CN101692269A - Method and device for processing video programs - Google Patents
Method and device for processing video programs Download PDFInfo
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- CN101692269A CN101692269A CN200910236043A CN200910236043A CN101692269A CN 101692269 A CN101692269 A CN 101692269A CN 200910236043 A CN200910236043 A CN 200910236043A CN 200910236043 A CN200910236043 A CN 200910236043A CN 101692269 A CN101692269 A CN 101692269A
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Abstract
The invention discloses a method and a device for processing video programs. The method comprises the following steps: analyzing video to acquire stable video information in the video programs; extracting character information in the stable video information by using a character identifying method; and dividing the video programs according to the character information to acquire video contents corresponding to the same programs. The method and the device provided by the invention for processing the video programs identify the character information from the stable information of television programs, and classify and store the television programs according to the character information so that users can search the interested video programs from the recorded video programs conveniently.
Description
Technical field
The present invention relates generally to field of video processing, refers in particular to a kind of method and apparatus of automatic processing video programs.
Background technology
Along with the progress of science and technology and the raising of people's living standard, people need more stress-relieving activity to alleviate working pressure and life stress, the video frequency program that with the TV programme is representative is just being played the part of such role in modern's life, and also is that the mankind obtain the most important channel of external information.
But there are many defectives in prior art.With the TV programme is example, and present TV programme is a lot, and people's work is extremely busy again, all TV programme all can not be finished watching, and also is difficult to finish even want programs of interest all finished watching, because TV programme has real-time.In this case, occurred recording arrangement on TV, it can get off television program record, watches at one's leisure for people.But this recording needs the user to select recording time starting point and recording time terminal point, needs artificial participation.If can't learn the broadcast time of oneself liking program, then can not finish recording of TV programme.If all TV programme are all recorded, then the user requires a great deal of time and search the user's interest program from recorded program, also may can not find programs of interest from the large-scale program of recording sometimes.Though more than mainly be example with the TV programme,, all there is analogue in a lot of video frequency programs.Therefore, press for a kind of method of processing video programs.
Summary of the invention
The present invention proposes a kind of method and apparatus of processing video programs, can divide at interior video frequency program comprising TV programme automatically, thereby make things convenient for the user to search interested video frequency program.
The technical scheme of the embodiment of the invention is achieved in that
A kind of method of processing video programs comprises:
Analysis video obtains the stable video information in the video frequency program;
Utilize character recognition method to extract Word message in the described stable video information;
According to described Word message video frequency program is divided, obtained the video content of same program correspondence.
Preferably, described analysis video, the stable video information of obtaining in the video frequency program comprises:
Be provided with and stablize the information search zone;
Whether change according to image information in the described stable information search zone and to determine stable video information.
Preferably, described whether changing according to image information in the described stable information search zone determines that stable video information is specially:
Brightness according to image pixel in the described stable information search zone changes definite stable video information.
Preferably, described brightness variation according to image pixel in the described stable information search zone determines that stable video information comprises:
The image pixel of stablizing in the information search zone is carried out initialization;
Calculate the variance of described stable information search zone interior pixel point brightness
According to described σ
2Determine stable video information, wherein Y
s=Y
s+ y (w, h), Y
2s=Y
2s+ y (w, h)
2, (w h) is pixel (w, the brightness of image of h) locating, Y to y
sFor pixel image intensity and, be initialized as zero, Y
2sBe the pixel image intensity quadratic sum, be initialized as zero, accumulation frame number T=T+1, accumulation frame number T is initialized as zero.
Preferably, described brightness variation according to image pixel in the described stable information search zone determines that stable video information comprises:
The pixel of stablizing in the information search zone is carried out initialization;
The degree of stability of calculating pixel also determines to stablize pixel according to degree of stability;
Determine stable video information according to described stable pixel.
Preferably, according to the degree of stability of following formula calculating pixel:
Wherein, y
tBe brightness, y
iThe brightness of this pixel during for moment t, K () is a kernel function, N is the positive integer greater than 1.
Preferably, also comprise:
According to Word message described video content is classified.
Preferably, after described video content being classified, also comprise according to Word message:
Similar video is mated the repeated in the similar video of filtering.
Preferably, described similar video is mated, the repeated in the similar video of filtering is specially:
From first video content of similar video, randomly draw first image, in second video content of similar video, find second image with described first images match;
Analyze frame by frame after with the position of the position of described first image and described second image described first video content and the alignment of described second video content, whether the corresponding section of judging described first image and described second image is identical, if identical then delete described first video content or described second video content.
