Analog multimode visual feature extraction retina

Yang Ni; Jian Hong Guan

doi:10.1117/12.324000

7 September 1998 Analog multimode visual feature extraction retina

Yang Ni, Jian Hong Guan

Proceedings Volume 3410, Advanced Focal Plane Arrays and Electronic Cameras II; (1998) https://doi.org/10.1117/12.324000
Event: SYBEN-Broadband European Networks and Electronic Image Capture and Publishing, 1998, Zurich, Switzerland

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.

Citation Download Citation

Yang Ni and Jian Hong Guan "Analog multimode visual feature extraction retina", Proc. SPIE 3410, Advanced Focal Plane Arrays and Electronic Cameras II, (7 September 1998); https://doi.org/10.1117/12.324000

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