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| 高效帧内预测模式选择算法 | |
| 引用本文： | 王英坤,徐伯庆,杨华. 高效帧内预测模式选择算法[J]. 计算机应用, 2008, 28(Z1) |
| 作者姓名： | 王英坤 徐伯庆 杨华 |
| 作者单位： | 1. 上海理工大学,光学与电子信息工程学院,上海,200093 2. 上海交通大学,电子信息与电气工程学院,上海,200030 |
| 基金项目： | 上海市高校优秀青年教师后备人选科研项目 |
| 摘 要： | 帧内预测技术是H.264不同于以往标准的特点之一.在深入分析帧内预测原理以及预测模式选择过程的基础上,提出了一种新的帧内预测模式选择算法.算法通过相邻宏块预测模式相关性原则、预测模式尺寸预先选择原则、提前中止原则来加快编码速度.实验结果表明,与全搜索算法相比,在编码质量相近的情况下,能够节省51.01%～72.91%的编码时间,与FIMDA算法相比,能够节省15.63%～27.31%的编码时间. |
| 关 键 词： | H.264 视频编码 模式选择 帧内预测 |
An efficient intra mode decision algorithm |
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| WANG Ying-kun,XU Bo-qing,YANG Hua. An efficient intra mode decision algorithm[J]. Journal of Computer Applications, 2008, 28(Z1) | |
| Authors: | WANG Ying-kun XU Bo-qing YANG Hua |
| Affiliation: | WANG Ying-kun1,XU Bo-qing1,YANG Hua2(1.College of Optical , Electronic Information Engineering,University of Shanghai for Science , Technology,Shanghai 200093,China,2.School of Electronic,Information , Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200030,China) |
| Abstract: | Directional spatial prediction for intra coding is a feature which differ H.264 with the other standards.After analyzing the theory of the intra prediction and the process of the intra coding mode decision,a novel intra mode decision algorithm was provided.This algorithm improved the encoder speed through three strategies,the strategy of prediction of the intra-mode beforehand,the early termination strategy,and the strategy of correlation of neighbor macroblocks.Simulation results show that the proposed alg... |
| Keywords: | H.264 video coding mode decision intra mode decision |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |