节点文献
基于H.264视频编码技术的研究
Research on video coding technologies based on H.264
【摘要】 介绍和分析了H .2 6 4采用的新编码技术 ,诸如 1 /4和 1 /8像素精度运动估计 ,可变大小的图像分块 ,多参考帧 ,新的熵编码算法等 .新编码技术的采用使H .2 6 4的编码性能得到大幅提升 ;通过与H .2 6 3编码模型的实验性能对比测试 ,比较分析了H .2 6 4新编码技术的优缺点
【Abstract】 The new features of H.264 coding technology were introduced and analyzed such as 1/4 and 1/8 pixels precision, different block size for motion estimation, multiple reference frames, new entropy coding Algorithm etc. The use of new coding technologies makes H.264 more significantly enhanced in performance. Through comparison of the performance of H.263 with that of H.264 by experiment, the advantages and disadvantages of H.264 coding technology were declared.
【关键词】 视频编码;
H.264;
H.263;
帧内预测;
帧间预测;
运动估计;
熵编码;
【Key words】 video coding; H.264; H.263; intra prediction; inter prediction; motion estimation; entropy coding;
【Key words】 video coding; H.264; H.263; intra prediction; inter prediction; motion estimation; entropy coding;
- 【文献出处】 华中科技大学学报(自然科学版) ,Journal of Huazhong University of Science and Technology , 编辑部邮箱 ,2003年08期
- 【分类号】TN919.81
- 【被引频次】128
- 【下载频次】1142