IPIU 2003 (제15회 영상처리 및 이해에 관한 워크샵)
Current Result Document : 5 / 5
| 한글제목(Korean Title) |
The new projective invariances of concentric circles and their applications: camera calibration |
| 영문제목(English Title) |
The new projective invariances of concentric circles and their applications: camera calibration |
| 저자(Author) |
Jun-Sik Kim
In-So KweonO
Kuk-Jin Yoon
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| 원문수록처(Citation) |
VOL 15 NO. 01 PP. 0328 ~ 0333 (2003. 01) |
한글내용
(Korean Abstract) |
In this paper, we investigate the projective properties of the concentric circle pattern. Concentric circles have a couple of algebraic constraints; the rank 1 decomposition property and the rank 2 constraints. In addition, from the pole-polar relationship between projected circles and the projected circle center, we can find the vanishing line invariant to the translation on the plane. We use these intrinsic properties of the concentric circles to determine the camera matrix about the scene. The imaged circular point can be estimated directly from the projected concentric circles, without the additional homography computation. We demonstrate that camera calibration is possible with a linear algorithm using three or more views of a set of concentric circles with known radii.
We validate the performance of the method using both synthetic and real images. Our method shows a comparable performance with respect to similar calibration methods using a plane. The use of concentric circles, however, greatly simplifies the calibration problem.
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영문내용
(English Abstract) |
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