CN103929637B - A kind of video comparison means and comparative approach thereof - Google Patents
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Abstract
The invention provides a kind of video comparison means, comprising: video reception module, for receiving the video file several to be compared of input; Decapsulation module, for carrying out decapsulation to described several video file to be compared, thus resolves to several sequence of frames of video and several audio frame sequence by described several video file to be compared; Frame type judge module, for judging the frame type of each frame in described several sequence of frames of video; Frame information read module, for reading the frame information of each frame in described several sequence of frames of video, frame picture extraction module, for extracting the corresponding frame of video of specifying respectively, generating pictures from described several sequence of frames of video; Comparative result generation module, for generating the comparative result of the difference between the described several video file to be compared of reflection.The present invention also provides a kind of frame of video comparative approach.
Description
technical field:
The present invention relates to MultiMedia Field, relate to a kind of video comparison means and comparative approach thereof particularly, especially a kind of comparison means of the designated frame to two videos before and after process and comparative approach thereof.
background technology:
For domestic consumer, video be used to watch, and for specialty Video processing personnel viewing be can not meet demand far away.The Video processing personnel of specialty, after corresponding video having been carried out to process, need the video after to process to carry out quality evaluation.Under many circumstances, the video before Video processing personnel need to contrast process and after process.Such as, each video may occur unintelligible after encoding and decoding, differs greatly with original video image, the video before they need to go to contrast process one by one with eyes and after process.
But, if the video before going to contrast process one by one with eyes and after process, not only need a large amount of time and efforts, and inefficiency.
summary of the invention:
In order to solve the problems of the technologies described above, the invention provides a kind of video comparison means, comprising: video reception module, for receiving the video file several to be compared of input; Decapsulation module, for carrying out decapsulation to described several video file to be compared, thus resolves to several sequence of frames of video and several audio frame sequence by described several video file to be compared; Frame type judge module, for judging the frame type of each frame in described several sequence of frames of video; Frame information read module, for reading the frame information of each frame in described several sequence of frames of video, frame picture extraction module, for extracting the corresponding frame of video of specifying respectively, generating pictures from described several sequence of frames of video; Comparative result generation module, for generating the comparative result of the difference between the described several video file to be compared of reflection.
Preferably, above-mentioned video comparison means, also comprises: coded format judge module, for judging the coded format of described several sequence of frames of video; Video decoding module, when the coded format that described coded format judge module judges described several sequence of frames of video is not H264 coded format, decodes to described several sequence of frames of video, obtains the video data of several RAW form; Wherein, described frame information read module reads the frame information of each frame in the video data of described several RAW form.
Preferably, above-mentioned video comparison means, also comprises: memory module, for storing described frame type, described frame information and described picture.
Preferably, above-mentioned memory module also stores the encapsulation format of described video file, the coded format of described sequence of frames of video, described sequence of frames of video and described audio frame sequence; Described video comparison means also comprises package module, the encapsulation format of the described video file that described package module can store according to described memory module, described several sequence of frames of video and described several audio frame sequence, be reduced to described video file by described several sequence of frames of video and described several audio frame sequence.
Preferably, above-mentioned comparative result generation module generates described comparative result according to described frame type, described frame information and described picture.
Preferably, above-mentioned comparative result comprises frame information documents and designated frame picture file.
Preferably, user can specify by specifying the corresponding frame number in the corresponding time point in described several sequence of frames of video or described several sequence of frames of video the frame needing contrast.
Preferably, above-mentioned frame information is frame length information and timestamp information.
Another aspect of the present invention additionally provides a kind of video comparative approach, comprising: video reception step, receives the video file several to be compared of input; Decapsulation step, carries out decapsulation to described several video file to be compared, thus described several video file to be compared is resolved to several sequence of frames of video and several audio frame sequence; Frame type determining step, judges the frame type of each frame in described several sequence of frames of video; Frame information read step, reads the frame information of each frame in described several sequence of frames of video, and frame picture extraction step extracts the corresponding frame of video of specifying, generating pictures respectively from described several sequence of frames of video;
Comparative result generation step, generates the comparative result of the difference between the described several video file to be compared of reflection.
Preferably, above-mentioned video comparative approach, also comprises: coded format determining step, judges the coded format of described several sequence of frames of video; Video decoding step, when the coded format that described coded format judge module judges described several sequence of frames of video is not H264 coded format, decodes to described several sequence of frames of video, obtains the video data of several RAW form; Wherein, in described frame information read step, read the frame information of each frame in the video data of described several RAW form.
