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Proceedings Paper

Loop/post filter to suppress blocking and ringing artifacts for H.26L video codec
Author(s): Min-Cheol Hong; Hurnsoo Hahn
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Paper Abstract

In this paper, an efficient separable one-dimensional loop and post-filtering algorithm is addressed to suppress blocking and ringing artifacts of H.26L compressed video. A new one- dimensional pixel-based regularized smoothing function is defined and the regularization parameters controlling the degree of smoothness to two neighboring directions are determined by available information in encoder and decoder. The proposed loop/post filter is different to the typical regularization approaches, in that the proposed regularized smoothing functional is defined on pixel basis for easy and fast implementation. Therefore, no inverse matrix is required and iteration techniques are not necessary, which require very expensive computational cost. Also, by using look-up-table for determining the regularization parameters, the recovered image can be obtained with less computational cost. The experimental results show the capability of the proposed algorithm.

Paper Details

Date Published: 29 December 2000
PDF: 8 pages
Proc. SPIE 4310, Visual Communications and Image Processing 2001, (29 December 2000); doi: 10.1117/12.411784
Show Author Affiliations
Min-Cheol Hong, Soongsil Univ. (South Korea)
Hurnsoo Hahn, Soongsil Univ. (South Korea)

Published in SPIE Proceedings Vol. 4310:
Visual Communications and Image Processing 2001
Bernd Girod; Charles A. Bouman; Eckehard G. Steinbach, Editor(s)

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