Abstract
A method in order to calculate the positions of feature points on a polyhedral object is presented. The method uses a single picture of both an object and its mirror images in a mirror or mirrors set in a field of vision. The unknown 3D coordinates of feature points on an object can be calculated by solving the simultaneous equations which are derived from the 2D coordinates of a pair of projected picture points corresponding to an object point and its mirror image point. The hidden surfaces of an object being imaged in the mirror, the positions of feature points on the hidden surface can be obtained. The results of fundamental experiments are shown.
