CN102065318B - System and method for detecting frame loss and image split of digital video system - Google Patents
System and method for detecting frame loss and image split of digital video system Download PDFInfo
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- CN102065318B CN102065318B CN201010618642A CN201010618642A CN102065318B CN 102065318 B CN102065318 B CN 102065318B CN 201010618642 A CN201010618642 A CN 201010618642A CN 201010618642 A CN201010618642 A CN 201010618642A CN 102065318 B CN102065318 B CN 102065318B
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Abstract
The invention relates to a system and method for detecting frame loss and image split of a digital video system. The system comprises a signal generation device with a test sequence generator for generating an original test sequence, wherein the signal generation device is provided with an output interface for outputting the original test sequence; the output interface is connected with a detected digital video system; a signal receiver is provided with an input interface which is connected with the output interface of the detected digital video system to receive the processed test sequence; the signal receiver is provided with a frame loss detector and an image split detector, wherein the frame loss detector detects frame loss by utilizing the processed test sequence; and the image split detector is used for detecting the image split by utilizing the processed test sequence. The original test sequence and a zooming test sequence are accurately compared and measured to determine the quality of the tested video system by the dedicated original test sequence via the tested video system, thereby solving the problem that the video image cannot be found by eyes in the prior art, and bringing more scientific and reasonable quality inspection for the video system.
Description
Technical field
The present invention relates to a kind of system and method that picture is split in the Digital Video System frame losing that detects; Being a kind of system and method that uses digital signal detection computer digit video image acquisition, editor, broadcast system running quality, is the system and method for a kind of detection computations machine Digital Video System to image-capable.
Background technology
The making of TV programme needs stable video/audio signal source; When the long-play, because himself problems such as stability of system, frame data fail in time to arrive receiving equipment as the video broadcast system of signal source; Caused the loss of video information, this phenomenon is called frame losing.Not only frame losing can appear in the video broadcast system of signal, and the acceptance system of video acquisition system such as TV programme possibly produce frame losing equally when gathering video data.Often need be in these Digital Video System work to processing such as video data carry out that convergent-divergent, encoding and decoding (compression or decompression) or special efficacy are played up; And this generic operation mostly compares time-consuming and computer hardware resource; If CPU can't accomplish in a frame time special efficacy of a width of cloth picture is played up, cause processing not real-time, handle the situation that back one frame covering former frame image just may not occur in real time as a frame so; Perhaps because the problem of Digital Video System own; Cause image several row that squinted in the horizontal direction, perhaps the dislocation of image takes place in the zone of certain in the picture, and these all are regarded as and split picture.
Frame losing occurring is that the quality of Digital Video System itself determines therefore, whether can produce frame losing and split similarly is two important indicators of check digit video system performance with splitting the picture generation.At present, check frame losing, split the main detection of leaning on manual work of picture, in real work, observe the variation of picture quality by naked eyes.And Digital Video System is in when work, and frame losing often is difficult in the very first time again and comes to light, and exigent work is difficult to tolerate to program quality for this.It also is very difficult splitting picture by perusal, must keep a close watch on the plane and watch, and in the time of nictation, possibly just miss a frame and split picture.Loss is very high.Therefore, need a kind of method of testing that can detect the Digital Video System frame losing automatically, split picture.
Summary of the invention
In order to overcome prior art problems, the present invention proposes a kind of system and method that picture is split in the Digital Video System frame losing that detects.Described system is that signal generating system is connected with measured number video system and receiving system successively.Described method is connected with the measured number video system through the special-purpose detection system of a cover, with special-purpose detection signal the measured number video system is detected, and detects the measured number video system automatically and frame losing whether occurs, split picture.
