基于单线结构光的三维测量方法研究
Research on Three-dimensional Measurement Method Based on Single-line Structured Light
冯宁 1佟星1
作者信息
- 1. 华北水利水电大学,河南 郑州 450046
- 折叠
摘要
线结构光测量系统具备快速测量和高精度的特点.针对线结构光三维测量系统装置体积较大、扫描范围有限的问题,文章介绍了一种利用单线结构光旋转扫描的三维测量系统,并进行了相关实验验证.首先,基于透视投影线面相交原理,建立了线结构光三维测量模型,完成相机标定以及光平面的标定实验;设计了一种旋转式线结构光的投影模式,并且通过旋转角度对旋转后的光平面进行计算,完成对目标物体的面型测量.实验结果表明,该系统有较高的测量精度,并且可以提高视觉测量系统的便携性.
Abstract
Line structured light measurement system has the characteristics of fast measurement and high accuracy.Aiming at the problems of large size and limited scanning range of line structured light 3D measurement system,this paper introduces a 3D measurement system using single-line structured light for rotational scanning,and carries out relevant experiments to verify it.First of all,based on the principle of intersection of perspective projection lines and surfaces,a three-dimensional measurement model of line structured light is established to complete the camera calibration as well as the calibration experiments of the optical plane.A projection mode of rotating line structured light is designed,and the calculation of the rotated optical plane is carried out through the rotation angle,so as to complete the measurement of the face shape of the target object.The experimental results show that the system has high measurement accuracy and can improve the portability of the visual measurement system.
关键词
三维测量/标定/线结构光/中心线提取Key words
3D measurement/calibration/line structured light/centerline extraction引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据