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Proceedings Paper

Zero-phase locking for phase-shifted dithering techniques
Author(s): Junfei Dai; Song Zhang
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Paper Abstract

Zero phase line is extremely important for precision measurement especially for calibrations since zero phase line is usually used as reference point for 3D reconstruction. However, the existing dithering technique often has difficult to maintain this phase line when the projector is at different defocusing amounts. In this paper, we will propose a dithered optimization method that will overcome this difficulty. Mathematical proof as well as simulation data will be presented to verify the success of the proposed method.

Paper Details

Date Published: 17 July 2015
PDF: 5 pages
Proc. SPIE 9524, International Conference on Optical and Photonic Engineering (icOPEN 2015), 95240J (17 July 2015); doi: 10.1117/12.2186285
Show Author Affiliations
Junfei Dai, Zhejiang Univ. (China)
Song Zhang, Purdue Univ. (United States)

Published in SPIE Proceedings Vol. 9524:
International Conference on Optical and Photonic Engineering (icOPEN 2015)
Anand K. Asundi; Yu Fu, Editor(s)

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