Preferably, also comprise:
Generate the index list of described video content according to Word message and visual classification.
Preferably, also comprise:
Record corresponding video content according to the key message that the user is provided with.
A kind of device of processing video programs comprises:
Analytic unit is used for analysis video, obtains the stable video information in the video frequency program;
Recognition unit is used for utilizing character recognition method to extract the Word message of described stable video information;
Acquiring unit is used for according to described Word message video frequency program being divided, and obtains the video content of same program correspondence.
Preferably, also comprise:
Taxon is used for according to Word message described video content being classified.
Preferably, also comprise:
The filtering module is used for similar video is mated, the repeated in the similar video of filtering.
Preferably, also comprise:
The index generation unit is used for generating according to Word message and visual classification the index list of described video content.
Preferably, also comprise:
Recording elements is used for recording corresponding video content according to the key message that the user is provided with.
The present invention goes out Word message from the stable information Recognition of TV programme, according to Word message TV programme is carried out classification and storage, thereby makes things convenient for the user to search interested video frequency program from the video frequency program of recording; Further, the present invention can also record the user's interest TV programme according to Word message, thereby realizes the robotization of television program record, need not artificial participation, and better user experience is provided.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process flow diagram of method first embodiment of a kind of processing video programs of the present invention;
Fig. 2 is a step S110 particular flow sheet among Fig. 1;
Fig. 3 is the process flow diagram of method second embodiment of a kind of processing video programs of the present invention;
Fig. 4 is for stablizing the synoptic diagram that is provided with in information search zone among the step S111 among Fig. 2;
Fig. 5 is the composition structural drawing of device first embodiment of a kind of processing video programs of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Video frequency program in the various embodiments of the present invention is that example is described with the TV programme, and still, technical scheme of the present invention goes for the video frequency program of other type equally.
With reference to Fig. 1, show the process flow diagram of method first embodiment of a kind of processing video programs of the present invention.The method of described processing video programs comprises step:
Step S110, analysis video obtain the stable video information in the video frequency program.
Described stable video information is meant the information that the video frequency program picture remains unchanged in the N continuous frame, wherein N is more than or equal to 2, and final, the stable video information that obtains is to satisfy a series of video images of described condition.
In video frequency program, picture is constantly to change.But; record and the side of relay usually can add some information in video; it is stable that these information keep in the picture that changes; continuously a lot of frames do not change, and comprise title, collection sequence number, live or relay printed words, the title of sports tournament and team's title of taking part in game of TV station logo, TV programme or the like in these information.Certainly, described stable information not only comprises foregoing, also comprises the information that other remains unchanged in video.The aforementioned stable video information is the direct information that can obtain in the TV programme, is the direct information source that obtains video program content.
Step S120, utilize character recognition method to extract Word message in the described stable video information.
In the aforementioned stable video information, except icons such as TV station logo, the topmost Word message that is exactly in the video to be comprised.Can utilize literal extraction and recognition methods from the stable video image, to obtain Word message.Literal extracts and identification is prior art, for length considers that the embodiment of the invention does not specifically describe character recognition method, gets final product with reference to the data of related art.
The described Word message that obtains is called as stable Word message in the present invention.
Step S130, video frequency program is divided, obtained the video content of same program correspondence according to described Word message.
Video frequency program is to play continuously as TV programme, and different programs are continuous on video.For video frequency program is organized, record as requested, need cut apart division to video frequency program, the video segment of same program correspondence is divided be organized in one section video.
After having obtained the video segment of same program correspondence, just can record in the specific video and perhaps the video content of recording be carried out classification and storage.
With reference to Fig. 2, described step S110 can may further comprise the steps:
Step S111, be provided with and stablize the information search zone.
Be provided with that to stablize the information search zone be in order to reduce the complexity of Processing Algorithm, thereby improve processing speed, reduce hardware complexity.The establishing method of described stable region of search can be set by system default, also can be provided with voluntarily by the user.A kind of method is to set whole TV screen zone for stablizing the information search zone.But rule of thumb, described stable information generally all appears at the left side, the right and the top edge of TV screen, the local information such as demonstration television image and spoken title that need of other of picture.Therefore, a kind of preferred plan of establishment is provided with as shown in Figure 4, and wherein, the width of region of search can be regulated by parameter.
Step S112, whether change according to image information in the described stable information search zone and to determine stable video information.
