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高效线结构光视觉测量系统标定方法

Efficient Calibration Method for Line-Structured Light Vision Measurement System

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摘要

线结构光视觉测量系统参数标定是三维测量应用的首要步骤,其中光平面特征点的稳定获取最为关键。针对平面标靶的特点和基于交比不变定理获取特征点方法的不足,提出一种高效的基于相机投影矩阵和单应矩阵的标定法。首先,通过平面标靶特征点与其世界坐标对应关系计算出单应矩阵,然后根据相机投影矩阵和单应矩阵一次计算出光平面和标靶的交线上所有特征点。实验结果表明,本文方法可以利用所有的特征点,稳定性好,易实现,能达到需要的精度。

Abstract

Parameter calibration of a line-structured light vision measurement system is the first step required for three-dimensional measurement applications, wherein the most important task is stable acquisition of the feature points on the optical plane. An efficient calibration method is proposed based on a camera projection matrix and a homography matrix considering the characteristics of planar targets as well as the deficiency of the method of obtaining feature points based on the cross-ratio invariant principal. First, the homography matrix is calculated using the corresponding relationship between the feature points on the plane target and their world coordinates. Subsequently, all feature points lying on the intersection of the optical plane and target can be obtained simultaneously based on the camera projection and homography matrices. The experimental results indicate good stability and simple implementation for the new method, as well as high accuracy due to the utilization of all feature points.

Newport宣传-MKS新实验室计划
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DOI:10.3788/LOP56.221505

所属栏目:机器视觉

基金项目:国家自然科学青年基金、山东省青年博士基金;

收稿日期:2019-04-19

修改稿日期:2019-05-21

网络出版日期:2019-11-01

作者单位    点击查看

李爱娟:烟台大学计算机与控制工程学院, 山东 烟台 264005
辛睿:烟台大学计算机与控制工程学院, 山东 烟台 264005
武栓虎:烟台大学计算机与控制工程学院, 山东 烟台 264005

联系人作者:武栓虎(wushuanhu@ytu.edu.cn)

备注:国家自然科学青年基金、山东省青年博士基金;

【1】Wang Y and Su X Y. A modified three-dimensional object recognition based on structure light projection. Journal of Optoelectronics·Laser. 19(11), 1561-1565(2008).
王莹, 苏显渝. 改进的基于结构光投影的三维物体识别. 光电子·激光. 19(11), 1561-1565(2008).

【2】Sun C K, Wang Z X, Zhang X D et al. 3D measurement method for the tire tip in the laser vision alignment system for automobile wheels. Journal of Optoelectronics·Laser. 13(9), 959-961(2002).
孙长库, 王志雄, 张效栋 等. 激光视觉车轮定位系统中胎冠3D坐标的求取. 光电子激光. 13(9), 959-961(2002).

【3】Zhan K F, Chen W J, Li W S et al. Line laser 3D scene reconstruction system and error analysis. Chinese Journal of Lasers. 45(12), (2018).
詹坤烽, 陈文建, 李武森 等. 线激光三维场景重建系统及误差分析. 中国激光. 45(12), (2018).

【4】Guo J C, Zhu Z M, Yu Y F et al. Research and application of visual sensing technology based on laser structured light in welding industry. Chinese Journal of Lasers. 44(12), (2017).
郭吉昌, 朱志明, 于英飞 等. 焊接领域激光结构光视觉传感技术的研究及应用. 中国激光. 44(12), (2017).

【5】Zhang X and Zhang J. Summary on calibration method of line-structured light. Laser & Optoelectronics Progress. 55(2), (2018).
张曦, 张健. 线结构光标定方法综述. 激光与光电子学进展. 55(2), (2018).

【6】Zhang Z Y. A flexible new technique for camera calibration. IEEE Transactions on Pattern Analysis and Machine Intelligence. 22(11), 1330-1334(2000).

【7】Huynh D Q, Owens R A and Hartmann P E. Calibrating a structured light stripe system: a novel approach. International Journal of Computer Vision. 33(1), 73-86(1999).

【8】Zhang G J and Wei Z Z. A novel calibration approach to structured light 3D vision inspection. Optics & Laser Technology. 34(5), 373-380(2002).

【9】Xu L and Zhang Z J. Calibration in structured light system using coplanar target. Journal of Optoelectronics · Laser. 20(8), 1063-1069(2009).
许丽, 张之江. 基于共面靶标的结构光标定方法. 光电子·激光. 20(8), 1063-1069(2009).

【10】Yang K, Yu H Y and Yang C. Calibration of line structured-light vision measurement system based on free-target. Mechanical & Electrical Engineering Magazine. 33(9), 1066-1070(2016).
杨凯, 余厚云, 杨超. 基于自由靶标的线结构光视觉测量系统标定研究. 机电工程. 33(9), 1066-1070(2016).

【11】Li R and Xiong X M. A calibration method of line structure light plane based on checkerboard. Instrumentation Customer. 24(4), 6-9(2017).
李瑞, 熊显名. 基于棋盘格的线结构光平面标定方法. 仪器仪表用户. 24(4), 6-9(2017).

引用该论文

Li Aijuan,Xin Rui,Wu Shuanhu. Efficient Calibration Method for Line-Structured Light Vision Measurement System[J]. Laser & Optoelectronics Progress, 2019, 56(22): 221505

李爱娟,辛睿,武栓虎. 高效线结构光视觉测量系统标定方法[J]. 激光与光电子学进展, 2019, 56(22): 221505

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