@Article{sl.2011.005.001,
AUTHOR = {Shang Yang, Sun Xiangyi, Yang Xia, Wang Xi, Yu Qifeng},
TITLE = {A New Method of Camera Calibration for Large Field Videometrics},
JOURNAL = {Structural Longevity},
VOLUME = {5},
YEAR = {2011},
NUMBER = {1},
PAGES = {1--15},
URL = {http://www.techscience.com/sl/v5n1/42821},
ISSN = {1944-6128},
ABSTRACT = {A new method of camera calibration is proposed for high-precise
videometrics in large field. The camera to be calibrated and the control points used
in the new method are both close to the ground. In the condition that the control
points and the optical center of the camera are approximately coplanar, the principle
point position, focal length, lens distortion coefficients and the camera’s position
and attitude parameters are calibrated precisely by the method. Two calibration
images are taken by the camera to be calibrated in measurement state and vertical
rotation state respectively. If the vertical tangent lens distortion can be neglected or
the movement field of the targets to be measured are close to the ground, only the
measurement state calibration image is needed to calibrate the camera’s parameters
except the vertical tangent lens distortion coefficients. By the new method, to calibrate the camera’s intrinsic parameters in laboratory in advance is not needed. The
new method breaks the localization for the traditional camera calibration methods
in large field videometrics which require the control points must be distributed in
space rationally.},
DOI = {10.3970/sl.2011.005.001}
}