Sending three-dimensional images over a network

  • US 8,237,713 B2
  • Filed: 05/27/2009
  • Issued: 08/07/2012
  • Est. Priority Date: 02/26/1999
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of transferring over a network a representation of a three-dimensional surface, wherein the physical features of a portion of the surface are represented by data arranged according to a hierarchical structure at a plurality of resolution levels comprising:

  • retrieving locally stored data corresponding to the portion of the three-dimensional surface from a local memory and determining whether the stored data is at a resolution level lower than a calculated resolution level, and repetitively requesting remotely stored data over a network until said data meets or exceeds said calculated resolution level;

    wherein at least some of said locally stored data and some of said remotely stored data contains elevation information.

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