The objective of the invention is to realize like this: a kind ofly detect the system that picture is split in the Digital Video System frame losing; Comprise: the signal generation apparatus that has the cycle tests maker that produces original cycle tests; Described signal generation apparatus has the output interface of an original cycle tests of output; Output interface is connected with the measured number video system, and described signal receiving device has an input interface, is connected the cycle tests that receives after handling with the output interface of measured number video system; Be provided with frame losing detector that cycle tests after utilize handling detects frame losing in the described signal receiving device, utilize cycle tests after handling to detect to split picture splitting the picture detector;
The step that described cycle tests maker generates original cycle tests is following:
One two field picture is equally divided into N rectangular strip zone in the horizontal direction, and N is a positive integer, and N is more than or equal to 4;
Any a kind of color filling except that black and white is used in the rectangular strip zone of the leftmost side, and as detecting origin identification, the rectangular strip zone of the rightmost side uses the color identical with the leftmost side to fill, and finishes to identify as detecting;
Rectangular strip zone between origin identification and end sign is effective surveyed area; Each rectangular strip zone in effective surveyed area is filled with black or white respectively; Black represents 1, and white represents 0, and chequered with black and white effective surveyed area forms a frame 2 carry system code images;
The rectangular strip zone of the 0th frame all is made as informal voucher, is defined as image code 0,
The first rectangular strip zone of first frame is made as secret note, and other are informal voucher, are defined as image code 1,
The second rectangular strip zone of second frame is made as secret note, and other are informal voucher, are defined as image code 10,
First and second rectangular strip zone of the 3rd frame is made as secret note, and other are informal voucher, are defined as image code 11,
The 3rd rectangular strip zone of the 4th frame is made as secret note, and other are informal voucher, are defined as image code 100,
The rest may be inferred by analogy, until 2
N-2
-1 two field picture defines 2 carry system codes of each two field picture;
With above-mentioned 2
N-2
-1 two field picture is linked in sequence and forms original cycle tests;
The step that said frame losing detector detects frame losing is following:
The cycle tests decoder is interpreted as 2 carry system codes according to the definition of 2 carry system code images with the black and white bar in effective surveyed area of each two field picture in original cycle tests or the convergent-divergent cycle tests;
Monitoring the numerical difference between of 2 carry system codes of original cycle tests or any two successive frames of convergent-divergent cycle tests, if be 1, perhaps is 1-2
N-2
, then there is not frame losing, if then showing, other differences have frame losing, difference to be the frame losing number;
Saidly split that to detect the step split picture as detector following:
Each symmetrical position, rectangular strip zone of effective surveyed area of the cycle tests after processing, a plurality of test points of selection from top to bottom;
The contrast rectangular strip separately in the zone brightness value Y of test point whether identical, if " being " then do not split picture, if " denying " the picture of splitting arranged.
The method of picture is split in a kind of detection Digital Video System frame losing of using said system, and the step of said method is following:
Generate the step of original cycle tests: be used for producing original cycle tests at the cycle tests maker of signal generation apparatus;
Send the step of original cycle tests: be used for signal generation apparatus original cycle tests is sent to measured number video system and signal receiving device;
Original cycle tests is handled the step of operation: be used for original cycle tests and be sent to the measured number video system; In the measured number video system, handle operation; Produce the cycle tests after handling, and cycle tests output place after will handling is to signal receiving device;
The step that receives: be used for the cycle tests after signal receiving device receives the processing that the measured number video system sends;
The step that detects: be used for signal receiving device the cycle tests after handling is carried out frame losing, splits the picture detection:
Splitting picture detects: the cycle tests after the processing gets into to split and detects each two field picture as tester and whether split picture, if " deny " then continue to detect the next frame image, and constantly circulation, if " being " then will split picture frame and carry out mark, and entering " recorded steps ";
Frame losing detects: the cycle tests after the processing gets into and detects whether frame losing in the frame losing detector, if " deny " then continue to detect next sequence, if " being " then the frame losing sequence is carried out mark, and entering " recorded steps ";
Recorded steps: be used for handling the frame losing of back cycle tests and splitting picture according to label record;
