Patent ID: 7190378
Filing Date: 2007-03-13
Classification: G06F

Abstract:
1. A user interface for augmented reality (AR) systems and virtual reality (VR) systems which includes a computer and virtual graphics containing virtual objects positioned in three dimensional (3D) space and in which a user experiences a view of a 3D virtual or augmented scene which includes the virtual objects, and determines a viewpoint with the position of his head and a viewing direction with the orientation of his head, said interface comprising: a graphical representation of said virtual line pointer to said user, the virtual line pointer extending from the user's viewpoint into a 3D virtual scene oriented along a user's line of sight and fixed to the user's head, the virtual line pointer controlled with regard to position and orientation by the user's head movements; an intersection processor for calculating in the 3D virtual scene an intersection point of the virtual line pointer and a virtual object's surface, the intersection point accordingly being selected by the user's head movement and orientation; and a user operable device for triggering manipulation of the virtual scene at the selected intersection point.