Reducing blocking artifacts within vector quantization algorithms

Marshall A. Robers*, Aggelos K Katsaggelos

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Vector quantization (VQ) provides a fast, low-power image compression technique for video communication products. However, since VQ techniques operate on each block of the image separately, they have been criticized for producing visually-disturbing blocking artifacts, especially at low bitrates. In this paper, we present a VQ technique which uses hexagonally-shaped vectors to greatly reduce blocking artifacts. The effectiveness of the technique is demonstrated experimentally.

Original languageEnglish (US)
Pages (from-to)1118-1123
Number of pages6
JournalIEEE Transactions on Consumer Electronics
Volume43
Issue number4
DOIs
StatePublished - Dec 1 1997

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering

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