15 March 1994 Comparison of methods for 3D laser calibration
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Proceedings Volume 2065, Optics, Illumination, and Image Sensing for Machine Vision VIII; (1994); doi: 10.1117/12.169382
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States
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.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kwangik Hyun, Woon Y. Chung, Lester A. Gerhardt, "Comparison of methods for 3D laser calibration", Proc. SPIE 2065, Optics, Illumination, and Image Sensing for Machine Vision VIII, (15 March 1994); doi: 10.1117/12.169382; https://doi.org/10.1117/12.169382
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KEYWORDS
Calibration

Cameras

Error analysis

Laser systems engineering

Mirrors

Active remote sensing

Computing systems

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