Novel calibration method for structured-light system with an out-of-focus projector

被引:166
作者
Li, Beiwen [1 ]
Karpinsky, Nikolaus [1 ]
Zhang, Song [1 ]
机构
[1] Iowa State Univ, Dept Mech Engn, Ames, IA 50011 USA
基金
美国国家科学基金会;
关键词
3-DIMENSIONAL SHAPE MEASUREMENT; CAMERA CALIBRATION; PROFILOMETRY;
D O I
10.1364/AO.53.003415
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A structured-light system with a binary defocusing technique has the potential to have more extensive application due to its high speeds, gamma-calibration-free nature, and lack of rigid synchronization requirements between the camera and projector. However, the existing calibration methods fail to achieve high accuracy for a structured-light system with an out-of-focus projector. This paper proposes a method that can accurately calibrate a structured-light system even when the projector is not in focus, making it possible for high-accuracy and high-speed measurement with the binary defocusing method. Experiments demonstrate that our calibration approach performs consistently under different defocusing degrees, and a root-mean-square error of about 73 mu m can be achieved with a calibration volume of 150(H) mm x 250(W) mm x 200(D)mm. (C) 2014 Optical Society of America
引用
收藏
页码:3415 / 3426
页数:12
相关论文
共 31 条
[1]  
Albarelli A., 2009, IEEE T PATTERN ANAL, V31, P376, DOI [10.5244/C.24.16, DOI 10.5244/C.24.16]
[2]  
BROWN DC, 1971, PHOTOGRAMM ENG, V37, P855
[3]   Three-dimensional shape measurement with an arbitrarily arranged fringe projection profilometry system [J].
Du, Hua ;
Wang, Zhaoyang .
OPTICS LETTERS, 2007, 32 (16) :2438-2440
[4]  
Ellenberger S.L., 2000, ASCI DISSERTATION SE
[5]   Ultrafast 3-D shape measurement with an off-the-shelf DLP projector [J].
Gong, Yuanzheng ;
Zhang, Song .
OPTICS EXPRESS, 2010, 18 (19) :19743-19754
[6]   Least-squares fitting of carrier phase distribution by using a rational function in profilometry fringe projection [J].
Guo, Hongwei ;
Chen, Mingyi ;
Zheng, Peng .
OPTICS LETTERS, 2006, 31 (24) :3588-3590
[7]   Improving calibration accuracy of structured light systems using plane-based residual error compensation [J].
Han, Dong ;
Chimienti, Antonio ;
Menga, Giuseppe .
OPTICAL ENGINEERING, 2013, 52 (10)
[8]   THE FREQUENCY RESPONSE OF A DEFOCUSED OPTICAL SYSTEM [J].
HOPKINS, HH .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1955, 231 (1184) :91-103
[9]   Calibration of a three-dimensional shape measurement system [J].
Hu, QY ;
Huang, PS ;
Fu, QL ;
Chiang, FP .
OPTICAL ENGINEERING, 2003, 42 (02) :487-493
[10]   Flexible camera calibration using not-measured imperfect target [J].
Huang, Lei ;
Zhang, Qican ;
Asundi, Anand .
APPLIED OPTICS, 2013, 52 (25) :6278-6286