计算机工程Issue(5)：270-273,4.DOI:10.3969/j.issn.1000-3428.2014.05.056
一种快速HEVC帧内预测模式决策算法
A Fast Mode Decision Algorithm for Intra Prediction in HEVC
摘要
Abstract
High Efficiency Video Coding(HEVC) is a kind of new standard of video coding developed by the Joint Collaborative Team on Video Coding(JCT-VC). For the problem of high computational complexity of intra prediction in HEVC, a fast intra prediction algorithm based on edge direction detection is proposed. The proposed method divides 35 intra prediction modes into 5 sets of candidate modes according to 5 basic directions, and each set contains 11 intra prediction modes. The edge direction strength of Prediction Unit(PU) in 5 directions are calculated. The proportion of each direction is calculated and the candidate modes are selected to set corresponding edge direction with the largest proportion as best candidate modes for PU to reduce computational complexity effectively. Experimental results show that the proposed method saves encoding time of 15% and 18% on average compared with HM8.0 in high efficiency and low complexity.关键词
视频编码/高性能视频编码标准/帧内预测/预测单元/模式决策/边缘方向检测Key words
video coding/High Efficiency Video Coding(HEVC) standard/intra prediction/Prediction Unit(PU)/mode decision/edge direction detection分类
信息技术与安全科学引用本文复制引用
雷海军,危雄,杨张,袁梅冷..一种快速HEVC帧内预测模式决策算法[J].计算机工程,2014,(5):270-273,4.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(2012B091100495,2009B090300267)；深圳市基础研究基金资助项目(JCYJ20120613113419607)；深圳大学校重点基金资助项目(2213k3190007)。 （60972037）
