The NURBS book (2nd ed.)
A Unifying Theory for Central Panoramic Systems and Practical Applications
ECCV '00 Proceedings of the 6th European Conference on Computer Vision-Part II
Multiple View Geometry in Computer Vision
Multiple View Geometry in Computer Vision
A Generic Camera Calibration Method for Fish-Eye Lenses
ICPR '04 Proceedings of the Pattern Recognition, 17th International Conference on (ICPR'04) Volume 1 - Volume 01
A Flexible Technique for Accurate Omnidirectional Camera Calibration and Structure from Motion
ICVS '06 Proceedings of the Fourth IEEE International Conference on Computer Vision Systems
Which pattern? Biasing aspects of planar calibration patterns and detection methods
Pattern Recognition Letters
Efficient generic calibration method for general cameras with single centre of projection
Computer Vision and Image Understanding
Calibration of omnidirectional cameras in practice: A comparison of methods
Computer Vision and Image Understanding
Multiview camera-calibration framework for nonparametric distortions removal
IEEE Transactions on Robotics
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The generic camera model considered in this work can be regarded as a mapping between image pixels and viewing rays. These rays are independent of each other which prohibits a standard parametric approach for calibration and modeling of these cameras. Spline surfaces are used here to calibrate and model generic imaging devices. This allows the utilization of sparse planar calibration boards and facilitates general forward projection as well as subpixel back projection. In contrast to other works the complete image area is to be calibrated, not only a part of it. This is done by adding further views of calibration patterns after an initial calibration step, which expands the calibrated region of the camera image. Results with two different imaging devices prove the general applicability of the proposed method and the comparison to an established parametric calibration procedure shows its superiority.