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Detection method and system for video copy

A technology for video copying and detection methods, which is applied to parts of TV systems, parts of color TVs, TVs, etc., to achieve the effect of improving efficiency and processing rate, and overcoming the problem of sequence matching.

Inactive Publication Date: 2009-03-25
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To this end, researchers have proposed a variety of video copy detection methods, but due to the diversity of video formats and content, how to select effective features to accurately detect video copy is still an unsolved problem

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  • Detection method and system for video copy
  • Detection method and system for video copy
  • Detection method and system for video copy

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Embodiment Construction

[0042] In order to make the purpose, technical solution and advantages of the present invention clearer, a video copy detection method and system of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0043] The video copy detection method and system of the present invention is to detect whether the video segment is a copy of another video content, it analyzes the content of the obtained digital video, obtains the content unit, and extracts the main content of each unit that can express the unit Video key frames, by analyzing the similarity of key frame sequences to determine whether a video segment is a full or partial video copy of another video.

[0044] In the embodiment of the present invention, with a copyrighted video (called the detected video...

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Abstract

The invention discloses a video copy detection method and a system. The method comprises the following steps: an inquired video and a detected video are converted to digital videos with the unified format; the inquired video and the detected video are carried out the video structure analysis, shots in the videos are segmented and key frames are extracted; an index is established for the key frames of the detected video, the key frames of the inquired video are utilized for carrying out the preliminary search of a video copy in the index, the detected video containing the similar content with the key frames of the inquired video is obtained, and the detected video is taken as the option video for the next matching; the similarity between the key frames of the inquired video and the sequence of the key frames of the option video is calculated, the matching of the sequence of the key frames is carried out, the similarity between the videos are confirmed, and the video with the high similarity is taken as a copy video source of the inquired video. The video copy detection method and the system can reduce the search space for the video copy detection and effectively improve the detection efficiency.

Description

technical field [0001] The invention relates to the field of video detection, in particular to a method and system for detecting video copy. Background technique [0002] Digital technology has greatly facilitated the storage, transmission and duplication of video information, resulting in a rapid increase in the amount of digital video content. However, in practical applications, the same video content is often coded into different formats to meet different needs due to the limitations of network transmission bandwidth and video quality requirements. [0003] Generally, this kind of video whose content is the same as the original video but whose format has changed is called a video copy, or a copied video. [0004] Detecting copied videos has important practical uses in visual information processing: firstly, video copy detection is of great significance in video information retrieval and filtering and sorting search results; secondly, in media tracking, video copy detecti...

Claims

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Application Information

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IPC IPC(8): H04N5/76G11B27/10G06F17/30
Inventor 潘雪峰张勇东李锦涛
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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