CN102769714B - A method of it eliminating flash of light and transition is caused to be reported by mistake - Google Patents
A method of it eliminating flash of light and transition is caused to be reported by mistake Download PDFInfo
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- CN102769714B CN102769714B CN201210082302.9A CN201210082302A CN102769714B CN 102769714 B CN102769714 B CN 102769714B CN 201210082302 A CN201210082302 A CN 201210082302A CN 102769714 B CN102769714 B CN 102769714B
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Abstract
The invention discloses a kind of methods eliminated flash of light and transition is caused to be reported by mistake, specifically include: extracting each frame of video sequence, generate the histogram of each frame；According to the difference value of the histogram calculation consecutive frame of each frame；Threshold value is calculated according to the difference value of all consecutive frames；The size of the difference value of the consecutive frame and the threshold value one by one filters out all current difference values greater than the threshold value；The former frame of the corresponding video frame of current difference value video frame corresponding with the histogram difference of front cross frame and the current difference value and the histogram difference of rear five frame are calculated according to the current difference value；By obtained histogram difference compared with the threshold value, shining point and point, transition are judged.The present invention eliminates the wrong report of transition caused by glistening by compared with threshold value, increasing the accuracy for judging point, transition and shining point to the analysis of the difference value of consecutive frame and histogram difference in video sequence.
Description
Technical field
The present invention relates to technical field of video processing more particularly to a kind of methods eliminated flash of light and transition is caused to be reported by mistake.
Background technique
(minimum unit for constituting telefilm is camera lens to each paragraph, the camera lens sequence that camera lens is joined together to form one by one
Column) all there is some single, relatively complete meaning, an action process is such as showed, a kind of correlativity, performance one are showed
Kind meaning etc..It is a complete narration level in telefilm, and just as the curtain in drama, fictitious chapters and sections are the same, one
Each and every one links together at paragraph, is formed complete telefilm.Therefore, paragraph is the most basic structure type of telefilm, electricity
It depending on the layer of structure of piece is in terms of content showed by paragraph.And the transition between paragraph and paragraph, scene and scene
Or conversion, just it is called transition.
Briefly, transition is exactly the Shot change in video file, for example, video camera first has taken auditorium, then
It is switched to rostrum.
When being edited to daily TV programme, automatic transition analysis first usually is carried out to video, finds video clip
In point, transition, brought convenience to editing.
During inventor realizes the present invention, following technical problem is existed in the prior art in inventor:
Under normal conditions, automatic transition analysis is all to calculate the difference value of consecutive frame in video first, then according to this
The changing rule of difference value to find at larger difference, and then is judged as point, transition.
If there is flash of light camera lens in video, the larger difference of consecutive frame will occur at flash of light, this will cause from turn
The wrong report of field analysis.
Summary of the invention
For the defects in the prior art, the present invention solves the problems, such as that flash of light causes transition analysis wrong report.
In order to solve the above technical problems, the present invention provides a kind of methods eliminated flash of light and transition is caused to be reported by mistake, specifically
Include:
The each frame for extracting video sequence, generates the histogram of each frame；
According to the difference value of the histogram calculation consecutive frame of each frame；
Threshold value is calculated according to the difference value of all consecutive frames；
The size of the difference value of the consecutive frame and the threshold value one by one filters out all greater than the threshold value
Current difference value；
The histogram difference of the current difference value corresponding video frame and front cross frame is calculated according to the current difference value
And the corresponding video frame of the current difference value former frame and rear five frame histogram difference；
By obtained histogram difference compared with the threshold value, if the above described threshold value, current difference value pair
The video frame answered is point, transition, if it is not, then the corresponding video frame of current difference value is shining point.
It wherein, include: to receive the video sequence before each frame for extracting video sequence.
Wherein, the histogram is stored in an one-dimension array.
Wherein, the difference value of the histogram calculation consecutive frame according to each frame specifically:
According to the difference value of the histogram calculation present frame of each frame and former frame, the difference value is stored in one
In two-dimensional array, the serial number of the two-dimensional array is sequentially slided in the video sequence.
