Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2016
Session Number:M2-4
Session:
Number:M2-4-2
Adaptive Gaussian Filtering based on Contrast of Luminance for Perceptual Video Coding
Wahyu Wiratama, Yong-Jo Ahn, Ismail Marzuki, Donggyu Sim ,
pp.183-184
Publication Date:2016/7/10
Online ISSN:2188-5079
Summary:
This paper proposes an adaptive Gaussian low pass filtering based on the contrast of luminance for perceptual video coding. The proposed adaptive Gaussian low pass filtering employs the contrast threshold of luminance to improve bit saving while maintaining the visual quality. In addition, a block-based filtering decision is also proposed to avoid the over smoothing effect around the high frequency area according to the edge information. Experimental results show that our proposed algorithm can save bitrate by 16% on average or up to 23% with trivially visual quality loss.