Fast intra prediction algorithm applied in H.264/AVC

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作者：
Beijing Municipal Key Laboratory of Multimedia and Intelligent Software Technology, College of Computer Sciences, Beijing University of Technology, Beijing 100124, China [1 ]
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来源：
Beijing Gongye Daxue Xuebao J. Beijing Univ. Technol. | 2009年 / 10卷 / 1423-14275期
关键词：
Motion Picture Experts Group standards - Forecasting - Compression ratio (machinery) - Video signal processing;
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摘要：
In achieve a high compression ratio, the authors proposed order to a DCT-based energy function, which is used to estimate the textural complexity of residual blocks of intra prediction. Then no more than 4 modes instead of 9 intra prediction modes for 44 block can be chosen to perform RDO according to the textural complexity of residual block. Consequently, the complexity decreases significantly. Experiments show that the proposed algorithm can save about 48% of the computation time stably while maintaining the PSNR-Bitrate performance of H.264/AVC.
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