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APPARATUS AND METHOD OF RECOGNIZING IMAGE FEATURE PIXEL POINT

  • US 20090169107A1
  • Filed: 08/19/2008
  • Published: 07/02/2009
  • Est. Priority Date: 12/31/2007
  • Status: Active Grant
First Claim
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1. A method of recognizing image feature pixels, comprising:

  • receiving an image having a plurality of pixels;

    subsequent filtering the pixels at least once by detecting edge pixels of an object in the image based on pixel values of the pixels, so as to obtain a plurality of candidate pixels; and

    performing difference of Gaussian (DOG) blurring operations on the candidate pixels to find the candidate pixels having a relative extreme value as a plurality of feature pixels.

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