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The Steganalysis of Video Information Hiding Algorithms Using Motion Vectors

Author: WuShan
Tutor: SuYuTing
School: Tianjin University
Course: Signal and Information Processing
Keywords: Information Hiding Hide analytics Motion Estimation Motion vector
CLC: TP391.41
Type: Master's thesis
Year: 2008
Downloads: 74
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Abstract


In recent years , the emergence of software tools with a variety of information hiding , digital multimedia information covert communication begun to impact the traditional information security system , so for information hidden confrontational technology - information hiding analytical techniques is quietly rising . Existing information hiding analytical techniques around still images hidden technology , and achieved some promising results compared hidden hidden video information system analysis study is not yet fully expanded . But digital video with vast amounts of data resources , able to provide the necessary carrier space for large-capacity information hiding , therefore targeted Hide analysis is bound to become a hot topic in the field . The thesis of the existing disclosure -based video motion vector information hiding algorithm conducted a comprehensive analysis , focusing on the hidden information embedded capacity embedded information security system anti - detection capabilities , and several other major aspects . Secondly, the existing video information hiding algorithm simulation algorithm in the MPEG-2 platform , extraction of the motion vector in the video sequence , and its hiding capacity and safety analysis . Finally, two steganalysis detection method is proposed based on the analysis of the results of this paper , a secondary predictive coding technique , and its core is to treat the measured video stream standard decoding , and common inter-frame motion prediction algorithm reconstructed second predictive coding to the motion picture sequence , the motion information obtained by comparing the two predictive coding , to use its regional sports consistency as a criterion to determine whether the motion vector hidden information ; another method is by analyzing the half-pixel motion vector probability distribution of statistical laws , to detect the presence of hidden embedded modulation law . Simulation testing through a large number of video sequences to fully verify the feasibility and effectiveness Hide analysis algorithms .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
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