CN107888912A - The abnormal recognition methods of display screen display and system - Google Patents
The abnormal recognition methods of display screen display and system Download PDFInfo
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- CN107888912A CN107888912A CN201711175709.5A CN201711175709A CN107888912A CN 107888912 A CN107888912 A CN 107888912A CN 201711175709 A CN201711175709 A CN 201711175709A CN 107888912 A CN107888912 A CN 107888912A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
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Abstract
The embodiment of the invention discloses a kind of abnormal recognition methods of display screen display and system, this method to include：Based on same video content, at least two display screens of control carry out display output；The display picture of corresponding frame is obtained in the video shown from the display screen；According to the comparative result of the display pictures of at least two corresponding frames, the abnormal show state of the display screen is determined.Solve the problems, such as prior art can not accurately identify display screen show it is abnormal, to improve the abnormal recognition accuracy of display screen display.
Description
Technical field
The present embodiments relate to intelligent testing technology, more particularly to a kind of display screen to show abnormal recognition methods and be
System.
Background technology
With the rapidly development of ultra high-definition TV, people pursue more and more higher to the image display resolution of television set.City
Occur 4K the Definition TVs even display screen of the ultrahigh resolution such as 8K, 10K on field.When resolution ratio more and more higher, to control
The control panel and image transmission rate that display screen processed is shown propose higher requirement.In the exploitation rank of ultra high-definition display screen
Section, as control panel and image transmission rate are more and more faster, the High-frequency Interference thus attracted becomes increasingly spine with radiation problem
Hand.Because transfer impedance, which matches picture display exception caused by incorrect or external interference, becomes very common.These are abnormal past
It is past to occur at random, and the time occurred is very short, flashes across, does not pay attention to somewhat being possible to can't find exception, and
And what rule these pictures typically do not have extremely, one or two minute can of sometimes starting shooting occurs abnormal, it is sometimes necessary to
The even longer time several hours just occurs.Also some displays are abnormal is just occurred in Climatic Effects.Existing detection
Method is exactly to stare at screen always by testing staff in the development phase to check picture exception can or can not occur, it is sometimes desirable to detects people
Member goes inside chamber to go to watch whether TV has exception for a long time, more painful so for testing staff, therefore manually
Detection is wasted time and energy, and does not pay attention to somewhat ignoring that picture abnormal conditions.
In addition, existing computer picture recognition algorithm is higher for the identification accuracy of the obvious object of aspect ratio,
Such as face, the automobile etc. of movement.The identification problem of the condition of instant error shown for display screen regional area, there is presently no than
Preferable detection method.
The content of the invention
The embodiment of the present invention provides a kind of display screen picture abnormality recognition method and system, and solving prior art can not be accurate
Identification display screen shows the problem of abnormal, to improve the abnormal recognition accuracy of display screen display.
In a first aspect, the embodiments of the invention provide a kind of abnormal recognition methods of display screen display, including：
Based on same video content, at least two display screens of control carry out display output；
The display picture of corresponding frame is obtained in the video shown from the display screen；
According to the comparative result of the display pictures of at least two corresponding frames, the abnormal show shape of the display screen is determined
State.
Further, described to be based on same video content, at least two display screens of control carry out display output, including：
At least two display screens are controlled, receive and show the video that same player is exported.
Further, it is described from the shown display picture for obtaining corresponding frame in display screen frequency depending on stating, including：
Based on preset sample frequency, obtained by CCD (Charge-coupled Device, abbreviation CCD) each described aobvious
The display picture for each frame video that display screen is played.
Further, the display picture that each frame video that each display screen is played is obtained by CCD, bag
Include：
The frame synchronizing signal that the player exports is received by synchronous circuit, and according to the frame synchronizing signal to collection
The CCD output collection signals of each display screen display picture, the CCD correspond to display screen according to the collection signal acquisition
Display picture.
Further, the comparative result of the display picture according at least two corresponding frames, determines the display screen
Abnormal show state, including：
Obtain the gray scale difference value image that two display screens being compared to each other correspond to the display picture of frame；
When the gray scale difference value image has the pixel more than presetted pixel gray value, then judge at least one described aobvious
Display screen display is abnormal.
