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

Wong Eugene; Heist Stefan; Braeuer-Burchardt Christian; Babovsky Holger; Kowarschik Richard

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

机译：校准用于使用单个摄像机的高速三维形状测量的阵列投影仪

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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

机译：假设投影仪是逆针孔的，研究了单摄像头，边缘投影3D测量系统中数字光处理投影仪的几何校准。相反，投影非周期性边缘的高速多吸收阵列投影仪（MAAP）不依赖于数字镜装置，不能是针孔模型。使用MAAP投影，需要立体声相机设置。本文通过直接测量其照明场来校准MAAP的较少模型方法，并且即使存在表面不连续性，也可以通过单个相机重新启用3D测量。示出了原理和初步测量性能的实验证明。（c）2018年光学学会

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《Applied optics》 |2018年第26期|共9页
作者
Wong Eugene; Heist Stefan; Braeuer-Burchardt Christian; Babovsky Holger; Kowarschik Richard;
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Friedrich Schiller Univ Jena Inst Appl Opt Helmholtzweg 4 D-07743 Jena Germany;

Abbe Ctr Photon Albert Einstein Str 6 D-07745 Jena Germany;

Fraunhofer IOF Albert Einstein Str 7 D-07745 Jena Germany;

Friedrich Schiller Univ Jena Inst Appl Opt Helmholtzweg 4 D-07743 Jena Germany;

Friedrich Schiller Univ Jena Inst Appl Opt Helmholtzweg 4 D-07743 Jena Germany;

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

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