Title :
Robot aerobics: four easy steps to a more flexible calibration
Author :
Stevenson, Daniel E. ; Fleck, Margaret M.
Author_Institution :
Dept. of Comput. Sci., Iowa Univ., Iowa City, IA, USA
Abstract :
Presents a method for calibrating intrinsic and extrinsic camera parameters. This algorithm can easily be modified by other users to suit their particular calibration needs, without requiring a high-precision calibration target or complicated linear algebra. The algorithm uses controlled motions and a single light source to simulate calibration targets in convenient 3D locations. These convenient calibration targets enable us to simplify the calibration algorithm and gather dense data for lens distortion. Dense data makes the distortion correction more accurate than traditional low-order polynomial fits, and allows us to calibrate wide-angle lenses (>70° field of view)
Keywords :
calibration; cameras; charge-coupled devices; image processing equipment; lenses; manipulator dynamics; robot vision; algorithm; calibrate wide-angle lens calibration; calibration needs; calibration target simulation; controlled motions; convenient 3D locations; dense data; distortion correction; extrinsic camera parameter calibration; flexible calibration; intrinsic camera parameter calibration; lens distortion; robot aerobics; single light source; Calibration; Cameras; Cities and towns; Computer science; Lenses; Lighting control; Linear algebra; Motion control; Polynomials; Robot vision systems;
Conference_Titel :
Computer Vision, 1995. Proceedings., Fifth International Conference on
Conference_Location :
Cambridge, MA
Print_ISBN :
0-8186-7042-8
DOI :
10.1109/ICCV.1995.466810
