Patent Document ID: 7881560
Application ID: 11587469
Patent Status: 1

Claim One:
1. A method for determining a position of a marker in an augmented reality system of a mobile terminal, comprising: capturing a plurality of marking points of the marker in a captured image where the marking points of the marker are at a same distance from a capturing unit; determining a plurality of marker vectors from the marking points of the marker; determining a distance from the marker to the capturing unit using the marker vectors; and determining a rotation matrix for specifying an orientation of the marker relative to the capturing unit using the distance determined and the marker vectors, wherein a leading sign of the rotation matrix is derived from the marker vectors that are parallel to one another, and wherein a plurality of leading signs of the rotation matrix are derived from a degree of non-parallelism of the parallel marker vectors, wherein a degree of non-parallelism is calculated from a standardized length and a direction of a vector cross product of the parallel marker vectors, and wherein the distance and the orientation of the marker are determined in order to determine a change of position of the mobile terminal.