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Network surveillance system

  • US 8,396,250 B2
  • Filed: 11/20/2007
  • Issued: 03/12/2013
  • Est. Priority Date: 11/20/2006
  • Status: Active Grant
First Claim
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1. A method for estimating the activity topology of a set of sensed data windows, each of the sensed data windows related to a corresponding sensed region, the method including the steps:

  • determining a subset of sensed data windows that are not connected by comparing sensed data windows pair wise from the set of sensed data windows, the pair wise comparison including determining whether a pair of sensed data windows does not have overlapping sensed regions by;

    determining a first occupancy measure for a first sensed data window and a second occupancy measure for a second sensed data window, the first and second sensed data windows comprising the pair of sensed data windows, andcomparing the first and second occupancy measures by forming an occupancy vector corresponding to a first sensed data window sequence associated with the first sensed data window and a second occupancy vector corresponding to a second sensed data window sequence associated with the second sensed data window and comparing corresponding elements of the first and second occupancy vectors; and

    excluding the subset of sensed data windows from the set of sensed data windows.

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