Near field maneuvering for ar-device using image tracking

A method of spatially interrelating an Augmented Reality (AR)-device relative to a coordinate system, wherein the AR-device comprises a camera and a processing unit, the method comprising:

• visually detecting and identifying a permanent marker, wherein the permanent marker has a defined pose relative to the coordinate system;
• determining a relative pose between the AR-device and the permanent marker;
• visually detecting and identifying a temporary marker by a coded design, wherein the temporary marker has an undefined pose relative to the coordinate system;
• determining a relative pose between the permanent marker and the temporary marker;
• based on the determined relative pose between the permanent marker and the temporary marker, defining a pose of the temporary marker relative to the coordinate system;
• and
• determining a relative pose between the AR-device and the temporary marker.

A temporary marker in an Augmented Reality (AR) system for temporarily extending the range of usability of the AR-system including a permanent marker having a defined pose relative to a coordinate system, an AR-device having a camera and a processing unit, wherein the AR-device is configured to visually detect and identify the permanent marker, and determine a relative pose between the AR-device and the permanent marker, the temporary marker comprising:

• a coded design and an undefined pose relative to the coordinate system, the coded design being visually detectable and identifiable by the AR-device,
• wherein the coded design is used by the AR-device to:
• determine a relative pose between the permanent marker and the temporary marker,
• define a pose of the temporary marker relative to the coordinate system, and
• determine a relative pose between the AR-device and the temporary marker.