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Imaging Components, Systems, and Processing

Experimental analysis and improvement on camera calibration pattern

[+] Author Affiliations
Lulu Li

Chinese Academy of Sciences, The Institute of Optics and Electronics, Chengdu 610209, China

University of Electronic Science and Technology of China, School of Optoelectronic Information, Chengdu 610054, China

University of Chinese Academy of Sciences, Beijing 100049, China

Wenchuan Zhao

Chinese Academy of Sciences, The Institute of Optics and Electronics, Chengdu 610209, China

Fan Wu

Chinese Academy of Sciences, The Institute of Optics and Electronics, Chengdu 610209, China

Yong Liu

University of Electronic Science and Technology of China, School of Optoelectronic Information, Chengdu 610054, China

Wei Gu

Chinese Academy of Sciences, The Institute of Optics and Electronics, Chengdu 610209, China

Opt. Eng. 53(1), 013104 (Jan 20, 2014). doi:10.1117/1.OE.53.1.013104
History: Received September 28, 2013; Revised December 9, 2013; Accepted December 17, 2013
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Abstract.  Three typical calibration patterns, including checkerboard, Gaussian point grid, and crossed fringe patterns, are chosen to find a good one for camera calibration. Through computer simulation and camera intrinsic parameter calibration experiment, the crossed sine fringe pattern using fringe analysis method is defined as the one with the best precision. However, the phase information is obtained by Fourier transform (FT), which cannot detect the points located in the edge of the point grid. Thus, an innovative method uses phase shifting in the fringe analysis process is proposed, it can avoid the extraction misplacement in the edge of the point grid by the FT method, and make the crossed sine fringe pattern more usable in camera calibration. The camera extrinsic parameter calibration experiment proves the effectiveness of the recent method.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Topics

Calibration ; Cameras

Citation

Lulu Li ; Wenchuan Zhao ; Fan Wu ; Yong Liu and Wei Gu
"Experimental analysis and improvement on camera calibration pattern", Opt. Eng. 53(1), 013104 (Jan 20, 2014). ; http://dx.doi.org/10.1117/1.OE.53.1.013104


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