Title :
A practical method for calibrating omnidirectional cameras using LCD panel
Author :
Zhang, Liwei ; Zhang, Jianwei ; Hu, Ying
Author_Institution :
Inst. of Autom., Chinese Acad. of Sci., Beijing, China
Abstract :
Calibration precision of omnidirectional cameras is low because of severe distortion in the image. In this paper, we present an LCD-based method for calibrating an omnidirectional vision system with a parabolic mirror. We focus on calibration using one or more LCD displays. The calibration is implemented with a few images. Experimental results show that the reprojected error is less than half the error of the printed chessboard model. The system can be even calibrated with only one image and the parameter precision is still high. The method is economic and easy to implement.
Keywords :
calibration; image sensors; liquid crystal displays; mirrors; LCD panel; calibration precision method; image distortion; omnidirectional camera; omnidirectional vision system; parabolic mirror; printed chessboard model; reprojected error; Cameras;
Conference_Titel :
Information and Automation, 2009. ICIA '09. International Conference on
Conference_Location :
Zhuhai, Macau
Print_ISBN :
978-1-4244-3607-1
Electronic_ISBN :
978-1-4244-3608-8
DOI :
10.1109/ICINFA.2009.5204948
