摘要
为解决现有激光扫描投影系统中需要手动标定的问题,提出了融合单目视觉的激光扫描投影系统自标定方法。首先建立了融合单目视觉技术的激光扫描投影系统模型,给出了融合单目视觉的激光扫描投影系统自标定方法;其次建立了单目相机与激光扫描投影系统、被投影物体之间的数学模型;最后运用Matlab软件进行模拟仿真,证明融合单目视觉的激光扫描投影系统自标定方法可以解决上述问题。同时为验证融合单目视觉的激光扫描投影系统自标定方法的精度是否满足激光扫描投影系统的需求,将Matlab软件求解的实验结果与SA软件求解的实验结果进行对比,并分析精度与距离、角度等外部因素的关系。仿真实验结果表明:当距离一定时,单目相机旋转角度为55°时,单目相机距离投影仪和被投影物体的范围为1.5~3 m,且满足投影仪的精度要求。同时通过自主搭建新型激光扫描投影系统,证明了融合单目视觉的激光扫描投影系统自标定方法具有实际可操作性和可行性。
In order to solve the problem of manual calibration in the existing laser scanning projection system,the self-calibration method of laser scanning projection system combined with monocular vision was proposed.Firstly,laser scanning projection system model combined with monocular vision technology is established,and the self-calibration method of laser scanning projection system combined with monocular vision is studied.Secondly,the mathematical model between camera and laser scanning projection system and projected object is founded.Finally,it is proved that the self-calibration method of laser scanning projection system combined with monocular vision can solve the problem by the simulation experiment.At the same time,the accuracy of the self-calibration method is verified to meet the requirement of the laser scanning projection system by comparing the experimental results of Matlab and SA.The relationship between accuracy and external factors such as distance and angle is analyzed.The simulation results show that when the distance is fixed and the rotation angle of the camera is 55°,the range of the camera from the projector and projected object is 1.5~3 m and meet the accuracy requirement of the projector.By independently building a new laser scanning projection system,the studied method has practical operability and feasibility.
作者
侯茂盛
陈雨情
史铮雪
李竺悦
HOU Maosheng;CHEN Yuqing;SHI Zhengxue;LI Zhuyue(Key Laboratory of Optoelectronic Measurement and Optical Information Transmission Technology of Ministry of Education,College of Optoelectronic Engineering,Changchun University of Science and Technology,Changchun 130022,China)
出处
《光子学报》
EI
CAS
CSCD
北大核心
2021年第2期134-141,共8页
Acta Photonica Sinica
基金
国家自然科学基金(No.61805022),吉林省自然科学基金(No.20200201229JC)。
关键词
激光扫描投影
单目视觉
自标定
位姿转换
粒子群优化
Laser scanning projection
Monocular vision
Self-calibration
Pose conversion
Particle swarm optimization
作者简介
第一作者/通讯作者:侯茂盛(1984-),男,讲师,博士,主要研究方向为先进光学仪器与精密测量。Email:houmsh@cust.edu.cn。
