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Content-driven surveillance image storage optimization apparatus and method of operation

  • US 10,412,420 B2
  • Filed: 10/29/2016
  • Issued: 09/10/2019
  • Est. Priority Date: 03/07/2014
  • Status: Active Grant
First Claim
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1. A content-driven surveillance storage optimization apparatus comprising:

  • a purging circuit;

    a surveillance image transformation circuit;

    a surveillance image store communicatively coupled to the purging circuit and to the surveillance image transformation circuit;

    a retention meta data store communicatively coupled to the purging circuit and to the surveillance image transformation circuit; and

    a triggers, inhibitors, policies controller communicatively coupled to the purging circuit, whereby transformed content of the surveillance images provides retention meta data to be used by the purging circuit when activated by the controller to select images for deletionwherein the surveillance image transformation circuit comprises;

    an image frame receiver which receives JPEG compatible files from a plurality of network attached security surveillance cameras;

    the image frame receiver is coupled toa subsequent frame store;

    the subsequent frame store coupled toa Huffman decoder;

    a plurality of coefficient stores coupled to the Huffman decoder;

    coupled toa coefficient differencer circuit which subtracts the coefficients of the subsequent frame from the coefficients of the key frame;

    the coefficient differencer is coupled toa DC level trigger which determines a condition that at least one block of the image have substantially changed and upon such determination records a metric into said retention meta data store.

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