Video retrieval method and system

A technology of video and video clips, applied in the field of digital video, can solve problems such as video content similarity matching, and achieve the effect of reducing time complexity

Inactive Publication Date: 2011-07-06
TVMINING BEIJING MEDIA TECH
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  • Abstract
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Problems solved by technology

[0020] The purpose of the present invention is to propose a video retrieval method and system, which can solve the problem of video segment emotional feature extraction and video content similarity matching, and realize video content retrieval through high-level semantics

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  • Video retrieval method and system

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Embodiment Construction

[0053] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0054] figure 1 It is a schematic structural diagram of a video retrieval system in a specific embodiment of the present invention. Such as figure 1 As shown, the video retrieval system includes a query interface unit 101, a similarity matching unit 102, a database unit 103, an emotional feature vector generation unit 104 and a database update unit 105, and the database unit further includes a video database 301 and a feature database 302, and the query interface unit The emotional feature vector generating unit, the similarity matching unit and the database unit are respectively connected, the database unit is respectively connected with the query interface unit, the similarity matching unit and the database updating unit, and the database updating unit is connected with the emotional feature ve...

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Abstract

The invention discloses a video retrieval method and a video retrieval system. The video retrieval method comprises the following steps of: storing video clips into a video database, extracting corresponding affective characteristic vectors of each video clip, and storing the extracted affective characteristic vectors into a characteristic database; inputting the video clip to be retrieved, and extracting the affective characteristic vector of the video clip to be retrieved; matching the affective characteristic vector of the video clip to be retrieved with each affective characteristic vector in the characteristic database, calculating similarities between the affective characteristic vector of the video clip to be retrieved and each affective characteristic vector in the characteristic database, sequencing the similarities, and selecting a preset number of video clips with the greatest similarities; and outputting the selected video clips as retrieval results. By the technical scheme provided by the invention, the problems of affective characteristic extraction of the video clips and video content similarity matching can be solved, and the retrieval of video contents is realized by high-level semantics.

Description

technical field [0001] The invention relates to the technical field of digital video, in particular to a video retrieval method and system. Background technique [0002] In recent years, digital video information has expanded rapidly. New video applications, such as digital library, video on demand, digital TV, video conferencing, distance education, etc., have been accepted and familiarized by more and more people. Facing massive video data, how to find the required video information has become an urgent problem to be solved. Since the 1990s, research on content-based video analysis and retrieval has emerged, the purpose of which is to establish structures and indexes through computer processing, analysis and understanding of video content, so as to achieve convenient and effective video information acquisition. Therefore, the research on content-based video analysis and retrieval has received extensive attention from the very beginning, and has achieved fruitful research...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 赵百泉
Owner TVMINING BEIJING MEDIA TECH
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