CN101789029B - Analysis method, device and database of video images - Google Patents
Analysis method, device and database of video images Download PDFInfo
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Abstract
The embodiment of the invention discloses an analysis method, a device and a database of video images, wherein the method comprises the following steps: extracting video frames to be analyzed from a data source of the video images when the condition data used for image analysis is stored in the database, wherein the condition data comprises parameter data corresponding to program names and image analysis methods; extracting condition data matched with the video frames to be analyzed from the database; and carrying out image analysis on the obtained video frames by using parameter data in the extracted condition data. According to the embodiment of the invention, the image analysis effect can be improved, and various application requirements of users can be met.
Description
Technical field
The application relates to multi-media processing technical field, particularly relates to a kind of analytical method of video image, device and database.
Background technology
In 20 end of the centurys, along with the development of the technology such as network communication, data compression and massive store, the data volume of digital information increases fast.Wherein, the most outstanding example is digital television program, and the data volume of a year just can up to a few terabyte.In the face of the digital television program of magnanimity, from the various application demands of user, in order to realize TV station, digital television program is catalogued on the one hand, so that further management or filing; Also in order to realize televiewer, digital television program being searched on the other hand, so that quick lock in meets the digital television program that spectators require, needing the analysis video image in digital television program being carried out to video image.
So-called graphical analysis, generally refers to and utilize Mathematical Modeling, and combining image treatment technology analyzes low-level image feature and the superstructure of video image, thus extraction has necessarily intelligent information.Mainly comprise the analysis to picture material, explanation and identify.Graphical analysis comprises polytype, wherein, in the graphical analysis of image content-based, mainly includes picture structure analysis, recognition of face, caption text identification and special scenes and analyzes Four types.
In various image analysis process, in order to complete the analyzing and processing to image, need some Image Processing parameter, these Image Processing parameter constitute the supplemental characteristic of image analysis process.Such as, in picture structure is analyzed, supplemental characteristic comprises picture segmented areas position data, segmented areas background colour scope, zone boundary type and color etc.In recognition of face, supplemental characteristic comprises face coupling training result data file, face characteristic picture and similarity dimensions etc.
In the prior art, the various supplemental characteristics for graphical analysis are fixedly installed in executable file.For some digital television programs, once supplemental characteristic is arranged in executable file, just cannot change again.But, in actual scene, digital television program can often change form, if do not changed adaptively along with the change of digital television program for the supplemental characteristic of graphical analysis, and then the mistake of image analysis result can be caused, finally affect image analysis effect, the various application demands of user cannot be met.
Summary of the invention
In order to solve the problems of the technologies described above, the embodiment of the present application provides a kind of analytical method and device of video image, to improve image analysis effect, meets the various application demands of user.
The embodiment of the present application discloses following technical scheme:
A kind of analytical method of video image, comprise: after the condition data being used for graphical analysis is stored in database, from the data source of video image, extract frame of video to be analyzed, described condition data comprises the supplemental characteristic corresponding with programm name and graphical analysis mode; The condition data matched with described frame of video to be analyzed is extracted from described database; The supplemental characteristic in the condition data extracted is utilized to carry out graphical analysis to the frame of video to be analyzed extracted.
Preferably, the described condition data matched with described frame of video to be analyzed that extracts from database comprises: the programm name obtaining program belonging to described frame of video to be analyzed and the graphical analysis mode analyzed described frame of video to be analyzed; The condition data that the programm name of Search and acquirement is corresponding with graphical analysis mode from database.
Preferably, describedly from the data source of video image, extract frame of video to be analyzed comprise: from the data source of video image, obtain the frame of video being used for graphical analysis; From the frame of video obtained, extract key frame according to shot segmentation technique, described key frame is frame of video to be analyzed.
Preferably, the data source of described video image comprises: the real-time stream in the video file of storage or digital television program.
Preferably, described method also comprises: after the executable file being used for graphical analysis is stored in database, from database, extract described executable file, carry out graphical analysis according to the executable file extracted to the frame of video to be analyzed obtained, described executable file comprises condition data.
