of color to described display device, take accordingly again, detection etc. operates the area-of-interest obtaining described display device, the image that follow-up test process can directly be shown in above-mentioned area-of-interest for display device carries out, the technical matters that the view data of display device screen edge disturbs it to test can be avoided, ensure that the validity of testing data used, and then improve the accuracy of corresponding test result.
As an embodiment, the above-mentioned test pattern to display is taken, and after obtaining the step of the first shooting image, can also comprise:
Obtain described four respectively and correct angle point coordinate in the display device, obtain the coordinate parameters of described area-of-interest;
Image is taken according to described coordinate parameters cutting first;
According to the first shooting image after cutting, measurement of the display characteristics is carried out to corresponding display device.
In the present embodiment, image is taken in the rectangle parameter cutting first corresponding according to described area-of-interest, and take the first shooting image described in image update according to first after cutting, the rectangle parameter that can above-mentioned area-of-interest be utilized corresponding after image is taken in acquisition first carries out corresponding cutting and renewal, follow-up the first shooting image for this measurement of the display characteristics is made to be view data in above-mentioned area-of-interest, thus the view data interfere with subsequent measurement of the display characteristics of above-mentioned display device screen edge can be avoided, ensure the validity of related data in test process, improve the accuracy of test result.
With reference to figure 2, Figure 2 shows that the measurement of the display characteristics system architecture schematic diagram of an embodiment, comprising:
Receiver module 10, for receiving the test instruction of test display device display performance; Wherein, described test instruction comprises the signalling channel of display device, information source and testing process;
Select module 20, for selecting the signalling channel of display device according to described test instruction, control described display device and obtain test pattern by the information source of described signalling channel from correspondence and show;
Taking module 30, for taking the test pattern of display, obtains the first shooting image;
Test module 40, for carrying out measurement of the display characteristics according to described testing process and described first shooting image to corresponding display device, and exports the test result of described measurement of the display characteristics.
In one embodiment, above-mentioned test module can comprise:
Comparing module, for carrying out pixel comparison by described first shooting image and template image; Wherein, described template image is the original image that described test pattern is corresponding at information source place;
Statistical module, for obtain described first shooting image in each pixel and described template image in the difference of respective pixel point on each color component;
Performance test module, for carrying out measurement of the display characteristics according to described difference to corresponding display device.
Measurement of the display characteristics system of the present invention and measurement of the display characteristics method one_to_one corresponding of the present invention, the technical characteristic of setting forth in the embodiment of above-mentioned measurement of the display characteristics method and beneficial effect thereof are all applicable to, in the embodiment of measurement of the display characteristics system, hereby state.
With reference to figure 3, Figure 3 shows that the measurement of the display characteristics apparatus structure schematic diagram of an embodiment, comprising: server 61, several controllers 62 and several image acquisition equipments 63;
Described controller and image acquisition equipment connect one to one, and each controller connects described server 61 respectively, and each controller connects a display device to be measured respectively;
Described server 61 sends test instruction to described controller; Wherein, described test instruction comprises for display device to be tested selects signalling channel, the information source of test and the instruction of testing process;
Described controller receives described test instruction, selects the signalling channel of display device according to described test instruction, controls described display device and is obtained test pattern by the information source of described signalling channel from correspondence and shown;
Described controller controls the test pattern of corresponding image acquisition equipment to display and takes, obtain the first shooting image, and according to described testing process and described first shooting image, measurement of the display characteristics is carried out to corresponding display device, and export the test result of described measurement of the display characteristics, and the test result of described measurement of the display characteristics is sent to server 61.
Server connects the above-mentioned test result of 61 reception, above-mentioned test result can be carried out storing or be sent to relevant registering apparatus, to record the detecting information of respective display apparatus, for this display device in follow-up production or in safeguarding.
In the present embodiment, above-mentioned server 61 can be connected with several controllers 62 respectively by wired or wireless form, to realize the communication between server 61 and each controller.
Described controller can connect one to one with above-mentioned image acquisition equipment, and above-mentioned controller carries out the acquisition of respective image by the image controlled shown by corresponding image acquisition equipment shooting display device.Above-mentioned image acquisition equipment can take image for industrial camera etc., and has the equipment of higher picture steadiness, high-transmission ability and high anti-jamming capacity.