The beneficial effect that the present invention produces is: the present invention passes through special-purpose original cycle tests through tested video system; To the quality of the cycle tests accurate Calculation after handling with definite tested video system; Overcome the problem of the video image that prior art with the naked eye can not find; Make the quality inspection of video system more scientific and reasonable, find and remedy the defective that the measured number video system possibly exist in advance, evade the potential risk that frame losing occurs, split picture in advance in the detection link.In the detection that system and method complexity according to the invention is low, can be applicable to various processing system for video; In servicely do not need manual intervention, the measured number video system has frame losing or splits picture that system according to the invention can in time find and write down relevant error message when producing.The detection efficiency to Digital Video System that improves has greatly simultaneously reduced cost.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is the principle schematic of embodiments of the invention one said system;
Fig. 2 is the flow chart of embodiments of the invention two said methods;
Fig. 3 is that the cycle tests of the video image of embodiments of the invention three said methods is divided;
Fig. 4 is 2 carry system code images of embodiments of the invention three said methods;
Fig. 5 is that 2 carry system code images of embodiments of the invention three said methods generate metric cataloged procedure;
Fig. 6 is that the test point of embodiments of the invention four said methods is selected sketch map;
Fig. 7 splits the picture sketch map;
Fig. 8 is that the test point of embodiments of the invention five said methods is selected sketch map;
Fig. 9 is the cycle tests decoding sketch map of embodiments of the invention five said methods.
Embodiment
Embodiment one:
Present embodiment is a kind of system that picture is split in the Digital Video System frame losing that detects, and is as shown in Figure 1.Present embodiment comprises: the signal generation apparatus that has the cycle tests maker that produces original cycle tests; Described signal generation apparatus has the output interface of an original cycle tests of output; Output interface is connected with the measured number video system; Described signal receiving device has an input interface, is connected the cycle tests that receives after handling with the output interface of measured number video system; Be provided with frame losing detector that cycle tests after utilize handling detects frame losing in the described signal receiving device, utilize cycle tests after handling to detect to split picture splitting the picture detector.
Described signal receiving device of present embodiment and signal generation apparatus can be that software also can be hardware.If software then signal generation apparatus and signal receiving device can operate in respectively in common PC or the server, as long as suitable interface is arranged, even may operate in a PC or the server.If hardware then can special signal generation apparatus and signal receiving device, or design special both can transmitting, also can receive the device of signal.Perhaps adding hardware mode through software realizes.Therefore no matter be that hardware or software can be realized such detection system.
The said system of present embodiment comprises two devices, four modules: signal generation apparatus, signal receiving device, cycle tests maker, frame losing detector, split the picture detector.
Signal generation apparatus utilizes the cycle tests maker to produce test signal, and test signal is through being received by signal receiving device behind the Digital Video System to be measured, and cycle tests sends the frame losing detector respectively to and splits the picture detector after the processing after the reception.The frame losing detector carries out frame losing and detects, and splits the detection of splitting picture as detector, and the frame losing detector is with to split the picture detector separate.
Stability to adopt the said structure model to detect the digital video system of a cover is example.Need use two equipment: a stable signal broadcast system (having signal generation apparatus) and a stable signal acquiring system (having signal receiving device), this two cover system by look audio frequency I/O card and corresponding driving, application program constitutes.The cycle tests maker is arranged in the signal broadcast system as signal source, and signal receiving device then is arranged in signal acquiring system.The signal broadcast system outputs signal to Digital Video System to be measured, and the output of Digital Video System to be measured then connects the input I/O interface of acquisition system, like Fig. 1.A cover system of building like this can be used for detecting the stability of Digital Video System to be measured.
Embodiment two:
Present embodiment is to use the detection Digital Video System frame losing of embodiment one said system to split the method for picture, and Fig. 2 is the flow chart of this enforcement.The step of the said method of present embodiment is following:
Generate the step of original cycle tests: be used for producing original cycle tests at the cycle tests maker of signal generation apparatus.Cycle tests is very important, has determined the method for test, the generation of cycle tests.
Send the step of original cycle tests: be used for signal generation apparatus original cycle tests is sent to measured number video system and signal receiving device.