Preferably, above-mentioned video comparative approach, also comprises: storing step, stores described frame type, described frame information and described picture.
Preferably, above-mentioned storing step also stores the encapsulation format of described video file, the coded format of described sequence of frames of video, described sequence of frames of video and described audio frame sequence; Described video comparative approach also comprises encapsulation step, according to the encapsulation format of the described video file stored in described storing step, described several sequence of frames of video and described several audio frame sequence, described several sequence of frames of video and described several audio frame sequence can be reduced to described video file.
Preferably, in described comparative result generation step, generate described comparative result according to described frame type, described frame information and described picture.
Preferably, above-mentioned comparative result comprises frame information documents and designated frame picture file.
Preferably, user can specify by specifying the corresponding frame number in the corresponding time point in described several sequence of frames of video or described several sequence of frames of video the frame needing contrast.
Preferably, above-mentioned frame information is frame length information and timestamp information.
By comparison means and the method for video provided by the present invention, Video processing personnel just can find out the difference of video before and after process easily, and can find the problem place processing rear video easily.Therefore, such video comparison means and method is utilized can to improve the production efficiency of process video.
accompanying drawing illustrates:
Fig. 1 is the structured flowchart of the video comparison means that embodiment of the present invention relates to;
Fig. 2 is the structured flowchart of the decapsulation module 2 of the video comparison means that embodiment of the present invention relates to;
Fig. 3 is the structured flowchart of the video data decoding module 5 of the video comparison means that embodiment of the present invention relates to;
Fig. 4 is the structured flowchart of the video encapsulation module 11 of the video comparison means that embodiment of the present invention relates to;
Fig. 5 is the flow chart of the video comparison means that embodiment of the present invention relates to;
The schematic diagram of the frame information documents that the comparative result generation module 9 of the video comparison means that Fig. 6 relates to for embodiment of the present invention is shown.
embodiment:
Illustrated embodiment sets forth this invention with reference to the accompanying drawings below.Video comparison means involved by embodiment of the present invention contrasts according to the designated frame of the requirement of user to two videos before and after process.
Fig. 1 shows the structured flowchart of the video comparison means that embodiment of the present invention relates to.As shown in Figure 1, above-mentioned video comparison means comprises video reception module 1, decapsulation module 2, coded format judge module 3, frame type judge module 4, Video decoding module 5, frame information read module 6, frame picture extraction module 7, memory module 8, comparative result generation module 9, package module 11 and data/address bus 10.Above-mentioned video reception module 1, decapsulation module 2, coded format judge module 3, frame type judge module 4, Video decoding module 5, frame information read module 6, frame picture extraction module 7, memory module 8, comparative result generation module 9 are connected by above-mentioned data/address bus 10 with package module 11.
Above-mentioned video reception module 1 is for receiving the different video data needing to carry out contrasting, and one of them video can be video data before treatment, and another video can for having carried out the video data after processing to this video data before treatment.Above-mentioned decapsulation module 2 carries out decapsulation for the video data after the video data above-mentioned before treatment that receives above-mentioned video reception module 1 and process.In above-mentioned decapsulation process, video data after above-mentioned video data before treatment and process, according to the corresponding file format of the video data after above-mentioned video data before treatment and process, is resolved to corresponding sequence of frames of video and audio frame sequence by above-mentioned decapsulation module 2 separately.Above-mentioned coded format judge module 3 judges for the coded format of the sequence of frames of video to the video data after resolved the coded format of sequence of frames of video of video data above-mentioned before treatment of rear acquisition and above-mentioned process by above-mentioned decapsulation module 2, determines that the coded format of the sequence of frames of video of the video data after the coded format of the sequence of frames of video of above-mentioned video data before treatment and above-mentioned process is H264 coded format or other video code models (i.e. non-H264 coded format).Above-mentioned frame type judge module 4 is for judging the frame type of received video data.Wherein, if above-mentioned coded format judge module 3 judges that the coded format of the sequence of frames of video of the video data after the coded format of the sequence of frames of video of above-mentioned video data before treatment and above-mentioned process is above-mentioned H264 coded format, then above-mentioned frame type judge module 4 judges the frame type (I frame, B frame, P frame) of each frame, and the frame type of each frame above-mentioned is stored in above-mentioned memory module 8.Above-mentioned Video decoding module 5 is for decoding to the video data of other video code models.In above-mentioned decode procedure, the sequence of frames of video of above-mentioned Video decoding module 5 to other video code models above-mentioned is decoded, and the frame of video in the sequence of frames of video of other video code models above-mentioned is reduced to the video data of RAW form.
