×

ORDINAL AND SPATIAL LOCAL FEATURE VECTOR BASED IMAGE REPRESENTATION

  • US 20120093408A1
  • Filed: 10/18/2010
  • Published: 04/19/2012
  • Est. Priority Date: 10/18/2010
  • Status: Active Grant
First Claim
Patent Images

1. A method, comprising,for each of multiple local image patches identified in an image comprising image forming elements:

  • dividing the local image patch into respective sub-patches of respective ones of the image forming elements;

    for each of the respective image forming elements in the local image patch,determining a respective ordinal rank of the image forming element, wherein each ordinal rank corresponds to a respective dimension of an ordinal rank feature space, andascertaining respective contributions of the image forming element to a particular one of the respective sub-patches containing the image forming element and to one or more other ones of the respective sub-patches neighboring the particular sub-patch;

    for each of the respective sub-patches of the local image patch, building a respective histogram of ascertained contributions of the image forming elements in the ordinal rank feature space; and

    generating a respective feature vector representing the local image patch from the respective histograms built for the sub-patches of the local image;

    wherein the dividing, the determining, the ascertaining, the building, and the generating are performed by a processor.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×