摘要
分析了H.264编码工具在低码率应用场合的编码性能,选择了1/4像素精度的运动补偿、8×8及更大块模式组合、1～2个参考帧、CABAC熵编码的编码方案,对占计算量最大的整数点和子像素点运动搜索算法进行改进,在P4平台上利用并行数据处理对主要计算模块进行指令优化,大幅度提高其编码速度,满足实时视频通信要求.
In this paper, After selecting The the a high complexity of H. 264 video coding tools of 1 profile for low bits estimation method and the way to implement posed and discussed. Expe cations with similar coding holds it back to be applied in real-time video communication. H. 264 are analyzed and compared about their performance. applications, the development of fast block matching motion optimization calculation of H. 264 coding using SSE2 are pro rimental results show that the optimized encoder can satisfy the real time appliefficiency to the reference.
出处
《武汉大学学报（理学版）》
CAS
CSCD
北大核心
2005年第5期599-602,共4页
Journal of Wuhan University:Natural Science Edition
基金
国家自然科学基金资助项目(60472040)
