Analog VLSI and neural systems
Analog VLSI and neural systems
Neuromorphic systems engineering: neural networks in silicon
Neuromorphic systems engineering: neural networks in silicon
Neural Information Processing and VLSI
Neural Information Processing and VLSI
Computer Vision
Analog MOS Circuit Systems Performing the Visual Tracking with Bio-Inspired Simple Networks
MICRONEURO '99 Proceedings of the 7th International Conference on Microelectronics for Neural, Fuzzy and Bio-Inspired Systems
Analog Integrated 2-D Optical Flow Sensor
Analog Integrated Circuits and Signal Processing
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We propose simple analog MOS circuits producing one-dimensional optical flows aiming at the realization of compact motion-sensing circuits. In the proposed circuit, the optical flow is computed by a number of local motion sensors, as in biological motion-sensing systems. Mimicking the structure of biological motion detectors made the circuit structure quite simple, compared with conventional velocity sensing circuits. Extensive simulation results using simulation program with integrated circuit emphasis (SPICE) and experimental results indicated that the proposed circuits could compute local velocities of a moving light spot and showed direction selectivity for the moving spot, which implies that a high-resolution motion-sensing chip can be realized using standard analog very large-scale integration technology.