Video tampering detection method and system, storage medium, computer program and terminal

A technology of tampering detection and video, which is applied in the field of information security, can solve the problems of inability to detect surveillance video forgery, difficulty in video processing, and low algorithm efficiency, and achieve the effect of solving the problem of video tampering detection and solving time and space tampering
CN111563531APending Publication Date: 2020-08-21延安市公安局 +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
延安市公安局
Publication Date
2020-08-21

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Abstract

The invention belongs to the technical field of information security, and discloses a video tampering detection method and system, a storage medium, a computer program and a terminal. The method comprises using a three-frame difference method to extract a video key frame; carrying out DCT on the obtained key frame to reduce high-dimensional video data and carry out de-noising processing to obtaina sub-graph containing most signal energy; performing feature extraction on the sub-graph through an ORB algorithm; and comparing the similarity between a to-be-detected video and an original video through the Hamming distance. The detection performance of the proposed method is evaluated by using a statistical method, feature extraction is performed on the key frame of a test video by using an SIFT algorithm, an ORB algorithm and the algorithm of the invention, and the average feature point number, the average time consumption and the average storage space of the key frame are counted. According to the embodiment of the invention, the number of feature points extracted from the key frame is far less than the number of feature points extracted by an SIFT algorithm and is 40% less than thenumber of feature points extracted by an ORB algorithm.
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Description

technical field

[0001] The invention belongs to the technical field of information security, and in particular relates to a video tampering detection method, system, storage medium, computer program, and terminal. Background technique

[0002] At present, due to the rapid development of network technology and video surveillance systems, the amount of surveillance video data has shown explosive growth. Surveillance videos always guarantee the safety of people's lives, and the authenticity of its content is becoming more and more important. Therefore, it is very necessary to ensure the authenticity and validity of the surveillance video content. Video tampering detection methods are mainly divided into two types: video active forensics technology and video passive forensics technology. Video active forensics technology mainly focuses on video watermarking and digital signatures. Video watermarking is to embed some identification information in the host video without affecting...

Claims

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