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A silicon retina is an intelligent vision sensor that can execute real-time image pre-processing by using a parallel analog circuit that mimics the structure of the neuronal circuits in a vertebrate retina. In order to enhance robustness against changes in lighting conditions, we designed and fabricated a frame-based, wide dynamic range silicon retina with an active pixel sensor that approximates...
A neuromorphic vision sensor was designed to detect an approaching object in real time. To respond selectively to looming stimuli, the sensor employed an algorithm inspired by a visual nervous system in the locust, which can avoid a collision robustly by use of visual information. An electronic circuit model was designed to mimick the architecture of the locust nervous system. Computer simulations...
We describe a multi-chip analog VLSI vision sensor consisting of a silicon retina and an orientation chip that is tuned to particular orientations and spatial frequency bands of input image. The silicon retina emulates the neural circuits of the vertebrate retina and exhibits a Laplacian-Gaussian-like receptive field. The orientation chip receives output image of the silicon retina and aggregates...
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