A kind of analytical equipment of video image, comprise: video frame extraction unit to be analyzed, for after the condition data being used for graphical analysis is stored in database, from the data source of video image, extract frame of video to be analyzed, described condition data comprises the supplemental characteristic corresponding with programm name and graphical analysis mode; Condition data extraction unit, for extracting the condition data matched with described frame of video to be analyzed from described database; Image analyzing unit, carries out graphical analysis for utilizing the supplemental characteristic in the condition data of extraction to the frame of video to be analyzed extracted.
Preferably, described condition data extraction unit comprises: first obtains subelement, for the programm name that obtains program belonging to described frame of video to be analyzed and the graphical analysis mode analyzed described frame of video to be analyzed; Search subelement, for the condition data that the programm name of Search and acquirement from database is corresponding with graphical analysis mode.
Preferably, described video frame extraction unit to be analyzed comprises: second obtains subelement, for obtaining the frame of video being used for graphical analysis from the data source of video image; Key-frame extraction subelement, for extracting key frame according to shot segmentation technique from the frame of video obtained, described key frame is frame of video to be analyzed.
Preferably, the data source of described video image comprises: the real-time stream in the video file of storage or digital television program.
Preferably, described device also comprises: executable file extraction unit, for after the executable file being used for graphical analysis is stored in database, described executable file is extracted from database, carry out graphical analysis according to the executable file extracted to the frame of video to be analyzed obtained, described executable file comprises condition data.
A kind of database, comprise at least one condition data for graphical analysis, described condition data comprises the supplemental characteristic corresponding with programm name and graphical analysis mode.
As can be seen from the above-described embodiment, after the condition data being used for graphical analysis is stored in database, make the supplemental characteristic in condition data independent from the whole handling process of graphical analysis.For analytical system, when the analyzing and processing flow process of analytical system carries out image, from database, directly call required condition data.For database, this database can accept the manual intervention that user carries out according to the use needs of self, dynamically updating of fulfillment database.As, user can according to the supplemental characteristic in each condition data in concrete user demand Update Table storehouse, so that analytical system can carry out different image analysis process based on different supplemental characteristics.
Accompanying drawing explanation
Embodiment or technical scheme of the prior art is asked in order to be illustrated more clearly in this, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of an embodiment of the analytical method of a kind of video image of the application;
Fig. 2 is the scene schematic diagram of a kind of carries out image analytic process of the application;
Fig. 3 is the flow chart of another embodiment of the analytical method of a kind of video image of the application;
Fig. 4 is the structure chart of an embodiment of the analytical equipment of a kind of video image of the application;
Fig. 5 is the structure chart of another embodiment of the analytical equipment of a kind of video image of the application;
Fig. 6 is the structure chart of another embodiment of the analytical equipment of a kind of video image of the application;
Fig. 7 is the structural representation of an embodiment of a kind of database of the application.
Embodiment
For enabling above-mentioned purpose, the feature and advantage of the application more become apparent, below in conjunction with accompanying drawing, the embodiment of the present application is described in detail.
Embodiment one
Refer to Fig. 1, it is the flow chart of an embodiment of the analytical method of a kind of video image of the application, and the method comprises the following steps:
Step 101: after the condition data being used for graphical analysis is stored in database, extracts frame of video to be analyzed from the data source of video image, and described condition data comprises the supplemental characteristic corresponding with programm name and graphical analysis mode;
In the embodiment of the application, need the condition data being used for graphical analysis to be stored in a database in advance, wherein, the condition data for graphical analysis comprises the supplemental characteristic corresponding with programm name and graphical analysis mode.Such as, in a condition data, include programm name " news hookup ", graphical analysis mode for the video image in " news hookup ": recognition of face, and the supplemental characteristic needed in face recognition process, as, supplemental characteristic at least can comprise face coupling training result data file, face characteristic picture and similarity dimensions etc.After condition data is stored in database, follow-up when carrying out graphical analysis to frame of video to be analyzed, corresponding condition data can be called from database, utilize the supplemental characteristic in condition data to carry out graphical analysis to frame of video to be analyzed.
