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Proceedings Paper

Wavelet transcoding of block DCT-based images through block transform domain processing
Author(s): Uipil Chong; Seung P. Kim
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Paper Abstract

In this paper, we propose a method of efficient computation of wavelet coefficients from DCT-based coded image/video signals. Block transform domain filtering is well suited for transcoding of such data. First direct transform domain processing removes the necessary of inverse transform. Second, the number of nonzero elements in the blocks are significantly smaller than spatial domain. Therefore, the amount of computation can be reduced accordingly. Finally, the block processing algorithm provides a parallel processing method. Hence a fast implementation of the algorithm is well suited.

Paper Details

Date Published: 23 October 1996
PDF: 8 pages
Proc. SPIE 2825, Wavelet Applications in Signal and Image Processing IV, (23 October 1996); doi: 10.1117/12.255294
Show Author Affiliations
Uipil Chong, Polytechnic Univ. (United States)
Seung P. Kim, Polytechnic Univ. (United States)


Published in SPIE Proceedings Vol. 2825:
Wavelet Applications in Signal and Image Processing IV
Michael A. Unser; Akram Aldroubi; Andrew F. Laine, Editor(s)

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