Phase error analysis and compensation for nonsinusoidal waveforms in phase-shifting digital fringe projection profilometry

被引：340
|
作者：
Pan, Bing [1 ]
Kemao, Qian [2 ]
Huang, Lei [1 ]
Asundil, Anand [1 ]
机构：
[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore
[2] Nanyang Technol Univ, Sch Comp Engn, Singapore 639798, Singapore
来源：
OPTICS LETTERS | 2009年 / 34卷 / 04期
关键词：
D O I：
10.1364/OL.34.000416
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The nonlinear intensity response of a digital fringe projection profilometry (FPP) system causes the captured fringe patterns to be nonsinusoidal waveforms and leads to an additional phase measurement error for commonly used three- and four-step phase-shifting algorithms. We perform theoretical analysis of the phase error owing to the nonsinusoidal waveforms. Based on the derived theoretical model, a novel and simple iterative phase compensation algorithm is proposed to compensate the nonsinusoidal phase error. Experiments show that the proposed algorithm can be used for effective phase error compensation in practical phase-shifting FPP. (c) 2009 Optical Society of America
引用
收藏
页码：416 / 418
页数：3
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