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Image-motion detection using analog VLSI

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3 Author(s)
Chong, C.P. ; Dept. of Electr. Eng., Toronto Univ., Ont., Canada ; Salama, C.A.T. ; Smith, K.C.

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

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:27 ,  Issue: 1 )