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一种无需滤波的复合光栅投影的在线三维测量方法

An On-Line Three-Dimensional Measurement Method of Composite Grating Projection Without Filtering

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摘要

针对流水线上在线运动的刚性物体, 投影复合光栅可以解决像素匹配和相位展开对条纹频率不同需求的矛盾, 但在相位计算时, 需对复合光栅进行滤波, 该过程会降低重构精度。基于Stoilov算法, 提出一种无需滤波的复合光栅投影的在线三维测量方法, 设计复合条纹使低频条纹相移方向与被测物体的运动方向平行, 像素匹配后被测物体的运动被转化为低频条纹的相移; 高频条纹相移方向与被测物体运动方向垂直, 像素匹配后各帧变形条纹图中高频条纹的光强分布完全一致, 可直接进行相位计算, 避开了因滤波造成的精度损失。同时在复合光栅中高频条纹的强度远低于低频条纹, 故可将其看作微弱的背景光, 保证了在线三维测量的精度。通过仿真与实验验证了该方法的有效性。

Abstract

For rigid objects moving on-line on the pipeline, the projection composite grating can solve the contradiction between different frequency requirements for pixel matching and phase unwrapping. However, when the phase is calculated, it is necessary to filter the composite grating, which will reduce the reconstruction accuracy. Based on Stoilov algorithm, an on-line three-dimensional(3D) measurement method of composite grating projection without filtering is proposed. By the design of the composite fringe, the phase shift direction of the low-frequency fringe is parallel to the moving direction of the measured object, and the motion of the measured object after pixel matching is converted into the phase shift of the low-frequency fringe. The phase shift direction of the high-frequency fringe is perpendicular to the moving direction of the measured object, and the light intensity distribution of the high-frequency fringe in each frame deformed fringe pattern after pixel matching is exactly the same. Therefore, the phase calculation can be performed directly, and the loss of accuracy is avoided due to filtering. Meanwhile, the intensity of the high-frequency fringe in the composite grating is much lower than that of the low-frequency component, so the high-frequency fringe can be regarded as a weak background light. The accuracy of on-line 3D measurement is guaranteed. Simulations and experiments prove the proposed method’s validity.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:TN247

DOI:10.3788/aos201838.1112003

所属栏目:仪器,测量与计量

基金项目:国家863计划(2007AA01Z333)、国家重大专项(2009ZX02204-008)、国家自然科学基金青年基金(61601318)、山西省应用基础研究项目青年科技研究基金(201601D021078)

收稿日期:2018-04-09

修改稿日期:2018-06-11

网络出版日期:2018-06-19

作者单位    点击查看

彭旷:湖北大学物理与电子科学学院, 铁电压电材料与器件湖北省重点实验室, 湖北 武汉 430062
曹益平:四川大学光电科学技术系, 四川 成都 610064
武迎春:太原科技大学电子信息工程学院, 山西 太原 030024

联系人作者:曹益平(ypcao@scu.edu.cn); 彭旷(pengkuang91@163.com);

【1】Chen F, Brown G M, Song M. Overview of three-dimensional shape measurement using optical methods[J]. Optical Engineering, 2000, 39(1): 10-22.

【2】Srinivasan V, Liu H C, Halioua M. Automated phase-measuring profilometry of 3-D diffuse objects[J]. Applied Optics, 1984, 23(18): 3105-3108.

【3】Xu X F, Cao Y P. An improved Stoilov algorithm based on statistical approach[J]. Acta Optica Sinica, 2009, 29(3): 733-737.
许幸芬, 曹益平. 基于统计逼近的Stoilov改进算法[J]. 光学学报, 2009, 29(3): 733-737.

【4】Chen F, Su X N, Xiang L Q. Analysis and identification of phase error in phase measuring profilometry[J]. Optics Express, 2010, 18(11): 11300-11307.

【5】Ri S, Fujigaki M, Morimoto Y. Intensity range extension method for three-dimensional shape measurement in phase-measuring profilometry using a digital micromirror device camera[J]. Applied Optics, 2008, 47(29): 5400-5407.

【6】Rusinkiewicz S, Hall-Holt O, Levoy M. Real-time 3D model acquisition[J]. ACM Transactions on Graphics, 2002, 21(3): 438-446.

【7】Ekstrand L, Zhang S. Three-dimensional profilometry with nearly focused binary phase-shifting algorithms[J]. Optics Letters, 2011, 36(23): 4518-4520.

【8】Hyun J S, Chiu G T, Zhang S. High-speed and high-accuracy 3D surface measurement using a mechanical projector[J]. Optics Express, 2018, 26(2): 1474-1487.