Further, then judge when the gray scale difference value image has the pixel for being more than presetted pixel gray value described
Before at least one display screen shows exception, in addition to：
Obtain the gray scale difference value image of the test pictures of two be compared to each other the display screen output；
The grey scale pixel value average of all gray scale difference value images is asked for, and is determined based on the grey scale pixel value average
Presetted pixel gray value.
Further, the test pictures are pure color picture.
Further, the display screen is display screen to be measured；Or
The display screen includes a qualified display screen, and the qualified display screen is the comparison other of the display screen to be measured.
Further, when the display screen is display screen to be measured, and two displays for judging to be compared to each other according to comparative result
When at least one presence in screen shows abnormal；
By two display screen respectively compared with other display screens, two secondary comparative results are obtained；
The abnormal display screen of display is determined according to the secondary comparative result.
Second aspect, the embodiment of the present invention additionally provide a kind of abnormal identifying system of display screen display, including：
Player, the player are used to export video to display screen；
CCD, the CCD are used to obtain the display picture that corresponding display screen plays video；
DSP (Digital Signal Processing, abbreviation DSP), the DSP are used for according at least two corresponding frames
The display picture comparative result, determine the abnormal show state of display screen.
Further, the display screen being compared to each other receives and shows the video of the same player output.
Further, in addition to synchronous circuit；
The synchronous circuit receives the frame synchronizing signal of the player output, and according to the frame synchronizing signal, Xiang Cai
The CCD output collection signals of each display screen display picture of collection.
Further, the DSP obtains the gray scale difference value that two display screens being compared to each other correspond to the display picture of frame
Image；
When the gray scale difference value image has the pixel more than presetted pixel gray value, then judge at least one described aobvious
Display screen display is abnormal.
The technical scheme of the abnormal recognition methods of display screen display provided in an embodiment of the present invention, the display of control at least two
Screen exports same video content, the same video exported by the display screen for judging to be compared to each other correspond to frame display picture whether
It is identical, to judge whether display screen shows exception, the abnormal randomness of display screen display is made full use of, i.e. synchronization two shows
It is small probability event that display screen occurs abnormal in same position, improves the abnormal recognition accuracy of display screen display and efficiency, and
Also reduce the cost that display screen shows abnormality detection.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing does one and simply introduced, it should be apparent that, drawings in the following description are some embodiments of the present invention, for this
For the those of ordinary skill of field, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other
Accompanying drawing.
Fig. 1 is the flow chart of the recognition methods for the display screen display exception that the embodiment of the present invention one provides；
Fig. 2 is the flow that the abnormal method of display screen is judged based on gray scale difference value image that the embodiment of the present invention one provides
Figure；
Fig. 3 is the gray-scale map for the display picture that the embodiment of the present invention one provides；
Fig. 4 is the gray-scale map for the display picture that the embodiment of the present invention one provides；
Fig. 5 is the gray scale difference value image for the display picture that the embodiment of the present invention one provides；
Fig. 6 is the flow chart for the presetted pixel gray value method to set up that the embodiment of the present invention one provides；
Fig. 7 is the structured flowchart of the identifying system for the display screen display exception that the embodiment of the present invention two provides.
Icon：
10- display screens；11- players；12- synchronous circuits；13-CCD；14-DSP.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, hereinafter with reference to attached in the embodiment of the present invention
Figure, technical scheme is clearly and completely described by embodiment, it is clear that described embodiment is the present invention one
Section Example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out under the premise of creative work the every other embodiment obtained, belong to the scope of protection of the invention.
Under normal circumstances, the display of display screen refers to picture shown by display screen and the video content played not extremely
Symbol, main reason is that display screen is in the course of the work, there is flicker exception in partial pixel, so can not be exactly by video
Appearance is shown.In order to improve the quality of display screen, before display screen dispatches from the factory, strict test and maintenance are carried out to it, but
The abnormal appearance of display has randomness, and the time is very short, under normal circumstances only 100-500ms, and artificial detection is time-consuming to take
Power, and easy missing inspection.The embodiment of the present invention shows abnormal recognition methods and system to identify display screen by display screen
Display is abnormal, shows that abnormal recognition methods describes in detail to display screen first.
Embodiment one
Fig. 1 is the flow chart of the recognition methods for the display screen display exception that the embodiment of the present invention one provides.The present embodiment
Technical scheme is applied to test display screen with the presence or absence of the abnormal situation of display.This method can be by provided in an embodiment of the present invention
Display screen shows abnormal identifying system to perform.
