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Title: Detection of motion-incoherent components in video streams
Authors: Pankajakshan, Vinod
Doerr G.
Bora P.K.
Published in: IEEE Transactions on Information Forensics and Security
Abstract: Motion coherency has recently been identified as a desirable property for watermarks embedded within video streams in order to withstand temporal frame averaging along the motion axis. Nevertheless, no tool has been proposed to easily evaluate the motion coherency of a given watermarking system. Today, this assessment relies on a computationally expensive procedure, namely, 1) embed a watermark, 2) perform temporal frame averaging, and 3) check for the presence of the watermark. In this article, a novel oracle is designed to detect whether a video stream contains any motion-incoherent component or not. Since such incoherence can be introduced by nonmotion-coherent watermarking algorithms, this tool has proven to be most valuable to distinguish watermarked from nonwatermarked content. The oracle relies on some features extracted from error frames after motion compensation. Experimental results demonstrate the efficiency of the proposed method with uncompressed and compressed video streams. © 2009 IEEE.
Citation: IEEE Transactions on Information Forensics and Security (2009), 4(1): 49-58
Issue Date: 2009
Keywords: Motion coherency
Video watermarking
ISSN: 15566013
Author Scopus IDs: 6506890403
Author Affiliations: Pankajakshan, V., Department of Computing, University of Surrey, Guildford GU2 7XH, United Kingdom
Doerr, G., University College London, Martlesham IP5 3RE, United Kingdom
Bora, P.K., Department of Electronics and Communication Engineering, Indian Institute of Technology Guwahati, North Guwahati, Assam 781 039, India
Corresponding Author: Pankajakshan, V.; Department of Computing, University of Surrey, Guildford GU2 7XH, United Kingdom; email:
Appears in Collections:Journal Publications [ECE]

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