It should be noted that, in various image analysis process, in order to complete the analyzing and processing to image, need some Image Processing parameter, these Image Processing parameter constitute the supplemental characteristic of image analysis process.In the graphical analysis of image content-based, mainly include picture structure analysis, recognition of face, caption text identification and special scenes and analyze Four types.Wherein, in picture structure is analyzed, supplemental characteristic at least comprises picture segmented areas position data, segmented areas background colour scope, zone boundary type and color.In recognition of face, supplemental characteristic at least comprises face coupling training result data file, face characteristic picture and similarity dimensions.In caption text identification, supplemental characteristic at least comprises Title area position data, Title area background colour scope, Title area color histogram threshold values and caption text type.In special scenes is analyzed, supplemental characteristic can change according to the change of particular analysis mode, wherein, supplemental characteristic at least comprise some position range data, normal pictures and graphical analysis time the threshold values that uses.Certainly, when adopting other graphical analysis mode, supplemental characteristic also can be different.The embodiment of the present application does not limit adopted graphical analysis mode, does not also limit the type of supplemental characteristic meanwhile.
Wherein, describedly from the data source of video image, extract frame of video to be analyzed comprise: from the data source of video image, obtain the frame of video being used for graphical analysis; From the frame of video obtained, extract key frame according to shot segmentation technique, described key frame is frame of video to be analyzed.
Such as, under normal circumstances, the data source of video image comprises two kinds, and a kind of data source is the video file stored, and this data source is a kind of data of static state; Another kind of data source is the real-time stream in digital television program, and this data source is a kind of dynamic data.
Video information is an image sequence be made up of one group of image, and each image is just called " frame ".Therefore, be exactly the analytic process to frame of video to the analytic process of video image.Each frame of video can be extracted from the data source of video image, and using each frame of video as frame of video to be analyzed, then graphical analysis be carried out to each frame of video.And another preferred embodiment is, after extract each frame of video from the data source of video image, from all frame of video obtained, extract key frame according to shot segmentation technique, using the key frame that finally extracts as frame of video to be analyzed, only graphical analysis is carried out to key frame.Thisly preferred embodiment can to avoid owing to analyzing the too large problem of computer resource usage that each frame of video brings.
Step 102: extract the condition data matched with described frame of video to be analyzed from described database;
Wherein, the described condition data matched with described frame of video to be analyzed that extracts from database comprises: the programm name obtaining program belonging to described frame of video to be analyzed and the graphical analysis mode analyzed described frame of video to be analyzed; The condition data that the programm name of Search and acquirement is corresponding with graphical analysis mode from database.
Such as, after obtain frame of video to be analyzed from the video file stored, and the programm name got belonging to frame of video to be analyzed is " news hookup ", and the graphical analysis mode analyzed frame of video to be analyzed is recognition of face.As, in database, a condition data A includes programm name " news hookup ", the graphical analysis mode for the video image in " news hookup ": recognition of face, and the supplemental characteristic needed in face recognition process.Another condition data B includes programm name " news hookup ", the graphical analysis mode for the video image in " news hookup ": caption text identification, and the supplemental characteristic needed in caption text identifying.Now, can find from database and the programm name obtained " news hookup " and graphical analysis mode: the condition data A that recognition of face is corresponding.
Step 103: utilize the supplemental characteristic in the condition data extracted to carry out graphical analysis to the frame of video to be analyzed extracted.
Such as, after find condition data A from database, the supplemental characteristic utilizing condition data A to comprise carries out graphical analysis to the frame of video obtained.
Further, described method also comprises: after the executable file being used for graphical analysis is stored in database, described executable file is extracted from database, to carry out graphical analysis according to the executable file extracted to the frame of video to be analyzed obtained, described executable file comprises condition data.
