结构光三维测量系统精度分析及验证

文中建立了结构光测量系统数学模型, 并分析了结构光测量精度的影响因素。同时在结构光光条图像处理中改进了原有方法, 使用了一种新的快速光条中心提取算法。文章通过设计标准板进行了精度检测实验, 分析了系统对标准宽度和深度的测量精度。实验结果表明, 该测量方法对深度的检测精度优于 0.2 mm, 对宽度的检测精度优于 0.3 mm, 可以满足亚毫米级微小变形检测的精度要求, 是一种有效的微小变形检测和三维测量方法。

Abstract

The mathematical model of structure light measurement system is established, and the factors influencing the measurement accuracy are analyzed. At the same time, a fast new light strip center edge extraction algorithm is used in the image processing method, which improves the extraction accuracy distinctly. The accuracy testing experiments are designed and analyzed by standard plate. The experimental results show that the measurement accuracy of this method is better than that of 0.2mm and 0.3mm, and reached in the detection depth and width on the regular groove, which can fully meet the requirements of sub-millimeter small deformation detection accuracy. It is an effective detection method.

参考文献

[1] 叶声华, 邾继贵, 王仲, 等.视觉检测技术及应用 [J].中国工程科学, 1999, 1(1)：262-263. YE Shenghua, ZHU Jigui, WANG Zhong, et al. Vision Inspection Technology and its Application [J]. Engineering Science, 1999, 1(1)：262-263.

[2] 邾继贵, 叶声华. 工业现场近景数字摄影视觉精密测量 [J].地理空间信息, 2004, 2(6)：11-14. ZHU Jigui, YE Shenghua. Industrial Field Visial Inspection Based On Digital Close Range Photogrammetry [J]. Geospatial Information, 2004, 2(6)：11-14.

[3] 黄桂平. 数字近景工业摄影测量关键技术研究及应用 [D].天津：天津大学, 2005. HUANG Guiping. Study on the Key Technology of Digital Close Range Industrial Photogrammetry and Applications [D]. Tianjin：TianJin University, 2005.

[4] 李春艳, 王立, 卢欣, 等. 一种双目立体视觉相机标定方法 [J].空间控制技术与应用, 2010, 36(3)：51-54. LI Chunyan, WANG Li, LU Xin, et al. A Binocular Stereo Camera Calibration Method [J]. Aerospace Control and Application, 2010, 36(3)：51-54.

[5] 张丽华, 李春艳, 曹冬雨, 等.月球车双目视觉避障像机标定 [J].光电工程, 2012, 39(3)：72-77. ZHANG Lihua, LI Chunyan, CAO Dongyu, et al. Stereo hazard avoidance cameras calibration of lunar rover [J]. Opto-Electronic Engineering, 2012, 39(3)：72-77.

[6] DEWAR R. Self-Generated Targets For Spatial Calibration Of Structured Light Optical Sectioning Sensors With Respect To An External Coordinate System [C]// Conf.Preceeding Robots and Vision, Detroit, 1988：5-13.

[7] 魏振忠, 曹黎俊, 张广军. 结构光光条中心亚像素快速提取方法 [J].光电子.激光, 2009, 20(12)：1631-1634. WEI Zhengzhou, CAO Lijun, ZHANG Guangjun. Fast And Sub-Pixel Extraction Method For Structured Light Stirpe Center [J]. Journal of Optodetronics Laser, 2009, 20(12)：1631-1634.

[8] 胡坤, 周富强. 一种条纹中心线快速亚像素提取方法 [J].光电技术应用, 2005, 20(6)：60-63. HU Kun, ZHOU Fuqiang. fast Extraction Method For Sub-Pixel Center Of Structured Light Stripe [J]. Chinese Journal of Scientific Instrumeng, 2005, 20(6)：60-63.

[9] 贾倩倩, 王伯雄, 罗秀芝. 光切法形貌测量中光条中心的亚像素提取 [J].光学精密工程, 2010, 18(2)：390-396. JIA Qianqian, WANG Boxiong, LUO Xiuzhi. Extraction Of Central Positions Of Light Stripe In Sub-Pixel In 3D Surface Measurement Based On Light Sectioning Method [J]. Optics and Precision Engineering, 2010, 18(2)：390-396.

范生宏, 刘昌儒, 亓晓彤, 曹冬雨, 张丽华, 吴亚军, 王孟. 结构光三维测量系统精度分析及验证[J]. 光电工程, 2014, 41(5): 52. FAN Shenghong, LIU Changru, QI Xiaotong, CAO Dongyu, ZHANG Lihua, WU Yajun, WANG Meng. Accuracy Analysis and Verification of Structured Light 3D Measurement System[J]. Opto-Electronic Engineering, 2014, 41(5): 52.

结构光三维测量系统精度分析及验证

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