Design and Calibration of the Wireless NC Turntable in 3D Point Clouds Measurement

WANG Hong-tao; WANG Xing; WANG Shi-zhou; ZHANG Li-yan; FENG Hang

doi:10.3969/j.issn.1000-1158.2012.02.04

PDF(1193 KB)

Acta Metrologica Sinica ›› 2012, Vol. 33 ›› Issue (2) : 115-120. DOI: 10.3969/j.issn.1000-1158.2012.02.04

Design and Calibration of the Wireless NC Turntable in 3D Point Clouds Measurement

WANG Hong-tao,WANG Xing,WANG Shi-zhou,ZHANG Li-yan,FENG Hang

Author information +

History +

Abstract

The complete 3D point cloud of an object can be obtained by the NC turntable and the measuring equipment based on binocular stereo vision principle.A four-axis NC turntable which can implement two-dimensional linear and rotational movement through any wire-connected or wireless control ways was designed.A novel method for accurate calibrating the two rotation axes of the NC turntable was presented.Firstly,more than three circular markers were pasted on the turntable board and the turntable was drove by the AC servo motors to rotate around the axis to be calibrated.Secondly,the position of the axis to be calibrated was calculated from the three-dimension coordinates of the center of the markers which are captured by a optical coordinate measuring system from the any different rotation angle position of the turntable.Finally,the optimization of the multiple positions was conducted to further improve the calibration accuracy and the final position of the axis in the CCD coordinate system was calibrated consequently.The result of the experiment shows that NC turntable has a flexible and convenient control way,the designed calibration approach has the features of briefness,low cost,high stability and reliability.

Key words

Metrology / 3D point cloud measurement / Binocular stereo vision / Infrared remote control / NC turntable;Turntable calibration / Multi-view registration

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

WANG Hong-tao,WANG Xing,WANG Shi-zhou,ZHANG Li-yan,FENG Hang. Design and Calibration of the Wireless NC Turntable in 3D Point Clouds Measurement[J]. Acta Metrologica Sinica. 2012, 33(2): 115-120 https://doi.org/10.3969/j.issn.1000-1158.2012.02.04

References

［1］邾继贵,叶声华.基于近景数字摄影的坐标精密测量关键技术研究［J］.计量学报,2005,26(3):207-211.
［2］龙玺,钟约先,李仁举,等.结构光三维扫描测量的三维拼接技术［J］.清华大学学报(自然科学版),2002,42(4):477-480.
［3］徐永安,杨钦,怀进鹏.激光旋转扫描系统中转轴标定及多视拼合［J］.中国激光,2005,32(5):559-662.
［4］徐永安,杨钦,怀进鹏.转台中心轴线标定误差分析与修正［J］.北京航空航天大学学报,2005,31(8):899-903.
［5］Park S Y,Subbarao M.A multi-view 3D modeling system based on stereo vision techniques［J］.Machine Vision and Applications,2005,16(3):148-156.
［6］Sadlo F,Weyrich T,Peikert R,et al.A practical structured light acquisition system for point2based geometry and texture［C］//Eurographics Symposium on Point-Based Graphics.N Y,USA: Stony Brook,2005:89-98.
［7］Chen X B, Xi J T, Jiang T, et al. Research and development of an accurate 3D shape measurement system based on fringe projection:Model analysis and performance evaluation［J］.Precision Engineering,2008,32(3):215-221.
［8］吴庆阳,李景镇,苏显渝,等.线结构光三维测量系统中旋转轴的标定方法［J］.中国激光,2008,35(8):1224-1227.
［9］秦大辉,王从军,史玉升,等.4轴3D激光测量系统中旋转工作台参数标定［J］.华中科技大学学报(自然科学版),2009,37(6):129-132.
［10］Xie Z X, Zhang Q M, Zhang G X. Modeling and calibration of a structured light sensor based five-axis scanning system［J］.Measurement,2004,36(2):185-194.
［11］解则晓,张成国,张国雄.线结构光测量数据的自动拼合方法［J］.中国机械工程,2005,16(9):775-778.
［12］解则晓,刘世晶,王琨.一种基于线结构光的五轴扫描测量系统［J］.光学技术,2009,35(4):519-522.
［13］胡民政,陈晓波,习俊通.两轴转台结构光三维扫描仪及多视自动拼合［J］.测试技术学报,2010,24(2):161-169.
［14］胡民政,习俊通.面向结构光三维测量的两轴转台标定［J］.上海交通大学学报,2010,44(4):506-511.
［15］蒋大为.空间解析几何及其应用［M］.北京:科学出版社,2004, 195-196.
［16］Arun K S, Huang T S, Blostein S D. Least-Squares Fitting of Two 3-D Point Sets［J］. IEEE Transactions on pattern analysis and machine intelligence,1987,PAMI-9(5):698-700.