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Proceedings Paper

Method to convert image resolution using M-band-extended QMF banks
Author(s): Masahisa Kawashima; Hideyoshi Tominaga
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Paper Abstract

A new method to convert image resolution using M-band extended QMF is proposed. Due to the parallel structure ofthe filter banks, the conversion ratio of the proposed method is not constrained to be a power of 2. Moreover, since theproposed method performs the filtering of signals by convolution operations, the resolution converted image by theproposed scheme is free from the aliasing which occurs in that by the DCT method. Judging from the experimentalresults, it is concluded that the resolution converted image by the proposed scheme is superior to that by the DCTmethod.

Paper Details

Date Published: 1 November 1991
PDF: 5 pages
Proc. SPIE 1605, Visual Communications and Image Processing '91: Visual Communication, (1 November 1991); doi: 10.1117/12.50251
Show Author Affiliations
Masahisa Kawashima, Waseda Univ. (Japan)
Hideyoshi Tominaga, Waseda 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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