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Proceedings Paper

Compression artifact reduction with adaptive bilateral filtering
Author(s): Ming Zhang; Bahadir K. Gunturk
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Paper Abstract

In this paper, we present a spatially adaptive method to reduce compression artifacts observed in block discrete cosine transform (DCT) based image/video compression standards. The method is based on the bilateral filter, which is very effective in denoising images without smoothing edges. When applied to reduce compression artifacts, the parameters of the bilateral filter should be chosen carefully to have a good performance. To avoid over-smoothing texture regions and to effectively eliminate blocking and ringing artifacts, in this paper, texture regions and block boundary discontinuities are first detected; these are then used to control/adapt the spatial and intensity parameters of the bilateral filter. Experiments show that the proposed method improves over the standard non-adaptive bilateral filter visually and quantitatively.

Paper Details

Date Published: 19 January 2009
PDF: 11 pages
Proc. SPIE 7257, Visual Communications and Image Processing 2009, 72571A (19 January 2009); doi: 10.1117/12.806271
Show Author Affiliations
Ming Zhang, Louisiana State Univ. (United States)
Bahadir K. Gunturk, Louisiana State Univ. (United States)

Published in SPIE Proceedings Vol. 7257:
Visual Communications and Image Processing 2009
Majid Rabbani; Robert L. Stevenson, Editor(s)

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