Title :
1/2 and 1/4 pixel paralleled FME with a scalable search pattern for HEVC ultra-HD encoding
Author :
Dandan Ding; Xin Ye; Silong Wang
Author_Institution :
Institute of Information and Communication Engineering, Zhejiang University, Hangzhou 310027, China
Abstract :
A hardware design of fractional motion estimation (FME) for high-efficiency video coding (HEVC) is presented in this paper. To achieve one-iteration search and adapt to different applications, several search patterns are evaluated by a trade-off between coding efficiency and computational complexity and finally a scalable search pattern is formed. Based on the scalable search pattern, a search order is elaborately designed for 1/2 and 1/4 pixel paralleled interpolation, with which system throughput is significantly improved. Results show that with 200MHz working frequency, the proposed design is able to process Ultra-HD(3840×2160) videos@30~60fps in real time with full partition depths and modes of HEVC supported.
Keywords :
"Throughput","Encoding","Estimation","Frequency estimation"
Conference_Titel :
Communication Technology (ICCT), 2015 IEEE 16th International Conference on
Print_ISBN :
978-1-4673-7004-2
DOI :
10.1109/ICCT.2015.7399842