As shown in figure 1, the recognition methods of the display screen display exception described in the present embodiment specifically comprises the following steps：
S11, based on same video content, at least two display screens of control carry out display output.
As shown in fig. 7, because the display of display screen 10 has randomness extremely, the present embodiment controls at least two display screens
The 10 same video contents of output, it is intended to play same video by different display screens 10, show to detect the randomness of display screen 10
Show exception.
Alternatively, for the ease of the comparison of display picture, the display screen 10 in the present embodiment connects with same player 11
Connect, on the premise of same video content is ensured, ensure that the synchronism of the display picture of display screen 10, facilitate pair of display picture
Than.HDMI (High Definition Multimedia Interface, abbreviation can be used in player 11 in this implementation
HDMI) player.
The display picture of corresponding frame is obtained in S12, the video shown from display screen.
It is chance event because the display of display screen 10 is abnormal, so two in running order display screens 10, same
The possibility that occurs flashing almost does not have one screen area simultaneously, so the present embodiment identical regards from what different display screens 10 were shown
The display picture that corresponding frame is extracted in frequency is contrasted.Corresponding frame refers to image content identical frame, i.e., when all display screens
10 normal display when, the display picture of corresponding frame is identical.
Alternatively, the time flashed extremely due to display screen 10 is shorter, to improve display screen 10 and show abnormality detection
Accuracy rate, the time interval for the display picture extracted is the smaller the better, so the present embodiment shoots corresponding display by CCD 13
Each frame video content of the output of screen 10.
Alternatively, in order to improve the identification of frame of video, the present embodiment receives what player 11 exported by synchronous circuit 12
Frame synchronizing signal, and signal, CCD are gathered to the CCD13 outputs for gathering each display picture of display screen 10 according to frame synchronizing signal
13 correspond to the display picture of display screen 10 according to collection signal acquisition.The preset sample frequency of collection signal is more than or equal to frame frequency
Twice, to prevent the aliasing of different video two field picture, and then increase the difficulty for obtaining identical display picture.
S13, the comparative result according at least two display pictures for corresponding to frames, determine the abnormal show shape of display screen 10
State.
Alternatively, the present embodiment is analyzed the display picture of corresponding frame by DSP 14, according at least two correspondences
The comparative result of the display picture of frame, determine the abnormal show state of display screen 10, and the analysis result that output abnormality is shown.
Alternatively, display screen 10 includes display screen to be measured and qualified display screen, and the display picture of qualified display screen is distinguished
Compared with the display picture of each display screen to be measured, if comparative result is normal, display screen to be measured is normal, if comparing knot
Fruit is abnormal, then display screen to be measured is abnormal.
Alternatively, display screen 10 is display screen to be measured, when the comparative result for two display screens being compared to each other is normal, then
The two display screens to be measured are normal, and when comparative result exception, then at least one display screen is abnormal, now can be by two display screens
Respectively compared with other display screens, two secondary comparative results are obtained；Display exception is determined according to secondary comparative result
Display screen.Because the abnormal show of display screen has randomness, typically by secondary comparative result can locating and displaying it is abnormal
Display screen and its abnormal area.It is understood that corresponding to the contrast of frame display picture by multi-display, single display is eliminated
When screen is frame by frame or interframe is analyzed, flicker exception exists in the adjacent a few frame display pictures of single display screen shows the problem of abnormal；
In addition, only analyzing the display picture of single display screen, if display picture is complex or is approached with point of scintillation, point of scintillation is known
Other difficulty is larger, if test pictures are relatively simple, can not test display screen in the case of high speed dynamic refresh with the presence or absence of aobvious
Show exception.
