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Proceedings Paper

Development of real-time shape measurement system using whole-space tabulation method
Author(s): Motoharu Fujigaki; Akihiro Takagishi; Toru Matui; Yoshiharu Morimoto
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Paper Abstract

In this paper, a real-time shape measurement system using pixel-by-pixel calibration tables is developed. We proposed a shape measurement method using pixel-by-pixel calibration tables produced with multiple reference planes. In this method, all the relationships between the phase of the projected grating and the spatial coordinates can be obtained for each pixel. This method excludes a lens distortion and intensity errors of the projected grating in measurement results theoretically. Tabulation makes short-time measurement possible. The linearity of each pixel of a camera is also corrected using pixel-by-pixel calibration tables for linearity immediately after grabbing images.

Paper Details

Date Published: 29 August 2008
PDF: 8 pages
Proc. SPIE 7066, Two- and Three-Dimensional Methods for Inspection and Metrology VI, 706606 (29 August 2008); doi: 10.1117/12.795300
Show Author Affiliations
Motoharu Fujigaki, Wakayama Univ. (Japan)
Akihiro Takagishi, Wakayama Univ. (Japan)
Toru Matui, Wakayama Univ. (Japan)
Yoshiharu Morimoto, Wakayama Univ. (Japan)


Published in SPIE Proceedings Vol. 7066:
Two- and Three-Dimensional Methods for Inspection and Metrology VI
Peisen S. Huang; Toru Yoshizawa; Kevin G. Harding, Editor(s)

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