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학술대회 Estimation of Camera Parameters from Arbitrary Parallelograms
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김재헌, 최병태
International Conference on Intelligent Robots and Systems (IROS) 2008, pp.3597-3603
08MS4500, 디지털 크리쳐 제작 S/W 개발, 최병태
A novel method is introduced to estimate the camera parameters when there is no useful information in the scene but in which two or more parallelograms exist. First, the proposed method acquires the infinite homography by rectification of the imaged parallelograms instead of the general method that uses vanishing point correspondences directly. Due to this peculiar approach, the additional constraints that arise from the parallelograms can be acquired. Second, the infinite homography estimated together with the additional constraints is applied to the calibration of a camera. Owing to the effect of the additional constraints, more accurate estimation results can be acquired. Moreover, even if the number of vanishing points induced from parallelograms is three, the infinite homography and, consequently, camera parameters can be computed without the need for an estimation of the fundamental matrix that requires many point correspondences between the views for accuracy. ©2008 IEEE.
KSP 제안 키워드
Fundamental Matrix, General method, Infinite homography, Point correspondence, Vanishing point, accurate estimation, camera parameters, need for, novel method