Title :
Image-motion detection using analog VLSI
Author :
Chong, Chu Phoon ; Salama, C. Andre T ; Smith, Kenneth C.
Author_Institution :
Dept. of Electr. Eng., Toronto Univ., Ont., Canada
fDate :
1/1/1992 12:00:00 AM
Abstract :
Motion detection by differentiating the output currents of photosensors arranged in a 2D array is described. Subnanoampere current differentiation is made possible by the use of a novel current-mirror (CM) differentiator that requires only four MOSFETs. The pixel density of the motion-detecting imager is higher than 40 pixels/mm2. Experimental results of the CM differentiator are reported
Keywords :
CMOS integrated circuits; VLSI; differentiating circuits; linear integrated circuits; picture processing; 2D array; analog CMOS chips; analog VLSI; current mirror differentiator; four MOSFET circuit; image motion detection; motion-detecting imager; photosensor arrays; pixel density; Animals; Image converters; Image processing; MOSFETs; Motion detection; Neurons; Photodiodes; Pixel; Signal generators; Switches; Very large scale integration; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
