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Method and apparatus for detecting objects in an image

  • US 8,433,133 B2
  • Filed: 12/12/2011
  • Issued: 04/30/2013
  • Est. Priority Date: 01/12/2007
  • Status: Active Grant
First Claim
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1. A method of estimating background color in an image comprising:

  • providing a computing device to implement to following steps;

    accessing said image, wherein said image is comprised of a plurality of rows of pixels, each pixel having a color defined by a color vector comprised of multiple color values, each row of pixels within the image defining a scan line of the image;

    segmenting each scan line of the image into like-color line segments, wherein the colors of the pixels within each respective like-color line segment have a normal distribution about a mean color of the respective like-color line segment, and the standard deviation of the colors within each like-color line segment is smaller than a difference between its mean color and the mean color of its adjacent like-color line segment;

    grouping the like-color line segments by color; and

    estimating the background color on the basis of edge pixels along the line segments of said groups.

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