Each controller above-mentioned is connected respectively a display device, and above-mentioned display device can be arranged on measurement jig, then keeps communicating with corresponding controller by modes such as Ethernet, serial ports or infrared rays.
The measurement of the display characteristics device that above-described embodiment provides, by server is connected each controller respectively, connects one to one each controller above-mentioned and image acquisition equipment, and each controller also connects a display device to be measured respectively; Make above-mentioned server can send test instruction to described controller; Described controller receives described test instruction, selects the signalling channel of display device according to described test instruction, controls described display device and is obtained test pattern by the information source of described signalling channel from correspondence and shown; After described display device shows described test pattern; Above-mentioned controller can control the test pattern of corresponding image acquisition equipment to display and take, obtain the first shooting image, to carry out measurement of the display characteristics according to described first shooting image to corresponding display device, and described test result be sent to server; Above-mentioned server receives above-mentioned test result, above-mentioned test result can be carried out storing or be sent to relevant registering apparatus, to record the detecting information of respective display apparatus, for this display device in follow-up production or in safeguarding.Utilize above-mentioned measurement of the display characteristics device can carry out whole-course automation test to display device, its test process need not rely on and manually carry out, by platform test, improve the testing efficiency of display device.In addition, in upper measurement of the display characteristics device, server can connect multiple controller simultaneously, and each controller can be tested different display devices simultaneously, on the basis ensureing test effect, further increases the efficiency of test display device.
In one embodiment, above-mentioned controller can the first shooting image and template image described in comparison; Obtain described first shooting image in each pixel and described template image in the difference of respective pixel point on each color component; To being normalized of described difference, obtain the normalized value that each pixel is corresponding; Judge whether each normalized value described is all in preset range; If so, then judge that described measurement of the display characteristics passes through; Otherwise judge that described measurement of the display characteristics does not pass through.Wherein, above-mentioned template image is the original image that described test pattern is corresponding at information source place.
In one embodiment, after the test instruction that above-mentioned controller reception server sends, the entirely white correcting image of color can also be sent to described display device; Described display device receives and shows described correcting image; Now, above-mentioned controller can control image acquisition equipment and take described correcting image, obtains the second shooting image, and from described image acquisition equipment, obtain described second shooting image; Corner Detection is carried out to described second shooting image, obtains four angle points of described second shooting image; Obtain four respectively according to described four angle points and default transformation matrix and correct angle point, and correct the area-of-interest of angle point determination display device according to described four; Wherein, described area-of-interest is four rectangular areas of correcting angle point and forming; Obtain test pattern from the information source of correspondence to show at described area-of-interest.
As an embodiment, above-mentioned controller is taken at the test pattern of control image acquisition equipment to display, obtain the first shooting image, and obtain described first shooting image from described image acquisition equipment after, described four can also be obtained respectively and correct angle point coordinate in the display device, obtain the coordinate parameters of described area-of-interest; Image is taken according to described coordinate parameters cutting first; The first shooting image according to the first shooting image update after cutting.
In one embodiment, above-mentioned server can read and load testing process script, and performs the content of described testing process script by booting script engine, sends test instruction to corresponding controller according to the result performed.
In the present embodiment, for display device and the controller that is connected between above-mentioned display device and server of required test, obtain and load corresponding testing process script, booting script engine performs the content of described testing process script, send test instruction to corresponding controller according to the result performed, controller can be tested corresponding display device targetedly according to above-mentioned test instruction.
In one embodiment, above-mentioned server can create control thread corresponding to each controller according to connected controller, each controller receives described test instruction according to the corresponding thread that controls respectively, and the test result that this controller obtains is sent to server.
In the present embodiment, server can be respectively each controller and create corresponding control process, make it can send test instruction by above-mentioned control process to corresponding controller, this controller also can upload test result by the control process of its correspondence to server, like this, carrying out in the process of above-mentioned data interaction at each controller with server, just its independence communicated can be kept, the communication of other controllers and server can not be had influence on, also can not by the Communication Jamming of other controllers, can send to each controller or obtain the accuracy of related data by Deterministic service device.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a measurement of the display characteristics method, is characterized in that, comprises the steps:
Receive the test instruction of test display device display performance; Wherein, described test instruction comprises the signalling channel of display device, information source and testing process;
Select the signalling channel of display device according to described test instruction, control described display device and obtain test pattern by the information source of described signalling channel from correspondence and show;
The test pattern of display is taken, obtains the first shooting image;
According to described testing process and described first shooting image, measurement of the display characteristics is carried out to corresponding display device, and export the test result of described measurement of the display characteristics.
