Three-dimensional shape measurement with dual reference phase maps

Junfei Dai; Chen Gong; Song Zhang

doi:10.1117/1.OE.53.1.014102

3 January 2014 Three-dimensional shape measurement with dual reference phase maps

Junfei Dai, Chen Gong, Song Zhang

Author Affiliations +

Funded by: National Science Foundation (NSF), NSF, Foundation of Zhejiang Educational Committee of China (FZECC)

Optical Engineering, Vol. 53, Issue 1, 014102 (January 2014). https://doi.org/10.1117/1.OE.53.1.014102

Abstract

Single reference-phase-based methods have been extensively utilized in digital fringe projection systems, yet they might not provide the maximum sensitivity given a hardware system configuration. This paper presents an innovative method to improve the measurement quality by utilizing two orthogonal phase maps. Specifically, two reference phase maps generated from horizontal and vertical (i.e., orthogonal) fringe patterns projected are combined into a vector reference phase map through a linear combination for depth extraction. The experiments have been conducted to verify the superiority of the proposed method over a conventional single reference-phase-based approach.

Citation Download Citation

Junfei Dai, Chen Gong, and Song Zhang "Three-dimensional shape measurement with dual reference phase maps," Optical Engineering 53(1), 014102 (3 January 2014). https://doi.org/10.1117/1.OE.53.1.014102

Published: 3 January 2014

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