Method of hand-eye calibration based on RANSAC for portable laser scanning measuring arm

doi:10.3778/j.issn.1002-8331.1702-0181

Computer Engineering and Applications ›› 2017, Vol. 53 ›› Issue (23): 256-260.DOI: 10.3778/j.issn.1002-8331.1702-0181

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Method of hand-eye calibration based on RANSAC for portable laser scanning measuring arm

WU Han1, LI Wei2, DONG Mingli1

1.Beijing Key Laboratory for Optoelectronic Measurement Technology, Beijing Information Science and Technology University, Beijing 100192, China
2.Information Photonics and Photo-communication Research Institute, Beijing University of Posts and Telecommunications, Beijing 100876, China

Online:2017-12-01 Published:2017-12-14

基于RANSAC的便携式激光扫描测量臂手眼标定方法

吴晗1，李巍2，董明利1

1.北京信息科技大学光电测试技术北京市重点实验室，北京 100192
2.北京邮电大学信息光子学与光通信研究院，北京 100876

Abstract

Abstract: The connection relation between laser scanning measuring arm and laser scanning probe is the most critical item among the portable laser scanning measuring arm system. The paper proposes a method based on RANSAC that builds a data selection mechanism to weaken the effections of the angle consisted by two moving steps of rotation axis, which represent the laser scanning measuring arm’s moving. The results of the Monte Carlo simulation analysis and real data experiments indicate that accuracy of the rotation axis and the translation vector are improved by 2.42%, 4.14% respectively for the quaternion which meets the accuracy requirement of the portable laser scanning measuring arm system appropriately.

Key words: hand-eye calibration, Random Sample Consensus（RANSAC）, adapting threshold, portable laser scanning measuring arm

摘要： 便携式测量臂和激光扫描测头手眼关系的确定是便携式激光扫描测量臂系统中的关键问题。针对测量臂末端相对运动旋转轴之间的夹角和测量臂与扫描测头相对运动的旋转角差值这两个影响手眼标定精度的因素，设定激光扫描测量臂标定数据筛选原则，提出一种基于随机采样一致性的自适应阈值手眼标定算法。蒙特卡洛仿真实验和激光扫描测量臂实测实验结果表明，提出的算法对四元数方法求解的相对旋转轴和平移向量误差标准差精度分别提高了2.42%，4.14%，可以满足便携式激光扫描测量臂系统的测量精度要求。

关键词: 手眼标定, 随机采样一致性, 自适应阈值, 便携式激光扫描测量臂

WU Han1, LI Wei2, DONG Mingli1. Method of hand-eye calibration based on RANSAC for portable laser scanning measuring arm[J]. Computer Engineering and Applications, 2017, 53(23): 256-260.

吴晗1，李巍2，董明利1. 基于RANSAC的便携式激光扫描测量臂手眼标定方法[J]. 计算机工程与应用, 2017, 53(23): 256-260.

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Method of hand-eye calibration based on RANSAC for portable laser scanning measuring arm

基于RANSAC的便携式激光扫描测量臂手眼标定方法

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