Experiments with Single-Pass Adaptive Vector Quantization

Authors:
F. Rizzo;J. A. Storer;B. Carpentieri
Affiliations:
-;-;-
Venue:
DCC '99 Proceedings of the Conference on Data Compression
Year:
1999

Citing 0
Cited 1

Overlap and channel errors in adaptive vector quantization for image coding

Information Sciences—Informatics and Computer Science: An International Journal

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Abstract

Constantinescu and Storer introduced an adaptive vector quantization algorithm (AVQ) that combines adaptive dictionary techniques with vector quantization (VQ). The algorithm typically equals or exceeds thecompression of the JPEG standard on different classes of images and it often out-performs traditional trained VQ. In this paper we show how it is possible to improve AVQ on the class of images on which JPEG does best (i.e., "magazine photographs"). The improvement is possible by exploring the similarities into the dictionary built by AVQ.