30 October 2009 A novel intra prediction framework for H.264/AVC using macroblock-groups with optimized prediction order
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Proceedings Volume 7497, MIPPR 2009: Medical Imaging, Parallel Processing of Images, and Optimization Techniques; 74970Q (2009); doi: 10.1117/12.832929
Event: Sixth International Symposium on Multispectral Image Processing and Pattern Recognition, 2009, Yichang, China
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.
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Mingjing Ai, Yumeng Li, Qinping Zhao, "A novel intra prediction framework for H.264/AVC using macroblock-groups with optimized prediction order", Proc. SPIE 7497, MIPPR 2009: Medical Imaging, Parallel Processing of Images, and Optimization Techniques, 74970Q (30 October 2009); doi: 10.1117/12.832929; https://doi.org/10.1117/12.832929
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Raster graphics

Computer programming

Parallel processing

Video coding

Current controlled current source

Lithium

Medical imaging

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