2. measurement of the display characteristics method according to claim 1, it is characterized in that, describedly carry out measurement of the display characteristics according to described testing process and described first shooting image to corresponding display device, and the step exporting the test result of described measurement of the display characteristics comprises:
Described first shooting image and template image are carried out pixel comparison; Wherein, described template image is the original image that described test pattern is corresponding at information source place;
Obtain described first shooting image in each pixel and described template image in the difference of respective pixel point on each color component;
According to described difference, measurement of the display characteristics is carried out to corresponding display device.
3. measurement of the display characteristics method according to claim 2, is characterized in that, describedly comprises the step that corresponding display device carries out measurement of the display characteristics according to described difference:
To being normalized of described difference, obtain the normalized value that each pixel is corresponding;
Judge whether each normalized value described is all in preset range;
If so, then judge that the measurement of the display characteristics of described display device passes through, otherwise do not pass through.
4. measurement of the display characteristics method according to claim 1, is characterized in that, also comprises before the step of the test instruction of described reception test display device display performance:
Send correcting image to described display device to show; Wherein, described correcting image is the entirely white image of color;
Described correcting image is taken, obtains the second shooting image;
Corner Detection is carried out to described second shooting image, obtains four angle points of described second shooting image;
Obtain four respectively according to described four angle points and default transformation matrix and correct angle point, and correct the area-of-interest of angle point determination display device according to described four; Wherein, described area-of-interest is four rectangular areas of correcting angle point and forming;
The described test pattern to display is taken, and the step obtaining the first shooting image comprises:
Described test pattern is shown at described area-of-interest;
The test pattern that described area-of-interest shows is taken, obtains the first shooting image.
5. measurement of the display characteristics method according to claim 4, is characterized in that, the described test pattern to display is taken, and after obtaining the step of the first shooting image, also comprises:
Obtain described four respectively and correct angle point coordinate in the display device, obtain the coordinate parameters of described area-of-interest;
Image is taken according to described coordinate parameters cutting first;
According to the first shooting image after cutting, measurement of the display characteristics is carried out to corresponding display device.
6. a measurement of the display characteristics system, is characterized in that, comprising:
Receiver module, for receiving the test instruction of test display device display performance; Wherein, described test instruction comprises the signalling channel of display device, information source and testing process;
Select module, for selecting the signalling channel of display device according to described test instruction, control described display device and obtain test pattern by the information source of described signalling channel from correspondence and show;
Taking module, for taking the test pattern of display, obtains the first shooting image;
Test module, for carrying out measurement of the display characteristics according to described testing process and described first shooting image to corresponding display device, and exports the test result of described measurement of the display characteristics.
7. measurement of the display characteristics system according to claim 6, is characterized in that, described test module comprises:
Comparing module, for carrying out pixel comparison by described first shooting image and template image; Wherein, described template image is the original image that described test pattern is corresponding at information source place;
Statistical module, for obtain described first shooting image in each pixel and described template image in the difference of respective pixel point on each color component;
Performance test module, for carrying out measurement of the display characteristics according to described difference to corresponding display device.
8. a measurement of the display characteristics device, is characterized in that, comprising: server, several controllers and several image acquisition equipments;
Described controller and image acquisition equipment connect one to one, and each controller connects described server respectively, and each controller connects a display device to be measured respectively;
Described server sends test instruction to described controller; Wherein, described test instruction comprises for display device to be tested selects signalling channel, the information source of test and the instruction of testing process;
Described controller receives described test instruction, selects the signalling channel of display device according to described test instruction, controls described display device and is obtained test pattern by the information source of described signalling channel from correspondence and shown;
Described controller controls the test pattern of corresponding image acquisition equipment to display and takes, obtain the first shooting image, and according to described testing process and described first shooting image, measurement of the display characteristics is carried out to corresponding display device, and export the test result of described measurement of the display characteristics, and the test result of described measurement of the display characteristics is sent to server.
