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Proceedings Paper

Phase errors elimination in compact digital holoscope (CDH) based on a reasonable mathematical model
Author(s): Yongfu Wen; Weijuan Qu; Cheeyuen Cheng; Zhaomin Wang; Anand Asundi
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Paper Abstract

In the compact digital holoscope (CDH) measurement process, theoretically, we need to ensure the distances between the reference wave and object wave to the hologram plane exactly match. However, it is not easy to realize in practice due to the human factors. This can lead to a phase error in the reconstruction result. In this paper, the strict theoretical analysis of the wavefront interference is performed to demonstrate the mathematical model of the phase error and then a phase errors elimination method is proposed based on the advanced mathematical model, which has a more explicit physical meaning. Experiments are carried out to verify the performance of the presented method and the results indicate that it is effective and allows the operator can make operation more flexible.

Paper Details

Date Published: 4 March 2015
PDF: 9 pages
Proc. SPIE 9302, International Conference on Experimental Mechanics 2014, 930207 (4 March 2015); doi: 10.1117/12.2077044
Show Author Affiliations
Yongfu Wen, Ngee Ann Polytechnic (Singapore)
Weijuan Qu, Ngee Ann Polytechnic (Singapore)
Cheeyuen Cheng, Ngee Ann Polytechnic (Singapore)
Zhaomin Wang, Ngee Ann Polytechnic (Singapore)
Nanyang Technological Univ. (Singapore)
Anand Asundi, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 9302:
International Conference on Experimental Mechanics 2014
Chenggen Quan; Kemao Qian; Anand Asundi; Fook Siong Chau, Editor(s)

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