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Object-Based Video Coding by Global-to-Local Motion Segmentation

Shamim, A. and Robinson, J.A. (2002) Object-Based Video Coding by Global-to-Local Motion Segmentation. IEEE Transactions on Circuits and Systems for Video Technology, 12 (12). pp. 1106-1116. ISSN 1051-8215

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We describe an object-based video compression scheme based on the derivation and efficient coding of motion boundaries. First, we recursively identify a small number of global movement classes, each represented by two or more motion parameters. Second, we assign regions of a spatial segmentation to movement classes. Third, we merge segments using various similarity heuristics, while adding movement classes for small objects, if necessary. Finally, the boundaries of motion are coded using an efficient asymmetric binary tree coding scheme. Experimental results on standard test sequences qualitatively show that the proposed algorithm gives good segmentation, and that it is suitable for very-low-data-rate object-based coding.

Item Type: Article
Institution: The University of York
Academic Units: The University of York > Electronics (York)
Depositing User: York RAE Import
Date Deposited: 25 May 2009 10:25
Last Modified: 25 May 2009 10:25
Published Version: http://dx.doi.org/10.1109/TCSVT.2002.806811
Status: Published
Publisher: IEEE
Identification Number: 10.1109/TCSVT.2002.806811
URI: http://eprints.whiterose.ac.uk/id/eprint/6242

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