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Apparatus and method for detecting key point using high-order laplacian of gaussian (LoG) kernel

  • US 9,842,273 B2
  • Filed: 03/09/2016
  • Issued: 12/12/2017
  • Est. Priority Date: 03/09/2015
  • Status: Expired due to Fees
First Claim
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1. A method of detecting a key point of an image, the method comprising:

  • calculating a high-order Laplacian of Gaussian (LoG) operator by sequentially differentiating an LoG operator with respect to x and v of an image;

    generating the high-order LoG kernel based on the high-order LoG operator;

    generating a scale space based on the high-order LoG kernel; and

    detecting the key point by comparing a current pixel in the scale space to pixels adjacent to the current pixel,wherein the high-order LoG kernel is a mask for performing a convolution on a function using the high-order LoG operator.

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