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Proceedings Paper

Overlapping block transform for offset-sampled image compression
Author(s): Yoshitaka Morikawa; Nobumoto Yamane; Hiroshi Hamada
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Paper Abstract

In this paper, an overlapping block transform coding for offset-sampled image compression, called OS-OBT, is proposed. First, OS-OBT is developed from the theory of frequency analysis/synthesis. In the second, a fast algorithm for OS-OBT is devised, which is twice faster than the usual DCT. In the last, simulations demonstrate that coding performance of OS- OBT is superior to that of DCT and block artifacts decrease in OS-OBT.

Paper Details

Date Published: 1 November 1991
PDF: 11 pages
Proc. SPIE 1605, Visual Communications and Image Processing '91: Visual Communication, (1 November 1991); doi: 10.1117/12.50272
Show Author Affiliations
Yoshitaka Morikawa, Okayama Univ. (Japan)
Nobumoto Yamane, Okayama Univ. (Japan)
Hiroshi Hamada, Okayama Univ. (Japan)

Published in SPIE Proceedings Vol. 1605:
Visual Communications and Image Processing '91: Visual Communication
Kou-Hu Tzou; Toshio Koga, Editor(s)

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