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介绍了基于单指令多数据(SIMD)阵列处理机系统的1 920×1 152 格式高清晰度电视(HDTV)视频编码器的实现方法:先将1 920×1 152 的HDTV画面划分成6 个1 920×192 的水平条状子画面,由6 个子编码器并行编码,最后将6路码流合成为HDTV码流.为较彻底地解决边界效应问题,给出了子图像重建质量的均衡策略:(1) 过界运动估计/运动补偿策略;(2) 码率分配策略.
The implementation of a 1 920 × 1 152 format high definition television (HDTV) video encoder based on single instruction multiple data (SIMD) array processor system is introduced. Firstly, the 1 920 × 1 152 HDTV picture is divided into 6 1 920 × 192 horizontal bar sub-screen, encoded by six sub-encoder in parallel, and finally the 6-bit stream synthesis HDTV stream. To solve the problem of boundary effect more thoroughly, a balanced strategy of sub-image reconstruction quality is given: (1) overcross motion estimation / motion compensation strategy; (2) rate allocation strategy.