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Multiscale three-dimensional navigation

  • US 8,665,259 B2
  • Filed: 04/16/2009
  • Issued: 03/04/2014
  • Est. Priority Date: 04/16/2009
  • Status: Active Grant
First Claim
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1. A computer-implemented method for providing a multiscale three-dimensional (3D) navigation environment, the method comprising:

  • obtaining a set of distance values indicating distances between a camera and at least one closest fragment associated with one or more geometric objects in a 3D scene environment;

    replacing a geometric object in the 3D scene environment with a proxy object that has a lower resolution than the geometric object;

    generating a depth map that stores the set of distance values based on the proxy object;

    computing a scale for the 3D scene environment based on the set of distance values, wherein the scale indicates a relationship between a control unit of the 3D scene environment and a display unit of a rendered frame;

    rendering the 3D scene environment as viewed from the camera to produce a rendered frame; and

    storing the rendered frame in a memory or displaying the rendered frame on a display device.

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