Above-mentioned frame information read module 6 is for the frame information (such as timestamp, frame length) of each frame in reading video data.Wherein, when the video data that above-mentioned frame information read module 6 receives is the sequence of frames of video of H264 coded format, above-mentioned frame information read module 6 reads the frame information (timestamp, frame length) of each frame of the sequence of frames of video of above-mentioned H264 form according to the frame type of each frame of the sequence of frames of video of above-mentioned H264 coded format.When the video data that above-mentioned frame information read module 6 receives is the video data of RAW form, above-mentioned frame information read module 6 directly reads the frame information of each frame of the video data of above-mentioned RAW form.
Above-mentioned frame picture extraction module 7 extracts the frame of video of specifying respectively according to the instruction of user from the video data after above-mentioned video data before treatment and above-mentioned process, generates corresponding picture.Preferably, above-mentioned frame of video picture is JPG picture.Above-mentioned memory module 8 is for storing relevant data.Above-mentioned comparative result generation module 9 is according to the instruction of user, generate corresponding frame comparative result specified in the video data after frame specified in above-mentioned video data before treatment and above-mentioned process, and show in the mode of form or image in client, the instruction of wherein said user is preferably the time point of designated or the frame number of video.Preferably, above-mentioned comparative result generation module 9, according to the instruction of user, based on frame information and the frame type of above-mentioned picture, the frame of video corresponding with above-mentioned picture, generates above-mentioned comparative result.
Above-mentioned package module 11 is for encapsulating the sequence of frames of video of the sequence of frames of video or other coded formats above-mentioned of stating H264 form and corresponding audio frame sequence with the encapsulation format that the audio-video document after above-mentioned audio-video document before treatment and above-mentioned process is original.
Fig. 2 is the structured flowchart of the decapsulation module 2 of the video comparison means that embodiment of the present invention relates to.As shown in Figure 2, above-mentioned decapsulation module 2 comprises video file format judging unit 21, decapsulation selected cell 22 and several decapsulation unit 23,24,25 ...Wherein, above-mentioned several decapsulation unit 23,24,25 ... there is different forms, different file formats can be corresponded to and carry out decapsulation.Above-mentioned video file format judging unit 21 can judge the file format of the video received from above-mentioned video reception module 1, above-mentioned decapsulation selected cell 22 can according to the judged result of above-mentioned video file format judging unit 21 (i.e. the encapsulation format of video file) from decapsulation unit 23, 24, 25 ... the corresponding decapsulation unit of middle selection carries out decapsulation to above-mentioned video file, above-mentioned corresponding decapsulation unit (i.e. above-mentioned decapsulation unit 23, 24, 25 ... one of in) be corresponding sequence of frames of video and audio frame sequence by received above-mentioned video file deblocking, and the encapsulation format of the sequence of frames of video after decapsulation and audio frame sequence and former video file is stored in above-mentioned memory module 8.
Fig. 3 is the structured flowchart of the video data decoding module 5 of the video comparison means that embodiment of the present invention relates to.As shown in Figure 3, above-mentioned Video decoding module 5 comprises decoder selected cell 51 and several decoder 52,53,54 ...Wherein, above-mentioned several decoder 52,53,54 ... different coded formats can be decoded.Above-mentioned decoder selected cell 51 can receive the sequence of frames of video of other video code models above-mentioned from above-mentioned coded format judge module 3, and its corresponding coded format is read from above-mentioned memory module 8, and according to the coded format of above-mentioned sequence of frames of video from decoder 52, 53, 54 ... the corresponding decoder of middle selection, above-mentioned corresponding decoder (i.e. above-mentioned decoder 52, 53, 54 ... one of in) sequence of frames of video of read other video code models above-mentioned is decoded, frame of video in the sequence of frames of video of other video code models above-mentioned is reduced to the video data of RAW form, and the video data of above-mentioned RAW form is stored in above-mentioned memory module 8.
