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Information Retrieval Using Invisible Junctions and Geometric Constraints

  • US 20090016564A1
  • Filed: 07/11/2007
  • Published: 01/15/2009
  • Est. Priority Date: 07/11/2007
  • Status: Active Grant
First Claim
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1. A method for retrieving an electronic document using invisible junction features, the method comprising:

  • receiving an image of an input electronic document;

    extracting an invisible junction feature descriptor from the image; and

    retrieving information for an output electronic document using the invisible junction feature descriptor and a geometric constraint.

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