9. measurement of the display characteristics device according to claim 8, it is characterized in that, described server reads and loads testing process script, and performs the content of described testing process script by booting script engine, sends test instruction to corresponding controller according to the result performed.
10. measurement of the display characteristics device according to claim 8, it is characterized in that, described server creates control thread corresponding to each controller according to connected controller, each controller receives described test instruction according to the corresponding thread that controls respectively, and the test result that this controller obtains is sent to server.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105872333A (en) * | 2016-05-03 | 2016-08-17 | 广州视源电子科技股份有限公司 | Method and system for verifying performance of moving image of display device |
| 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 |
| CN107432748A (en) * | 2016-05-27 | 2017-12-05 | 上海西门子医疗器械有限公司 | Flat panel detector test system and flat panel detector method of testing |
| CN107885180A (en) * | 2016-09-30 | 2018-04-06 | 西门子公司 | Test equipment and method of testing |
| CN108243334A (en) * | 2016-12-26 | 2018-07-03 | 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 |
| CN111629205A (en) * | 2020-07-28 | 2020-09-04 | 天津美腾科技股份有限公司 | System and method applied to industrial camera simulation test |
| WO2020253827A1 (en) * | 2019-06-21 | 2020-12-24 | 京东方科技集团股份有限公司 | Method and apparatus for evaluating image acquisition accuracy, and electronic device and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1905725A (en) * | 2006-07-31 | 2007-01-31 | 华为技术有限公司 | System and method for testing speech service |
| CN101398999A (en) * | 2007-09-28 | 2009-04-01 | 鹏智科技(深圳)有限公司 | Display equipment test device and method |
| US20110255843A1 (en) * | 2010-04-20 | 2011-10-20 | Hon Hai Precision Industry Co., Ltd. | Apparatus and method for testing signal channels of dvr |
| CN103024434A (en) * | 2012-12-20 | 2013-04-03 | 广州视源电子科技股份有限公司 | Automatic test system based on image matching |
| CN103037241A (en) * | 2012-12-20 | 2013-04-10 | 广州视源电子科技股份有限公司 | Automatic test system of reproduction ratio |
| CN103151021A (en) * | 2013-02-22 | 2013-06-12 | 广州视源电子科技股份有限公司 | Data display method and test method of display device |
-
2015
- 2015-10-26 CN CN201510708530.6A patent/CN105389809B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1905725A (en) * | 2006-07-31 | 2007-01-31 | 华为技术有限公司 | System and method for testing speech service |
| CN101398999A (en) * | 2007-09-28 | 2009-04-01 | 鹏智科技(深圳)有限公司 | Display equipment test device and method |
| US20110255843A1 (en) * | 2010-04-20 | 2011-10-20 | Hon Hai Precision Industry Co., Ltd. | Apparatus and method for testing signal channels of dvr |
| CN103024434A (en) * | 2012-12-20 | 2013-04-03 | 广州视源电子科技股份有限公司 | Automatic test system based on image matching |
| CN103037241A (en) * | 2012-12-20 | 2013-04-10 | 广州视源电子科技股份有限公司 | Automatic test system of reproduction ratio |
| CN103151021A (en) * | 2013-02-22 | 2013-06-12 | 广州视源电子科技股份有限公司 | Data display method and test method of display device |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105872333A (en) * | 2016-05-03 | 2016-08-17 | 广州视源电子科技股份有限公司 | Method and system for verifying performance of moving image of display device |
| CN107432748A (en) * | 2016-05-27 | 2017-12-05 | 上海西门子医疗器械有限公司 | Flat panel detector test system and flat panel detector method of testing |
| 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 |
| CN107885180A (en) * | 2016-09-30 | 2018-04-06 | 西门子公司 | Test equipment and method of testing |
| 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 |
| CN108243334A (en) * | 2016-12-26 | 2018-07-03 | 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 |
| WO2020253827A1 (en) * | 2019-06-21 | 2020-12-24 | 京东方科技集团股份有限公司 | Method and apparatus for evaluating image acquisition accuracy, and electronic device and storage medium |
| US11314979B2 (en) | 2019-06-21 | 2022-04-26 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Method and apparatus for evaluating image acquisition accuracy, electronic device and storage medium |
| CN111629205A (en) * | 2020-07-28 | 2020-09-04 | 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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