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Video evidence obtaining method and system and medium

A video and target video technology, applied in the field of systems and media, video forensics methods, can solve the problem of high difficulty in video forensics

Pending Publication Date: 2021-11-09
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, various modifications to the image can also be applied to the video. In actual transmission, the video will also undergo compression and other processing, and the difficulty of video forensics will be even higher.

Method used

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  • Video evidence obtaining method and system and medium
  • Video evidence obtaining method and system and medium
  • Video evidence obtaining method and system and medium

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, 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.

[0043] It should be noted that although the functional modules are divided in the system schematic diagram and the logical order is shown in the flow chart, in some cases, it can be executed in a different order than the module division in the system or the flow chart steps shown or described. The terms "first", "second" and the like in the specification and claims and the above drawings are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence.

[0044] With the advent of the digital information age, digital images, videos and other media inform...

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Abstract

The invention discloses a video evidence obtaining method and system and a medium. The video evidence obtaining method comprises the steps of obtaining a target video; obtaining a motion residual corresponding to each picture frame in the target video according to a collusion operator; and inputting the motion residual error into the trained high-pass filtering full convolutional network to obtain an evidence obtaining result of the target video output by the high-pass filtering full convolutional network. According to the video evidence obtaining method and system, evidence obtaining can be well carried out on tampered videos, the evidence obtaining efficiency is high, the video evidence obtaining difficulty is effectively reduced, the primitiveness, integrity and authenticity of the videos can be effectively verified, and the practical value is good.

Description

technical field [0001] The present invention relates to the technical field of video forensics, in particular to a video forensics method, system and medium. Background technique [0002] With the advent of the digital information age, digital images, videos and other media information are widely used in people's lives and have a profound impact on people's lives. [0003] In related technologies, it is difficult to judge the authenticity of a video by visual observation. It can only be judged whether a video has been tampered with based on video content, semantic information, video logic, and tampering traces. Even professionals are wasteful of time and energy when researching Therefore, it is necessary to use certain tools or specific modern technical means to efficiently identify the authenticity of the video, and to find out which video clips have been tampered with, and locate the relevant picture frames and positions. A video is composed of multiple picture frames, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06N3/047G06N3/048G06N3/045G06F18/2415G06F18/241
Inventor 李峰肖灿章登勇吴鹏杰朱文杰
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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