A Three-Dimensional Reconstruction Method Based on Telecentric Epipolar Constraints

被引:0
作者
Li, Qinsong [1 ,2 ,3 ]
Ge, Zhendong [2 ,3 ]
Yang, Xin [2 ,3 ]
Zhu, Xianwei [1 ,2 ]
机构
[1] Shenzhen Univ, State Key Lab Radio Frequency Heterogeneous Integr, Shenzhen 518060, Peoples R China
[2] Shenzhen Univ, Inst Intelligent Opt Measurement & Detect, Shenzhen 518060, Peoples R China
[3] Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China
关键词
telecentric calibration; epipolar constraint; 3D measurement; FRINGE PROJECTION PROFILOMETRY; FLEXIBLE CALIBRATION METHOD; VISION SYSTEM; ACCURATE CALIBRATION; CAMERA; MOTION; LENS; INTERFEROMETRY; SHAPE;
D O I
10.3390/photonics11090804
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
When calibrating a microscopic fringe projection profile system with a telecentric camera, the orthogonality of the camera causes an ambiguity in the positive and negative signs of its external parameters. A common solution is to introduce additional constraints, which often increase the level of complexity and the calibration cost. Another solution is to abandon the internal/external parameter models derived from the physical imaging process and obtain a numerically optimal projection matrix through the least squares solution. This paper proposes a novel calibration method, which derives a telecentric epipolar constraint model from the conventional epipolar constraint relationship and uses this constraint relationship to complete the stereo calibration of the system. On the one hand, since only the camera's intrinsic parameters are needed, there is no need to introduce additional constraints. On the other hand, the solution is optimized based on the full consideration of the imaging model to make the parameters confirm to the physical model. Our experiments proved the feasibility and accuracy of the method.
引用
收藏
页数:16
相关论文
共 51 条
[1]   Telecentric lens for precision machine vision [J].
Baldwin, G .
SECOND IBEROAMERICAN MEETING ON OPTICS, 1996, 2730 :440-443
[2]   Telecentric camera calibration with virtual patterns [J].
Chen, Chao ;
Chen, Bin ;
Pan, Bing .
MEASUREMENT SCIENCE AND TECHNOLOGY, 2021, 32 (12)
[3]   Calibration of telecentric cameras with an improved projection model [J].
Chen, Kepeng ;
Shi, Tielin ;
Wang, Xiao ;
Zhang, Yichun ;
Hong, Yuan ;
Liu, Qiang ;
Liao, Guanglan .
OPTICAL ENGINEERING, 2018, 57 (04)
[4]   Telecentric stereo micro-vision system: Calibration method and experiments [J].
Chen, Zhong ;
Liao, Huiyang ;
Zhang, Xianmin .
OPTICS AND LASERS IN ENGINEERING, 2014, 57 :82-92
[5]   A review of the existing performance verification infrastructure for micro-CMMs [J].
Claverley, J. D. ;
Leach, R. K. .
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY, 2015, 39 :1-15
[6]   A high precision micro/nano CMM using piezoresistive tactile probes [J].
Dai, Gaoliang ;
Buetefisch, Sebastian ;
Pohlenz, Frank ;
Danzebrink, Hans-Ulrich .
MEASUREMENT SCIENCE AND TECHNOLOGY, 2009, 20 (08)
[7]   Accurate and flexible calibration method for a 3D microscopic structured light system with telecentric imaging and Scheimpflug projection [J].
Deng, Huiwen ;
Hu, Pengyu ;
Zhang, Guofeng ;
Xia, Chengsheng ;
Cai, Yindi ;
Yang, Shuming .
OPTICS EXPRESS, 2023, 31 (02) :3092-3113
[8]  
Feng Guanming, 2011, 2011 4th International Congress on Image and Signal Processing (CISP 2011), P1377, DOI 10.1109/CISP.2011.6100394
[9]   Calibration of fringe projection profilometry: A comparative review [J].
Feng, Shijie ;
Zuo, Chao ;
Zhang, Liang ;
Tao, Tianyang ;
Hu, Yan ;
Yin, Wei ;
Qian, Jiaming ;
Chen, Qian .
OPTICS AND LASERS IN ENGINEERING, 2021, 143
[10]   Fringe projection techniques: Whither we are? [J].
Gorthi, Sai Siva ;
Rastogi, Pramod .
OPTICS AND LASERS IN ENGINEERING, 2010, 48 (02) :133-140