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Proceedings Paper

Real-time implementation of a differential range finder
Author(s): Ramesh M. Rangachar; Tsai Hong Hong; Martin Herman; Jasper Lupo
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Paper Abstract

A scheme is presented for the estimation of differential ranges on the basis of optical flow along a known direction, giving attention to the factors affecting the accuracy of results and various spatial and temporal smoothing algorithms employed to enhance the method's accuracy. It is found that while the use of edge detectors reduces noise, a priori knowledge of the environment improves the method's range discriminability. The method has been implemented on a real-time, high speed pipelined image processing engine capable of processing 60 image frames/sec, using a horizontally moving camera which generates optical flow along a scan line.

Paper Details

Date Published: 1 September 1990
PDF: 12 pages
Proc. SPIE 1295, Real-Time Image Processing II, (1 September 1990); doi: 10.1117/12.21239
Show Author Affiliations
Ramesh M. Rangachar, National Institute of Standards and Technology (United States)
Tsai Hong Hong, National Institute of Standards and Technology and American Univ. (United States)
Martin Herman, National Institute of Standards and Technology (United States)
Jasper Lupo, Defense Advanced Research Projects Agency (United States)


Published in SPIE Proceedings Vol. 1295:
Real-Time Image Processing II
Richard D. Juday, Editor(s)

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