Absolute three-dimensional shape measurement combining digital image correlation and phase-shifting methods

Yi-Hong Liao; Song Zhang

doi:10.1117/12.2622620

31 May 2022 Absolute three-dimensional shape measurement combining digital image correlation and phase-shifting methods

Yi-Hong Liao, Song Zhang

Proceedings Volume 12098, Dimensional Optical Metrology and Inspection for Practical Applications XI; 1209803 (2022) https://doi.org/10.1117/12.2622620
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States

Abstract

Phase-shifting methods have been extensively employed in high-resolution and high-speed absolute three-dimensional (3D) measurements. In the process of 3D reconstruction, one of the important tasks is to recover the absolute phase pixel by pixel. In this paper, we propose an absolute 3D shape measurement method that combines the digital image correlation (DIC) algorithm with the phase-shifting method on a one-camera and one-projector structure light system. Comparing to the conventional multi-wavelength unwrapping method, the proposed method only needs one random binary pattern for phase unwrapping. Experimental results demonstrated the proposed method can successfully measure complex scenes with high quality.

Conference Presentation

Citation Download Citation

Yi-Hong Liao and Song Zhang "Absolute three-dimensional shape measurement combining digital image correlation and phase-shifting methods", Proc. SPIE 12098, Dimensional Optical Metrology and Inspection for Practical Applications XI, 1209803 (31 May 2022); https://doi.org/10.1117/12.2622620

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