Intra prediction with 1D macroblock partitioning for image and video coding

G. Laroche; J. Jung; B. Pesquet

doi:10.1117/12.805846

19 January 2009 Intra prediction with 1D macroblock partitioning for image and video coding

G. Laroche, J. Jung, B. Pesquet

Proceedings Volume 7257, Visual Communications and Image Processing 2009; 72570S (2009) https://doi.org/10.1117/12.805846
Event: IS&T/SPIE Electronic Imaging, 2009, San Jose, California, United States

Abstract

The H.264/AVC1 standard of the Video Coding Experts Group (VCEG) and the Moving Pictures Experts Group (MPEG), also known as MPEG-4 AVC, achieves significant compression gain compared to its predecessors. Not only Inter yet also Intra coding has been greatly improved. Today VCEG encourages coding efficiency improvements through the KTA (Key Technical Area) software,² a collection of tools that improves the H.264/AVC standard, to prepare the next generation video codec. The work proposed in this paper has been designed in this context. An Intra coding scheme is proposed. A macroblock is split in 1D partitions to reduce the distance between the pixel to encode and its predictors. Three scan orders for the partitions are available: a raster scan, a bidirectional scan and a hierarchical scan. Predictors adapted to the shape and characteristics of the 1D partitions are defined and finally a 1D-DCT is applied to the residual signal. Experimental results report an average bitrate savings of 8.6% compared to the H.264/AVC standard (up to 19% on a particular sequence).

Citation Download Citation

G. Laroche, J. Jung, and B. Pesquet "Intra prediction with 1D macroblock partitioning for image and video coding", Proc. SPIE 7257, Visual Communications and Image Processing 2009, 72570S (19 January 2009); https://doi.org/10.1117/12.805846

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