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GLOBAL LOCALIZATION BY FAST IMAGE MATCHING

  • US 20090016614A1
  • Filed: 09/16/2008
  • Published: 01/15/2009
  • Est. Priority Date: 01/07/2004
  • Status: Active Grant
First Claim
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1. A method of determining a portion of a document corresponding to a captured image, comprising:

  • receiving a captured image of a portion of a document, wherein the document has a pattern that uniquely identifies different positions in the document and wherein the portion of the pattern in the captured image is at least partially obscured;

    determining obscured areas of the document in which the pattern is at least partially obscured;

    comparing the captured image with determined obscured areas of the document; and

    identifying the position of the portion of the document corresponding to the captured image.

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