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Title: Gallium arsenide multiplierless filter bank for two dimensional discrete wavelet transform (2D-DWT) computation
Authors: López Feliciano, José Francisco 
Lalchand Khemchandani, Sunil 
Tobajas, F. 
López, S. 
Núñez, A. 
Sarmiento, R. 
UNESCO Clasification: 3305 Tecnología de la construcción
Keywords: Image compression
Image coding
Digital image storage
Issue Date: 2001
Journal: Proceedings of SPIE - The International Society for Optical Engineering 
Conference: Conference on Electronics and Structures for MEMS II 
Abstract: In this paper, the implementation and results obtained for a Gallium Arsenide (GaAs) multiplierless filter bank with applications on Two Dimensional Discrete Wavelet Transform (2D-DWT) are presented. Among the benefits offered by this architecture, its configurable characteristics, which allow affording input images with different sizes, as well as the ability to compute up to 10 levels of sub-band decomposition, are outlined. Different types of filters have been studied in order to select the one that best matches the requested applications. This election is based on a compromise among compactness of relevant image information in the LL sub-band, compression algorithms and VLSI simplicity. As a result, a filter running at 250 MHz with 3.2 W of power dissipation is obtained, allowing CCIR applications.
ISBN: 0-8194-4321-2
ISSN: 0277-786X
DOI: 10.1117/12.449157
Source: Proceedings of SPIE - The International Society for Optical Engineering[ISSN 0277-786X],v. 4591, p. 273-280
Appears in Collections:Actas de congresos
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