Determine that the method whether image change is a lot, can adopt the method for judging based on single pixel, also can adopt the method for handling based on piecemeal.The image information that is adopted can be to adopt the monochrome information in pixel or zone, also can adopt the mode of brightness in conjunction with colourity simultaneously.The criterion of judging can adopt continuous multiple frames to ask the method for variance, also can adopt two continuous frames to ask the method for difference.
Introduce a kind of whether changing according to image information in the described stable information search zone below and determine the method for optimizing of stable video information, i.e. brightness according to image pixel in the described stable information search zone changes definite stable video information.Whether this method determines greater than threshold value whether single pixel variation has taken place by the variance of brightness in the N continuous frame of judging single pixel in the region of search, the video image that the pixel that do not change is formed is as stable video information, described threshold value can wait factor to determine according to the actual requirements, and the present invention does not set this.
Introduce the concrete a kind of implementation procedure of this method below, in practice, also can adopt alternate manner to calculate and judge.
At first, the pixel of stablizing in the information search zone is carried out initialization.
To each pixel in the stable information search zone of setting, each pixel of initialization is in brightness of image and the Y in certain period
sBe zero, brightness of image quadratic sum Y
2sBe zero, accumulation frame number T is zero.
Secondly, (w h), supposes that its brightness in present frame is that (w h), then upgrades Y to y to stablizing certain point in the information search zone
s=Y
s+ y (w, h), Y
2s=Y
2s+ y (w, h)
2, accumulation frame number T=T+1 calculates this variance in accumulated time and square is
If σ
2Greater than a certain threshold value, think that then current pixel changes too greatly, not to stablize information pixels, and carry out initialization again, set brightness of image and Y
sBe zero, brightness of image square and Y
2sBe zero, accumulation frame number T is zero; If T is greater than threshold value T1, and σ
2Less than a certain threshold value, determine that then current pixel is to stablize information pixels, thereby determine stable video information that corresponding duration T is the time that stable video information continues.
The advantage of said method is to calculate simply, and memory space is little.Described brightness according to described stable information search zone interior pixel changes determines to stablize a kind of preferred version that information is the embodiment of the invention, can also change to determine stable video information according to other parameter of described stable information search zone interior pixel.
Introduce the another kind of implementation procedure of this method below.
All pixels to candidate region (stablizing the information search zone) are carried out following processing:
At first, initialization canned data.
Store the collection brightness of N time of this position order, suppose that each monochrome information constantly is respectively y
0, y
1... y
N-1
Secondly, the degree of stability of calculating pixel and take a decision as to whether stable pixel according to degree of stability.
To present frame, the brightness of supposing this position is y
t, calculate current degree of stability and be
Wherein, K () is a kernel function, and a kind of mode is the one dimension Gaussian function of center at 0 for getting K ().If then degree of stability is greater than a certain threshold value, determine that then current point is to stablize pixel, otherwise, determine that current point is unstable pixel, wherein, N is the positive integer greater than 1, can be taken as 100.
Once more, the information of updated stored is with up-to-date Pixel Information replacement Pixel Information the earliest, promptly from formation deletion y
t, add y to formation
T-N, while retention time ordinal relation.
After having obtained the position of stable information pixels, simple, can directly will can comprise the zone of all stable information pixels as stablizing information area.Another kind of mode is, sets and stablizes information position mask image, and this image is identical with original image size or proportional, the value of each position of this image is a true or false, if the pixel in the original image of this position correspondence is judged to be stable information, then this positional value is true, otherwise is false.At first carry out filtering, then it is carried out the expansive working of binary picture, and then carry out the corrosion operation of binary picture, finally the image that obtains is carried out the connected domain analysis, thereby obtain stablizing information area stablizing information position mask image.This method can be eliminated noise, and, will stablize pixel and be connected to the zone, be convenient to follow-up literal identification.
In order to reduce operand, in the said method processing procedure, can every two field picture all not handled, but handle a two field picture every several frames.
Described step S130 can may further comprise the steps:
Step S131, video frequency program is cut apart according to described Word message.
For same program, the stable Word message that wherein comprises generally is identical, can determine same video content according to identical stable Word message.Particularly, video that can continuous in time and stable Word message is identical is as same video frequency program.At first, the beginning frame number of initializing set current video is a present frame, and the stable Word message that writes down in this frame is stablized Word message for the current video fragment, for follow-up each frame, if the stable Word message of the stable Word message of this frame and video segment is identical, think that then this frame belongs to the current video fragment.If stablize the Word message difference, then reinitialize, create new video segment, and this frame is stablized the stable Word message of Word message as newly-built video segment.
