Reducing blocking artifacts within vector quantization algorithms

Marshall A. Robers; Aggelos K. Katsaggelos

doi:10.1109/30.642379

Reducing blocking artifacts within vector quantization algorithms

Marshall A. Robers^*, Aggelos K. Katsaggelos

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-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 language	English (US)
Pages (from-to)	1118-1123
Number of pages	6
Journal	IEEE Transactions on Consumer Electronics
Volume	43
Issue number	4
DOIs	https://doi.org/10.1109/30.642379
State	Published - 1997

ASJC Scopus subject areas

Media Technology
Electrical and Electronic Engineering

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10.1109/30.642379

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title = "Reducing blocking artifacts within vector quantization algorithms",

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.",

author = "Robers, {Marshall A.} and Katsaggelos, {Aggelos K.}",

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AB - 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.

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Reducing blocking artifacts within vector quantization algorithms

Abstract

ASJC Scopus subject areas

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