A Silicon Implementation of the Fly's Optomotor Control System

Neural Computation 2000 40 cites
2000:12001:22002:22003:32004:32005:42006:42007:42008:42009:42010:42011:5
2000 2011
40

Reid R. Harrison, Christof Koch

Abstract

Flies are capable of stabilizing their body during free flight by using visual motion information to estimate self-rotation. We have built a hardware model of this optomotor control system in a standard CMOS VLSI process. The result is a small, low-power chip that receives input directly from the real world through on-board photoreceptors and generates motor commands in real time. The chip was tested under closed-loop conditions typically used for insect studies. The silicon system exhibited stable control sufficiently analogous to the biological system to allow for quantitative comparisons.

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