In the reality, often insert advertisement in a lot of video frequency programs, in order to obtain same video program content better, the interference of filtering advertisement, described step S130 can further comprise treatment step S132.
Step S132, video segment is carried out union operation according to described Word message.
To the above-mentioned stable video fragment that obtains, if the last period video segment concluding time and start time of back one section video segment at interval less than a certain threshold value (as 5S, 30S, 60S......), and, the two has identical stable Word message, then the two is merged as same video content.
Can be with the peculiar information of the stable Word message in every section division rear video program as this video frequency program.After obtaining the division and stable Word message of video content, can be used for video recorded subsequent processes such as the tissue of video and video analysis.
In another embodiment of the present invention, behind step S130, can further include step S140, described video content classified according to Word message.
A kind of implementation of described video content being classified according to Word message is:
Step S141, determine the key word of video content.
Word message in above-mentioned each video segment division that obtains can therefrom extract the relevant information of video content classification, with the key word of these information as this video content.The generic of key word comprises that TV station's title, programm name, program duration are to use other key word of program, such as match titles such as competing teams title, NBA in the sport category match.A kind of method of determining key word is, enumerate out all TV station's titles, all television programme titles are if the described Word message that extracts comprises above-mentioned TV station title or television programme title, then with its key word as TV station's title or television programme title.Further can be according to its key word classification that belongs to of location determination of literal appearance.As the programm name candidate, and the literal that the screen upper left side is occurred is as the title candidate of TV station such as, the literal that will occur on the screen left side and the right.
Step S142, determine the classification of video content.
General TV programme can be divided into sport category, economic class, news category, amusement class, TV play, film, educational, other class etc., described sorting technique also can have alternate manner, such as, increase or reduce described classification, perhaps adopt other sorting technique such as being divided into state's program map and external program.
Step S143, set the exclusive key word of each classification, and whether comprise described exclusive key word according to the key word of video content video content is classified.
At first, can be the exclusive key word of program settings programm name.Because the program of part TV station all belongs to a type, such as five in central authorities, Beijing Liu Tai is typical sports cast TV station, can be with central authorities 5, Beijing 6 as the exclusive key word of sport category program, and central authorities' 2 exclusive key words as economic class program, central authorities' 6 exclusive key words as film class program, central authorities' 10 exclusive key words as educational program.
Secondly, other exclusive key word can also be set, such as, for the exclusive key word of sport category program settings is NBA, Division A League Football Matches of Italy, rocket, calf.And with news hookup, or news 30' is as the exclusive key word of news category program.Simultaneously, the TV play name can be referred to as the exclusive key word of TV play, with the exclusive key word of movie name, with the exclusive key word of movie name as film as film.Above-mentioned exclusive key word can be set according to the situation of actual programs, and the present invention is not as qualification.
Then, determine the type of this video content according to the exclusive key word that whether extracts certain type in each video content.
Further, can also comprise step S144, the non-exclusive key word of setting.
Be the non-exclusive key message of each type program settings, such as the non-exclusive key message of setting TV play be length between 20-50 minute, and last literal comprises numerals such as, two, 29 or 1,2,29 in the Word message.The program that does not comprise the exclusive key word of any classification is divided into that maximum classification of its non-exclusive key word that comprises.Described non-exclusive key word can be set and change according to the situation of actual programs.
More than describe the method for the preferred embodiment of the present invention in detail to video content is classified; it will be appreciated by those skilled in the art that; described method to the video content classification is not restricted to above disclosed kind, and other method is certainly also within protection scope of the present invention.
In another embodiment of the present invention, after described step S140, can also comprise step S150, generate the index list of described video content according to Word message and visual classification.
A kind of implementation that generates the index list of described video content according to Word message and visual classification is:
Step S151, video content is classified.
Concrete sorting technique please refer to the description of front, does not repeat them here.
Step S152, according to the classification video content is arranged.
Such as can be according to the order of sport category, economic class, news category, amusement class, TV play, film, educational, other class to the video content arrangement of classifying.
Step S153, for generic program, arrange according to predefined procedure.
Such as, for each class, can at first arrange according to the pinyin order of programm name, what programm name was identical then can arrange according to the broadcast time order.
For TV play, can extract the numeral that is positioned at afterbody in the TV play programm name, as the sequence number of TV play, TV play of the same name is arranged according to sequence number.
Further, can also comprise step S154, be that each video content generates a representative image or video segment.
