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Method and system for detecting repeatable video and audio program fragment

A technology of video audio, detection method

Active Publication Date: 2008-04-09
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

Due to the characteristics of the video itself, these methods require a large amount of data, high feature complexity, and slow calculation speed

Method used

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  • Method and system for detecting repeatable video and audio program fragment
  • Method and system for detecting repeatable video and audio program fragment
  • Method and system for detecting repeatable video and audio program fragment

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Embodiment Construction

[0054]In order to make the purpose, technical solution and advantages of the present invention clearer, a method and system for detecting repetitive video and audio program segments 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.

[0055] The method and system for detecting repetitive video and audio program fragments of the present invention is an application of audio content analysis and retrieval, which uses audio features in video and audio programs to automatically detect repetitive video in video and audio programs Audio program segments (such as commercials), and can precisely locate and mark the position of all recurring recurring video and audio program segments.

[0056] The technical problems to be solved in the present invention inclu...

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Abstract

The invention discloses a method and a system for detecting repeated video-audio program fragments. The method includes the following steps: dividing an audio stream in a to-be-detected video-audio program fragment to obtain audio stream fragments, and extracting audio features from each audio stream fragment; in the video-audio program stream, detecting an audio sequence of the repeated video-audio program fragment matching with the audio stream fragment to obtain the repeated video-audio program fragment; aimed at the primarily obtained repeated video-audio program fragment, precisely positioning starting and stopping time points of the repeated video-audio program fragment by matching audio of fine granularity; and combining matching pairs of the precisely positioned repeated video-audio program fragment with a method based on the sequence, thereby obtaining the whole repeated video-audio program fragment. The invention can detect certain video-audio program fragment in video-audio program with high precision and high efficiency.

Description

technical field [0001] The invention relates to the technical field of detection of video and audio segments, in particular to a detection method and system for repetitive video and audio program segments. Background technique [0002] The detection of video and audio programs (such as broadcast TV programs) refers to locating and marking the position where specific video and audio program segments (such as advertisements) appear in the video and audio streams in the video and audio programs. [0003] The automatic detection of video and audio programs is to use a computer to automatically detect a specific video and audio program segment from a video and audio stream and accurately locate the position of the specific video and audio program segment. [0004] Currently common automatic detection methods for video and audio programs are rule-based methods, identification-based methods, identification-based methods, and the like. [0005] The rule-based method is to artificia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/76G11B27/10G06F17/30
Inventor 高杨王向东钱越良刘群
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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