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Optical Engineering

Three-dimensional shape measurement with dual reference phase maps
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Paper 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.

Paper Details

Date Published: 3 January 2014
PDF: 10 pages
Opt. Eng. 53(1) 014102 doi: 10.1117/1.OE.53.1.014102
Published in: Optical Engineering Volume 53, Issue 1
Show Author Affiliations
Junfei Dai, Zhejiang Univ. (China)
Chen Gong, Iowa State Univ. (United States)
Song Zhang, Iowa State Univ. (United States)

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