A New Technique for Camera Calibration Using Circle Template

Ya Wei Liu; Jian Wei Li

doi:10.4028/www.scientific.net/KEM.467-469.1917

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 467-469A New Technique for Camera Calibration Using...

A New Technique for Camera Calibration Using Circle Template

Abstract:

In view of the poor anti-noise performance of traditional methods, the principle of camera calibration is analyzed based on calibration template with planar circles, and a new calibration technique is proposed based on pin-hole perspective model. Firstly, the edges of image ellipses are located in sub-pixel by spatial-moment operator. Then elliptic equations are obtained by the Least Square Fitting method, and common tangents of two arbitrary ellipses are also calculated. Finally, the extrinsic and intrinsic parameters are computed by the Radial Alignment Constraint (RAC) model. Experiments results indicate that proposed method has a goof performance of lower computation complexity and higher precision.

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Periodical:

Key Engineering Materials (Volumes 467-469)

Pages:

1917-1920

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https://doi.org/10.4028/www.scientific.net/KEM.467-469.1917

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Online since:

February 2011

Authors:

Ya Wei Liu, Jian Wei Li

Keywords:

Camera Calibration, Computer Vision, Edge Detection, Sub-Pixel

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