中国激光, 2019, 46 (10): 1004002, 网络出版: 2019-10-25
基于激光测距的激光扫描投影系统标定技术研究 下载: 995次
Research on Calibration Technology of Laser Scanning Projection System Based on Laser Ranging
测量 激光测距 激光扫描投影系统 标定模型 粒子群算法 粒子群导数标定算法 measurement laser ranging laser scanning projection system calibration model particle swarm optimization algorithm particle swarm derivative calibration algorithm
摘要
为解决现有激光扫描投影系统至少需要4个合作目标点才能实现坐标转换关系标定,并且经常因迭代算法不收敛而需要多次、长时间才能完成坐标转换参数解算等问题,提出并研究了融合激光测距的激光扫描投影系统标定技术。研究了加入和未加激光测距模块的激光扫描投影系统数学模型,并运用粒子群优化算法仿真分析其标定精度。针对测距误差对系统标定精度有较大影响的问题,提出粒子群导数标定算法改进标定算法,最终实现了仅需3个合作目标点的快速标定,且标定精度可提升至10 -7 mm。
Abstract
In order to solve the problem that the existing laser scanning projection system needs at least 4 cooperation target points to realize the coordinate transformation relationship calibration, and it often takes multiple times and much time to complete the coordinate transformation parameter solution for the non-convergent iterative algorithm, we proposes and studies the laser scanning projection system calibration technique that combines laser ranging. The mathematical models of laser scanning projection system with and without laser ranging module are studied. The particle swarm optimization algorithm is used to simulate the calibration accuracy. Aiming at the problem that the ranging error has a great influence on the calibration accuracy of the system, a particle swarm derivative calibration algorithm is proposed to improve the calibration algorithm. Finally, a rapid calibration of only three cooperative target points is realized and the accuracy is increased to 10 -7 mm.
侯茂盛, 刘继强, 刘大礼, 陈雨情, 张旭, 范成博. 基于激光测距的激光扫描投影系统标定技术研究[J]. 中国激光, 2019, 46(10): 1004002. Maosheng Hou, Jiqiang Liu, Dali Liu, Yuqing Chen, Xu Zhang, Chengbo Fan. Research on Calibration Technology of Laser Scanning Projection System Based on Laser Ranging[J]. Chinese Journal of Lasers, 2019, 46(10): 1004002.