Title :
A Texture Complexity Based Fast Prediction Unit Size Selection Algorithm for HEVC Intra-coding
Author :
Yinbo Liu ; Xingang Liu ; Peicheng Wang
Author_Institution :
Dept. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
The latest High Efficiency Video Coding (HEVC) standard could achieve the highest coding efficiency compared with all existing video coding standards. However, the computational complexity is increased dramatically because all the possible combinations of the mode candidates are calculated in order to find the optimal rate distortion (RD) cost using Lagrange multiplier. In order to save the coding time of HEVC encoder, this paper proposes a texture complexity based fast prediction unit size selection algorithm for HEVC intra coding. The proposed algorithm could reduce around 38% encoding time in average with only 0.2% increase in BD-rate compared to the test model HM10.0 of HEVC.
Keywords :
computational complexity; image texture; video codecs; video coding; BD-rate; HEVC encoder; HEVC intra coding; HEVC standard; Lagrange multiplier; fast prediction unit size selection algorithm; high efficiency video coding; optimal rate distortion; texture complexity; video coding standards; Algorithm design and analysis; Complexity theory; Encoding; Partitioning algorithms; Prediction algorithms; Standards; Video coding; HEVC; intra prediction; texture complexity; video coding;
Conference_Titel :
Computational Science and Engineering (CSE), 2014 IEEE 17th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4799-7980-6
DOI :
10.1109/CSE.2014.292
