TY - JOUR
T1 - A novel method for camera calibration with orthogonal vanishing points
AU - Lu, Jin
AU - Sun, Huibin
AU - Chang, Zhiyong
PY - 2014/2
Y1 - 2014/2
N2 - A novel camera calibrating method based on orthogonal vanishing points is proposed after analyzing camera model, calibration of single and stereo vision systems and geometrical characteristics of the vanishing point. Only one camera photographing at least three checkerboard patterns in different orientations is required. The pinhole and the first two terms of radial distortion model is introduced. The presented method mainly contains the computation and optimization of vanishing points, a linear calibration of intrinsic parameters, the improved Tsai's two-steps for extrinsic parameters and a nonlinear global refinement. Experimental result demonstrates that the proposed algorithm is fast and accurate. After global optimization, the re-projective mean pixel error is 0.0043 pixel and the time consumption is 1.7911260 s. This novel method can be widely applied in fields including the computer vision research, the industry three-dimensional measurement and reconstruction and road mapping.
AB - A novel camera calibrating method based on orthogonal vanishing points is proposed after analyzing camera model, calibration of single and stereo vision systems and geometrical characteristics of the vanishing point. Only one camera photographing at least three checkerboard patterns in different orientations is required. The pinhole and the first two terms of radial distortion model is introduced. The presented method mainly contains the computation and optimization of vanishing points, a linear calibration of intrinsic parameters, the improved Tsai's two-steps for extrinsic parameters and a nonlinear global refinement. Experimental result demonstrates that the proposed algorithm is fast and accurate. After global optimization, the re-projective mean pixel error is 0.0043 pixel and the time consumption is 1.7911260 s. This novel method can be widely applied in fields including the computer vision research, the industry three-dimensional measurement and reconstruction and road mapping.
KW - Algorithm optimization
KW - Camera calibration
KW - Machine vision
KW - Vanishing point model
UR - http://www.scopus.com/inward/record.url?scp=84897897169&partnerID=8YFLogxK
U2 - 10.3788/CJL201441.0208001
DO - 10.3788/CJL201441.0208001
M3 - 文章
AN - SCOPUS:84897897169
SN - 0258-7025
VL - 41
JO - Zhongguo Jiguang/Chinese Journal of Lasers
JF - Zhongguo Jiguang/Chinese Journal of Lasers
IS - 2
M1 - 0208001
ER -