CN105681897B - A kind of commercial detection method and system - Google Patents
A kind of commercial detection method and system Download PDFInfo
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Abstract
The present invention provides a kind of commercial detection method and systems, when method includes: that playback equipment detects video playing, the video jump frame threshold value of all adjacent two field pictures in preset sliding window threshold value in currently playing video and the histogram difference of two squares of every adjacent two field pictures are obtained according to preset frame algorithm, then obtain the time periods of silence in currently playing video；The histogram difference of two squares in currently playing video per adjacent two field pictures is compared with video jump frame threshold value, and judges time periods of silence whether in preset specified mute interval threshold range；Frame threshold value is jumped when the histogram difference of two squares of two field pictures adjacent in currently playing video is greater than video, and time periods of silence is then determined as that advertisement plays in specified mute interval threshold range.The present invention passes through the frame difference for detecting adjacent two field pictures in currently playing video and time periods of silence to determine whether being playing advertisement, realizes the accurate detection for interting position in video to advertisement.
Description
Technical field
The present invention relates to Online Video service technology field more particularly to a kind of commercial detection methods and system.
Background technique
In recent years, with the development of internet, the amusement based on Online Video, friend-making, teaching have obtained increasingly extensive
Using.And now with the rise of internet, Video service due to haveing the advantages that can to index, it is easy to use, obtained netizen
Receiving.
On TV, in the video on network, more and more advertisements are played.Wish that obtaining advertisement broadcasts in advertisement dispensing side
It puts or watched time, spectators wants to skip advertisement or search required ad content.But existing commercial detection method,
It is not all able to achieve in video display process, initial time is played to advertisement and is accurately detected.
Therefore the existing technology needs further improvement.
Summary of the invention
In view of the above shortcomings in the prior art, it is an object of the invention to provide a kind of purposes of commercial detection side for user
Method and system, it is intended to which solving in the prior art can not be in video display process, and the carry out for playing initial time to advertisement is accurate
The problem of detection.
The technical proposal for solving the technical problem of the invention is as follows:
A kind of commercial detection method, wherein the method includes the steps:
A, it when playback equipment detects video playing, is obtained in currently playing video according to preset frame algorithm preset
The video jump frame threshold value of all adjacent two field pictures and the histogram difference of two squares per adjacent two field pictures in sliding window threshold value,
The time periods of silence in currently playing video is obtained again；
B, by currently playing video per adjacent two field pictures the histogram difference of two squares and the video jump frame threshold value into
Whether row compares, and judge the time periods of silence in preset specified mute interval threshold range；
C, frame threshold value is jumped when the histogram difference of two squares of two field pictures adjacent in currently playing video is greater than the video, and
The time periods of silence is then determined as that advertisement plays in the specified mute interval threshold range.
The commercial detection method, wherein before the step A further include:
S, the frame algorithm for calculating video jump frame threshold value and the histogram difference of two squares per adjacent two field pictures is preset, and
Sliding window threshold value and specified mute interval threshold range are set.
The commercial detection method, wherein the step A is specifically included:
A1, playback equipment are measured in real time video playing, when detecting broadcasting video, then obtain currently playing view
Histogram difference of two squares S in frequency in preset sliding window threshold value per adjacent two field picturesj, wherein, SjIndicate the histogram difference of two squares of jth frame figure line and -1 frame image of jth, Pj(i) jth is indicated
The gray scale of the i-th column, Width indicate the columns of every frame image in frame image；
A2, according to the histogram difference of two squares S of all adjacent two field pictures in the sliding window threshold valuejIt is flat to obtain histogram
Mean variance S, wherein, SxIndicate xth frame image and -1 frame image of xth the histogram difference of two squares, N indicate described in
Preset sliding window threshold size；
A3, video jump frame threshold value A is obtained according to the product of the histogram difference of two squares mean value S and preset empirical coefficient K,
Wherein K is the integer of 5-10；
Time periods of silence T in A4, the currently playing video of acquisition, wherein T is the real number greater than 0.
The commercial detection method, wherein the specified mute interval threshold range is 20ms-1s.
The commercial detection method, wherein the empirical coefficient value is 7.
