Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2016
Session Number:M2-4
Session:
Number:M2-4-1
Transform Domain Integer Distortion Estimation for HEVC Encoder
Jeong-Mee Moon, Sungjei Kim, Jinwoo Jeong, Yong-Hwan Kim ,
pp.179-181
Publication Date:2016/7/10
Online ISSN:2188-5079
Summary:
High Efficiency Video Coding (HEVC) improved coding performance compared to earlier standard, H.264/AVC, while its computational complexity increased significantly. In order to find the optimal coding mode, Rate Distortion Optimization (RDO) searches all the possible modes to select the one having the minimum rate-distortion cost. The RDO framework shows best performance, but these holds most portion of the encoding complexity. This paper proposes the efficient way to find the optimal mode without a heavy computational burden of the RDO. We propose an integer level distortion estimation in transform domain and it can remove reconstruction processes needed for RDO mode decision. Experimental results show that the proposed distortion estimation can reduce encoding time about 13.9% with a negligible degradation of the Rate Distortion (RD) performance.