Title :
A CMOS imager with new focal-plane motion detectors
Author :
Okamoto, F. ; Fujimoto, Y. ; Nagata, T. ; Furumiya, M. ; Hatano, K. ; Nakashiba, Y. ; Yotsuyanagi, M.
Author_Institution :
NEC Corp., Kanagawa, Japan
Abstract :
A CMOS imager with new focal-plane motion detectors has been developed as the front-end of vision systems. The chip generates both a normal video signal and a local image signal; i.e. the local area where the motion is detected is automatically scanned. Key technologies include a unity-gain two-port pixel, sparsely-placed motion detectors, and a multistage column readout circuit. A 5.8/spl times/8.7 mm/sup 2/ chip fabricated by using 0.35 /spl mu/m CMOS process contains 192/spl times/192 pixels and 7/spl times/7 motion detectors.
Keywords :
CMOS image sensors; computer vision; focal planes; real-time systems; 0.35 micron; 192 pixel; 36864 pixel; CMOS imager; focal-plane motion detectors; local area; local image signal; multistage column readout circuit; normal video signal; sparsely-placed motion detectors; unity-gain two-port pixel; vision system front-end; Circuits; Detectors; Laboratories; Machine vision; Motion detection; Real time systems; Sensor arrays; Sensor systems; Silicon; Smart pixels;
Conference_Titel :
VLSI Circuits, 1999. Digest of Technical Papers. 1999 Symposium on
Conference_Location :
Kyoto, Japan
Print_ISBN :
4-930813-95-6
DOI :
10.1109/VLSIC.1999.797264