Behind program category, programm name generation index list, can extract a pair or several representative image or represent video segment to be used for showing, be convenient to user's preview simultaneously and select.A kind of simple mode can extract the mode that one or more small fragment is formed video segment according to the set time order.After the user returns, click the index of being concerned about program, promptly can learn programme content, and then the program of selecting oneself to like is watched.
More than describe the method that the embodiment of the invention preferably generates index list in detail; it will be appreciated by those skilled in the art that; the method of described generation index list is not restricted to above disclosed kind, and other method that generates index list is certainly also within protection scope of the present invention.
Further, in another embodiment of the present invention, after described step S140, before the step S150, can also comprise step S160, similar video is mated, the repeated in the similar video of filtering.
Because can exist different TV stations to play the situation of same TV programme, therefore may have the repeated content.For further conserve memory resource, more excellent mode is that similar video is mated, the repeated in the similar video of filtering.
Describe in detail below and similar video is mated a kind of implementation of the repeated in the similar video of filtering.Earlier similar video is carried out following judgement in twos, if the two programm name is identical, then carry out the video segment coupling, a kind of optimal way is as follows:
Compare two video lengths, several images of picked at random from short video, these images are looked for matching image in long video,, can preferably adopt based on histogrammic matching process for pick up speed, to the image that from short-sighted frequency, extracts at random, extract its histogram, according to fixed intervals, abstract image in long video, and the extraction image histogram, image histogram is relatively in image histogram and the short-sighted frequency in will long video.If the two distance less than a certain threshold value, determines that then the two is similar, continue near this long video image, to seek, mate most up to finding.With the position of this short-sighted frequency image and long video image, with the two alignment, and analyze frame by frame, whether judge the histogram distance less than a certain threshold value, if less than, determine that then the two corresponding section is identical.If the programm name difference, perhaps video segment does not match, then the two difference.If identical then delete one of them, thus filter out the video segment of repetition, saved storage space.
Further, in another embodiment of the present invention, can also comprise step S170, record corresponding video content according to the key message of user's setting.
Step S171, determine the key message classification of video content.
Word message in above-mentioned each video segment division that obtains can therefrom extract the relevant information of video content, these information is convenient to the user as the key word of this video content sets the select target video frequency program.
The generic of key word can include but not limited to program category, TV station's title, programm name, program duration, program category and out of Memory.TV station's title, programm name can refer step 201 methods.And out of Memory can comprise competing teams title in the sport category match, NBA etc. the title of competing.
Step S172, user set the key message of program recording.
Above-mentioned key message can comprise one or more in program category, TV station's title, programm name and the out of Memory, also can comprise other key message.
Step S173, the key message that is provided with according to the user are recorded corresponding video content.
At first, program is analyzed, extracted the stabilized zone, key message is extracted in literal identification, and video is divided, and extracts the key message of dividing program, sets if key message meets the user, then video content is preserved.Want to record the very 6+1 of central authorities 2 such as, user, then set TV station on the operation program and be defined as central authorities 2, programm name is unusual 6+1.If comprise central authorities 2 and the unusual key word of 6+1 in the then current ready-portioned program fragment that obtains, then preserve this video content.The user wants to record Division A League Football Matches of Italy, England Premier League or other TV programme and then sets correspondent keyword, and preserves the video content comprise corresponding key word and get final product.
The present invention goes out Word message from the stable information Recognition of TV programme, according to Word message TV programme is carried out classification and storage, thereby makes things convenient for the user to search interested video frequency program from the video frequency program of recording; Further, the present invention can also record the user's interest TV programme according to Word message, thereby realizes the robotization of television program record, need not artificial participation, and better user experience is provided.
With reference to Fig. 5, show the composition structural drawing of device first embodiment of a kind of processing video programs of the present invention.The device 500 of described processing video programs comprises analytic unit 510, recognition unit 520, acquiring unit 530.
Described analytic unit 510 is used for analysis video, obtains the stable video information in the video frequency program.
Described recognition unit 520, be used for utilizing character recognition method to extract the Word message of described stable video information.
Acquiring unit 530, be used for video frequency program being divided, obtain the video content of same program correspondence according to described Word message.
The device 500 of described processing video programs also comprises:
Taxon is used for according to Word message described video content being classified.
The device 500 of described processing video programs also comprises:
The filtering module is used for similar video is mated, the repeated in the similar video of filtering.
The device 500 of described processing video programs also comprises:
The index generation unit is used for generating according to Word message and visual classification the index list of described video content.
