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Occlusion-robust visual object fingerprinting using fusion of multiple sub-region signatures

  • US 9,483,839 B1
  • Filed: 05/06/2015
  • Issued: 11/01/2016
  • Est. Priority Date: 05/06/2015
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving an indication of an object within a sequence of video frames;

    selecting, from the sequence of video frames, a reference image frame indicative of the object and candidate image frames representative of possible portions of the object;

    dividing the reference image frame and the candidate image frames into multiple cells;

    defining, for the reference image frame and the candidate image frames, a plurality of sub-regions of the multiple cells, wherein one or more of the sub-regions include the same cells for overlapping representations and wherein the plurality of sub-regions include multiple sizes;

    comparing characteristics of the plurality of sub-regions of the reference image frame to characteristics of the plurality of sub-regions of the candidate image frames and determining similarity measurements; and

    based on the similarity measurements, tracking the object within the sequence of video frames.

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