摘要
介绍了基于双目立体视觉的便携式激光扫描三维形貌测量系统,该系统的测头部分安装了5个激光器,将 扫描速度提高了5倍,而且采用两个摄像机同时摄取扫描激光光条图像,避免了对投射激光的标定过程。根据立 体视觉原理,经图像匹配,可计算得到光条上所有点的空间位置和深度,即被测空间曲面的三维信息。阐述了非 接触三维形貌测量的原理和方法,试验结果证明了系统的可行性和适用性。
A portable 3D laser scanning measure system based on stereo vision is introduced. 5 lasers were fixed in de visual sensor, so the scanning speed could be increased by 5 times. By means of collecting the images with laser strips by two CCD cameras and matching the image, avoided the calibration of the laser. The position and depth of points on the scanning laser strips can be obtained by the disparity. With explaining the principle and method used in the measurement of 3D contour, the result of experiment shows the preciseness of the measurement system.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2005年第2期166-169,共4页
Journal of Mechanical Engineering
基金
国家自然科学基金资助项目(50305024)
关键词
非接触测量
立体视觉
外极线约束
图像匹配
Non-contact measurement Stereo vision Epipolar constraint Image registration
