Camera calibration from images of spheres
H Zhang, KW Kwan-yee…�- IEEE Transactions on�…, 2007 - ieeexplore.ieee.org
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2007•ieeexplore.ieee.org
This paper introduces a novel approach for solving the problem of camera calibration from
spheres. By exploiting the relationship between the dual images of spheres and the dual
image of the absolute conic (IAC), it is shown that the common pole and polar with regard to
the conic images of two spheres are also the pole and polar with regard to the IAC. This
provides two constraints for estimating the IAC and, hence, allows a camera to be calibrated
from an image of at least three spheres. Experimental results show the feasibility of the�…
spheres. By exploiting the relationship between the dual images of spheres and the dual
image of the absolute conic (IAC), it is shown that the common pole and polar with regard to
the conic images of two spheres are also the pole and polar with regard to the IAC. This
provides two constraints for estimating the IAC and, hence, allows a camera to be calibrated
from an image of at least three spheres. Experimental results show the feasibility of the�…
This paper introduces a novel approach for solving the problem of camera calibration from spheres. By exploiting the relationship between the dual images of spheres and the dual image of the absolute conic (IAC), it is shown that the common pole and polar with regard to the conic images of two spheres are also the pole and polar with regard to the IAC. This provides two constraints for estimating the IAC and, hence, allows a camera to be calibrated from an image of at least three spheres. Experimental results show the feasibility of the proposed approach.
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