Open AccessEnhanced Block‐Based Adaptive Loop Filter with Multiple Symmetric Structures for Video Coding
Author(s) -
Lee Hahyun,
Lim SungChang,
Choi Haechul,
Jeong Seyoon,
Kim Jongho,
Choi Jin Soo
Publication year - 2010
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.10.0209.0487
Subject(s) - filter (signal processing) , coding (social sciences) , block (permutation group theory) , algorithm , reduction (mathematics) , computer science , adaptive filter , closed loop , mathematics , control theory (sociology) , computer vision , artificial intelligence , engineering , statistics , combinatorics , geometry , control (management) , control engineering
In this letter, we present an enhanced block‐based adaptive loop filter (E‐BALF) with multiple filter symmetric structures. The E‐BALF adapts various filter symmetric structures in a rate‐distortion optimization sense, reflecting the statistical properties of each image in a video sequence. Experimental results show that the proposed method achieves a reduction in the Bjøntegaard delta (BD)‐bitrate by an average of 9.60% compared with Joint Model 11.0 of H.264/AVC. Compared to the state‐of‐the‐art BALF, a reduction of up to 1.13% in BD‐bitrate is achieved.