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Augmented reality virtual guide system

  • US 9,280,852 B2
  • Filed: 11/08/2011
  • Issued: 03/08/2016
  • Est. Priority Date: 11/08/2010
  • Status: Active Grant
First Claim
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1. A computer-implemented method for providing an augmented reality interface, comprising:

  • preloading a plurality of image snippets from a server based on a location information of a portable electronic device, each of the plurality of image snippets being a smaller image file of a corresponding stored image;

    acquiring an image of a real-world scene and metadata with a camera of a portable electronic device;

    overlaying one or more of the plurality of image snippets corresponding to a location and a direction at which the image was originally captured based on the location information and a orientation information of the portable electronic device without manipulating the plurality of image snippets based on corner features of the image of the real-world scene;

    manipulating a retrieved image corresponding to an displayed image snippet based on matching corner feature information of the displayed image snippet generated and provided by the server and corner features of the image of the real-world scene, wherein the retrieved image is retrieved with metadata having selected features;

    combining the manipulated retrieved image with a currently observed real-world scene viewed with the portable electronic device; and

    providing guide information related to the selected features;

    wherein manipulating the retrieved image comprises applying a transformation matrix to a plurality of nested views of the retrieved image, wherein the transformation matrix approximates a perspective distortion caused by a movement of the camera.

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