Such as, for some in order to meet the specific demand of user and for the specific image analysis process performed, the executable file being used for specific graphical analysis can be stored in a database, executable file comprises required condition data, from database, extract the executable file being used for specific graphical analysis, according to the executable file extracted, graphical analysis is carried out to the frame of video to be analyzed obtained.Wherein, condition data for specific graphical analysis can be found according to programm name and graphical analysis mode from database.
As can be seen from the above-described embodiment, after the condition data being used for graphical analysis is stored in database, make the supplemental characteristic in condition data independent from the whole handling process of graphical analysis.For analytical system, when the analyzing and processing flow process of analytical system carries out image, from database, directly call required condition data.For database, this database can accept the manual intervention that user carries out according to the use needs of self, dynamically updating of fulfillment database.As, user can according to the supplemental characteristic in each condition data in concrete user demand Update Table storehouse, so that analytical system can carry out different image analysis process based on different supplemental characteristics.
Embodiment two
Refer to Fig. 2, it is the scene schematic diagram of a kind of carries out image analytic process of the application, and the scene schematic diagram described in composition graphs 2, refers to Fig. 3, it is the flow chart of another embodiment of the analytical method of a kind of video image of the application, and the method comprises the following steps:
Step 301: the condition data that will be used for graphical analysis stores in a database, and described condition data comprises supplemental characteristic and the programm name corresponding with supplemental characteristic and graphical analysis mode;
Wherein, if the renewal that database carries out, automatic Network Search renewal source after analytical system starts, searches condition data in local data base the need of renewal by the mode of mating one by one, if need to upgrade, then download new condition data and old condition data is upgraded.If analytical system, under the scene departing from network environment, can obtain new database in advance, then the condition data in new database is imported in local database.
Step 302: obtain the frame of video being used for graphical analysis from the data source of video image;
Wherein, user can by the video file of the real-time stream in Systematic selection digital television program or storage.Real-time stream needs by network interface card or looks several box reception, and at this moment, user needs to carry out necessary setting, as IP address or frequency point information etc. to receiving system.
Step 303: extract key frame according to shot segmentation technique from the frame of video obtained;
Step 304: the programm name obtaining program belonging to key frame and the graphical analysis mode that key frame is analyzed;
Step 305: find the condition data corresponding with the programm name obtained and graphical analysis mode from database;
Step 306: utilize the supplemental characteristic in the condition data extracted to carry out graphical analysis to key frame;
Step 307: export analysis result.
Wherein, result data can with general format, as XML preserves, so that other system directly uses analysis result.
As can be seen from the above-described embodiment, after the condition data being used for graphical analysis is stored in database, make the supplemental characteristic in condition data independent from the whole handling process of graphical analysis.For analytical system, when the analyzing and processing flow process of analytical system carries out image, from database, directly call required condition data.For database, this database can accept the manual intervention that user carries out according to the use needs of self, dynamically updating of fulfillment database.As, user can according to the supplemental characteristic in each condition data in concrete user demand Update Table storehouse, so that analytical system can carry out different image analysis process based on different supplemental characteristics.
Embodiment three
Corresponding with the analytical method of above-mentioned a kind of video image, the embodiment of the present application additionally provides a kind of analytical equipment of video image.Refer to Fig. 4, it is the structure chart of an embodiment of the analytical equipment of a kind of video image of the application, and this device comprises video frame extraction unit 401 to be analyzed, condition data extraction unit 402 and image analyzing unit 403.Operation principle below in conjunction with this device introduces its internal structure and annexation further.
Video frame extraction unit 401 to be analyzed, for after the condition data being used for graphical analysis is stored in database, from the data source of video image, extract frame of video to be analyzed, described condition data comprises the supplemental characteristic corresponding with programm name and graphical analysis mode;
Condition data extraction unit 402, for extracting the condition data matched with described frame of video to be analyzed from described database;
Image analyzing unit 403, carries out graphical analysis for utilizing the supplemental characteristic in the condition data of extraction to the frame of video to be analyzed extracted.
