Retinomorphic Vision Systems I: Pixel Design
I present and analyze test results from circuits that perform all four major operations performed by biological retinae using neurobiological principles: (1) continuous sensing for detection, (2) local automatic gain control for amplification, (3) spatiotemporal bandpass filtering for preprocessing, and (4) adaptive sampling for quantization. In the retinomorphic system that I describe, all these operations are performed at the pixel level, to eliminate redundancy, to reduce power dissipation, and to make efficient use of the capacity of the output channel.
© 1996 IEEE. I thank my advisor, Carver Mead, for sharing his insights into the operation of the nervous system, and my former advisor, Andreas Andreou for setting me on this path. This work is supported in part by the Office of Naval Research, by ARPA, by the Beckman Foundation, and by the Center for Neuromorphic Systems Engineering as a part of the National Science Foundation Engineering Research Center Program, and by the California Trade and Commerce Agency, Office of Strategic Technology.
Published - 00598464.pdf