Zero-phase locking for phase-shifted dithering techniques

Junfei Dai; Song Zhang

doi:10.1117/12.2186285

17 July 2015 Zero-phase locking for phase-shifted dithering techniques

Junfei Dai, Song Zhang

Proceedings Volume 9524, International Conference on Optical and Photonic Engineering (icOPEN 2015); 95240J (2015) https://doi.org/10.1117/12.2186285
Event: International Conference on Optical and Photonic Engineering (icOPEN2015), 2015, Singapore, Singapore

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.

Citation Download Citation

Junfei Dai and Song Zhang "Zero-phase locking for phase-shifted dithering techniques", Proc. SPIE 9524, International Conference on Optical and Photonic Engineering (icOPEN 2015), 95240J (17 July 2015); https://doi.org/10.1117/12.2186285

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