介绍和分析了H. 264 采用的新编码关键技术及算法, 诸如运动补偿, 帧内预测, 变换和量化, 新的熵编码等, 最后阐述视频编解码技术的研究方向及前景.-Descr iption and analysis of the H. 264 coding using the new key technology and algorithms, such as motion compensation, intra prediction, transform and quantization, entropy coding of the new, the last set of video codec technology research and future prospects.