Title :
Silicon range finder-a realtime range finding VLSI sensor
Author :
Sato, Kosuke ; Yokoyama, Atsushi ; Inokuchi, Seiji
Author_Institution :
Dept. of Syst. Eng., Osaka Univ., Japan
Abstract :
In this paper, we present a range-imaging VLSI vision sensor which is able to measure the 3D position in realtime. Photodiodes and an operational circuit are integrated into each pixel to function as a micro-rangefinder in mixed analog-digital technology. A 2D array chip of this micro-rangefinders is able to capture fully parallel a dynamic range image. A complementary pair of photodiodes has the advantage of capturing reliable 3D data without disturbance due to the temperature drift, the ambient light, the manufacturing dispersion and other noises. The prototype system gives us a 24×24 range image with high accuracy at video frame-rate
Keywords :
CMOS integrated circuits; VLSI; elemental semiconductors; image sensors; intelligent sensors; laser ranging; mixed analogue-digital integrated circuits; optical sensors; photodiodes; position measurement; real-time systems; silicon; 2D array chip; 3D position measurement; Si; Si range finder; complementary pair; micro-rangefinder; mixed analog-digital technology; photodiode array; range-imaging vision sensor; realtime range finding VLSI sensor; video frame-rate; Analog-digital conversion; Dynamic range; Integrated circuit measurements; Integrated circuit reliability; Integrated circuit technology; Photodiodes; Position measurement; Semiconductor device measurement; Silicon; Very large scale integration;
Conference_Titel :
Custom Integrated Circuits Conference, 1994., Proceedings of the IEEE 1994
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-1886-2
DOI :
10.1109/CICC.1994.379706