It is exemplary, line label is entered to display screen, and comparative group is determined according to label, such as, No. 1 display screen and No. 2 it is aobvious
Display screen compares the display picture of No. 1 display screen and No. 2 display screens as a comparative group, if the comparative result of the two is normal,
No. 1 display screen and No. 2 display screens are normal, if comparative result is abnormal, No. 1 display screen and No. 2 at least one exceptions of display screen,
In order to accurately determine the display of which display screen exception, by No. 1 display screen compared with tail number display screen, one is obtained
Secondary comparative result, if the secondary comparative result is normal, No. 1 display screen is normal with tail number display screen, now can determine that No. 2
Display screen is abnormal, if the secondary comparative result is abnormal, needs to judge the secondary comparative result of No. 2 display screens and No. 3 display screens
Whether abnormal, if the secondary comparative result is normal, No. 2 display screens and No. 3 display screens are normal, then can determine that No. 1 display screen is different
Often, if the secondary comparative result is abnormal, i.e., when two secondary comparative results are abnormal, then need to compare No. 3 display screens and No. 4 aobvious
Display screen, or the comparative result three times of tail number display screen and-No. 1 display screen of tail number, judge that tail number is shown according to comparative result three times
Whether screen and No. 3 display screens show exception, then judge No. 1 display according to the result of determination of tail number display screen and No. 3 display screens
Whether screen and No. 2 display screens show exception.In other words until finding the normal n comparative result of comparative result, according to n times relatively
As a result judge that two display screens that participation is compared are normal, push away counter forward accordingly.Alternatively, although display screen display extremely be with
Machine event, while there is abnormal possibility very little, but in order to improve its accuracy rate, may be incorporated into anomaly area position and shape
The identification of shape, if the comparative result of No. 1 display screen and No. 2 display screens is abnormal, while two secondary comparative results and two are three times
Comparative result is also abnormal, now can by the abnormal display screen label of the identification locating and displaying of anomaly area location and shape with
Out-of-the way position.
Alternatively, the present embodiment judges whether display screen 10 is abnormal by gray scale difference value image, as shown in Fig. 2 based on ash
Degree error image judges that the abnormal method of display screen includes：
Two display screens that S1301, acquisition are compared to each other correspond to the gray scale difference value image of the display picture of frame.
The gray level image of the display picture of two display screen 10 is first asked for, as shown in Figure 3 and Figure 4；Then two gray level images are asked for
Grey scale pixel value difference absolute value, as shown in figure 5, as gray scale difference value image.
S1302, when gray scale difference value image exist more than presetted pixel gray value pixel when, then judge at least one display
Screen display is abnormal.
Alternatively, although all display screen 10 exports identical video content, due to the influence of environmental factor, than
Such as influence of the light factor of the local environment of display screen 10, make the display picture of display screen 10 just the same, but compare
Compared with two display screens 10 between gray scale difference value image grey scale pixel value it is often more stable, a presetted pixel can be set accordingly
Gray value, make two display screens 10 that are compared to each other normal, and when display picture is identical video content, the gray scale difference of the two
The grey scale pixel value of value image is less than presetted pixel gray value, once when the grey scale pixel value of the gray scale difference value image of the two is more than
During presetted pixel gray value, then the display of at least one display screen 10 is abnormal in two display screens 10.As shown in figure 5, Fig. 5 upper right side
There is the strip region that grey scale pixel value is higher than other regions, when the region is higher than presetted pixel gray value, then at least one is aobvious
Display screen 10 shows exception.
Alternatively, as shown in fig. 6, the presetted pixel gray value method to set up of the present embodiment includes：
The gray scale difference value image of the test pictures for two display screens output that S1311, acquisition are compared to each other.
In order to improve the acquisition speed of presetted pixel gray value and accuracy rate, by two display screens 10 being compared to each other,
The gray scale difference value image of the test pictures of output obtains presetted pixel gray value, and the test pictures of the present embodiment are that pure color is drawn
Face, such as white screen.
S1312, the grey scale pixel value average for asking for all gray scale difference value images, and determined in advance based on grey scale pixel value average
If grey scale pixel value.
In order to improve the accuracy of grey scale pixel value, this implementation is first obtained in certain period of time, and two be compared to each other are aobvious
The gray scale difference value image of the test pictures of display screen 10, the grey scale pixel value for then asking for gray scale difference value image in the period are equal
Value, using the grey scale pixel value average as presetted pixel gray value.
The technical scheme of the abnormal recognition methods of display screen display provided in an embodiment of the present invention, the display of control at least two
Screen exports same video content, the same video exported by the display screen for judging to be compared to each other correspond to frame display picture whether
It is identical, to judge whether display screen shows exception, the abnormal randomness of display screen display is made full use of, i.e. synchronization two shows
It is small probability event that display screen occurs abnormal in same position, improves accuracy rate and efficiency that display screen shows anomalous identification, simultaneously
Also reduce the cost that display screen shows abnormality detection.
