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首页> 外文期刊>Optics Letters >Extending epipolar geometry for real-time structured light illumination II: lossless accuracy
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Extending epipolar geometry for real-time structured light illumination II: lossless accuracy

机译：用于实时结构光照明II的延伸末端几何形状II：无损精度

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摘要

Structured light illumination is a process of 3D scanning using a digital projector to project a series of striped patterns that sweep a target surface, and based on the warping of the stripes viewed by a camera, the shape of the target can be reconstructed. In the case of scanning stripes separately in both horizontal and vertical directions, algorithms have been proposed that achieve real-time reconstruction through look-up tables; however, these look-up tables implement the inversion of one traditional lens projection matrix. In this Letter, we propose look-up tables constructed using (1) both views of a camera and a projector and (2) basic arithmetic operations rather than complex matrix operations to significantly reduce the total number of computations used to reconstruct a point cloud. Experiments show that, with the same accuracy, the proposed tables improve the computation speed by a factor of 6.66x, from 31.00 to 206.61 fps. (C) 2021 Optical Society of America
机译：结构光照明是一种3D扫描过程，使用数字投影仪投射一系列条纹图案，扫描目标表面，并基于摄像机观察到的条纹扭曲，重建目标形状。在水平和垂直方向分别扫描条纹的情况下，提出了通过查找表实现实时重建的算法；然而，这些查找表实现了一个传统透镜投影矩阵的反转。在这封信中，我们建议使用（1）相机和投影仪的视图和（2）基本算术运算（而不是复杂的矩阵运算）构造查找表，以显著减少重建点云所需的计算总量。实验表明，在相同的精度下，所提出的表格将计算速度提高了6.66倍，从31.00 fps提高到206.61 fps。（2021）美国光学学会

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  • 来源
    《Optics Letters》 |2021年第4期|共4页
  • 作者

    Liu Kai; Ran Xuening; Gong Jun; Song Jianwen; Lau Daniel L.; Zhu Ce; Xu Bin;

  • 作者单位

    Sichuan Univ Coll Elect Engn Chengdu 610065 Sichuan Peoples R China;

    Sichuan Univ Coll Elect Engn Chengdu 610065 Sichuan Peoples R China;

    Chengdu Prod Qual Supervis &

    Inspect Inst Chengdu 610199 Sichuan Peoples R China;

    Sichuan Univ Coll Elect Engn Chengdu 610065 Sichuan Peoples R China;

    Univ Kentucky Dept Elect &

    Comp Engn Lexington KY 40506 USA;

    Univ Elect Sci &

    Technol China Sch Informat &

    Commun Engn Chengdu 611731 Sichuan Peoples R China;

    Sichuan Univ Sch Mech Engn Chengdu 610065 Sichuan Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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