增强H.263到H.264/AVG视频转码与自适应模内判决

2005 5th International Conference on Information Communications & Signal Processing Pub Date : 2005-12-06 DOI:10.1109/ICICS.2005.1689230

Tianxiao Ye, Y. Tang, P. Xue

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引用次数: 2

摘要

本文提出了一种对H.264/AVC转码的改进方案。通过在图像重建中加入空间内预测，解决了转码器中的漂移问题。引入了一种基于角度信息和SATD排序的两步自适应模式内决策算法来降低复杂度。实验结果表明，在保持相似的PSNR和略有提高的速率的情况下，该算法显著提高了帧内模式判定的速度

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Enhanced H.263 to H.264/AVG Video Transcoding with Adaptive Intra-mode Decision

An enhancement of the H.264/AVC transcoding is proposed in this paper. The drift problem in the transcoder is addressed by including spatial intra prediction in image reconstruction. A two-step adaptive intra-mode decision algorithm based on angle information and SATD ranking is introduced to reduce the complexity. Experiment results show that the proposed enhancement significantly increases the speed of intra mode-decision while maintaining a similar PSNR and a slight increase of rate

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2005 5th International Conference on Information Communications & Signal Processing

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