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Positioning method of repeated fragments based on video reconstruction

A technology of repeating segments and positioning methods, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as high memory space, limited applications, and high computational complexity

Active Publication Date: 2012-10-24
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, if the query video is too long, this batch processing method will face the problems of high computational complexity and high memory space, which limits its application in real media environments

Method used

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  • Positioning method of repeated fragments based on video reconstruction
  • Positioning method of repeated fragments based on video reconstruction
  • Positioning method of repeated fragments based on video reconstruction

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Embodiment Construction

[0036] refer to Figure 1 to Figure 4 Examples of the present invention will be described.

[0037] In order to make the above objects, features and advantages more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] like figure 1 As shown, a method for locating repeated segments based on video reconstruction includes the following steps:

[0039] S1. Remove a large amount of redundancy between the video frames in the query video sequence and the reference video sequence, and extract representative video key frames for short videos with close time and consistent content, so as to realize streamlined processing of data;

[0040] S2. Using a pseudo-text document to describe the video key frame content;

[0041] S3. Convert the visual similarity calculation between video key frames into a similarity measure between pseudo-text documents, measure the similarity between q...

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Abstract

The invention discloses a positioning method of repeated fragments based on video reconstruction. The positioning method includes the steps of removing mass redundancy among video frames in a query video sequence and a quote video sequence, and extracting representative video key frames for small video fragments which have close time and consistent contents to achieve a downsizing process of data; describing contents of the video key frames by utilizing pseudo text documents; converting visual similarity calculation among video key frames into similarity measurement among pseudo text documents, measuring the similarity between query video key frames and quote video key frames, and returning a series of similar quote key frames for each query key frame; comprehensively using time consistency restraints of repeated video fragments and time inconsistency among non-repeated fragments to reconstruct quote video fragments and determine boundary information of the repeated video fragments. The positioning method is applicable to mining of data media and copyright protection.

Description

technical field [0001] The invention relates to the technical fields of digital media mining and copyright protection, in particular to a method for locating repeated segments based on video reconstruction. Background technique [0002] With the wide popularization of image and video acquisition equipment and the rapid development of Internet technology, people can easily share their digital works through some popular image / video sharing websites, which makes multimedia information resources unprecedentedly abundant. For example, the famous image sharing website Flickr and the video sharing website YouTube store billions of image / video files. Usually, these shared videos are personalized videos made by some users. In addition to purely original works, a large part of the works are composed of a series of existing video clips processed and synthesized by video editing software, especially popular video clips on the Internet. Frequently cited. From the perspective of multime...

Claims

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Application Information

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IPC IPC(8): G06F17/30H04N21/232
Inventor 韦世奎赵耀朱振峰
Owner BEIJING JIAOTONG UNIV
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