Patent ID: 7511736

Claim:
An augmented reality navigation system coupled to a navigable vehicle, having a camera adapted to capture a plurality of image frames of an observable scene in accordance with said camera orientation, a display, and a base orientation sensor, the system further comprises: a computer operable to: obtain an initial orientation from a said base orientation sensor; analyze a first image captured from said camera, and select a plurality of reference image components (RIC's) therein; identify said RIC's in a subsequently captured image and calculate a displacement for said RIC's between frames; compute a current orientation from said initial orientation and displacement, or a recently obtained orientation and said displacement; generate an overlay comprising representation of objects, at least some of said objects selected using said current orientation; periodically update said current orientation, using information received from said base sensor, received after at least one of said computations of current orientation using said displacement; and, wherein said display is adapted to display said scene observable by said camera, and said overlay in registration.