A kind of commercial detection system, wherein include:
Play parameter obtains module, when detecting video playing for playback equipment, is worked as according to the acquisition of preset frame algorithm
The video of all adjacent two field pictures jumps frame threshold value and per adjacent two in preset sliding window threshold value in preceding broadcasting video
The histogram difference of two squares of frame image, then obtain the time periods of silence in currently playing video；
Comparison module, for jumping the histogram difference of two squares in currently playing video per adjacent two field pictures with the video
Become frame threshold value to be compared, and judges the time periods of silence whether in preset specified mute interval threshold range；
Predicated execution module is greater than the view for the histogram difference of two squares when adjacent two field pictures in currently playing video
Chatter becomes frame threshold value, and the time periods of silence is then determined as that advertisement plays in the specified mute interval threshold range.
The commercial detection system, wherein further include:
Setup module, for presetting for calculating video jump frame threshold value and per the histogram difference of two squares of adjacent two field pictures
Frame algorithm, and sliding window threshold value and specified mute interval threshold range are set.
The commercial detection system, wherein the play parameter obtains module and specifically includes:
Frame difference acquiring unit is measured in real time video playing for playback equipment, when detecting broadcasting video, then
Obtain the histogram difference of two squares S in currently playing video in preset sliding window threshold value per adjacent two field picturesj, wherein, SjIndicate the histogram difference of two squares of jth frame figure line and -1 frame image of jth, Pj(i) jth is indicated
The gray scale of the i-th column, Width indicate the columns of every frame image in frame image；
Frame difference mean value acquiring unit, for flat according to the histogram of all adjacent two field pictures in the sliding window threshold value
Variance SjHistogram difference of two squares mean value S is obtained, wherein, SxIndicate the histogram of xth frame image and -1 frame image of xth
The figure difference of two squares, N indicate the preset sliding window threshold size；
Frame threshold value acquiring unit is jumped, for the product according to the histogram difference of two squares mean value S and preset empirical coefficient K
It obtains video and jumps frame threshold value A, wherein K is the integer of 5-10；
Time periods of silence acquiring unit, for obtaining the time periods of silence T in currently playing video, wherein T is greater than 0
Real number.
The commercial detection system, wherein the specified mute interval threshold range is 20ms-1s.
The commercial detection system, wherein the empirical coefficient value is 7.
A kind of commercial detection method and system provided by the present invention, method include: that playback equipment detects video playing
When, all adjacent two field pictures in preset sliding window threshold value are obtained in currently playing video according to preset frame algorithm
Video jumps frame threshold value and the histogram difference of two squares per adjacent two field pictures, then obtains the mute time in currently playing video
Section；The histogram difference of two squares in currently playing video per adjacent two field pictures is compared with video jump frame threshold value,
And judge time periods of silence whether in preset specified mute interval threshold range；When two frames figure adjacent in currently playing video
The histogram difference of two squares of picture is greater than video and jumps frame threshold value, and time periods of silence is then sentenced in specified mute interval threshold range
It is set to advertisement broadcasting.The present invention is judged by detecting frame difference and the time periods of silence of adjacent two field pictures in currently playing video
Whether it is playing advertisement, realizes the accurate detection for interting position in video to advertisement.
Detailed description of the invention
Fig. 1 is the flow chart of commercial detection method preferred embodiment of the present invention.
Fig. 2 is the specific flow chart that play parameter is obtained in commercial detection method of the present invention.
Fig. 3 is the structural block diagram of commercial detection system preferred embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer and more explicit, right as follows in conjunction with drawings and embodiments
The present invention is further described.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and do not have to
It is of the invention in limiting.
Referring to Figure 1, Fig. 1 is the flow chart of commercial detection method preferred embodiment of the present invention.As shown in Figure 1, institute
State method comprising steps of
When S100, playback equipment detect video playing, obtained in currently playing video according to preset frame algorithm pre-
If sliding window threshold value in all adjacent two field pictures video jump frame threshold value and histogram per adjacent two field pictures it is flat
Variance, then obtain the time periods of silence in currently playing video.
In the embodiment of the present invention, jumped by the video to all adjacent two field pictures in preset sliding window threshold value
Frame threshold value and the histogram difference of two squares per adjacent two field pictures, and the detection and operation of time periods of silence judgement are realized pair
Advertisement interts the detection of position in video.Since common advertisement has following two form: first is that not only include dynamic video but also
Advertisement including audio, second is that including the advertisement of static video (namely poster or picture) and audio.Because being inserted into advertisement
The moment played out often has the short time mute or volume moment reduces, has if playing simultaneously there are also advertisement video
There is biggish picture frame to jump.If picture frame jump or the time periods of silence at single detection a certain moment, are all not enough to judge
The broadcasting of advertisement whether is being carried out at this time.It is only analyzed simultaneously in conjunction with the two, whether ability accurate judgement has currently started to broadcast
Put advertisement.