The device 500 of described processing video programs also comprises:
Recording elements is used for recording corresponding video content according to the key message that the user is provided with.
Device embodiment of the present invention is corresponding with described method embodiment, the course of work of the device of described processing video programs and principle of work are described in detail in method embodiment part, do not repeat them here the device of described processing video programs and respectively form the course of work of module and the description of principle of work reference method embodiment appropriate section gets final product.
One of ordinary skill in the art will appreciate that; in each method embodiment of the present invention; the sequence number of described each step can not be used to limit the sequencing of each step; for those of ordinary skills; under the prerequisite of not paying creative work, the priority of each step is changed also within protection scope of the present invention.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. the method for a processing video programs is characterized in that, comprising:
Analysis video obtains the stable video information in the video frequency program;
Utilize character recognition method to extract Word message in the described stable video information;
According to described Word message video frequency program is divided, obtained the video content of same program correspondence.
2. the method for processing video programs according to claim 1 is characterized in that, described analysis video, and the stable video information of obtaining in the video frequency program comprises:
Be provided with and stablize the information search zone;
Whether change according to image information in the described stable information search zone and to determine stable video information.
3. the method for processing video programs according to claim 2 is characterized in that, described whether changing according to image information in the described stable information search zone determines that stable video information is specially:
Brightness according to image pixel in the described stable information search zone changes definite stable video information.
4. the method for processing video programs according to claim 3 is characterized in that, described brightness according to image pixel in the described stable information search zone changes determines that stable video information comprises:
The image pixel of stablizing in the information search zone is carried out initialization;
Calculate the variance of described stable information search zone interior pixel point brightness
According to described σ
2Determine stable video information, wherein Y
s=Y
s+ y (w, h), Y
2s=Y
2s+ y (w, h)
2, (w h) is pixel (w, the brightness of image of h) locating, Y to y
sFor pixel image intensity and, be initialized as zero, Y
2sBe the pixel image intensity quadratic sum, be initialized as zero, accumulation frame number T=T+1, accumulation frame number T is initialized as zero.
5. the method for processing video programs according to claim 3 is characterized in that, described brightness according to image pixel in the described stable information search zone changes determines that stable video information comprises:
The pixel of stablizing in the information search zone is carried out initialization;
The degree of stability of calculating pixel also determines to stablize pixel according to degree of stability;
Determine stable video information according to described stable pixel.
6. the method for processing video programs according to claim 5 is characterized in that, according to the degree of stability of following formula calculating pixel:
Wherein, y
tBe brightness, y
iThe brightness of this pixel during for moment t, K () is a kernel function, N is the positive integer greater than 1.
7. according to the method for each described processing video programs of claim 1 to 6, it is characterized in that, also comprise:
According to Word message described video content is classified.
8. the method for processing video programs according to claim 7 is characterized in that, also comprises after according to Word message described video content being classified:
Similar video is mated the repeated in the similar video of filtering.
9. the method for processing video programs according to claim 8 is characterized in that, described similar video is mated, and the repeated in the similar video of filtering is specially:
From first video content of similar video, randomly draw first image, in second video content of similar video, find second image with described first images match;
Analyze frame by frame after with the position of the position of described first image and described second image described first video content and the alignment of described second video content, whether the corresponding section of judging described first image and described second image is identical, if identical then delete described first video content or described second video content.
10. the method for processing video programs according to claim 7 is characterized in that, also comprises:
Generate the index list of described video content according to Word message and visual classification.
11. the method according to each described processing video programs of claim 1 to 6 is characterized in that, also comprises:
Record corresponding video content according to the key message that the user is provided with.
12. the device of a processing video programs is characterized in that, comprising:
Analytic unit is used for analysis video, obtains the stable video information in the video frequency program;
Recognition unit is used for utilizing character recognition method to extract the Word message of described stable video information;
Acquiring unit is used for according to described Word message video frequency program being divided, and obtains the video content of same program correspondence.
13. the device of processing video programs according to claim 12 is characterized in that, also comprises:
Taxon is used for according to Word message described video content being classified.
14. the device of processing video programs according to claim 13 is characterized in that, also comprises:
The filtering module is used for similar video is mated, the repeated in the similar video of filtering.
15. the device of processing video programs according to claim 13 is characterized in that, also comprises:
The index generation unit is used for generating according to Word message and visual classification the index list of described video content.
16. the device according to each described processing video programs of claim 12 to 15 is characterized in that, also comprises:
Recording elements is used for recording corresponding video content according to the key message that the user is provided with.
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