| 一种快速HEVC编码单元决策算法 |
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| 引用本文： | 雷海军,杨虑旺,陈骁,袁梅冷.一种快速HEVC编码单元决策算法[J].计算机工程,2014(3):270-273. |
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| 作者姓名： | 雷海军 杨虑旺 陈骁 袁梅冷 |
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| 作者单位： | [1]深圳大学计算机与软件学院,广东深圳518060 [2]创维集团深圳研究院,广东深圳518060 [3]深圳职业技术学院,广东深圳518060 |
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| 基金项目： | 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（20128091100495,20098090300267）;深圳市基础研究基金资助项目（JCYJ20120613113419607）. |
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| 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%。
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| 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 |
A Fast Coding Unit Decision Algorithm for HEVC |
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| LEI Hai-jun,YANG Zhong-wang,CHEN Xiao,YUAN Mei-leng.A Fast Coding Unit Decision Algorithm for HEVC[J].Computer Engineering,2014(3):270-273. |
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| Authors: | LEI Hai-jun YANG Zhong-wang CHEN Xiao YUAN Mei-leng |
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| Affiliation: | 1. College of Computer and Software, Shenzhen University, Shenzhen 518060, China; 2. Shenzhen Research Institute of Skyworth Group, Shenzhen 518060, China; 3. Shenzhen Polytechnic, Shenzhen 518060, China) |
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| Abstract: | 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. |
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| Keywords: | High Efficient Video Coding（HEVC） coding unit computational complexity early termination texture characteristic bit rate |
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