Embodiment two
Fig. 7 is the structured flowchart for the display screen picture anomalous identification system that the embodiment of the present invention two provides.The system application
In the identification that display screen display is abnormal.As shown in fig. 7, the system includes：Player 11, CCD 13 and DSP 14, player 11
For exporting video to display screen 10；CCD 13 is used to obtain the display picture that corresponding display screen 10 plays video；DSP 14
For the comparative result of the display picture according at least two corresponding frames, the abnormal show state of display screen 10 is determined.
Because the display of display screen 10 has randomness extremely, it is same that the present embodiment controls at least two display screens 10 to export
Video content, it is intended to same video is played by different display screens 10, to find that the display of the randomness of display screen 10 is abnormal.
Alternatively, for the ease of the comparison of display picture, the display screen 10 in the present embodiment connects with same player 11
Connect, on the premise of same video content is ensured, ensure that the synchronism of the display picture of display screen 10, facilitate pair of display picture
Than.HDMI players can be used in player 11 in this implementation.
It is chance event because the display of display screen 10 is abnormal, so two in running order display screens 10, same
The possibility that one screen area occurs flashing simultaneously does not almost have, therefore, the video that the present embodiment is shown from different display screens 10
The display picture of the middle corresponding frame of extraction is contrasted.Corresponding frame refers to image content identical frame, i.e., when all display screens 10
When normally showing, the display picture of corresponding frame is identical.
Alternatively, the time flashed extremely due to display screen 10 is shorter, to improve display screen 10 and show abnormality detection
Accuracy rate, the time interval for the display picture extracted are the smaller the better.The present embodiment is defeated by the corresponding display screen 10 of CCD13 shootings
The each frame video content gone out.
Alternatively, in order to improve the identification of frame of video, the present embodiment receives what player 11 exported by synchronous circuit 12
Frame synchronizing signal, and signal, CCD are gathered to the CCD13 outputs for gathering each display picture of display screen 10 according to frame synchronizing signal
13 correspond to the display picture of display screen 10 according to collection signal acquisition.The preset sample frequency of collection signal is more than or equal to frame frequency
Twice, to prevent the aliasing of different video two field picture, and then increase the difficulty for obtaining identical display picture.
Alternatively, the present embodiment is analyzed the display picture of corresponding frame by DSP 14, according at least two correspondences
The comparative result of the display picture of frame, determine the abnormal show state of display screen 10, and the analysis result that output abnormality is shown.
Alternatively, display screen 10 includes display screen to be measured and qualified display screen, and the display picture of qualified display screen is distinguished
Compared with the display picture of each display screen to be measured, if comparative result is normal, display screen to be measured is normal, if comparing knot
Fruit is abnormal, then display screen to be measured is abnormal.
Alternatively, display screen 10 is display screen to be measured, when the comparative result for two display screens being compared to each other is normal, then
The two display screens to be measured are normal, and when comparative result exception, then at least one display screen 10 is abnormal, now can be by two displays
Screen compared with other display screens, obtains two secondary comparative results respectively；Determine that display is abnormal according to secondary comparative result
Display screen., typically can locating and displaying exception by secondary comparative result because the abnormal show of display screen has randomness
Display screen and its abnormal area.
The technical scheme of the abnormal identifying system of display screen display provided in an embodiment of the present invention, the display of control at least two
Screen exports same video content, the same video exported by the display screen for judging to be compared to each other correspond to frame display picture whether
It is identical, to judge whether display screen shows exception, the abnormal randomness of display screen display is made full use of, i.e. synchronization two shows
It is small probability event that display screen occurs abnormal in same position, improves the abnormal recognition accuracy of display screen display and efficiency, and
Also reduce the cost that display screen shows abnormality detection.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (13)
- A kind of 1. abnormal recognition methods of display screen display, it is characterised in that including：Based on same video content, at least two display screens of control carry out display output；The display picture of corresponding frame is obtained in the video shown from the display screen；According to the comparative result of the display pictures of at least two corresponding frames, the abnormal show state of the display screen is determined.
- 2. according to the method for claim 1, it is characterised in that described to be based on same video content, control at least two is aobvious Display screen carries out display output, including：At least two display screens are controlled, receive and show the video that same player is exported.
- 3. according to the method for claim 2, it is characterised in that obtained in the video shown from the display screen corresponding The display picture of frame, including：Based on preset sample frequency, the display picture of each frame video played by each display screen of CCD acquisitions.
