Title :
Dual camera calibration for 3-D machine vision metrology
Author :
Sid-Ahmed, M.A. ; Boraie, Mohamed T.
Author_Institution :
Dept. of Electr. Eng., Windsor Univ., Ont., Canada
fDate :
6/1/1990 12:00:00 AM
Abstract :
A dual-camera calibration algorithm and procedure are presented. The algorithm is based on the method of direct linear transformation and results in an overdetermined set of linear algebraic equations that can be utilized in determining the coordinate position of some identifiable feature in a scene relative to any set of orthogonal axes. Both radial and tangential lens distortions are considered in a second step of the calibration algorithm to improve the accuracy of the position sensor. Since the algorithm incorporates both types of lens distortions, it can be applied to a camera with any combinations of lenses, e.g. a lens system with a supplementary lens for close-up observations
Keywords :
CCD image sensors; calibration; computer vision; computerised picture processing; lenses; position measurement; 3-D machine vision metrology; CCD image sensor; calibration algorithm; close-up observations; coordinate position; direct linear transformation; dual-camera calibration; linear algebraic equations; radial lens distortions; robots; tangential lens distortions; Calibration; Cameras; Equations; Layout; Lenses; Machine vision; Metrology; Optical distortion; Robot vision systems; Service robots;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on