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Proceedings Paper

Biologically inspired analog wavelet analyzers
Author(s): Geoffrey W. Brooks
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Paper Abstract

Retinal processing is known to condense space, time, and color information into three basic channels known as the rod, magnocellular, and parvoceliular channels. The magnocellular channel executes a spatial band-pass filter in the lower end of the spatial frequency spectrum, and the parvocellular channel executes a spatial band-pass filter in the higher end of the spectrum. In an analogous fashion, conventional wavelet analysis requires separate high-pass and low-pass filtering operations on data. Previous retinal designs have provided these filtering operations seen in natural processors. The rationale for such filters is presented along with concepts for implementing high-speed analog wavelet analyzers. These concepts are built on existing understanding of vision processing and previously demonstrated analog retinal design chips.

Paper Details

Date Published: 3 June 1997
PDF: 8 pages
Proc. SPIE 3016, Human Vision and Electronic Imaging II, (3 June 1997); doi: 10.1117/12.274552
Show Author Affiliations
Geoffrey W. Brooks, Air Force Wright Lab. (United States)

Published in SPIE Proceedings Vol. 3016:
Human Vision and Electronic Imaging II
Bernice E. Rogowitz; Thrasyvoulos N. Pappas, Editor(s)

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