Wherein, the data source of video image comprises: the real-time stream in the video file of storage or digital television program.
Refer to Fig. 5, it is the structure chart of another embodiment of the analytical method of a kind of video image of the application, and wherein, condition data extraction unit 402 comprises: first obtains subelement 4021 and search subelement 4022,
First obtains subelement 4021, for the programm name that obtains program belonging to described frame of video to be analyzed and the graphical analysis mode analyzed described frame of video to be analyzed;
Search subelement 4022, for the condition data that the programm name of Search and acquirement from database is corresponding with graphical analysis mode.
Video frame extraction unit 401 to be analyzed comprises: second obtains subelement 4011 and key-frame extraction subelement 4012,
Second obtains subelement 4011, for obtaining the frame of video being used for graphical analysis from the data source of video image;
Key-frame extraction subelement 4012, for extracting key frame according to shot segmentation technique from the frame of video obtained, described key frame is frame of video to be analyzed.
Refer to Fig. 6, it is the structure chart of another embodiment of a kind of video image analysis method of the application, wherein, described device comprises executable file extraction unit 404 further, for after the executable file being used for graphical analysis is stored in database, from database, extract described executable file, carry out graphical analysis according to the executable file extracted to the frame of video to be analyzed obtained, described executable file comprises condition data.
As can be seen from the above-described embodiment, after the condition data being used for graphical analysis is stored in database, make the supplemental characteristic in condition data independent from the whole handling process of graphical analysis.For analytical system, when the analyzing and processing flow process of analytical system carries out image, from database, directly call required condition data.For database, this database can accept the manual intervention that user carries out according to the use needs of self, dynamically updating of fulfillment database.As, user can according to the supplemental characteristic in each condition data in concrete user demand Update Table storehouse, so that analytical system can carry out different image analysis process based on different supplemental characteristics.
The embodiment of the present application additionally provides a kind of database, refer to Fig. 7, it is the structural representation of an embodiment of a kind of database of the application, this database 701 comprises at least one condition data 7011 for graphical analysis, and condition data 7011 comprises the supplemental characteristic corresponding with programm name and graphical analysis mode.
As can be seen from the above-described embodiment, after the condition data being used for graphical analysis is stored in database, make the supplemental characteristic in condition data independent from the whole handling process of graphical analysis.For analytical system, when the analyzing and processing flow process of analytical system carries out image, from database, directly call required condition data.For database, this database can accept the manual intervention that user carries out according to the use needs of self, dynamically updating of fulfillment database.As, user can according to the supplemental characteristic in each condition data in concrete user demand Update Table storehouse, so that analytical system can carry out different image analysis process based on different supplemental characteristics.
It should be noted that, one of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random AccessMemory, RAM) etc.
Above the analytical method of a kind of video image that the application provides, device and database are described in detail, apply specific embodiment herein to set forth the principle of the application and execution mode, the explanation of above embodiment is just for helping method and the core concept thereof of understanding the application; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.
Claims (8)
1. an analytical method for video image, is characterized in that, comprising:
After the condition data being used for graphical analysis is stored in database, frame of video to be analyzed is extracted from the data source of video image, described condition data comprises the supplemental characteristic corresponding with programm name and graphical analysis mode, if database upgrades, after analytical system starts, Network Search upgrades source automatically, condition data in local data base is searched the need of renewal by the mode of mating one by one, if need to upgrade, then download new condition data and old condition data is upgraded, if analytical system is under the scene departing from network environment, new database can be obtained in advance, again the condition data in new database is imported in local database,
The condition data matched with described frame of video to be analyzed is extracted from described database, wherein, the programm name obtaining program belonging to described frame of video to be analyzed and the graphical analysis mode that described frame of video to be analyzed is analyzed, the condition data that the programm name of Search and acquirement is corresponding with graphical analysis mode from database;
The supplemental characteristic in the condition data extracted is utilized to carry out graphical analysis to the frame of video to be analyzed extracted.
