Imaging Components, Systems, and Processing

Robustly decoding multiple-line-structured light in temporal Fourier domain for fast and accurate three-dimensional reconstruction

[+] Author Affiliations
Haidong Bian, Kai Liu

Sichuan University, School of Electrical Engineering and Information, No. 24 South Section 1, Yihuan Road, Chengdu, Sichuan Province 610065, China

Opt. Eng. 55(9), 093110 (Sep 30, 2016). doi:10.1117/1.OE.55.9.093110
History: Received April 5, 2016; Accepted September 12, 2016
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Abstract.  Compared with grayscale patterns in structured light illumination, line stripes, as one binary pattern, are attractive for being more conveniently decoded. However, traditional line scanning typically involves a single line shifting across objects to avoid spatial ambiguities possibly introduced by complex surface geometry of objects. We propose a multiple-line strategy for fast and accurate reconstructing of the three-dimensional surfaces of targets. First, we build a mathematical model for multiline scanning, and second, we derive phase computation from the model along time axis and resolve the issue of ambiguity naturally. Errors of the proposed method are theoretically analyzed, and it shows that the proposed method is immune to nonlinearity and is robust to uncertainty. Experimental results demonstrate that the proposed method is of advantages both in accuracy and time cost.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Haidong Bian and Kai Liu
"Robustly decoding multiple-line-structured light in temporal Fourier domain for fast and accurate three-dimensional reconstruction", Opt. Eng. 55(9), 093110 (Sep 30, 2016). ; http://dx.doi.org/10.1117/1.OE.55.9.093110


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