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Method, apparatus, and computer program product for object tracking

  • US 8,818,024 B2
  • Filed: 03/12/2009
  • Issued: 08/26/2014
  • Est. Priority Date: 03/12/2009
  • Status: Active Grant
First Claim
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1. A method comprising:

  • identifying a first interest point;

    receiving a first video frame;

    defining a neighborhood for the first interest point;

    detecting, via a processor, a second interest point in the neighborhood of the first video frame using a scale space image pyramid, the neighborhood being a portion of the scale space image pyramid;

    matching the second interest point with the first interest point;

    determining a motion estimation based on the matched interest points;

    generating a feature descriptor based at least on the second interest point;

    identifying a type of an object associated with the feature descriptor;

    augmenting the first video frame to include a label identifying the type of the object, the label being positioned within the first video frame based on the matched interest points;

    tracking the object in a subsequent video frame and within the neighborhood without recalculating the feature descriptor for the subsequent video frame; and

    augmenting the subsequent video frame such that the position of the label is updated with respect to the first video frame.

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