2. method according to claim 1, is characterized in that, describedly from the data source of video image, extracts frame of video to be analyzed comprise:
The frame of video being used for graphical analysis is obtained from the data source of video image;
From the frame of video obtained, extract key frame according to shot segmentation technique, described key frame is frame of video to be analyzed.
3. method according to claim 1, is characterized in that, the data source of described video image comprises: the real-time stream in the video file of storage or digital television program.
4. the method according to claim 1-3 any one, is characterized in that, described method also comprises:
After the executable file being used for graphical analysis is stored in database, extract described executable file from database, carry out graphical analysis according to the executable file extracted to the frame of video to be analyzed obtained, described executable file comprises condition data.
5. an analytical equipment for video image, is characterized in that, comprising:
Video frame extraction unit to be analyzed, for after the condition data being used for graphical analysis is stored in database, frame of video to be analyzed is extracted from the data source of video image, described condition data comprises the supplemental characteristic corresponding with programm name and graphical analysis mode, if database upgrades, after analytical system starts, Network Search upgrades source automatically, condition data in local data base is searched the need of renewal by the mode of mating one by one, if need to upgrade, then download new condition data and old condition data is upgraded, if analytical system is under the scene departing from network environment, new database can be obtained in advance, again the condition data in new database is imported in local database,
Condition data extraction unit, for extracting the condition data matched with described frame of video to be analyzed from described database, wherein, described condition data extraction unit comprises: first obtains subelement, for the programm name that obtains program belonging to described frame of video to be analyzed and the graphical analysis mode analyzed described frame of video to be analyzed, search subelement, for the condition data that the programm name of Search and acquirement from database is corresponding with graphical analysis mode;
Image analyzing unit, carries out graphical analysis for utilizing the supplemental characteristic in the condition data of extraction to the frame of video to be analyzed extracted.
6. device according to claim 5, is characterized in that, described video frame extraction unit to be analyzed comprises:
Second obtains subelement, for obtaining the frame of video being used for graphical analysis from the data source of video image;
Key-frame extraction subelement, for extracting key frame according to shot segmentation technique from the frame of video obtained, described key frame is frame of video to be analyzed.
7. device according to claim 5, is characterized in that, the data source of described video image comprises: the real-time stream in the video file of storage or digital television program.
8. device according to claim 5, is characterized in that, described device also comprises:
Executable file extraction unit, for after the executable file being used for graphical analysis is stored in database, from database, extract described executable file, carry out graphical analysis according to the executable file extracted to the frame of video to be analyzed obtained, described executable file comprises condition data.
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| CN201010133405.4A CN101789029B (en) | 2010-03-10 | 2010-03-10 | Analysis method, device and database of video images |
| HK10110447.6A HK1143880A1 (en) | 2010-03-10 | 2010-11-10 | Method and device for analyzing video images, and database |
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| CN104994404A (en) * | 2015-07-06 | 2015-10-21 | 无锡天脉聚源传媒科技有限公司 | Method and device for obtaining keywords for video |
| CN111836102B (en) * | 2019-04-23 | 2023-03-24 | 杭州海康威视数字技术股份有限公司 | Video frame analysis method and device |
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| AU2008220838A1 (en) * | 2007-02-27 | 2008-09-04 | Accenture Global Services Limited | Video call device control |
| CN101364265A (en) * | 2008-09-18 | 2009-02-11 | 北京中星微电子有限公司 | Method for auto configuring equipment parameter of electronic appliance and ccd camera |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2008220838A1 (en) * | 2007-02-27 | 2008-09-04 | Accenture Global Services Limited | Video call device control |
| CN101622871A (en) * | 2007-02-27 | 2010-01-06 | 埃森哲环球服务有限公司 | Video call device control |
| CN101364265A (en) * | 2008-09-18 | 2009-02-11 | 北京中星微电子有限公司 | Method for auto configuring equipment parameter of electronic appliance and ccd camera |
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