Patents by Inventor Ben St John

Ben St John has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for determining the position of a marker in an augmented reality system
    Patent number: 7881560
    Abstract: The invention relates to a method for determining a position of a marker in an Augmented Reality System. After detection of the marking points of a marker in a captured image, marker vectors are determined using the marking points of the marker, and the distance of the marker from a capturing unit is calculated using the determined marker vectors. The determined distance and marker vectors are used in order to establish a rotation matrix reproducing an orientation of the marker in relation to the capturing unit, wherein the simplification that all marking points of the marker are located at the same distance from the capturing unit is valid and the signs of the rotation matrix are derived from substantially parallel marker vectors.
    Type: Grant
    Filed: October 1, 2005
    Date of Patent: February 1, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventor: Ben St John
  • Method for Determining the Position of a Marker in an Augmented Reality System
    Publication number: 20070242886
    Abstract: The invention relates to a method for determining a position of a marker in an Augmented Reality System. After detection of the marking points of a marker in a captured image, marker vectors are determined using the marking points of the marker, and the distance of the marker from a capturing unit is calculated using the determined marker vectors. The determined distance and marker vectors are used in order to establish a rotation matrix reproducing an orientation of the marker in relation to the capturing unit, wherein the simplification that all marking points of the marker are located at the same distance from the capturing unit is valid and the signs of the rotation matrix are derived from substantially parallel marker vectors.
    Type: Application
    Filed: October 1, 2005
    Publication date: October 18, 2007
    Inventor: Ben St John