Abstract
Very low bit-rate video coding algorithms using content-based generated patterns to segment out moving regions at macroblock level have exhibited good potential for improved coding efficiency when embedded into the H.264 standard as extra mode. This 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 proposed a near optimal content-based pattern generation (OCPG) algorithm which outperforms the existing approach. Coupling OCPG, generating a set of patterns after clustering the macroblocks into several disjoint sets, with direct pattern selection algorithm by allowing all the macroblocks in multiple pattern modes outperforms the existing pattern-based coding while both embedded into the H.264.
Original language | English |
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Title of host publication | IEEE Workshop on Multimedia Signal Processing (MMSP) |
Place of Publication | USA |
Publisher | IEEE, Institute of Electrical and Electronics Engineers |
Pages | 206-211 |
Number of pages | 6 |
ISBN (Electronic) | 9781424422944 |
DOIs | |
Publication status | Published - 2008 |
Event | MMSP 2008: 10th Workshop - Cairns, Qld, Australia Duration: 08 Oct 2008 → 10 Oct 2008 |
Workshop
Workshop | MMSP 2008: 10th Workshop |
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Country/Territory | Australia |
Period | 08/10/08 → 10/10/08 |