Wherein, sliding window is a kind of flow control technique.Sliding window protocol is one for improving handling capacity simultaneously
Kind technology, that is, allow sender to transmit additional packet before receiving any response, recipient tells sender at a time
How many packets (claiming window size) can be sent.Transmission control, the size meaning of sliding window are carried out using sliding window in Transmission Control Protocol
Taste recipient there are also great buffer areas can be used for receiving data.Sender can be determined by the size of sliding window
The data of how many byte should be sent.When sliding window is 0, sender cannot generally retransmit datagram.
Step S200, by the histogram difference of two squares and video jump frame in currently playing video per adjacent two field pictures
Whether threshold value is compared, and judge the time periods of silence in preset specified mute interval threshold range.
Step S300, frame is jumped when the histogram difference of two squares of two field pictures adjacent in currently playing video is greater than the video
Threshold value, and the time periods of silence is then determined as that advertisement plays in the specified mute interval threshold range.
All adjacent two frames figures in preset sliding window threshold value are obtained in currently playing video in the step s 100
The video jump frame threshold value of picture and the histogram difference of two squares per adjacent two field pictures, then when obtaining mute in currently playing video
Between after section, the histogram difference of two squares of every adjacent two field pictures need to be compared with video jump frame threshold value, and judge institute simultaneously
Time periods of silence is stated whether in the specified mute interval threshold range, only meets above-mentioned two condition simultaneously, can just sentence
Settled preceding broadcasting content is advertisement.
Example is further carried out, in the step S100 before acquisition play parameter further include:
Step S10, the frame for calculating video jump frame threshold value and the histogram difference of two squares per adjacent two field pictures is preset
Algorithm, and sliding window threshold value and specified mute interval threshold range are set.
It is analyzed according to existing advertisement insertion play-back technology it is found that the mute time of advertisement insertion moment generally exists
Greater than 20ms, and it is less than 1s, it is possible to according to this empirical value, mute, the detection advertisement insertion moment of exclusive PCR
Short time mute position, that is, 20ms-1s is set by the specified mute interval threshold range.
Example is further carried out, is specifically included as shown in Fig. 2, obtaining play parameter in the step S100:
Step S101, playback equipment is measured in real time video playing, when detecting broadcasting video, then obtains current
Play the histogram difference of two squares S in video in preset sliding window threshold value per adjacent two field picturesj, wherein, SjIndicate the histogram difference of two squares of jth frame figure line and -1 frame image of jth, Pj(i) jth is indicated
The gray scale of the i-th column, Width indicate the columns of every frame image in frame image.
When current video broadcasting content is advertisement, then there is the biggish histogram difference of two squares (i.e. frame with the image of former frame
Difference).Therefore the histogram difference of two squares S per adjacent two field pictures obtained in step s101j, that is, can determine whether the difference of image consecutive frame
Different size, later the step of can using obtain frame difference and acquisition video jump frame threshold value come compare to determine the frame difference whether be
Biggish frame is poor.
Step S102, according to the histogram difference of two squares S of all adjacent two field pictures in the sliding window threshold valuejIt obtains straight
Square figure difference of two squares mean value S, wherein, SxIndicate the histogram difference of two squares of xth frame image and -1 frame image of xth, N table
Show the preset sliding window threshold size；
Step S103, video is obtained according to the product of the histogram difference of two squares mean value S and preset empirical coefficient K and jumps frame
Threshold value A, wherein K is the integer of 5-10.
In implementation of the invention, video jump frame threshold value A is not to preset, but in video display process
Pass through the histogram difference of two squares S according to all adjacent two field pictures in the sliding window threshold valuejIt is equal to obtain the histogram difference of two squares
Value and the product of preset empirical coefficient K obtain.When it is implemented, the empirical coefficient K is set as 7.
Step S104, the time periods of silence T in currently playing video is obtained, wherein T is the real number greater than 0.
As it can be seen that by above-mentioned detection method, when the histogram difference of two squares of two field pictures adjacent in currently playing video is greater than
Video jumps frame threshold value, and time periods of silence is then determined as that advertisement plays in specified mute interval threshold range, realizes wide
Accuse the accurate detection of insertion position.
