Intensity-optimized dithering technique for three-dimensional shape measurement with projector defocusing

被引：51
作者：
Dai, Junfei [1 ]
Li, Beiwen [2 ]
Zhang, Song [2 ]
机构：
[1] Zhejiang Univ, Dept Math, Hangzhou 310027, Zhejiang, Peoples R China
[2] Iowa State Univ, Dept Mech Engn, Ames, IA 50011 USA
来源：
OPTICS AND LASERS IN ENGINEERING | 2014年 / 53卷
基金：
美国国家科学基金会;
关键词：
Fringe analysis; 3D shape measurement; Dithering; Optimization; Binary defocusing; PULSE-WIDTH MODULATION; BINARY;
D O I：
10.1016/j.optlaseng.2013.08.015
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Our previously proposed phase-based optimization method [1] has proven successful in improving the measurement quality when a dithering technique is used. This paper presents an intensity-based optimization method for 3D shape measurement with binary dithering techniques. Both simulations and experiments find that the phase-based optimization method can generate high-quality phase under a given condition, but it is sensitive to the amount of defocusing. In contrast, the proposed intensity-based optimization method can consistently generate high-quality phase with various amounts of defocusing. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：79 / 85
页数：7
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