【作者】 毕德学； 许增朴； 于德敏；

【Author】 BI DEXUE XUE ZENGPU YU DEMIN(College of Mechanical Engineering,Tianjin University of Science and Technology,,Tianjin,300222)

【机构】 天津科技大学机械工程学院；

【摘要】 与基于激光头与摄像机固定的结构光三维视觉系统的标定方法不同,本文提出了一种适用于激光头位置在测量过程中可随机改变的开放式线结构光三维视觉系统现场动态自标定的新方法。该方法只需一凸型平台。观察一个与线结构光相交的凸型载物平台图像,就可实现激光平面自标定。该方法方便,快捷,简单,标定处理过程完全自动化,标定精度高,当平台上放有测量物体,可以实现标定和测量过程的同时进行,因此为开放式的变方位变角度结构光测量提供了基础的原理和方法。实验结果证明了该方法的方便和有效性。更多还原

【Abstract】 Compared with fixed position between laser light source and camera for 3D measurement system,this paper proposes a novel approach for dynamic self calibration of laser plane position,during laser source moving and scanning the measure surface.This calibration method only needs a manufactured convex platform.Observing the image of laser light intersecting with this platform,the laser plane can then be calibrated.It is fast,convenient,simple,high precision, and the procedure can be fully automatic.When placing measuring object on the platform,dynamic calibration and measuring can be implemented in a single frame image.So it can provide basis and ways for further open structured light measuring system with varying placement angle.Experimental results verifies the effectiveness of this method.更多还原