A Very Fast VLSI Rangefinder

Takeo Kanade, A. Gruss, and L.R. Carley
Proceedings of the 1991 IEEE International Conference on Robotics and Automation (ICRA '91), April, 1991, pp. 1322-1329.


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Abstract
The authors present a very fast lightstripe rangefinder based on an IC array of photoreceptor and analog signal processor cells which acquires 1000 frames of range image per second-two orders of magnitude faster than currently available rangefinding methods. Unlike a conventional lightstripe range-finder, which obtains a frame of range image by the step-and-repeat process of projecting a stripe and grabbing and analyzing a camera image, the VLSI sensor array of this rangefinder gathers range data in parallel as a scene is swept continuously by a moving stripe. Each cell continuously monitors the output of its photoreceptor, and detects and remembers the time at which it observed the peak incident light intensity during the sweep of the stripe. Prototype rangefinding systems have been built using a 28*32 array of these sensing elements.

Notes
Associated Center(s) / Consortia: Vision and Autonomous Systems Center
Associated Project(s): Fast VLSI Range-Image Sensor

Text Reference
Takeo Kanade, A. Gruss, and L.R. Carley, "A Very Fast VLSI Rangefinder," Proceedings of the 1991 IEEE International Conference on Robotics and Automation (ICRA '91), April, 1991, pp. 1322-1329.

BibTeX Reference
@inproceedings{Kanade_1991_2442,
   author = "Takeo Kanade and A. Gruss and L.R. Carley",
   title = "A Very Fast VLSI Rangefinder",
   booktitle = "Proceedings of the 1991 IEEE International Conference on Robotics and Automation (ICRA '91)",
   pages = "1322-1329",
   month = "April",
   year = "1991",
   volume = "2",
}