Original cycle tests is processed the step of operation: be used for original cycle tests and be sent to the measured number video system; In the measured number video system, carry out Video processing; Produce the cycle tests after handling, and cycle tests output place after will handling is to signal receiving device.This measured number video system can be handled video data, and processing mode can be Code And Decode, image zoom etc., and the system of every change original video data stream all can use this method to test.
The step that receives: be used for the cycle tests after signal receiving device receives the processing that the measured number video system sends.
The step that detects: be used for signal receiving device and respectively original cycle tests and convergent-divergent cycle tests carried out frame losing, split the picture detection:
Splitting picture detects: original cycle tests with the convergent-divergent cycle tests entering split and detect each two field picture as tester and whether split picture; If " deny " then continuation detection next frame image; And constantly circulation, if " being " then will split picture frame and carry out mark, and get into " recorded steps ".
Frame losing detects: the cycle tests after the processing gets into and detects whether frame losing in the frame losing detector, if " deny " then continue to detect next sequence, if " being " then the frame losing sequence is carried out mark, and entering " recorded steps ".
Frame losing and the detection of splitting picture can be carried out simultaneously, also can split the order that frame losing is detected in the picture back according to detecting earlier, generally video if split picture then the detection quality of frame losing can't guarantee.
Recorded steps: the cycle tests frame losing after being used for handling and split picture according to label record.Recorded content can comprise frame losing or split the time of picture, which frame in processing procedure, lose, which frame has splits picture and take place or the like.
Embodiment three:
Present embodiment is the improvement of embodiment two, is the refinement of embodiment two about original test series.The method that the described original cycle tests of present embodiment constitutes is following:
One two field picture is equally divided into N rectangular strip zone in the horizontal direction, and N is a positive integer, and N is more than or equal to 4.The span of N is because except two of right ends played the rectangular area of sign effect, the centre should have at least two rectangular strip zones just can detect.The rectangular strip zone of the leftmost side uses any color except black or white to fill, and as detecting origin identification, the rectangular strip zone of the rightmost side uses the color identical with the leftmost side to fill, and finishes sign as detecting.
Rectangular strip zone between origin identification and end sign is effective surveyed area; Each rectangular strip zone in effective surveyed area is filled with black or white respectively; Black represents 1, and white represents 0, and chequered with black and white effective surveyed area forms a frame 2 carry system code images.
The rectangular strip zone of the 0th frame all is made as informal voucher, is defined as image code 0,
The first rectangular strip zone of first frame is made as secret note, and other are informal voucher, are defined as image code 1,
The second rectangular strip zone of second frame is made as secret note, and other are informal voucher, are defined as image code 10,
First and second rectangular strip zone of the 3rd frame is made as secret note, and other are informal voucher, are defined as image code 11,
The 3rd rectangular strip zone of the 4th frame is made as secret note, and other are informal voucher, are defined as image code 100,
By that analogy, until 2
N-2
-1 two field picture defines 2 carry system codes of each two field picture;
With above-mentioned 2
N-2
-1 two field picture is linked in sequence and forms original cycle tests.
The production of original cycle tests is that piece image is equally divided in the horizontal direction
N(
N＞4) individual rectangular area is as shown in Figure 3.Fill the rectangle of the leftmost side and the rightmost side of a two field picture with a kind of color, initiation region and end region that expression detects.The zone that middle a plurality of rectangles are formed is effective surveyed area, and fill with other two kinds of colors in this zone.Two kinds of color showing different numerical.In order to simplify detection, the initiation region of both sides and end region are with colored, and promptly any colour except that black and white is filled.Middle effective surveyed area is with black or white the filling.The rectangular tables that oblique line among Fig. 3 is filled is shown colored rectangle of filling, and is initiation region and the end region that detects, and effectively the oblique cross wires in the surveyed area is filled is expressed as black rectangle, and empty forms is shown white rectangle.Be found to be colored region in the detection and show then that to white/black zone saltus step beginning entering detects.Then show and withdraw from detection when jumping to colored region once more.
