Number Confirming of CCD Camera Calibration Plot

Abstract

A simple method for confirming the number of camera calibration plots was proposed in terms of the mathematics model of the pin-hole single camera with radial distortion. The linear equation was obtained by using the radial alignment constraint,and the coefficients of the linear equation was solved. A series of values of the coefficients were achieved by increasing the number of the camera calibration plots. At last,we judged whether the number was enough through observing whether the values of the coefficients was stable.