- 4. according to the method for claim 3, it is characterised in that described to be played by each display screen of CCD acquisitions Each frame video display picture, including：The frame synchronizing signal of the player output is received by synchronous circuit, and it is each to collection according to the frame synchronizing signal The CCD output collection signals of the display screen display picture, the CCD correspond to the aobvious of display screen according to the collection signal acquisition Show picture.
- 5. the method according to claim 3 or 4, it is characterised in that the display according at least two corresponding frames The comparative result of picture, the abnormal show state of the display screen is determined, including：Obtain the gray scale difference value image that two display screens being compared to each other correspond to the display picture of frame；When the gray scale difference value image has the pixel more than presetted pixel gray value, then at least one display screen is judged Display is abnormal.
- 6. according to the method for claim 5, it is characterised in that preset described when the gray scale difference value image exists to be more than During the pixel of grey scale pixel value, then before judging that at least one display screen shows exception, in addition to：Obtain the gray scale difference value image of the test pictures of two be compared to each other the display screen output；The grey scale pixel value average of all gray scale difference value images is asked for, and determines to preset based on the grey scale pixel value average Grey scale pixel value.
- 7. according to the method for claim 6, it is characterised in that the test pictures are pure color picture.
- 8. according to the method for claim 1, it is characterised in that the display screen is display screen to be measured；OrThe display screen includes a qualified display screen, and the qualified display screen is the comparison other of the display screen to be measured.
- 9. according to the method for claim 8, it is characterised in that when the display screen is display screen to be measured, and according to than When at least one presence in two display screens being compared to each other compared with result judgement shows abnormal；By two display screen respectively compared with other display screens, two secondary comparative results are obtained；The abnormal display screen of display is determined according to the secondary comparative result.
- A kind of 10. abnormal identifying system of display screen display, it is characterised in that including：Player, the player are used to export video to display screen；CCD, the CCD are used to obtain the display picture that corresponding display screen plays video；DSP, the DSP are used for the comparative result of the display picture according at least two corresponding frames, determine the different of display screen Normal dispaly state.
- 11. system according to claim 10, it is characterised in that the display screen being compared to each other is received and shown same The video of the player output.
- 12. the system according to claim 10 or 11, it is characterised in that also including synchronous circuit；The synchronous circuit receives the frame synchronizing signal of the player output, and according to the frame synchronizing signal, it is every to collection The CCD output collection signals of the individual display screen display picture.
- 13. system according to claim 12, it is characterised in that the DSP obtains two displays being compared to each other The gray scale difference value image of the display picture of the corresponding frame of screen；When the gray scale difference value image has the pixel more than presetted pixel gray value, then at least one display screen is judged Display is abnormal.
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| CN109286829A (en) * | 2018-09-10 | 2019-01-29 | 杭州联驱科技有限公司 | Display screen play system, display screen examination device and inspection method |
| CN110020588A (en) * | 2019-01-28 | 2019-07-16 | 深圳市睿智物联科技有限公司 | A kind of building screen lamps and lanterns monitoring method and system based on video identification |
| CN111131780A (en) * | 2019-12-26 | 2020-05-08 | 深圳市华智有为科技有限公司 | Video playing system and management method thereof, and intelligent pole management system |
| CN111858214A (en) * | 2020-07-20 | 2020-10-30 | 广东小天才科技有限公司 | Display abnormity detection method and device and electronic equipment |
| CN112464936A (en) * | 2020-12-11 | 2021-03-09 | 合肥维信诺科技有限公司 | Positioning method and positioning device for abnormal display area of display module |
| CN113362270A (en) * | 2020-03-05 | 2021-09-07 | 西安诺瓦星云科技股份有限公司 | Method and device for monitoring abnormal display of display screen picture |
| CN113542735A (en) * | 2021-07-07 | 2021-10-22 | 深圳创维－Rgb电子有限公司 | Television detection method, device, equipment and storage medium |
| CN113676722A (en) * | 2021-07-21 | 2021-11-19 | 南京巨鲨显示科技有限公司 | Video equipment image frame testing method and time delay measuring method |
| CN115082400A (en) * | 2022-06-21 | 2022-09-20 | 北京字跳网络技术有限公司 | Image processing method and device, computer equipment and readable storage medium |
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| CN111858214A (en) * | 2020-07-20 | 2020-10-30 | 广东小天才科技有限公司 | Display abnormity detection method and device and electronic equipment |
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