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EFFICIENT SIMD IMPLEMENTATION OF 3X3 NON MAXIMA SUPPRESSION OF SPARSE 2D IMAGE FEATURE POINTS

  • US 20200134356A1
  • Filed: 12/30/2019
  • Published: 04/30/2020
  • Est. Priority Date: 04/19/2016
  • Status: Active Grant
First Claim
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1. A method comprising:

  • scanning, in a first direction, a list of feature points of an image, wherein each feature point corresponds to a pixel of the image and the scanning in the first direction includes comparing, for each feature point of the list, a property of the feature point to a corresponding property of each of a first set of feature points;

    scanning, in a second direction, the list of feature points of the image, wherein the scanning in the second direction includes comparing, for each feature point of the list, a property of the feature point to a corresponding property of each of a second set of feature points;

    in response to the scanning in the first direction and the scanning in the second direction, identifying which feature points of the list are to be suppressed; and

    producing a non-maxima suppressed feature point list that includes the feature points from the list other than the feature to be suppressed.

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