Patent attributes
A posture for a user is derived and used in conjunction with a known physical location of a tangible object or a presented virtual object to determine when the user selects at least a portion of the object. The derived posture comprises a model having a user origin and a gestural terminus, from which a designation vector intersecting with the selected object is determined. The designation vector may extend from a user origin of the dominant eye through a gestural terminus comprising a tip of an outstretched finger. For example, the user may point to a chair in the room to select the physical chair, or point to a picture of a chair presented via a display device to select the picture.