An adaptive POCS algorithm for compression artifacts removal

Tomislav Kartalov, Zoran A. Ivanovski, Ljupcho Panovski, Lina Karam

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Citations (Scopus)

Abstract

An effective compression artifacts removal algorithm is proposed based on the theory of projections onto convex sets (POCS). It includes a block classification procedure, a ringing detection procedure, prediction of the spatial distribution of the quantization errors and estimation of the visibility of the compression artifacts. Information gained from both the spatial and transform domains, is incorporated into adaptive projections. Experiments performed on JPEG-compressed images, demonstrate the effectiveness of the proposed algorithm in suppressing both blocking and ringing artifacts, as well as the ability of the algorithm to preserve the image sharpness.

Original languageEnglish (US)
Title of host publication2007 9th International Symposium on Signal Processing and its Applications, ISSPA 2007, Proceedings
DOIs
StatePublished - 2007
Event2007 9th International Symposium on Signal Processing and its Applications, ISSPA 2007 - Sharjah, United Arab Emirates
Duration: Feb 12 2007Feb 15 2007

Other

Other2007 9th International Symposium on Signal Processing and its Applications, ISSPA 2007
CountryUnited Arab Emirates
CitySharjah
Period2/12/072/15/07

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Visibility
Spatial distribution
Experiments

ASJC Scopus subject areas

  • Signal Processing

Cite this

Kartalov, T., Ivanovski, Z. A., Panovski, L., & Karam, L. (2007). An adaptive POCS algorithm for compression artifacts removal. In 2007 9th International Symposium on Signal Processing and its Applications, ISSPA 2007, Proceedings [4555574] https://doi.org/10.1109/ISSPA.2007.4555574

An adaptive POCS algorithm for compression artifacts removal. / Kartalov, Tomislav; Ivanovski, Zoran A.; Panovski, Ljupcho; Karam, Lina.

2007 9th International Symposium on Signal Processing and its Applications, ISSPA 2007, Proceedings. 2007. 4555574.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kartalov, T, Ivanovski, ZA, Panovski, L & Karam, L 2007, An adaptive POCS algorithm for compression artifacts removal. in 2007 9th International Symposium on Signal Processing and its Applications, ISSPA 2007, Proceedings., 4555574, 2007 9th International Symposium on Signal Processing and its Applications, ISSPA 2007, Sharjah, United Arab Emirates, 2/12/07. https://doi.org/10.1109/ISSPA.2007.4555574
Kartalov T, Ivanovski ZA, Panovski L, Karam L. An adaptive POCS algorithm for compression artifacts removal. In 2007 9th International Symposium on Signal Processing and its Applications, ISSPA 2007, Proceedings. 2007. 4555574 https://doi.org/10.1109/ISSPA.2007.4555574
Kartalov, Tomislav ; Ivanovski, Zoran A. ; Panovski, Ljupcho ; Karam, Lina. / An adaptive POCS algorithm for compression artifacts removal. 2007 9th International Symposium on Signal Processing and its Applications, ISSPA 2007, Proceedings. 2007.
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