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Instrumentation, Techniques, and Measurement

Three-dimensional shape measurement with dual reference phase maps

[+] Author Affiliations
Junfei Dai

Zhejiang University, Department of Mathematics, Zhejiang 310027, China

Chen Gong

Iowa State University, Department of Mechanical Engineering, Ames, Iowa 50011

Song Zhang

Iowa State University, Department of Mechanical Engineering, Ames, Iowa 50011

Opt. Eng. 53(1), 014102 (Jan 03, 2014). doi:10.1117/1.OE.53.1.014102
History: Received September 5, 2013; Revised November 21, 2013; Accepted December 6, 2013
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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.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Junfei Dai ; Chen Gong and Song Zhang
"Three-dimensional shape measurement with dual reference phase maps", Opt. Eng. 53(1), 014102 (Jan 03, 2014). ; http://dx.doi.org/10.1117/1.OE.53.1.014102


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