5.2.5 其余......................................................................................................................................85
5.3 MPEG-4 编码技术.......................................................................................................................85
5.3.1 形状编码..............................................................................................................................85
5.3.2 可扩展性编码......................................................................................................................87
5.3.3 sprite 编码..........................................................................................................................90
5.3.4 视频系统合成......................................................................................................................91
5.4 MPEG-4 档次和级.......................................................................................................................93
参考文献............................................................................................................................................96
第 6 章 H.264/AVC 编码器原理...........................................................................................................97
6.1 H.264/AVC 的应用 ......................................................................................................................97
6.2 H.264/AVC 编解码器 ..................................................................................................................98
6.2.1 H.264 编解码器特点............................................................................................................98
6.2.2 H.264 编码器........................................................................................................................98
6.2.3 H.264 解码器........................................................................................................................99
6.3 H.264/AVC 的结构 ......................................................................................................................99
6.3.1 名词解释..............................................................................................................................99
6.3.2 档次和级..............................................................................................................................99
6.3.3 编码数据格式....................................................................................................................100
6.3.4 参数图像.............................................................................................................................102
6.3.5 片和片组............................................................................................................................102
6.4 帧内预测 ...................................................................................................................................104
6.4.1 4×4 亮度预测模式..............................................................................................................105
6.4.2 16×16 亮度预测模式..........................................................................................................107
6.4.3 8×8 色度块预测模式..........................................................................................................109
6.4.4 信号化帧内预测模式........................................................................................................109
6.5 帧间预测 ................................................................................................................................... 110
6.5.1 树状结构运动补偿............................................................................................................ 110
6.5.2 运动矢量............................................................................................................................ 111
6.5.3 MV 预测 ............................................................................................................................. 113
6.5.4 B 片预测............................................................................................................................. 114
6.5.5 加权预测.............................................................................................................................117
6.6 H.264 的 SP/SI 帧技术（SP 片或 SI 宏块的 P 宏块） ........................................................... 117
6.6.1 SP/SI 帧的应用................................................................................................................... 118
6.6.2 SP/SI 帧的基本原理...........................................................................................................120
6.6.3 实验结果和性能分析........................................................................................................123
6.7 整数变换与量化 .......................................................................................................................124
6.7.1 整数变换............................................................................................................................125
6.7.2 量化....................................................................................................................................129
6.7.3 DCT 直流系数的变换量化................................................................................................131
6.8 CAVLC(基于上下文自适应的可变长编码).............................................................................132
6.8.1 熵编码的基本原理.............................................................................................................132
6.8.2 CAVLC 的基本原理...........................................................................................................133
6.8.3 CAVLC 的上下文模型.......................................................................................................133
6.8.4 CAVLC 的编码过程...........................................................................................................133
