Deblocking Filter Algorithm by Color Psychology Analysis for Various Video Decoders

• Main Authors: Kai-lin Huang, 黃凱琳
• Other Authors: Chia-Hung Yeh
• Format: Others
• Language: en_US
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/esx539

碩士 === 國立中山大學 === 電機工程學系研究所 === 96 === In this thesis, a post-processing deblocking filter is proposed to reduce the blocking effects. This proposed algorithm is suitable for the current block-based video standards without any modification. The proposed algorithm uses Sobel operator and wavelet transform to accurately detect blocking effects at 4×4 or 8×8 blocking boundaries automatically. In the filtering stage, the proposed algorithm provides four filter modes to eliminate blocking effects at different color regions according to human color vision and color psychology analysis. Experimental results show that the proposed algorithm has better subjective and objective qualities for H.264/AVC reconstructed video sequences compared with several existing methods.