Patents Assigned to Spatial Data Technologies, Inc.
  • System and method for caching and rendering images
    Patent number: 6873329
    Abstract: A system and method for caching and rendering an image database enables predictive loading of unrequested portions of the image. A raw image is preprocessed and subdivided into tiles. As a portion of a raw image is displayed on a screen and the user zooms and pans the image, a predicting algorithm determines which additional tiles should be loaded into cache so that the user suffers no lag time as additional tiles not in cache are loaded. The present system and method is adaptable to both raster and vector images.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: March 29, 2005
    Assignee: Spatial Data Technologies, Inc.
    Inventors: Andrew Cohen, Scott Crouch