Fig. 4 is the structured flowchart of the package module 11 of the video comparison means that embodiment of the present invention relates to.As shown in Figure 4, above-mentioned package module 11 comprises encapsulation format selected cell 111 and several encapsulation unit 112,113,114 ...Wherein, above-mentioned several encapsulation unit 112,113,114 ... have different encapsulation format, the requirement that can correspond to different encapsulation format encapsulates.Upper above-mentioned encapsulation format selected cell 111 can read the encapsulation format of above-mentioned sequence of frames of video and corresponding audio frame sequence and its original audio-video document from above-mentioned memory module 8, the audio frame sequence selecting corresponding encapsulation unit corresponding to above-mentioned sequence of frames of video to above-mentioned sequence of frames of video encapsulates with the encapsulation format that the video data after above-mentioned video data before treatment and above-mentioned process is original, and by the audio-video document after encapsulation stored in above-mentioned memory module 8.
Fig. 5 is the frame of video contrast flow chart of the video comparison means that embodiment of the present invention relates to.Below, with reference to Fig. 5, the processing procedure contrasted in frame of video of the present embodiment is described.
User inputs two video files to be compared (video format common at present is all supported), and one of them can be video file before treatment, and another can be the video file after processing this video file before treatment.Above-mentioned video reception module 1 receives two video files to be compared of above-mentioned user input, and it is transported to above-mentioned decapsulation module 2(step S1).
Above-mentioned decapsulation module 2 carries out decapsulation to above-mentioned two video files to be compared respectively, respectively above-mentioned two video files to be compared are resolved to the sequence of frames of video after the sequence of frames of video before treatment corresponding with video file before treatment and audio frame sequence and the process corresponding with the video file after process and audio frame sequence, and by the original encapsulation format of two video files to be compared, sequence of frames of video after above-mentioned sequence of frames of video before treatment and audio frame sequence and above-mentioned process and audio frame sequence are stored in above-mentioned memory module 8 (step S2).
After above-mentioned coded format judge module 3 reads the sequence of frames of video after above-mentioned sequence of frames of video before treatment and above-mentioned process respectively from above-mentioned memory module 8, judge the coded format of the sequence of frames of video after the coded format of described sequence of frames of video before treatment and above-mentioned process, the coded format of the sequence of frames of video after the coded format of above-mentioned sequence of frames of video before treatment and above-mentioned process is stored in above-mentioned memory module 8 (step S3) respectively.If the coded format of the sequence of frames of video after the coded format of above-mentioned sequence of frames of video before treatment and above-mentioned process is H264 form (step S3: yes), then by above-mentioned frame type judge module 4, the sequence of frames of video after the sequence of frames of video before treatment of above-mentioned H264 form and process is carried out to the judgement (step S4) of frame type; If the coded format of the sequence of frames of video after the coded format of above-mentioned sequence of frames of video before treatment and above-mentioned process is not H264 form (i.e. other video code models) (step S3: no), then by above-mentioned Video decoding module 5, (step S5) is decoded to the sequence of frames of video after the sequence of frames of video before treatment of other video code models above-mentioned and process.
In step s 4 which, above-mentioned frame type judge module 4 read respectively from above-mentioned memory module 8 above-mentioned H264 form sequence of frames of video before treatment and process after sequence of frames of video after, judge the frame type (I frame, B frame, P frame) of each frame in the sequence of frames of video after above-mentioned sequence of frames of video before treatment and process, and the frame type of each frame above-mentioned is stored in above-mentioned memory module 8.
In step s 5, above-mentioned Video decoding module 5 reads the sequence of frames of video after the sequence of frames of video before treatment of other video code models above-mentioned and process and corresponding coded format respectively from above-mentioned memory module 8, and selects corresponding decoder (such as decoder 52,53,54 according to the coded format of the sequence of frames of video after the sequence of frames of video before treatment of other video code models described and process ... .. one of them) decode.In above-mentioned decode procedure, the corresponding decoder of above-mentioned Video decoding module 5 is decoded to the sequence of frames of video before treatment of other video code models above-mentioned and the sequence of frames of video after processing respectively, frame of video in sequence of frames of video after the sequence of frames of video before treatment of other video code models above-mentioned and process is reduced to the video data of the RAW form after the video data of the RAW form before treatment corresponding with above-mentioned sequence of frames of video before treatment and the process corresponding with the sequence of frames of video after above-mentioned process, and the video data of the RAW form after the video data of above-mentioned RAW form before treatment and above-mentioned process is stored in above-mentioned memory module 8.
