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Method and system for cluster-based video monitoring and event categorization

  • US 9,489,580 B2
  • Filed: 09/24/2015
  • Issued: 11/08/2016
  • Est. Priority Date: 07/07/2014
  • Status: Active Grant
First Claim
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1. A method of categorizing a motion event candidate, comprising:

  • forming one or more clusters comprising respective pluralities of motion vectors, wherein motion vectors of the respective pluralities of motion vectors include respective start locations and end locations of a respective object in motion,the motion vectors corresponding to respective motion event candidates previously detected in a live video stream, andthe one or more clusters being associated with a respective event category and having a respective cluster creation time at which the respective cluster was formed;

    in accordance with a determination that a first cluster of the one or more clusters has included fewer than a threshold number of motion vectors for at least a threshold amount of time since a respective cluster creation time of the first cluster;

    deleting the first cluster including all motion vectors currently in the first cluster; and

    removing the motion event candidates corresponding to the deleted motion vectors from a first event category associated with the first cluster.

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