HEVC色度帧内预测模式搜索优化  

Optimization of HEVC Chroma Intra Mode Decision

作　　者：高搴桧 GAO Qianhui(College of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《现代计算机》2021年第17期60-65,共6页Modern Computer

摘　　要：在HEVC官方测试模型HM中,色度帧内预测模式依赖于亮度分量最终模式的确定,其搜索过程需在亮度模式确定后才能启动,这将影响编码器硬件的流水时序。基于硬件流水线优化研究,提出色度帧内预测模式搜索优化算法,实现色度帧内预测模式的预搜索改进,并在不同类别的视频测试序列下进行性能测试。In HEVC official test model HM,the chroma intra mode depends on the determination of the final mode of the luma component,and its search process needs to be started after the luma mode is determined,which will affect the pipeline timing of the encoder hardware. In this paper,the optimization algorithm of chroma intra mode decision is proposed based on the hardware pipeline optimization research,which implemented the pre-search improvement of chroma intra mode. And the performance of the proposed algorithm is tested under different kinds of video test sequences.

关 键 词：HEVC 帧内预测 色度 流水线优化 

分 类 号：TN919.81[电子电信—通信与信息系统]