After above-mentioned frame information read module 6 reads the video data of the video data of the sequence of frames of video before treatment of above-mentioned H264 form and the sequence of frames of video after processing or above-mentioned RAW form before treatment and the RAW form after processing from above-mentioned memory module 8, frame information (the timestamp of each frame in the sequence of frames of video after the sequence of frames of video before treatment of above-mentioned H264 form and process is read according to the frame type of each frame in the sequence of frames of video after the sequence of frames of video before treatment of above-mentioned H264 form and process, frame length), or directly read the frame information of each frame in the video data of the RAW form after the video data of above-mentioned RAW form before treatment and above-mentioned process, respectively the frame information of each frame in the video data of the RAW form after the frame information of each frame in the sequence of frames of video after the sequence of frames of video before treatment of above-mentioned H264 form and process or the video data of above-mentioned RAW form before treatment and above-mentioned process is stored in above-mentioned memory module 8 (step S6) simultaneously.
According to the instruction of user, above-mentioned frame picture extraction module 7 extracts corresponding frame of video from the sequence of frames of video that above-mentioned memory module 8 stores, generate corresponding picture, and described picture is transported in above-mentioned comparative result generation module 9 (step S7), wherein said user instruction can be the time point of the video that user specifies, and also can be the frame number of the video that user specifies.
The picture that above-mentioned comparative result generation module 9 generates based on above-mentioned frame picture extraction module 7, frame information and the frame type of the frame of video corresponding with above-mentioned picture is read from above-mentioned memory module 8, generation comparative result is reported, and show comparative result report (step S8) in client in the mode of form and/or image according to the instruction of user, wherein said user instruction can be the time point of the video that user specifies, also can be the frame number of the video that user specifies, and above-mentioned comparative result can comprise frame information documents and designated frame picture file.
In step s 9, the encapsulation format selected cell 111 of above-mentioned packaging system 11 reads corresponding sequence of frames of video and audio frame sequence and corresponding former encapsulation format thereof from above-mentioned memory module 8, above-mentioned corresponding sequence of frames of video and audio frame sequence are encapsulated, recovers former audio-video document.
The schematic diagram of the comparative result that the comparative result generation module 9 of the video comparison means that Fig. 6 relates to for embodiment of the present invention generates.As shown in Figure 6, the comparative result utilizing above-mentioned comparative result generation module 9 to show very clearly can find out the difference of the designated frame of two videos, thus contrasts.Such as, video 1 shown in Fig. 6 can be above-mentioned video before treatment, video 2 can be the video after above-mentioned process, by the frame length of more corresponding frame of video (frame number is identical), timestamp (PTS/DTS) and frame type, Video processing personnel just can find out the difference of video before and after process easily, and can find the problem place processing rear video.
In present embodiment, two video files before and after process are contrasted, two videos before and after user's input processing, above-mentioned video comparison means can process two videos before and after above-mentioned process respectively, read the frame information of each frame of two videos before and after above-mentioned process and be stored in memory module, user can specify one or more frame needing contrast by time point or frame number, above-mentioned comparative result generation module can extract corresponding frame of video according to user instruction, read the frame information of corresponding video frame, the picture of regeneration respective frame and frame information documents, user is showed in client.The present invention is not limited to this, can contrast, also can contrast any two or more different video file the plural video file before and after process.
Embodiment described in above specification and embodiment should be understood only be not used in for illustration of the present invention and limit the scope of the invention.After having read the present invention, the amendment of those skilled in the art to various equivalents of the present invention has all fallen within the application's claims limited range.
Claims (14)
1. a video comparison means, comprising:
Video reception module, for receive input process before video file and process rear video file;
Decapsulation module, for carrying out decapsulation respectively to video file before described process and described process rear video file, thus the sequence of frames of video of video file and the sequence of frames of video of audio frame sequence and described process rear video file and audio frame sequence before video file before described process and described process rear video file being resolved to respectively described process;
Frame type judge module, for judging the frame type of each frame in the sequence of frames of video of video file and the sequence of frames of video of described process rear video file before described process;
Coded format judge module, for judging the coded format of the sequence of frames of video of video file and the sequence of frames of video of described process rear video file before described process respectively;
Video decoding module, when the coded format of the sequence of frames of video of video file before described coded format judge module judges described process and the sequence of frames of video of described process rear video file is not H264 coded format, the sequence of frames of video of video file before described process and the sequence of frames of video of described process rear video file are decoded, obtains the video data of several RAW form;
Frame information read module, for reading the frame information of each frame in the sequence of frames of video of video file and the sequence of frames of video of described process rear video file before described process,
Frame picture extraction module, for extracting the corresponding frame of video of specifying, generating pictures respectively from the sequence of frames of video of video file before described process and the sequence of frames of video of described process rear video file;
Comparative result generation module, for generating the comparative result of difference between video file and described process rear video file before the described process of reflection;
Wherein, described frame information read module reads the frame information of each frame in the video data of described several RAW form.
