Patent ID: 8612491
Filing Date: 2013-12-17
Classification: G06F,G06T,G09B

Abstract:
1. A method for storing a dataset of image tiles comprises the steps of: (a) determining a number of zoom levels; (b) accessing a plurality of cluster files including two top cluster files, the two top cluster files including a first subset of the zoom levels; (c) accessing the image tiles, each of the image tiles having a tile zoom level and a tile location; (d) for each of the image tiles, computing a cluster name based on the tile zoom level and the location; (e) for each of the image tiles, if a selected cluster file from the plurality of cluster files has a name that matches the computed cluster name, (f) for each of the image tiles, if a selected cluster file from the plurality of cluster files has a name that does not match the computed cluster name,