摘要
分析高效视频编码标准(HEVC)的编码单元算法,针对当前视频编码标准计算复杂度大的问题,基于相邻编码单元相关性和纹理特性,提出一种快速HEVC编码单元决策算法。该算法统计当前编码单元和相邻编码单元的相关性,分析编码单元的纹理复杂度,并没定合理的阈值,决定检测是否提前终止,以此快速找到最优编码单元。仿真结果表明,该算法与HEVC参考软件HM8.0相比,在码率增加忽略不计的情况下,编码时间平均缩短了37.4%,最高可达48.2%。
This paper analyzes coding unit algorithm of High Efficient Video Coding（HEVC） standard. Aiming at its high computational complexity, this paper proposes a fast coding unit decision algorithm for HEVC based on the coding unit correlation and texture of coding unit. This algorithm counts the correlation of current coding unit and adjacent coding unit, calculates texture complexity of encoding units, sets a reasonable threshold, and detects early termination, to quickly find the optimal coding unit. Simulation results show that, compared with the HEVC conference software HMS.0, the proposed algorithm can reduce about 37.4% encoding time and up to 48.2%, while it suffers from negligible on bit-rates performance.
出处
《计算机工程》
CAS
CSCD
2014年第3期270-273,共4页
Computer Engineering
基金
国家自然科学基金资助项目(60972037)
广东省部产学研基金资助项目(2012B091100495
2009B090300267)
深圳市基础研究基金资助项目(JCYJ20120613113419607)
关键词
高效视频编码
编码单元
计算复杂度
提前终止
纹理特征
码率
High Efficient Video Coding（HEVC）
coding unit
computational complexity
early termination
texture characteristic
bit rate
