Motion vector based information hiding algorithm for H.264/AVC against motion vector steganalysis

Authors:
Huiyun Jing;Xin He;Qi Han;Xiamu Niu
Affiliations:
Department of Computer Science and Technology, Harbin Institute of Technology, Harbin, China;Department of Computer Science and Technology, Harbin Institute of Technology, Harbin, China;Department of Computer Science and Technology, Harbin Institute of Technology, Harbin, China;Department of Computer Science and Technology, Harbin Institute of Technology, Harbin, China
Venue:
ACIIDS'12 Proceedings of the 4th Asian conference on Intelligent Information and Database Systems - Volume Part II
Year:
2012

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Abstract

In this paper, we present a novel motion vector based information hiding algorithm for H.264/AVC against motion vector steganalysis. For resisting motion vector steganalysis, the underlying statistics of the motion vectors used by motion vector steganalysis are remained during the secret information embedding process. We choose one part of motion vectors to be modified for restoring the statistics used by motion vector steganalysis. In order to guarantee imperceptibility, secret information is embedded by modulating the best search points of other part of motion vectors during the quarter-pixel motion estimation process. Experimental results show that the proposed algorithm effectively resist motion vector steganalysis, while having good video quality.