Frequency domain post-processing technique based on POCS

Yoon Kim, Chun Su Park, Sung-Jea Ko

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A novel post-processing technique in the DCT domain, based on the theory of the projection onto convex sets (POCS), to reduce the blocking artifacts in the block discrete cosine transform (BDCT)-coded images, is proposed. Computer simulation results indicate that the proposed scheme performs better than conventional post-processing algorithms. Furthermore, the proposed algorithm can be implemented without DCT/IDCT operations. Estimates of computation savings vary between 41 and 64% depending on the task.

Original languageEnglish
Pages (from-to)1583-1584
Number of pages2
JournalElectronics Letters
Volume39
Issue number22
DOIs
Publication statusPublished - 2003 Nov 22

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Discrete cosine transforms
Processing
Computer simulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Frequency domain post-processing technique based on POCS. / Kim, Yoon; Park, Chun Su; Ko, Sung-Jea.

In: Electronics Letters, Vol. 39, No. 22, 22.11.2003, p. 1583-1584.

Research output: Contribution to journalArticle

Kim, Yoon ; Park, Chun Su ; Ko, Sung-Jea. / Frequency domain post-processing technique based on POCS. In: Electronics Letters. 2003 ; Vol. 39, No. 22. pp. 1583-1584.
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