Coplanar circles, quasi-affine invariance and calibration Export

@article{citeulike:2285524, abstract = {We define the lines associated with two coplanar circles, and give the distributions of any two coplanar circles and their associated lines. Further we prove that the distribution of two coplanar circles with no real intersection and their associated lines is a quasi-affine invariance. Then the results are applied to calibrating a camera. The calibration method has the advantages: (1) it is based on conic fitting; (2) it does not need any matching. Experiments with two separate circles validate our quasi-affine invariance and show that the estimated camera intrinsic parameters are as good as those obtained by Zhang's (2000) method.}, author = {Wu, Yihong and Li, Xinju and Wu, Fuchao and Hu, Zhanyi}, citeulike-article-id = {2285524}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.imavis.2005.11.008}, citeulike-linkout-1 = {http://www.sciencedirect.com/science/article/B6V09-4J2KTBR-2/2/153996e82c6c9d63c7b41be6167c029a}, day = {1}, doi = {10.1016/j.imavis.2005.11.008}, journal = {Image and Vision Computing}, keywords = {calibration, camera, circle}, month = {April}, number = {4}, pages = {319--326}, posted-at = {2008-03-18 17:32:59}, priority = {0}, title = {Coplanar circles, quasi-affine invariance and calibration}, url = {http://dx.doi.org/10.1016/j.imavis.2005.11.008}, volume = {24}, year = {2006} }

TY - JOUR ID - citeulike:2285524 L3 - citeulike-article-id:2285524 N2 - We define the lines associated with two coplanar circles, and give the distributions of any two coplanar circles and their associated lines. Further we prove that the distribution of two coplanar circles with no real intersection and their associated lines is a quasi-affine invariance. Then the results are applied to calibrating a camera. The calibration method has the advantages: (1) it is based on conic fitting; (2) it does not need any matching. Experiments with two separate circles validate our quasi-affine invariance and show that the estimated camera intrinsic parameters are as good as those obtained by Zhang's (2000) method. IS - 4 JF - Image and Vision Computing EP - 326 TI - Coplanar circles, quasi-affine invariance and calibration VL - 24 SP - 319 KW - calibration KW - camera KW - circle AU - Wu, Yihong AU - Li, Xinju AU - Wu, Fuchao AU - Hu, Zhanyi PY - 2006/04/01/ UR - http://dx.doi.org/10.1016/j.imavis.2005.11.008 ER -