Method for calibration accuracy improvement of projector-camera-based structured light system
被引:17
作者:
Nie, Lei
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Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Comp Vis & Virtual Real Technol, Shenzhen, Peoples R ChinaChinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Comp Vis & Virtual Real Technol, Shenzhen, Peoples R China
Nie, Lei
[1
]
Ye, Yuping
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Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Comp Vis & Virtual Real Technol, Shenzhen, Peoples R ChinaChinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Comp Vis & Virtual Real Technol, Shenzhen, Peoples R China
Ye, Yuping
[1
]
Song, Zhan
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Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Comp Vis & Virtual Real Technol, Shenzhen, Peoples R China
Chinese Univ Hong Kong, Hong Kong, Hong Kong, Peoples R ChinaChinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Comp Vis & Virtual Real Technol, Shenzhen, Peoples R China
Song, Zhan
[1
,2
]
机构:
[1] Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Comp Vis & Virtual Real Technol, Shenzhen, Peoples R China
[2] Chinese Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China
Calibration is a critical step for the projector-camera-based structured light system (SLS). Conventional SLS calibration means usually use the calibrated camera to calibrate the projector device, and the optimization of calibration parameters is applied to minimize the two-dimensional (2-D) reprojection errors. A three-dimensional (3-D)-based method is proposed for the optimization of SLS calibration parameters. The system is first calibrated with traditional calibration methods to obtain the primary calibration parameters. Then, a reference plane with some precisely printed markers is used for the optimization of primary calibration results. Three metric error criteria are introduced to evaluate the 3-D reconstruction accuracy of the reference plane. By treating all the system parameters as a global optimization problem and using the primary calibration parameters as initial values, a nonlinear multiobjective optimization problem can be established and solved. Compared with conventional calibration methods that adopt the 2-D reprojection errors for the camera and projector separately, a global optimal calibration result can be obtained by the proposed calibration procedure. Experimental results showed that, with the optimized calibration parameters, measurement accuracy and 3-D reconstruction quality of the system can be greatly improved. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License.
机构:
Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
Capital Normal Univ, Beijing Adv Innovat Ctr Imaging Technol, Beijing 100048, Peoples R ChinaTsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
Chen, Rui
Xu, Jing
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Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R ChinaTsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
Xu, Jing
Zhang, Song
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机构:
Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USATsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
Zhang, Song
Chen, Heping
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Texas State Univ, Ingram Sch Engn, San Marcos, TX 78746 USATsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
Chen, Heping
Guan, Yong
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机构:
Capital Normal Univ, Beijing Adv Innovat Ctr Imaging Technol, Beijing 100048, Peoples R ChinaTsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
Guan, Yong
Chen, Ken
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机构:
Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R ChinaTsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
机构:
Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
Capital Normal Univ, Beijing Adv Innovat Ctr Imaging Technol, Beijing 100048, Peoples R ChinaTsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
Chen, Rui
Xu, Jing
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R ChinaTsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
Xu, Jing
Zhang, Song
论文数: 0引用数: 0
h-index: 0
机构:
Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USATsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
Zhang, Song
Chen, Heping
论文数: 0引用数: 0
h-index: 0
机构:
Texas State Univ, Ingram Sch Engn, San Marcos, TX 78746 USATsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
Chen, Heping
Guan, Yong
论文数: 0引用数: 0
h-index: 0
机构:
Capital Normal Univ, Beijing Adv Innovat Ctr Imaging Technol, Beijing 100048, Peoples R ChinaTsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China
Guan, Yong
Chen, Ken
论文数: 0引用数: 0
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机构:
Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R ChinaTsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China