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首页> 外文会议>International Conference on Computational Science and Its Applications(ICCSA 2006) pt.1; 20060508-11; Glasgow(GB) >New Approach to Complexity Reduction of Intra Prediction in Advanced Multimedia Compression
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New Approach to Complexity Reduction of Intra Prediction in Advanced Multimedia Compression

机译：降低高级多媒体压缩中帧内预测复杂度的新方法

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摘要

H.264 is the new multimedia compression standard developed by VCEG and MPEG. In order to maximize the compression performance, H.264 adopts RDO mode decision techniques at the cost of very remarkable computational complexity. To reduce encoder complexity associated with the intra-prediction mode selection, in this paper, a fast intra prediction mode selection scheme is proposed. It is based on three improvement parts, including improvement of the intra prediction algorithm structure, fast selection between intra 4x4 block mode and intra 16x16 block mode, and the fast 4x4 luma block mode selection based on the luma similarity between reference pixels. Experimental results show that the proposed scheme outperforms Pan's method, and compared with the test model JM8.6 provided by JVT, the proposed scheme reduces 83.10% coding time for intra frames and 50.94% coding time for all the frames while maintaining the PSNR and bit rate.
机译：H.264是VCEG和MPEG开发的新的多媒体压缩标准。为了使压缩性能最大化，H.264采用RDO模式决策技术，但代价是计算量非常大。为了降低与帧内预测模式选择相关的编码器复杂度，本文提出了一种快速帧内预测模式选择方案。它基于三个改进部分，包括帧内预测算法结构的改进，帧内4x4块模式和帧内16x16块模式之间的快速选择以及基于参考像素之间的亮度相似度的快速4x4亮度块模式选择。实验结果表明，该方案优于潘氏方法，与JVT提供的测试模型JM8.6相比，在保持PSNR和比特率的同时，帧内帧的编码时间减少了83.10％，所有帧的编码时间减少了50.94％。率。

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