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Proceedings Paper

Fast multi-symmetry adaptive loop filter algorithm
Author(s): Hongwei Li; Yunsong Li; Chengke Wu; Rui Song; Yuli Feng
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Paper Abstract

In order to further improve the coding performance of Block-Based and Quadtree-Based Adaptive Loop Filter (BQ_ALF), the Fast Multi-Symmetry Adaptive Loop Filter Algorithm (FMS_ALF) is proposed. Firstly, this algorithm determines the optimal symmetry filter according to area symmetry and average sum of absolute difference. Then the filter areas are obtained through the block-based and quadtree-based method in I frame and through motion vector and Rate Distortion Optimization model A (RDOA) in P or B frame .Finally the obtained areas are filtered by the optimal symmetry filter. Simulation results show that compared with BQ_ALF, the proposed algorithm reduces the coding time greatly while retains the reconstructed picture quality.

Paper Details

Date Published: 24 August 2010
PDF: 8 pages
Proc. SPIE 7810, Satellite Data Compression, Communications, and Processing VI, 78100Y (24 August 2010); doi: 10.1117/12.859795
Show Author Affiliations
Hongwei Li, Xidian Univ. (China)
Yunsong Li, Xidian Univ. (China)
Chengke Wu, Xidian Univ. (China)
Rui Song, Xidian Univ. (China)
Yuli Feng, Xidian Univ. (China)

Published in SPIE Proceedings Vol. 7810:
Satellite Data Compression, Communications, and Processing VI
Bormin Huang; Antonio J. Plaza; Joan Serra-Sagristà; Chulhee Lee; Yunsong Li; Shen-En Qian, Editor(s)

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