Wherein, the difference value according to all consecutive frames is calculated threshold value and specifically includes:
Average value is calculated according to the difference value of the consecutive frame；
Show that the amplitude adjacent with the maximum value is greater than according to the maximum value in the average value and the difference value
The difference value of the average value；
It removes the maximum value and the adjacent amplitude of the maximum value is greater than the difference value of the average value, calculate remaining
The average value X and mean square deviation Y of difference value；
Threshold value is X+Y*Y.
Compared with prior art, the embodiment of the present invention has the advantage that through the difference to consecutive frame in video sequence
The analysis of value and histogram difference increase the accuracy for judging point, transition and shining point compared with threshold value, eliminate flash of light
Caused transition wrong report.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1: being a kind of flow chart for eliminating the method that flash of light causes transition to be reported by mistake in the embodiment of the present invention 1；
Fig. 2: being another flow chart for eliminating the method that flash of light causes transition to be reported by mistake in the embodiment of the present invention 2.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Provided in the embodiment of the present invention 1 it is a kind of eliminate flash of light cause transition report by mistake method, as shown in Figure 1, include with
Lower step:
Step S101 extracts each frame of video sequence, generates the histogram of each frame.
Step S102, according to the difference value of the histogram calculation consecutive frame of each frame.
Threshold value is calculated according to the difference value of all consecutive frames in step S103.
Step S104, the size of the difference value of the consecutive frame and the threshold value, filters out all be greater than one by one
The current difference value of the threshold value.
Step S105 calculates the straight of the corresponding video frame of the current difference value and front cross frame according to the current difference value
The histogram difference of the former frame of square figure difference and the corresponding video frame of the current difference value and rear five frame.
Step S106, by obtained histogram difference compared with the threshold value, if the above described threshold value, currently
The corresponding video frame of difference value is point, transition, if it is not, then the corresponding video frame of current difference value is shining point.
The technical solution bring of the embodiment of the present invention has the beneficial effect that: by the difference to consecutive frame in video sequence
The analysis of value and histogram difference increase the accuracy for judging point, transition and shining point compared with threshold value, eliminate flash of light
Caused transition wrong report.
Provided in the embodiment of the present invention 2 it is a kind of eliminate flash of light cause transition report by mistake method, as shown in Fig. 2, include with
Lower step:
Step S201 receives video sequence.
Step S202 extracts each frame of video sequence, generates the histogram of each frame, and the histogram is stored in one
In one-dimension array.
Step S203, according to the difference value of the histogram calculation consecutive frame of each frame, specifically:
According to the difference value of the histogram calculation present frame of each frame and former frame, the difference value is stored in one
In two-dimensional array, the serial number of the two-dimensional array is sequentially slided in the video sequence.
Threshold value is calculated according to the difference value of all consecutive frames in step S204, specifically:
Average value is calculated according to the difference value of the consecutive frame；
Show that the amplitude adjacent with the maximum value is greater than according to the maximum value in the average value and the difference value
The difference value of the average value；
It removes the maximum value and the adjacent amplitude of the maximum value is greater than the difference value of the average value, calculate remaining
The average value X and mean square deviation Y of difference value；
Threshold value is X+Y*Y.
Step S205, the size of the difference value of the consecutive frame and the threshold value, filters out all be greater than one by one
The current difference value of the threshold value.
Step S206 calculates the straight of the corresponding video frame of the current difference value and front cross frame according to the current difference value
The histogram difference of the former frame of square figure difference and the corresponding video frame of the current difference value and rear five frame.
Step S207, by obtained histogram difference compared with the threshold value, if the above described threshold value, currently
The corresponding video frame of difference value is point, transition, if it is not, then the corresponding video frame of current difference value is shining point.