2. video comparison means according to claim 1, also comprises:
Memory module, for storing described frame type, described frame information and described picture.
3. video comparison means according to claim 2, is characterized in that:
Described memory module also stores the encapsulation format of video file and described process rear video file before described process, the coded format of sequence of frames of video, sequence of frames of video and audio frame sequence respectively;
Described video comparison means also comprises package module, the encapsulation format of video file and described process rear video file, sequence of frames of video and audio frame sequence before the described process that described package module can store respectively according to described memory module, be reduced to video file and described process rear video file before described process by the audio frame sequence of video file and described process rear video file before the sequence of frames of video of video file before described process and described process rear video file and described process.
4. video comparison means according to claim 1, is characterized in that:
Described comparative result generation module generates described comparative result according to described frame type, described frame information and described picture.
5. video comparison means according to claim 4, is characterized in that:
Described comparative result comprises frame information documents and designated frame picture file.
6. video comparison means according to claim 1, is characterized in that:
User can specify by the corresponding frame number in the sequence of frames of video of video file and described process rear video file before the corresponding time point in the sequence of frames of video of video file and described process rear video file before the described process of appointment or described process the frame needing contrast.
7. video comparison means according to claim 1, is characterized in that:
Described frame information is frame length information and timestamp information.
8. a video comparative approach, comprising:
Video reception step, video file and process rear video file before the process of reception input;
Decapsulation step, respectively decapsulation is carried out to video file before described process and described process rear video file, thus the sequence of frames of video of video file and the sequence of frames of video of audio frame sequence and described process rear video file and audio frame sequence before video file before described process and described process rear video file being resolved to respectively described process;
Frame type determining step, judges the frame type of each frame in the sequence of frames of video of video file and the sequence of frames of video of described process rear video file before described process;
Coded format determining step, judges the coded format of the sequence of frames of video of video file and the sequence of frames of video of described process rear video file before described process;
Video decoding step, when the coded format that described coded format judge module judges the sequence of frames of video of video file before described process and the sequence of frames of video of described process rear video file is not H264 coded format, respectively the sequence of frames of video of video file before described process and described process rear video file is decoded, obtain the video data of several RAW form;
Frame information read step, reads the frame information of each frame in the sequence of frames of video of video file and described process rear video file before described process;
Frame picture extraction step, extracts the corresponding frame of video of specifying, generating pictures respectively from the sequence of frames of video of video file before described process and described process rear video file;
Comparative result generation step, the comparative result of the difference before the described process of generation reflection between video file and described process rear video file;
Wherein, in described frame information read step, read the frame information of each frame in the video data of described several RAW form.
9. video comparative approach according to claim 8, also comprises:
Storing step, stores described frame type, described frame information and described picture.
10. video comparative approach according to claim 9, is characterized in that:
Described storing step also stores the encapsulation format of video file and described process rear video file before described process, the coded format of sequence of frames of video, sequence of frames of video and audio frame sequence;
Described video comparative approach also comprises encapsulation step, can according to video file before the described process stored in described storing step and the encapsulation format of described process rear video file, several sequence of frames of video and several audio frame sequence, the audio frame sequence of video file and described process rear video file before the sequence of frames of video of video file before described process and described process rear video file and described process is reduced to video file and described process rear video file before described process.
11. video comparative approach according to claim 8, is characterized in that:
In described comparative result generation step, generate described comparative result according to described frame type, described frame information and described picture.
12. video comparative approach according to claim 11, is characterized in that:
Described comparative result comprises frame information documents and designated frame picture file.
13. video comparative approach according to claim 8, is characterized in that:
User can specify by the corresponding frame number in the sequence of frames of video of video file and described process rear video file before the corresponding time point in the sequence of frames of video of video file and described process rear video file before the described process of appointment or described process the frame needing contrast.
14. video comparative approach according to claim 8, is characterized in that:
Described frame information is frame length information and timestamp information.
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| CN108933935B (en) * | 2017-05-22 | 2021-05-07 | 中兴通讯股份有限公司 | Detection method and device of video communication system, storage medium and computer equipment |
| CN112541390B (en) * | 2020-10-30 | 2023-04-25 | 四川天翼网络股份有限公司 | Frame extraction dynamic scheduling method and system for examination video violation analysis |
| CN113115112B (en) * | 2021-06-16 | 2021-09-21 | 上海齐感电子信息科技有限公司 | Verification platform and verification method |
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