In the effective rectangular area of N-2 piece in the middle of the colored region, black through filling, the white various colors of each rectangle representes 1 or 0.Be not difficult to find that 6 rectangles among Fig. 3 can be used to represent binary zero 00000b to 111111b, being converted into the decimal system then is 0 to 63, so this block graphics can represent 0 → (2
N-2-1) such 2
N-2Individual integer.According to the Vn (frame count in n expression signal source) of formula 1 definition, obvious 0≤Vn≤2
N-2-1.
With Fig. 3 (N=8, down together) is example, and this group rectangle can be represented 64 integers, and the generation rule of sequence changes for the sequential loop that increases progressively according to from 0 to 63 (111111b), like Fig. 4.The highest significant position of rectangle sequence (MSB) is on the right side, and least significant bit (LSB) is on a left side, and the binary number situation of actual expression is just the opposite; Be that MSB is on a left side; LSB is example on the right side with (e) among Fig. 4, is combined as from what the rectangular block sequence was read: 010100; Actual binary combination then is: 001010, promptly 10.
Cataloged procedure is according to 0 → (2
N-2-1) rule of circulation is encoded into corresponding rectangle combination respectively, has described the cataloged procedure of the decimal system 37 (100101b) like Fig. 5.
Embodiment four:
Present embodiment is the improvement of embodiment three, is that embodiment three detects refinement about splitting picture.The described method of splitting the picture detection of present embodiment:
Each symmetrical position, rectangular strip zone of effective surveyed area of the cycle tests after processing, a plurality of test points of selection from top to bottom.The selection of test point is as shown in Figure 6, and the middle stain from top to bottom of each rectangle is expressed as test point among the figure.
The contrast rectangular strip separately in the zone brightness value Y of test point whether identical, if " being " then do not split picture, if " deny " then explain that the picture of splitting is arranged.
According to the characteristics of splitting picture, when splitting the picture generation, the pixel of each row of cycle tests all possibly change, and Fig. 7 has described a kind of situation of splitting picture.So need all pixels of each row of inspection whether consistent, if having inconsistent then show to have split picture and produce.So it is different when detecting frame losing that when picture used coding/decoding method is split in inspection, difference is can not only see the coding in the delegation for one-frame video data this moment, and the value that should obtain multirow even each row compares just and can judge.Just wherein a kind of fairly simple and the most common a kind of picture situation of splitting of Fig. 7.Owing to split as being not difficult to avoid occurring in pocket, so increase
NValue is divided into more a plurality of rectangular areas with picture, i.e. refinement surveyed area can increase and detects the probability that splits picture, and certain this phenomenon probability of happening is very little.In addition, maybe be wrong when splitting the value that obtains as the time series decoding, so the correctness that frame losing detects just cannot guarantee.
When generating cycle tests, selecting black and white is that fill color can improve detection efficiency; Because image for the YUV color format; The pixel difference of black and white is the value of Y; The value of U and V all is the same, so get final product in the Y value that does not just only need simultaneously to compare each pixel that detects each pixel.Image is kept at the size that each Y, U, V in the internal memory all takies 1 byte, only detects the Y value and can simplify workload greatly, has improved efficient.
Embodiment five:
Present embodiment is the improvement of embodiment two, three, is the refinement that embodiment two, three detects about frame losing.Present embodiment is the method that frame losing detects, and said method is used and is arranged on the cycle tests decoder in the signal receiving device, and said method is following:
Black and white bar in the cycle tests after the cycle tests decoder will be handled according to the definition of 2 carry system code images in effective surveyed area of each two field picture is interpreted as 2 carry system codes.
To original cycle tests or convergent-divergent cycle tests, just can obtain the represented integer value of this sequence through the color of analyzing in its corresponding rectangle zone.Because each position color is prone to know (in order to reduce the influence that the border possibly caused in each rectangular area; Central point value from each rectangle; Judge that the color of this pixel can confirm the numerical value that this zone is represented; As shown in Figure 8, the stain of the intersection point of horizontal line and vertical line is represented capture vegetarian refreshments position among the figure).By the numerical value that color can this rectangular area be represented, obtain the represented numerical value of each rectangle after, be easy to and can obtain the corresponding integer value of current sequence by backstepping according to coding principle, like Fig. 9.
