Object boundary padding technique for improving MPEG-4 video compression efficiency
Abstract
In MPEG-4, the boundary macro-blocks of reference video objects are padded by replicating the boundary samples towards the exterior. The authors propose the introduction of a linear extrapolation based pre-padding step to minimise prediction errors. Experimental results indicate that gains of up to 7% can be achieved for boundary macro-block coding by this proposed technique.
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References
1.
ISO/IEC/MPEG'97: ‘MPEG-4 video verification model 8.0’, Doc.N1966, July 1997.
2.
ISO/IEC/MPEG'97: ‘MPEG-4 Requirement – Version 3’. MPEG Requirements Group, Doc.N1682, April 1997.
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Published in print: 19 August 1999
Published online: 14 March 2024
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