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Proceedings Paper

Fast and robust range data acquisition in a low-cost environment
Author(s): T. G. Stahs; F. M. Wahl
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Paper Abstract

It has been shown earlier that efficient active triangulation methods for range data acquisition can be devised by employing an appropriate time-space encoding. In this paper we show that the necessary computational burden to compute range values by means of these techniques can be reduced drastically by introducing weak geometrical constraints for the projector camera configurations. Furthermore, we suggest the concept of a virtual measurement coordinate system reducing the triangulation to simple one-dimensional LUT operations. Thus, the range acquisition technique can be implemented very fast in a low cost PC based image processing environment. We show how to calibrate the system and give some experimental results.

Paper Details

Date Published: 1 August 1990
PDF: 8 pages
Proc. SPIE 1395, Close-Range Photogrammetry Meets Machine Vision, 13951R (1 August 1990); doi: 10.1117/12.2294306
Show Author Affiliations
T. G. Stahs, Technical Univ. of Braunschweig (Germany)
F. M. Wahl, Technical Univ. of Braunschweig (Germany)

Published in SPIE Proceedings Vol. 1395:
Close-Range Photogrammetry Meets Machine Vision
Armin Gruen; Emmanuel P. Baltsavias, Editor(s)

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