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Data indexing and compression

  • US 8,073,824 B2
  • Filed: 07/22/2008
  • Issued: 12/06/2011
  • Est. Priority Date: 06/04/2007
  • Status: Expired due to Fees
First Claim
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1. A method of indexing multidimensional data including:

  • obtaining a data set describing features defined over at least one dimension other than time;

    obtaining index data comprising at least one value corresponding to the at least one non-time dimension;

    compressing the data set;

    storing the compressed data set;

    associating the index data with the compressed data set such that the compressed data set is identifiable by the index data;

    generating mapping data describing a relationship between a first said compressed data set and a second said compressed data set; and

    analysing the mapping data to identify differences between the first and second data sets,wherein the mapping data is in the form of a motion vector describing a change between the first data set and the second data set in terms of at least one of the dimensions over which the data sets are defined.

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