較正用基準点チャートの設定誤差を考慮したカメラパラメータ較正誤差の定式化(機械力学,計測,自動制御)

概要

論文の詳細を見る
Some important parameters are called the camera parameters. They include the principal point, which is the intersection of the optical axis of a camera with the image plane, the principal distance, which is the distance between the center of the lens and the image plane, and the length of 1 pixel on the image plane. The information of the line of sight used for 3D measurements is obtained by transforming the position of the object's image using the above described camera parameters. Highly accurate 3D measurements are required to calibrate the camera parameters. In a 2-plane calibration method, a calibration fiducial chart containing fiducial points, whose positions on the plane are assumed to be known, is moved in the depth direction, and pictures of the calibration fiducial chart are taken before and after the motion. Here, position and orientation errors of the fiducial chart, referred to "setup errors" in this paper, greatly affect calibration accuracy. In this paper, the authors formulate the relationships between the setup errors of the calibration fiducial chart and calibration accuracy.
社団法人日本機械学会の論文
2008-12-25