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Proceedings Paper

Using M-Transformation to Improve Performance of DCT Zonal Coding
Author(s): Yoshitaka Morikawa; Nobumoto Yamane; Hiroshi Hamada
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Paper Abstract

The DCT zonal coding compares unfavorably with the DCT threshold coding, in respect of coding performances. This is due to quantization losses of the Max quantizer caused by long-tailed distributions of DCT coefficients. This paper proposes a method to compensate for the losses and to improve performances of the zonal coding, by applying M-transformation to the DCT coefficient sample sequences. Simulation results have shown the attained improvements remarkable.

Paper Details

Date Published: 1 November 1989
PDF: 11 pages
Proc. SPIE 1199, Visual Communications and Image Processing IV, (1 November 1989); doi: 10.1117/12.970153
Show Author Affiliations
Yoshitaka Morikawa, Okayama University (Japan)
Nobumoto Yamane, Okayama University (Japan)
Hiroshi Hamada, Okayama University (Japan)

Published in SPIE Proceedings Vol. 1199:
Visual Communications and Image Processing IV
William A. Pearlman, Editor(s)

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