Method and system for detecting tampering between digital video frames

A technology for digital video and tamper detection, which is applied to the components of TV systems, TVs, color TVs, etc. It can solve the problems of slow detection speed, affecting the accuracy of detection results, and cumbersome implementation process, and achieve the effect of accurate and feasible solutions

Active Publication Date: 2021-03-02
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its implementation process is cumbersome and the detection speed is slow; the extraction process of global texture features in video frames is easily affected by noise, which in turn affects the accuracy of detection results

Method used

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  • Method and system for detecting tampering between digital video frames
  • Method and system for detecting tampering between digital video frames
  • Method and system for detecting tampering between digital video frames

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044]It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0045] In addition, in th...

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PUM

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Abstract

The invention discloses a method and system for detecting tampering between digital video frames, comprising: acquiring a digital video to be detected; converting the digital video to be detected into a sequence of video frames sorted by time; obtaining a sequence of difference matrixes sorted by time; calculating the difference The similarity between all adjacent or separated two difference matrices in the quantity matrix sequence, according to all the similarities, obtain the inter-frame similarity-time scatter diagram of the digital video to be detected and judge whether there is an inter-frame in the digital video tamper. Since the moving target action in the untampered digital video is continuous, the inter-frame similarity-time scatter diagram between adjacent or separated delta matrices should also be smooth, so it can be directly based on the inter-frame similarity Degree-time scatter diagram to judge whether there is inter-frame tampering in digital video, and provide a more efficient and accurate feasible solution for inter-frame detection of digital video tampering.

Description

technical field [0001] The invention relates to the technical field of video detection, in particular to a method and system for detecting tampering between digital video frames. Background technique [0002] At present, digital video is widely used in various fields of society, and digital video has become a powerful way of information dissemination. With the rapid development of computer software application technology, various video editing software emerges in an endless stream, and video tampering operations become more and more foolish, so that people without any professional knowledge can use digital video editing software according to the operation tutorial. The video is tampered with at will. Some purposeful tampering libraries are used in aspects such as accident identification forensics, self-media-oriented publicity, and effective sample selection for big data calculations. Malicious tampering often brings some serious consequences, undermining judicial justice,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N17/00H04N5/14H04N21/234H04N21/44
CPCH04N5/14H04N17/00H04N21/23418H04N21/44008
Inventor 王威王新聂志雄
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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