- Title
- Video coding using arbitrarily shaped block partitions in globally optimal perspective
- Creator
- Paul, Manoranjan; Murshed, Manzur
- Date
- 2011
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/157120
- Identifier
- vital:11528
- Identifier
-
https://doi.org/10.1186/1687-6180-2011-16
- Identifier
- ISSN:1687-6180
- Abstract
- Algorithms using content-based patterns to segment moving regions at the macroblock (MB) level have exhibited good potential for improved coding efficiency when embedded into the H.264 standard as an extra mode. The content-based pattern generation (CPG) algorithm provides local optimal result as only one pattern can be optimally generated from a given set of moving regions. But, it failed to provide optimal results for multiple patterns from entire sets. Obviously, a global optimal solution for clustering the set and then generation of multiple patterns enhances the performance farther. But a global optimal solution is not achievable due to the non-polynomial nature of the clustering problem. In this paper, we propose a near-optimal content-based pattern generation (OCPG) algorithm which outperforms the existing approach. Coupling OCPG, generating a set of patterns after clustering the MBs into several disjoint sets, with a direct pattern selection algorithm by allowing all the MBs in multiple pattern modes outperforms the existing pattern-based coding when embedded into the H.264.
- Relation
- EURASIP Journal on Advances in Signal Processing Vol. 16, no. (2011), p.
- Rights
- © Paul and Murshed; licensee Springer. 2011 This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
- Rights
- Open Access
- Rights
- This metadata is freely available under a CCO license
- Subject
- Video coding; Block partitioning; H.264 motion estimation; Low bit-rate coding; Occlusion; 0906 Electrical and Electronic Engineering; 0806 Information Systems; 1005 Communications Technologies
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