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线结构光标定方法综述

Summary on Calibration Method of Line-Structured Light

张曦   张健  
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摘要

标定方法一直是线结构光三维测量系统研究的关键要素。重点讨论了线结构光传感器标定方法中的三个问题: 标定靶物、光平面标定方法以及标定精度评定方法的比较。首先, 总结了常用的标定靶物类型及其标定特点, 为标定靶物的选型提供参考;然后, 按照标定靶物和传感器标定时的相对运动关系, 将当前主要的光平面标定方法划分为三类, 分别是靶物与传感器位置关系固定不动的标定方法、靶物与传感器之间存在可控运动的标定方法以及靶物与传感器之间可自由移动的标定方法;其次, 系统归纳了现有标定精度的评定方法, 分析了各种方法的原理以及特点;最后, 总结了线结构光标定方法的发展现状, 指出线结构光自扫描测量系统和水下标定是线结构光传感器的发展趋势。

Abstract

The calibration method is an indispensable key element in the study of three-dimensional measurement systems of line-structured light. We focus on three issues in the calibration method of line-structured light sensors,the calibration target, calibration method of light plane, and evaluation of calibration accuracy. At first, the commonly used calibration target type and its calibration characteristics are summarized, which provide a reference for the selection of calibration target. Then, the current main calibration methods of light plane are divided into three kinds according to the relative motion relation between the calibration target and the sensor, namely the calibration method with fixed position between calibration target and the sensor, the calibration method with controllable relative motion between the calibration target and the sensor, and the calibration method with freely motion between calibration target and the sensor. Subsequently, we systematically summarize the existing evaluation methods of the calibration accuracy, and analyze the principles and characteristics of them. Finally, we summarize the development status of the line-structured light calibration method, and point out that the line-structured light self-scanning measurement system and the underwater calibration are the development trend of line-structured light sensor.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:TP391

DOI:10.3788/lop55.020001

所属栏目:综述

基金项目:国家自然科学基金 (41376169)、国家重点研发计划重点专项课题 (2016YFC0302402)

收稿日期:2017-07-07

修改稿日期:2017-08-08

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作者单位    点击查看

张曦:上海大学机电工程与自动化学院, 上海 200072
张健:上海大学机电工程与自动化学院, 上海 200072

联系人作者:张曦(xizhang@shu.edu.cn)

备注:张曦(1977—), 男, 博士, 副教授, 主要从事视觉检测技术方面的研究。E-mail: xizhang@shu.edu.cn

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