The numerical difference between of 2 carry system codes of any two successive frames of cycle tests after monitoring is handled if be 1, perhaps is 1-2
N-2
, then there is not frame losing, if then showing, other differences have frame losing, difference to be the frame losing number.
According to coding principle, following rule is followed in the integer-valued variation of every frame video data representative:
Numerical value increases progressively 1 (except 2 at every turn
N-2
-1 → 0 saltus step);
From 2
N-2
-1 jumps at 0 o'clock, and numerical value change is 1-2
N-2
That is:
So the difference that is got the twice decoded numerical value in front and back by formula 2 is 1 perhaps, perhaps is 1-2
N-2
If other differences then show has frame losing to produce, difference is the frame losing number.For example, for preceding text
N=8 cycle tests, sequence numerical value circulate between 0 to 63, and front and back two integer-valued differences satisfy formula 2, should be 1 or-63.
What should explain at last is; Below only unrestricted in order to technical scheme of the present invention to be described; Although the present invention is specified with reference to the preferred arrangement scheme; Those of ordinary skill in the art should be appreciated that can to technical scheme of the present invention (such as 2 carry system codes of cycle tests with other forms replace, the process that detects, the sequencing of step etc.) make amendment or be equal to replacement, and do not break away from the spirit and the scope of technical scheme of the present invention.
Claims (2)
1. one kind is detected the system that picture is split in the Digital Video System frame losing; It is characterized in that; Comprise: have the signal generation apparatus of the cycle tests maker that produces original cycle tests, described signal generation apparatus has the output interface of an original cycle tests of output, and output interface is connected with the measured number video system; Described signal receiving device has an input interface, is connected the cycle tests that receives after handling with the output interface of measured number video system; Be provided with frame losing detector that cycle tests after utilize handling detects frame losing in the described signal receiving device, utilize cycle tests after handling to detect to split picture splitting the picture detector;
The step that described cycle tests maker generates original cycle tests is following:
One two field picture is equally divided into N rectangular strip zone in the horizontal direction, and N is a positive integer, and N is more than or equal to 4;
Any a kind of color filling except that black and white is used in the rectangular strip zone of the leftmost side, and as detecting origin identification, the rectangular strip zone of the rightmost side uses the color identical with the leftmost side to fill, and finishes to identify as detecting;
Rectangular strip zone between origin identification and end sign is effective surveyed area; Each rectangular strip zone in effective surveyed area is filled with black or white respectively; Black represents 1, and white represents 0, and chequered with black and white effective surveyed area forms a frame 2 carry system code images;
The rectangular strip zone of the 0th frame all is made as informal voucher, is defined as image code 0,
The first rectangular strip zone of first frame is made as secret note, and other are informal voucher, are defined as image code 1,
The second rectangular strip zone of second frame is made as secret note, and other are informal voucher, are defined as image code 10,
First and second rectangular strip zone of the 3rd frame is made as secret note, and other are informal voucher, are defined as image code 11,
The 3rd rectangular strip zone of the 4th frame is made as secret note, and other are informal voucher, are defined as image code 100,
The rest may be inferred by analogy, until 2
N-2
-1 two field picture defines 2 carry system codes of each two field picture;
With above-mentioned 2
N-2
-1 two field picture is linked in sequence and forms original cycle tests;
The step that said frame losing detector detects frame losing is following:
The cycle tests decoder is interpreted as 2 carry system codes according to the definition of 2 carry system code images with the black and white bar in effective surveyed area of each two field picture in original cycle tests or the convergent-divergent cycle tests;
Monitoring the numerical difference between of 2 carry system codes of original cycle tests or any two successive frames of convergent-divergent cycle tests, if be 1, perhaps is 1-2
N-2
, then there is not frame losing, if then showing, other differences have frame losing, difference to be the frame losing number;
Saidly split that to detect the step split picture as detector following:
Each symmetrical position, rectangular strip zone of effective surveyed area of the cycle tests after processing, a plurality of test points of selection from top to bottom;
The contrast rectangular strip separately in the zone brightness value Y of test point whether identical, if " being " then do not split picture, if " denying " the picture of splitting arranged.
