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Proceedings Paper

Comparison of methods for 3D laser calibration
Author(s): Kwangik Hyun; Woon Y. Chung; Lester A. Gerhardt
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Paper Abstract

Depth estimation using a laser-based vision system requires calibration of both the laser and the camera. A Least-Square Error (LSE) method is compared with a geometric calibration. The LSE method incorporates the inherent non-linear behavior of lasers, while the geometric method does not. Therefore, the LSE method results in a smaller average error. The same LSE method can also be used for camera calibration. Using the calibrated laser and the calibrated camera, the depth map of a 3-D curved surface is obtained, using striped laser lines as a structured lighting source. This paper also proposes an easy way of solving the point correspondence problem.

Paper Details

Date Published: 15 March 1994
PDF: 20 pages
Proc. SPIE 2065, Optics, Illumination, and Image Sensing for Machine Vision VIII, (15 March 1994); doi: 10.1117/12.169382
Show Author Affiliations
Kwangik Hyun, Rensselaer Polytechnic Institute (United States)
Woon Y. Chung, Rensselaer Polytechnic Institute (United States)
Lester A. Gerhardt, Rensselaer Polytechnic Institute (United States)

Published in SPIE Proceedings Vol. 2065:
Optics, Illumination, and Image Sensing for Machine Vision VIII
Donald J. Svetkoff, Editor(s)

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