1. A method for determining a pose of a user comprising the steps of: capturing a video image sequence of an environment including at least one coded marker, wherein the at least one coded marker comprises a coding matrix including a plurality of columns and rows with a numbered square at intersections of the columns and rows, the coding matrix being surrounded by a rectangular frame and a code of the at least one marker being deteimined by the numbered squares being covered by a circle; detecting if the at least one coded marker is present in the video images; extracting feature correspondences of the at least one coded marker if the at least one marker is present; determining a code of the at least one coded marker using the feature correspondences; and comparing the determined code with a database of predetermined codes to determine the pose of the user.