Automatic conic and line grouping for calibration of central catadioptric camera

Duan, Wenting and Allinson, Nigel (2011) Automatic conic and line grouping for calibration of central catadioptric camera. In: 14th International Conference on Computer Analysis of Images and Patterns, CAIP 2011, August 29-31 2011, Seville, Spain.

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Item Type:Conference or Workshop contribution (Presentation)
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This paper presents an automatic method for detecting the conics from an omnidirectional image and use the conics for camera calibration. The method assumes the camera system is orientated in a way that the mirror axis is orthogonal to the floor. In this way two special cases of parallel lines can be obtained: one set of lines are orthogonal to the mirror axis; and the other set is lines that are coplanar with the mirror axis. Based on these special lines' geometric properties under central catadioptric projection, we show that automatic calibration of catadioptric from a single image can be achieved. The experiment results show that the method not only improve the accuracy of the conic fitting in the image but also provide robustness against conic occlusion and noise. © 2011 Springer-Verlag.

Additional Information:Lecture Notes in Computer Science Volume 6854 2011 Conference Code: 86361
Keywords:Automatic calibration, Automatic method, Camera calibration, Camera systems, Catadioptric cameras, Central catadioptric, Central catadioptric cameras, Conic fitting, Geometric properties, Omnidirectional image, Parallel line, Set of lines, Single images, Vanishing point, Calibration, Image analysis, Mirrors, Cameras
Subjects:G Mathematical and Computer Sciences > G740 Computer Vision
Divisions:College of Science > School of Computer Science
ID Code:8295
Deposited On:22 Mar 2013 13:39

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