Improved POCS-based deblocking technique using wavelet transform in block coded image

Goo Rak Kwon, Hyo Kak Kim, Chun Soo Park, Yoon Kim, Sung-Jea Ko

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

Abstract

This paper presents a improved POCS-based deblocking technique, based on the theory of the projection onto convex sets (POCS) to reduce the blocking artifacts in decoded images. We propose a new smoothness constraint set (SCS) and its projection operator in the wavelet transform (WT) domain to remove unnecessary high-frequency components caused by blocking artifacts. In order to eliminate the blocking artifacts component while preserving the original edge component, we also propose a significant coefficient decision method (SCDM)for fast and efficient performance. Experimental results show that the proposed method can not only achieve a significantly enhanced subjective quality but also increase the PSNR improvement in the reconstructed image.

Original languageEnglish
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Pages676-685
Number of pages10
Volume4261 LNCS
Publication statusPublished - 2006 Dec 11
EventPCM 2006: 7th Pacific Rim Conference on Multimedia - Hangzhou, China
Duration: 2006 Nov 22006 Nov 4

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4261 LNCS
ISSN (Print)03029743
ISSN (Electronic)16113349

Other

OtherPCM 2006: 7th Pacific Rim Conference on Multimedia
CountryChina
CityHangzhou
Period06/11/206/11/4

Fingerprint

Projection onto Convex Sets
Wavelet Analysis
Artifacts
Wavelet transforms
Wavelet Transform
Mathematical operators
Projection Operator
Smoothness
Eliminate
Experimental Results
Coefficient

ASJC Scopus subject areas

  • Computer Science(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Theoretical Computer Science

Cite this

Kwon, G. R., Kim, H. K., Park, C. S., Kim, Y., & Ko, S-J. (2006). Improved POCS-based deblocking technique using wavelet transform in block coded image. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 4261 LNCS, pp. 676-685). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 4261 LNCS).

Improved POCS-based deblocking technique using wavelet transform in block coded image. / Kwon, Goo Rak; Kim, Hyo Kak; Park, Chun Soo; Kim, Yoon; Ko, Sung-Jea.

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 4261 LNCS 2006. p. 676-685 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 4261 LNCS).

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

Kwon, GR, Kim, HK, Park, CS, Kim, Y & Ko, S-J 2006, Improved POCS-based deblocking technique using wavelet transform in block coded image. in Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). vol. 4261 LNCS, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 4261 LNCS, pp. 676-685, PCM 2006: 7th Pacific Rim Conference on Multimedia, Hangzhou, China, 06/11/2.
Kwon GR, Kim HK, Park CS, Kim Y, Ko S-J. Improved POCS-based deblocking technique using wavelet transform in block coded image. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 4261 LNCS. 2006. p. 676-685. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
Kwon, Goo Rak ; Kim, Hyo Kak ; Park, Chun Soo ; Kim, Yoon ; Ko, Sung-Jea. / Improved POCS-based deblocking technique using wavelet transform in block coded image. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 4261 LNCS 2006. pp. 676-685 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
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