【9】Xu X F, Cao Y P, Peng K. Pixel matching method in on-line three-dimensional measurement based on phase prediction[J]. Acta Optica Sinica, 2016, 36(6): 0612005.
许幸芬, 曹益平, 彭旷. 基于相位预测的在线三维测量像素匹配方法[J]. 光学学报, 2016, 36(6): 0612005.

【10】Li K, Cao Y P, Chen Y Q, et al. A new method for online three dimensional inspection without marked[J]. Optics & Optoelectronic Technology, 2009, 7(2): 62-65.
李坤, 曹益平, 陈永权, 等. 一种无需标记的在线三维测量方法[J]. 光学与光电技术, 2009, 7(2): 62-65.

【11】Zhong L J, Cao Y P. An on-line phase measuring profilometry with phase-shifting perpendicular to moving direction of measured object[J]. Acta Optica Sinica, 2009, 29(2): 417-420.
钟立俊, 曹益平. 相移正交物体运动方向的在线相位测量轮廓术[J]. 光学学报, 2009, 29(2): 417-420.

【12】Peng K, Cao Y P, Wu Y C, et al. A new pixel matching method using the modulation of shadow areas in online 3D measurement[J]. Optics and Lasers in Engineering, 2013, 51(9): 1078-1084.

【13】Guan C, Hassebrook L G, Lau D L. Composite structured light pattern for three-dimensional video[J]. Optics Express, 2003, 11(5): 406-417.

【14】He Y H, Cao Y P, Zhai A P. A 3-D measurement method with orthogonal composite light based on fringe contrast and background calibration[J]. Acta Optica Sinica, 2010, 30(11): 3191-3196.
何宇航, 曹益平, 翟爱平. 基于条纹对比度和背景光校准的正交复合光三维测量方法[J]. 光学学报, 2010, 30(11): 3191-3196.

【15】Wu Y C, Cao Y P, Shi S P, et al. On-line three-dimensional inspection based on orthogonal two-frequency grating projection[J]. Chinese Journal of Lasers, 2012, 39(5): 0508003.
武迎春, 曹益平, 史顺平, 等. 基于正交双频光栅投影的在线三维检测[J]. 中国激光, 2012, 39(5): 0508003.

【16】Stoilov G, Dragostinov T. Phase-stepping interferometry: five-frame algorithm with an arbitrary step[J]. Optics and Lasers in Engineering, 1997, 28(1): 61-69.

【17】Yue H M, Su X Y, Li Z R. Improved fast Fourier transform profilometry based on composite grating[J]. Acta Optica Sinica, 2005, 25(6): 767-771.
岳慧敏, 苏显渝, 李泽仁. 基于复合光栅投影的快速傅里叶变换轮廓术[J]. 光学学报, 2005, 25(6): 767-771.

【18】Yue H M, Su X Y. Study on composite phase measuring profilometry[J]. Laser Journal, 2006, 27(1): 22-23.
岳慧敏, 苏显渝. 复合相位测量轮廓术研究[J]. 激光杂志, 2006, 27(1): 22-23.

【19】Lu M T, Su X Y, Cao Y P, et al. A method of both height mapping and camera calibration at the same time in modulation measuring profilometry[J]. Acta Optica Sinica, 2016, 36(6): 0612002.
卢明腾, 苏显渝, 曹益平, 等. 调制度测量轮廓术中高度映射与相机同时标定的方法[J]. 光学学报, 2016, 36(6): 0612002.

【20】Bian X T, Cheng J, Zuo F, et al. A method of 3D shape measurement based on alignment grating projection[J]. Laser & Optoelectronics Progress, 2017, 54(1): 011202.
边心田, 程菊, 左芬, 等. 基于光栅预校正的三维面形测量方法[J]. 激光与光电子学进展, 2017, 54(1): 011202.

引用该论文

Peng Kuang,Cao Yiping,Wu Yingchun. An On-Line Three-Dimensional Measurement Method of Composite Grating Projection Without Filtering[J]. Acta Optica Sinica, 2018, 38(11): 1112003

彭旷,曹益平,武迎春. 一种无需滤波的复合光栅投影的在线三维测量方法[J]. 光学学报, 2018, 38(11): 1112003

被引情况

【1】 武迎春, 曹益平, 吉聪建, 王安红, 赵贤凌. 虚拟结构光三维数据压缩算法的量化误差抑制. 激光与光电子学进展, 2019, 56(15): 151203--1

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