Flexible structured-light-based three-dimensional profile reconstruction method considering lens projection-imaging distortion

被引：41

作者：

Ma, Suodong ^{[1
,2
]}

Zhu, Rihong ^{[1
]}

Quan, Chenggen ^{[2
]}

Chen, Lei ^{[1
]}

Tay, Cho Jui ^{[2
]}

Li, Bo ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Elect & Optic Engn, Nanjing 210094, Jiangsu, Peoples R China

[2] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore

来源：

APPLIED OPTICS | 2012年 / 51卷 / 13期

关键词：

FRINGE-PROJECTION; SHAPE MEASUREMENT; CALIBRATION METHOD; GAMMA-CORRECTION; ERROR COMPENSATION; PROFILOMETRY; ACCURACY;

D O I：

10.1364/AO.51.002419

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Structured-light profilometry is a powerful tool to reconstruct the three-dimensional (3D) profile of an object. Accurate profile acquisition is often hindered by not only the nonlinear response (i.e., gamma effect) of electronic devices but also the projection-imaging distortion of lens used in the system. In this paper, a flexible 3D profile reconstruction method based on a nonlinear iterative optimization is proposed to correct the errors caused by the lens distortion. It can be easily extended to measurements for which a more complex projection-imaging distortion model is required. Experimental work shows that the root-mean-square (RMS) error is reduced by eight times and highly accurate results with errors of less than 1% can be achieved by the proposed method. (C) 2012 Optical Society of America

引用

页码：2419 / 2428

页数：10

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