Markeranordnung und Verfahren zur intraoperativen Bestimmung einer Position und Orientierung eines beweglichen bildgebenden Systems

The arrangement i.e. marker plate (1), has dot structures (2) arranged in a portion such that the dot structures form collinear dot amounts. A dot-based twin ratio is determined for the collinear dot amounts depending on structure coordinates of the dot structures of the collinear dot amounts. The dot structures are arranged in the portion such that the collinear dot amounts are uniquely characterized by a feature vector. The feature vector comprises the dot-based twin ratio is determined depending on the structure coordinates of the dot structures of the collinear dot amounts. An independent claim is also included for a method for intraoperative determination of a position and orientation of a movable imaging system.