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APPARATUS AND METHOD FOR EXTRACTING TARGET, AND RECORDING MEDIUM STORING PROGRAM FOR PERFORMING THE METHOD

  • US 20130322754A1
  • Filed: 03/12/2013
  • Published: 12/05/2013
  • Est. Priority Date: 05/30/2012
  • Status: Active Grant
First Claim
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1. A method of extracting a target, the method comprising:

  • extracting a background image from an input image;

    modeling brightness values of the input image and the background image based on a Gaussian distribution to generate an input image modeling result and a background image modeling result;

    calculating likelihood ratios for determining whether a pixel in the input image corresponds to a target based on a correlation between the input image modeling result and the background image modeling result and target templates having different sizes;

    determining a location of the target based on the calculated likelihood ratios; and

    outputting the determined location of the target.

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