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

Haidong Bian; Kai Liu

doi:10.1117/1.OE.55.9.093110

30 September 2016 Robustly decoding multiple-line-structured light in temporal Fourier domain for fast and accurate three-dimensional reconstruction

Haidong Bian, Kai Liu

Author Affiliations +

Optical Engineering, Vol. 55, Issue 9, 093110 (September 2016). https://doi.org/10.1117/1.OE.55.9.093110

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

Published: 30 September 2016

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