Translator Disclaimer
19 January 2006 Reduction of MPEG ringing artifacts using adaptive sigma filter
Author Affiliations +
Proceedings Volume 6077, Visual Communications and Image Processing 2006; 607722 (2006)
Event: Electronic Imaging 2006, 2006, San Jose, California, United States
In this paper, we propose a novel computationally efficient post-processing algorithm to reduce ringing artifacts in the decoded DCT-coded video without using coding information. While the proposed algorithm is based on edge information as most filtering-based de-ringing algorithms do, this algorithm solely uses one single computationally efficient nonlinear filter, namely sigma filter, for both edge detection and smoothing. Specifically, the sigma filter, which was originally designed for nonlinear filtering, is extended to generate edge proximity information. Different from other adaptive filtering-based methods, whose filters typically use a fixed small window but flexible weights, this sigma filter adaptively switches between small and large windows. The adaptation is designed for removing ringing artifacts only, so the algorithm cannot be used for de-blocking. Overall, the proposed algorithm achieves a good balance among removing ringing artifacts, preserving edges and details, and computational complexity.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hao Pan "Reduction of MPEG ringing artifacts using adaptive sigma filter", Proc. SPIE 6077, Visual Communications and Image Processing 2006, 607722 (19 January 2006);


On edge detector using local histogram analysis
Proceedings of SPIE (June 23 2003)
Efficient algorithm for diffuse edge detection
Proceedings of SPIE (July 08 1994)
Compound-edge-detection method
Proceedings of SPIE (June 07 1996)
Edge detection using ant colony system algorithm
Proceedings of SPIE (June 08 2012)

Back to Top