The technical solution bring of the embodiment of the present invention has the beneficial effect that: by the difference to consecutive frame in video sequence
The analysis of value and histogram difference increase the accuracy for judging point, transition and shining point compared with threshold value, eliminate flash of light
Caused transition wrong report.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can lead to
Hardware realization is crossed, the mode of necessary general hardware platform can also be added to realize by software.Based on this understanding, this hair
Bright technical solution can be embodied in the form of software products, which can store in a non-volatile memories
In medium (can be CD-ROM, USB flash disk, mobile hard disk etc.), including some instructions are used so that a computer equipment (can be
Personal computer, server or network equipment etc.) execute method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that attached drawing is the schematic diagram of a preferred embodiment, module or stream in attached drawing
Journey is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in device in embodiment can describe be divided according to embodiment
It is distributed in the device of embodiment, corresponding change can also be carried out and be located in one or more devices different from the present embodiment.On
The module for stating embodiment can be merged into a module, can also be further split into multiple submodule.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Disclosed above is only several specific embodiments of the invention, and still, the present invention is not limited to this, any ability
What the technical staff in domain can think variation should all fall into protection scope of the present invention.
Claims (4)
1. a kind of method eliminated flash of light and transition is caused to be reported by mistake characterized by comprising
The each frame for extracting video sequence, generates the histogram of each frame；
According to the difference value of the histogram calculation consecutive frame of each frame, specifically: according to the histogram meter of each frame
The difference value of present frame and former frame is calculated, the difference value is stored in a two-dimensional array, and the serial number of the two-dimensional array exists
It is sequentially slided in the video sequence；
Threshold value is calculated according to the difference value of all consecutive frames；
The size of the difference value of the consecutive frame and the threshold value one by one filters out all working as greater than the threshold value
Preceding difference value；
According to the current difference value calculate the corresponding video frame of the current difference value and front cross frame histogram difference and
The former frame of the corresponding video frame of the current difference value and the histogram difference of rear five frame；
By obtained histogram difference compared with the threshold value, if the above described threshold value, current difference value are corresponding
Video frame is point, transition, if it is not, then the corresponding video frame of current difference value is shining point.
2. the method as described in claim 1, which is characterized in that include: before each frame for extracting video sequence
Receive the video sequence.
3. the method as described in claim 1, which is characterized in that the histogram is stored in an one-dimension array.
4. the method as described in claim 1, which is characterized in that thresholding is calculated in the difference value according to all consecutive frames
Value specifically includes:
Average value is calculated according to the difference value of the consecutive frame；
It is described to show that the amplitude adjacent with the maximum value is greater than according to the maximum value in the average value and the difference value
The difference value of average value；
It removes the maximum value and the adjacent amplitude of the maximum value is greater than the difference value of the average value, calculate remaining difference
The average value X and mean square deviation Y of value；Threshold value is X+Y*Y.
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| CN104980625A (en) * | 2015-06-19 | 2015-10-14 | 新奥特（北京）视频技术有限公司 | Method and apparatus of video transition detection |
| CN107527010B (en) * | 2017-07-13 | 2020-07-10 | 央视国际网络无锡有限公司 | Method for extracting video gene according to local feature and motion vector |
| CN108495171A (en) * | 2018-04-03 | 2018-09-04 | 优视科技有限公司 | Method for processing video frequency and its device, storage medium, electronic product |
Citations (2)
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| CN101382998A (en) * | 2008-08-18 | 2009-03-11 | 华为技术有限公司 | Testing device and method of switching of video scenes |
| CN102348049A (en) * | 2011-09-16 | 2012-02-08 | 央视国际网络有限公司 | Method and device for detecting position of cut point of video segment |
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| US7038736B2 (en) * | 2000-09-21 | 2006-05-02 | Canon Kabushiki Kaisha | Moving image processing apparatus and method, and computer readable memory |
| KR100850935B1 (en) * | 2001-12-27 | 2008-08-08 | 주식회사 엘지이아이 | Apparatus for detecting scene conversion |
| US7880815B2 (en) * | 2005-01-10 | 2011-02-01 | Mavs Lab, Inc. | Method for detecting and eliminating flash scene in digital video |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382998A (en) * | 2008-08-18 | 2009-03-11 | 华为技术有限公司 | Testing device and method of switching of video scenes |
| CN102348049A (en) * | 2011-09-16 | 2012-02-08 | 央视国际网络有限公司 | Method and device for detecting position of cut point of video segment |
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