Journal on Communications ›› 2020, Vol. 41 ›› Issue (7): 110-120.doi: 10.11959/j.issn.1000-436x.2020151

• Papers • Previous Articles     Next Articles

Passive forensic based on spatio-temporal localization of video object removal tampering

Linqiang CHEN1,Quanxin YANG2,Lifeng YUAN1,Ye YAO1(),Zhen ZHANG1,Guohua WU1   

  1. 1 School of Cyberspace Security,Hangzhou Dianzi University,Hangzhou 310018,China
    2 School of Computer,Hangzhou Dianzi University,Hangzhou 310018,China
  • Revised:2020-04-29 Online:2020-07-25 Published:2020-08-01
  • Supported by:
    Humanities and Social Sciences Foundation of Ministry of Education of China(17YJC870021)

Abstract:

To address the problem of identification of authenticity and integrity of video content and the location of video tampering area,a deep learning detection algorithm based on video noise flow was proposed.Firstly,based on SRM (spatial rich model) and C3D (3D convolution) neural network,a feature extractor,a frame discriminator and a RPN (region proposal network) based spatial locator were constructed.Secondly,the feature extractor was combined with the frame discriminator and the spatial locator respectively,and then two neural networks were built.Finally,two kinds of deep learning models were trained by the enhanced data,which were used to locate the tampered area in temporal domain and spatial domain respectively.The test results show that the accuracy of temporal-domain location is increased to 98.5%,and the average intersection over union of spatial localization and tamper area labeling is 49%,which can effectively locate the tamper area in temporal domain and spatial domain.

Key words: video object removal tampering, spatio-temporal localization, video passive forensic, object detection based on 3D convolution

CLC Number: 

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