2. the method for picture is split in a detection Digital Video System frame losing of using the said system of claim 1, it is characterized in that the step of said method is following:
Generate the step of original cycle tests: be used for producing original cycle tests at the cycle tests maker of signal generation apparatus;
Send the step of original cycle tests: be used for signal generation apparatus original cycle tests is sent to measured number video system and signal receiving device;
Original cycle tests is handled the step of operation: be used for original cycle tests and be sent to the measured number video system; In the measured number video system, handle operation; Produce the cycle tests after handling, and cycle tests output place after will handling is to signal receiving device;
The step that receives: be used for signal receiving device and receive the convergent-divergent cycle tests that the measured number video system is sent;
The step that detects: be used for signal receiving device the cycle tests after handling is carried out frame losing, splits the picture detection:
Splitting picture detects: the cycle tests after the processing gets into to split and detects each two field picture as tester and whether split picture, if " deny " then continue to detect the next frame image, and constantly circulation, if " being " then will split picture frame and carry out mark, and entering " recorded steps ";
Frame losing detects: the cycle tests after the processing gets into and detects whether frame losing in the frame losing detector, if " deny " then continue to detect next sequence, if " being " then the frame losing sequence is carried out mark, and entering " recorded steps ";
Recorded steps: be used for handling the frame losing of back cycle tests and splitting picture according to label record.
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| CN105611291B (en) * | 2015-12-31 | 2019-01-08 | 上海众源网络有限公司 | The method and apparatus that mark information is added in the video frame and detects frame losing |
| CN109104605B (en) * | 2018-08-09 | 2020-12-29 | 晶晨半导体(上海)股份有限公司 | Frame data conversion system, frame data fault positioning device and method |
| CN112995650B (en) * | 2019-12-18 | 2023-10-20 | 天翼数字生活科技有限公司 | Method and device for detecting video continuity of camera |
| CN111405272B (en) * | 2020-02-23 | 2021-04-20 | 中国科学院西安光学精密机械研究所 | Device and method for detecting lost frame and repeated frame of camera |
| CN114897758A (en) * | 2021-01-26 | 2022-08-12 | 腾讯科技（深圳）有限公司 | Image frame loss detection method, device, equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1208968C (en) * | 2002-11-21 | 2005-06-29 | 北京中科大洋科技发展股份有限公司 | Apparatus for making, transmitting and receiving broadcasting type quasi video frequency requested program |
| EP1775954A1 (en) * | 2005-10-14 | 2007-04-18 | Thomson Licensing | Method and apparatus for reconstructing a video frame for spatial multi-layer video sequence |
| CN101217339A (en) * | 2007-12-29 | 2008-07-09 | 华为技术有限公司 | A method, device and base station for frame dropping detection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090103617A1 (en) * | 2007-10-22 | 2009-04-23 | The Hong Kong University Of Science And Technology | Efficient error recovery with intra-refresh |
-
2010
- 2010-12-31 CN CN201010618642A patent/CN102065318B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1208968C (en) * | 2002-11-21 | 2005-06-29 | 北京中科大洋科技发展股份有限公司 | Apparatus for making, transmitting and receiving broadcasting type quasi video frequency requested program |
| EP1775954A1 (en) * | 2005-10-14 | 2007-04-18 | Thomson Licensing | Method and apparatus for reconstructing a video frame for spatial multi-layer video sequence |
| CN101217339A (en) * | 2007-12-29 | 2008-07-09 | 华为技术有限公司 | A method, device and base station for frame dropping detection |
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| CN102065318A (en) | 2011-05-18 |
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