Calibration of an array projector used for high-speed three-dimensional shape measurements using a single camera

被引：9
|
作者：
Wong, Eugene [1 ,2 ]
Heist, Stefan [2 ,3 ]
Braeuer-Burchardt, Christian [3 ]
Babovsky, Holger [1 ,2 ]
Kowarschik, Richard [1 ,2 ]
机构：
[1] Friedrich Schiller Univ Jena, Inst Appl Opt, Helmholtzweg 4, D-07743 Jena, Germany
[2] Abbe Ctr Photon, Albert Einstein Str 6, D-07745 Jena, Germany
[3] Fraunhofer IOF, Albert Einstein Str 7, D-07745 Jena, Germany
来源：
APPLIED OPTICS | 2018年 / 57卷 / 26期
关键词：
FOURIER-TRANSFORM PROFILOMETRY; STRUCTURED LIGHT PROJECTION; ACCURATE CALIBRATION; SYSTEM; OBJECTS;
D O I：
10.1364/AO.57.007570
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Geometric calibration of digital light processing projectors in single-camera, fringe-projecting 3D measurement systems have been studied assuming the projector is inverse pinhole modeled. Conversely, a high-speed multiaperture array projector (MAAP) projecting aperiodic fringes is not dependent on a digital mirror device and cannot be pinhole modeled. With MAAP projection, a stereo camera setup is required. This paper presents a model-less method to calibrate a MAAP by direct measurement of its illumination field and re-enables 3D measurements with a single camera even with surface discontinuities present. Experimental proof of principle and preliminary measurement performance are shown. (C) 2018 Optical Society of America
引用
收藏
页码：7570 / 7578
页数：9
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