Efficient rendering of panoramic images, and applications thereof

  • US 7,843,451 B2
  • Filed: 05/25/2007
  • Issued: 11/30/2010
  • Est. Priority Date: 05/25/2007
  • Status: Active Grant
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First Claim
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1. A method for rendering a surface, comprising:

  • in advance of a user input to view an image rendered to the surface;

    (a) pre-computing a region on the surface defined by a first transformation from a viewport to the surface;

    (b) pre-computing a second transformation that maps from the region to the viewport;

    in response to the user input to view the image rendered to the surface;

    (c) determining, according to the user input, a portion of an image, the portion intersecting with the region;

    (d) applying the second transformation to the portion of the image which intersects with the region to obtain a transformed image; and

    (e) rendering the transformed image in the viewport for display,wherein each of the steps (a)-(e) are executed on at least one computing device.

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