Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2016
Session Number:T2-6
Session:
Number:4901
Pre-processing Algorithm using Sub-band Decomposed Multiscale Retinex for Perceptual Video Coding
Kwang Yeon Choi, Ho Hyeong Ryu, Byung Cheol Song ,
pp.571-573
Publication Date:2016/7/10
Online ISSN:2188-5079
Summary:
This paper presents a pre-processing algorithm based on sub-band decomposed multi-scale retinex (SD-MSR) for effective perceptual video coding. First, an input frame is decomposed into multiple sub-bands using SD-MSR. Then, a few high-frequency sub-bands are perceptually suppressed by controlling their gains based on a specific model. Finally, the pre-processed video sequence is encoded via a conventional video encoder. Experimental results show that the proposed algorithm can improve the coding efficiency of H.264 by about 12% on average in comparison with before-use.