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Scalable near duplicate image search with geometric constraints

  • US 8,254,697 B2
  • Filed: 02/02/2009
  • Issued: 08/28/2012
  • Est. Priority Date: 02/02/2009
  • Status: Active Grant
First Claim
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1. A method of processing an image to enable indexing and comparison of the image against other similarly processed images, the method comprising the steps of:

  • (a) identifying local regions of interest within the image by a first feature detection scheme, where by the first feature detection scheme comprises the step of identifying local regions of interest within the image by (MSER) maximally stable extremal regions;

    (b) identifying local points of interest within the image by a second feature detection scheme;

    (c) defining bundled features by grouping together the local points of interest that occur within a given local region of interest; and

    (d) comparing bundled features of a first image to bundled features of a second image to determine if the first and second images are at least partial matches of each other.

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