Based on the above method, the present invention also provides a kind of commercial detection systems, as shown in figure 3, the commercial detection system
Include:
Play parameter obtains module 100, when detecting video playing for playback equipment, is obtained according to preset frame algorithm
The video of all adjacent two field pictures jumps frame threshold value and per adjacent in preset sliding window threshold value in currently playing video
The histogram difference of two squares of two field pictures, then obtain the time periods of silence in currently playing video；As detailed above.
Comparison module 200, for by currently playing video per adjacent two field pictures the histogram difference of two squares and the view
Whether chatter becomes frame threshold value and is compared, and judge the time periods of silence in preset specified mute interval threshold range；
As detailed above.
Predicated execution module 300 is greater than institute for the histogram difference of two squares when adjacent two field pictures in currently playing video
Video jump frame threshold value is stated, and the time periods of silence is then determined as that advertisement is broadcast in the specified mute interval threshold range
It puts；As detailed above.
Example is further carried out, in the commercial detection system, further includes:
Setup module, for presetting for calculating video jump frame threshold value and per the histogram difference of two squares of adjacent two field pictures
Frame algorithm, and sliding window threshold value and specified mute interval threshold range are set；As detailed above.
Example is further carried out, in the commercial detection system, the play parameter obtains module 100 and specifically includes:
Frame difference acquiring unit is measured in real time video playing for playback equipment, when detecting broadcasting video, then
Obtain the histogram difference of two squares S in currently playing video in preset sliding window threshold value per adjacent two field picturesj, wherein, SjIndicate the histogram difference of two squares of jth frame figure line and -1 frame image of jth, Pj(i) jth is indicated
The gray scale of the i-th column, Width indicate the columns of every frame image in frame image；As detailed above.
Frame difference mean value acquiring unit, for flat according to the histogram of all adjacent two field pictures in the sliding window threshold value
Variance SjHistogram difference of two squares mean value S is obtained, wherein, SxIndicate the histogram of xth frame image and -1 frame image of xth
The figure difference of two squares, N indicate the preset sliding window threshold size；As detailed above.
Frame threshold value acquiring unit is jumped, for the product according to the histogram difference of two squares mean value S and preset empirical coefficient K
It obtains video and jumps frame threshold value A, wherein K is the integer of 5-10；As detailed above.
Time periods of silence acquiring unit, for obtaining the time periods of silence T in currently playing video, wherein T is greater than 0
Real number；As detailed above.
Example is further carried out, in the commercial detection system, the specified mute interval threshold range is 20ms-
1s；As detailed above.
Example is further carried out, in the commercial detection system, the empirical coefficient value is 7；As detailed above.
In conclusion a kind of commercial detection method provided by the present invention and system, method includes: that playback equipment detects
When video playing, obtained in currently playing video all adjacent two in preset sliding window threshold value according to preset frame algorithm
The video jump frame threshold value of frame image and the histogram difference of two squares per adjacent two field pictures, then obtain quiet in currently playing video
The sound period；The histogram difference of two squares in currently playing video per adjacent two field pictures is carried out with video jump frame threshold value
Compare, and judges time periods of silence whether in preset specified mute interval threshold range；When adjacent in currently playing video
The histogram difference of two squares of two field pictures is greater than video and jumps frame threshold value, and time periods of silence is in specified mute interval threshold range
It is interior, then it is determined as that advertisement plays.The frame difference and mute time that the present invention passes through adjacent two field pictures in the currently playing video of detection
Section realizes the accurate detection for interting position in video to advertisement to determine whether be playing advertisement.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement all should belong to the guarantor of appended claims of the invention
Protect range.
