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Proceedings Paper

A novel intra prediction framework for H.264/AVC using macroblock-groups with optimized prediction order
Author(s): Mingjing Ai; Yumeng Li; Qinping Zhao
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Paper Abstract

In H.264/AVC, there is only one fixed prediction order, raster scan order, for macroblocks (MBs) to perform intra prediction. In this paper, a novel intra prediction framework for H.264/AVC using macroblock-groups with optimized prediction order is proposed. A 33 MB-group is introduced to be coded as a unit in intra prediction. Eight candidate prediction orders are chosen to perform intra prediction for MBs in one 33 MB-group. To utilize the processing power of many-core hardware platforms, original frame pixels are adopted as intra predictors and SATD (Sum of Absolute Transformed Difference) as criteria when calculating the optimized prediction order for one 33 MB-group. The optimized prediction order with the lowest SATD of 33 MB-group is applied to perform actual intra prediction. Experimental results show an average of 3.2% BD bit-rate reduction in intra frame coding, while complexity is only slightly increased for many-core platforms.

Paper Details

Date Published: 30 October 2009
PDF: 7 pages
Proc. SPIE 7497, MIPPR 2009: Medical Imaging, Parallel Processing of Images, and Optimization Techniques, 74970Q (30 October 2009); doi: 10.1117/12.832929
Show Author Affiliations
Mingjing Ai, Beihang Univ. (China)
Yumeng Li, Beihang Univ. (China)
Qinping Zhao, Beihang Univ. (China)


Published in SPIE Proceedings Vol. 7497:
MIPPR 2009: Medical Imaging, Parallel Processing of Images, and Optimization Techniques
Faxiong Zhang; Faxiong Zhang, Editor(s)

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