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Abstract:
A system emulating the functionality of a moving eye (hence
the name "oculo-motor system") has been built and successfully
tested. It is made of an optical device for shifting the field of
view of an image sensor by up to 45 degrees in any direction, four
neuromorphic analog VLSI circuits implementing an oculo-motor
control loop, and some off-the-shelf electronics. The custom
integrated circuits communicate with each other primarily by
non-arbitrated address-event buses. The system implements the
behaviors of saliency-based saccadic exploration, and smooth
pursuit of light spots. The duration of saccades ranges from 45ms
to 100ms, which is comparable to human eye performance. Smooth
pursuit operates on light sources moving at up to 50 degrees per
second in the visual field.
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