激光与光电子学进展, 2018, 55 (2): 020001, 网络出版: 2018-09-10
线结构光标定方法综述 下载: 7828次
Summary on Calibration Method of Line-Structured Light
机器视觉 三维传感 线结构光测量 标定靶物 光平面标定 标定精度评定方法 machine vision three-dimensional sensing line-structured light measurement calibration target calibration of light plane evaluation method of calibration accuracy
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.
张曦, 张健. 线结构光标定方法综述[J]. 激光与光电子学进展, 2018, 55(2): 020001. Xi Zhang, Jian Zhang. Summary on Calibration Method of Line-Structured Light[J]. Laser & Optoelectronics Progress, 2018, 55(2): 020001.