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Video inter-frame forgery detection method based on light stream consistency

A technology of tamper detection and video frame, applied in TV, selective content distribution, electrical components, etc., can solve the problems that video information is no longer reliable, it is difficult to guarantee video integrity and authenticity, and achieve the simple and easy extraction of relative noise features , the effect of improving time efficiency

Inactive Publication Date: 2013-11-06
SHANGHAI JIAO TONG UNIV
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, as the functions of various video editing software become more and more perfect, many videos have been tampered with and circulated on the Internet, making the video information no longer reliable
If the tampered video is used as a court testimony, it is difficult to guarantee the integrity and authenticity of the video

Method used

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  • Video inter-frame forgery detection method based on light stream consistency
  • Video inter-frame forgery detection method based on light stream consistency
  • Video inter-frame forgery detection method based on light stream consistency

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Embodiment Construction

[0049] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0050] The present invention is realized through the following technical schemes, first compressing two adjacent video frames layer by layer to obtain a five-layer pyramid, extracting the motion vector of each layer, expanding, summing and smoothing the motion vector sequentially from top to bottom The optical flow characteristics between two video frames are obtained, and the absolute value sum statistics of the optical flow are performed for the horizontal and vertical directions respectively. A...

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Abstract

The invention provides a passive video inter-frame forgery detection method based on the light stream consistency in the field of video content safety. The detection method mainly comprises the steps of extracting light stream features of two adjacent frames in a surveillance video shot by a static camera, adding light stream absolute values in horizontal and vertical directions to generate two light stream sequences of the whole video in horizontal and vertical directions, analyzing the light stream sequences, and performing video inter-frame forgery detection for features of different inter-frame forgery modes. According to the detection method, through the light stream features which are high-robustness video features, five types of video inter-frame forgeries, including video frame insertion, frame deletion, repeated duplication of single frames, non-adjacent duplication of continuous frames and adjacent duplication of continuous frames can be detected effectively, and a forceful detection weapon is provided for the integrity and the authenticity of court testimony videos.

Description

technical field [0001] The invention relates to a method in the field of video tampering detection, in particular to a video inter-frame tampering detection method based on optical flow consistency. Background technique [0002] With the increasing development of Internet technology and digital devices, digital video has been widely integrated into people's lives, and has gradually become an important source of evidence for court certification. However, as the functions of various video editing software become more and more perfect, many videos have been tampered with and circulated on the Internet, making the video information no longer reliable. If the falsified video is used as a court testimony, it is difficult to guarantee the integrity and authenticity of the video. How to accurately determine whether a given video has been tampered with has become an important topic in the field of information security. [0003] At present, common video tampering can be divided into...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/50H04N21/8358
Inventor 蒋兴浩孙锬锋巢娟王琬程东阳吴俞醒
Owner SHANGHAI JIAO TONG UNIV
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