摘要
提出一种基于面结构光的刀具三维测量系统。该系统由计算机、CCD摄像机、投影仪以及刀具转台组成。采用多频外差相移法对刀具包裹相位进行展开,并得出刀具的绝对相位。基于张正友标定法,提出采用50%灰度棋盘格和黑白棋盘格对CCD摄像机-投影仪标定的方法。在系统标定的基础上对刀具进行三维测量实验,得出刀具的三维点云,并重建出刀具的三维模型。实验结果表明,该系统能够准确的对刀具进行三维测量,为其他复杂刀具的测量奠定基础。
This paper proposes a 3D measurement system based on surface structured light,which is composed of a computer,a CCD camera,a projector and a tool turntable. The tool＇s wrapped phase is measured with the multifrequency heterodyne phase shift method. Thereafter,the absolute phase of the tool can be computed. Based on the calibration method of Zhang,this paper adopts the 50% gray checkerboard and a black and white checkerboard to calibrate CCD Camera-Projector. After system calibration,a 3D measurement experiment is conducted to measure the tool. By doing so,the 3D point cloud of the tool can be obtained,hence the tool＇s 3D model can be built. The experiment result demonstrates that the 3D measurement system proposed in this paper can measure tools accurately,which lays a foundation for measurement of other more complex tools.
作者
刘今越
刘佳斌
郭志红
任东城
任志斌
李洋
Liu Jinyue Liu Jiabin Guo Zhihong Ren Dongcheng Ren Zhibin Li Yang(School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China)
出处
《电子测量与仪器学报》
CSCD
北大核心
2016年第12期1884-1891,共8页
Journal of Electronic Measurement and Instrumentation
关键词
面结构光
CCD摄像机-投影仪标定
多频外差相移法
刀具三维测量
surface structured light
CCD camera and projector calibration
multi-frequency heterodyne phase-shift method
3D measurement of tools
