In-loop selective processing for contour artefact reduction in video coding

K. Yoo, H. Song, K. Sohn

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Proposed is an in-loop decontouring algorithm that utilises block-based processing for video coding. In order to avoid uniform filtering that brings about unnecessary processing, candidate blocks that may contain noticeable false contours using different kinds of features in a block are sequentially refined. Then, pseudorandom noise masking is applied to them to reduce contour artefacts. It is demonstrated that visual quality could be efficiently improved with a negligible rate-distortion (RD) loss.

Original languageEnglish
Pages (from-to)1020-1022
Number of pages3
JournalElectronics Letters
Issue number20
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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