منابع مشابه
Compressive Computation in Analog VLSI Motion Sensors
We introduce several di erent focal plane analog VLSI motion sensors developed in the past. We show how their pixel-parallel architecture can be used to extract low-dimensional information from a higher dimensional data set. As an example we present an algorithm and corresponding experiments to compute the focus of expansion, focus of contraction and the axis of rotation from natural visual inp...
متن کاملNeuromorphic Analog VLSI Sensors for 2-D Direction of Motion
Optical ow elds are a primary source of information about the visual scene in technical and biological systems. In a step towards a system for real time scene analysis we have developed two new algorithms for the parallel computation of the direction of motion eld in 2-D. We have successfully implemented these algorithms in analog VLSI hardware such that all processing is performed in the focal...
متن کاملReal Time Ego-Motion Estimation with Neuromorphic Analog VLSI Sensors
An analog VLSI (aVLSI) sensor with on-board focal plane smart sensor pixels for the analysis of visual motion is used for estimating ego-motion. The sensor has remarkable properties: the on-chip information processing is performed in parallel and in real time, the sensor is small, inexpensive and consumes very little power, incorporating mechanisms similar to those found in neural systems. In s...
متن کاملAnalog CMOS Velocity Sensors
A family of analog CMOS velocity sensors is described which measures the velocity of a moving edge by computing its time of travel between adjacent pixels. These sensors are compact, largely invariant to illumination over a wide range, sensitive to edges with very low contrast, and responsive to several orders of magnitude of velocity. Two successful one-dimensional velocity sensors are describ...
متن کاملAn analog electronic cochlea
Absfracf-An engineered system that hears, such as a speech recognizer, can be designed by modeling the cochlea, or inner ear, and higher levels of the auditory nervous system. To he useful in such a system, a model of the cochlea should incorporate a variety of known effects, such as an asymmetric low-passibandpass response at each output channel, a short ringing time, and active adaptation to ...
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ژورنال
عنوان ژورنال: Transactions of the Society of Instrument and Control Engineers
سال: 1991
ISSN: 0453-4654
DOI: 10.9746/sicetr1965.27.729