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Proceedings Paper

Analog multimode visual feature extraction retina
Author(s): Yang Ni; Jian Hong Guan
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Paper Abstract

We propose a multimode retina integrating image sensing, normalization, smoothing, differentiation and visual feature extraction by incorporating: 1) a histogram equalization function onto the sensor focal plane, which normalizes the image signal at the same dynamic range under different illumination conditions and results a constant signal amplitude facilitating the post processing; 2) a capacitive Gaussian network and a spatial differentiator, which offer a bandpass filtering on the normalized image; 3) a visual feature extraction, which extracts and localizes the areas enveloping objects of interest. This novel multimode retina, when interfaced with a digital processing unit, does a first step processing and information salient region extraction suited for many real-time vision tasks.

Paper Details

Date Published: 7 September 1998
PDF: 8 pages
Proc. SPIE 3410, Advanced Focal Plane Arrays and Electronic Cameras II, (7 September 1998); doi: 10.1117/12.324000
Show Author Affiliations
Yang Ni, Institut National des Telecommunications (France)
Jian Hong Guan, Institut National des Telecommunications (France)


Published in SPIE Proceedings Vol. 3410:
Advanced Focal Plane Arrays and Electronic Cameras II
Thierry M. Bernard, Editor(s)

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