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Proceedings Paper

Merging Ultrasonic Sensor Readings Into A Consistent Environment Model
Author(s): H. Peremans .; J. Van Campenhout
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Paper Abstract

The algorithm presented in this paper constructs a geometric model of the environment using ultrasonic sensors. To do this in a reliable way, it has to take different error sources into account. Unlike other approaches, where a low-level, pixel based, probabilistic model is constructed to represent the uncertainty arising from false measurements, a high level, geometric, model is constructed. It is shown that a high level model, besides being faster to construct, is more appropriate for taking into account the typical characteristics of ultrasonic sensors. The algorithm detects and eliminates inconsistent measurements by combining evidence gathered from different points of view. This is made possible by extracting from the measurements not only information concerning the position of obstacles, but also information about regions that must be empty when seen from a certain angle. To conclude, some examples of the behaviour of this algorithm in real-world situations are presented.

Paper Details

Date Published: 1 March 1990
PDF: 8 pages
Proc. SPIE 1193, Intelligent Robots and Computer Vision VIII: Systems and Applications, (1 March 1990); doi: 10.1117/12.969826
Show Author Affiliations
H. Peremans ., State University of Ghent (Belgium)
J. Van Campenhout, State University of Ghent (Belgium)


Published in SPIE Proceedings Vol. 1193:
Intelligent Robots and Computer Vision VIII: Systems and Applications
Bruce G. Batchelor, Editor(s)

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