Loop/post filter to suppress blocking and ringing artifacts for H.26L video codec

Min-Cheol Hong; Hurnsoo Hahn

doi:10.1117/12.411784

29 December 2000 Loop/post filter to suppress blocking and ringing artifacts for H.26L video codec

Min-Cheol Hong, Hurnsoo Hahn

Author Affiliations +

Proceedings Volume 4310, Visual Communications and Image Processing 2001; (2000) https://doi.org/10.1117/12.411784
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

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.

Citation Download Citation

Min-Cheol Hong and Hurnsoo Hahn "Loop/post filter to suppress blocking and ringing artifacts for H.26L video codec", Proc. SPIE 4310, Visual Communications and Image Processing 2001, (29 December 2000); https://doi.org/10.1117/12.411784

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