3 June 1997 Biologically inspired analog wavelet analyzers
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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.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Geoffrey W. Brooks, Geoffrey W. Brooks, } "Biologically inspired analog wavelet analyzers", Proc. SPIE 3016, Human Vision and Electronic Imaging II, (3 June 1997); doi: 10.1117/12.274552; https://doi.org/10.1117/12.274552
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