Claims (2)
1. a kind of commercial detection method, which is characterized in that the method includes the steps:
A, it when playback equipment detects video playing, is obtained in currently playing video according to preset frame algorithm in preset sliding
The video jump frame threshold value of all adjacent two field pictures and the histogram difference of two squares per adjacent two field pictures in window threshold value, then obtain
Take the time periods of silence in currently playing video；
B, the histogram difference of two squares in currently playing video per adjacent two field pictures is compared with video jump frame threshold value
Compared with, and judge the time periods of silence whether in preset specified mute interval threshold range；
C, frame threshold value is jumped when the histogram difference of two squares of two field pictures adjacent in currently playing video is greater than the video, and described
Time periods of silence is then determined as that advertisement plays in the specified mute interval threshold range；
Before the step A further include:
S, the frame algorithm for calculating video jump frame threshold value and the histogram difference of two squares per adjacent two field pictures is preset, and is arranged
Sliding window threshold value and specified mute interval threshold range；
The step A is specifically included:
A1, playback equipment are measured in real time video playing, when detecting broadcasting video, then obtain in currently playing video
Histogram difference of two squares S in preset sliding window threshold value per adjacent two field picturesj, wherein, SjIndicate the histogram difference of two squares of jth frame figure line and -1 frame image of jth, Pj(i) jth is indicated
The gray scale of the i-th column, Width indicate the columns of every frame image in frame image；
A2, according to the histogram difference of two squares S of all adjacent two field pictures in the sliding window threshold valuejObtain the histogram difference of two squares
Mean value S, wherein, SxIndicate that the histogram difference of two squares of xth frame image and -1 frame image of xth, N indicate described default
Sliding window threshold size；
A3, video jump frame threshold value A is obtained according to the product of the histogram difference of two squares mean value S and preset empirical coefficient K, wherein
K is the integer of 5-10；
Time periods of silence T in A4, the currently playing video of acquisition, wherein T is the real number greater than 0；
The specified mute interval threshold range is 20ms-1s；
The empirical coefficient value is 7.
2. a kind of commercial detection system characterized by comprising
Play parameter obtains module, when detecting video playing for playback equipment, is currently broadcast according to the acquisition of preset frame algorithm
Put the video jump frame threshold value of all adjacent two field pictures in preset sliding window threshold value in video and per adjacent two frames figure
The histogram difference of two squares of picture, then obtain the time periods of silence in currently playing video；
Comparison module, for the histogram difference of two squares in currently playing video per adjacent two field pictures to be jumped frame with the video
Whether threshold value is compared, and judge the time periods of silence in preset specified mute interval threshold range；
Predicated execution module is jumped for the histogram difference of two squares when adjacent two field pictures in currently playing video greater than the video
Become frame threshold value, and the time periods of silence is then determined as that advertisement plays in the specified mute interval threshold range；
The commercial detection system further include:
Setup module, for presetting the frame for calculating video jump frame threshold value and the histogram difference of two squares per adjacent two field pictures
Algorithm, and sliding window threshold value and specified mute interval threshold range are set；
The play parameter obtains module and specifically includes:
Frame difference acquiring unit is measured in real time video playing for playback equipment, when detecting broadcasting video, then obtains
Histogram difference of two squares S in currently playing video in preset sliding window threshold value per adjacent two field picturesj, wherein, SjIndicate the histogram difference of two squares of jth frame figure line and -1 frame image of jth, Pj(i) jth is indicated
The gray scale of the i-th column, Width indicate the columns of every frame image in frame image；
Frame difference mean value acquiring unit, for the histogram difference of two squares according to all adjacent two field pictures in the sliding window threshold value
SjHistogram difference of two squares mean value S is obtained, wherein, SxIndicate that the histogram of xth frame image and -1 frame image of xth is flat
Variance, N indicate the preset sliding window threshold size；
Frame threshold value acquiring unit is jumped, for obtaining according to the product of the histogram difference of two squares mean value S and preset empirical coefficient K
Video jumps frame threshold value A, and wherein K is the integer of 5-10；
Time periods of silence acquiring unit, for obtaining the time periods of silence T in currently playing video, wherein T is the reality greater than 0
Number；
The specified mute interval threshold range is 20ms-1s；
The empirical coefficient value is 7.
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| CN106131648A (en) * | 2016-07-27 | 2016-11-16 | 深圳Tcl数字技术有限公司 | The picture display processing method of intelligent television and device |
| CN106792163B (en) * | 2016-11-25 | 2021-10-29 | 上海乐欢软件有限公司 | Method and device for detecting video playing state |
| CN107846635B (en) * | 2017-08-23 | 2020-03-31 | 王程 | Advertisement video identification method based on digital watermark |
| CN111010608B (en) * | 2019-12-20 | 2021-09-10 | 维沃移动通信有限公司 | Video playing method and electronic equipment |
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| US20060224445A1 (en) * | 2005-03-30 | 2006-10-05 | Brian Axe | Adjusting an advertising cost, such as a per-ad impression cost, using a likelihood that the ad will be sensed or perceived by users |
| CN101175214B (en) * | 2007-11-15 | 2010-09-08 | 北京大学 | Method and apparatus for real-time detecting advertisement from broadcast data stream |
| CN101241552B (en) * | 2008-01-24 | 2010-08-11 | 北京六维世纪网络技术有限公司 | Image characteristic recognition method and device |
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