Real-Time Shape Measurement by Unwrapping Method Using Aliasing |
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| Journal | Key Engineering Materials (Volumes 326 - 328) |
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| Volume | Experimental Mechanics in Nano and Biotechnology |
| Edited by | Soon-Bok Lee and Yun-Jae Kim |
| Pages | 31-34 |
| DOI | 10.4028/www.scientific.net/KEM.326-328.31 |
| Citation | Motoharu Fujigaki et al., 2006, Key Engineering Materials, 326-328, 31 |
| Online since | December, 2006 |
| Authors | Motoharu Fujigaki, Toshio Toyotake, Toru Matui, Yoshiharu Morimoto |
| Keywords | Aliasing, Fourier Transform, Grating Projection, Phase Unwrapping, Real-Time, Shape Measurement |
| Abstract | We previously proposed a real-time shape measurement method using two-component synthesis grating projection. In the method, phase unwrapping of the projected grating is performed by using aliasing of the Fourier spectrum of the grating images. It requires only 5 images obtained for one-cycle phase-shifting. Each phase in the two-component can be extracted from only 5 phase-shifted grating images. In this paper, we propose a real-time shape measurement system. The theory, the algorithm for the analysis and the experimental results are shown. |
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