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Image search using text-based elements within the contents of images

  • US 9,323,784 B2
  • Filed: 12/09/2010
  • Issued: 04/26/2016
  • Est. Priority Date: 12/09/2009
  • Status: Active Grant
First Claim
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1. A method for searching for electronic content, the method comprising:

  • receiving, at a search system, a query image captured from a rendered document;

    extracting, from the query image, (i) one or more textual keywords, and (ii) one or more non-text-based, image features;

    selecting, from among a set of images, one or more result images that have one or more extracted textual keywords that are associated with one or more of the textual keywords that were extracted from the query image;

    after the one or more result images that have one or more extracted textual keywords have been selected, selecting, from the one or more result images, a subset of the one or more result images that have one or more extracted non-text-based, image features that are associated with one or more of the non-text-based, image features that were extracted from the query image; and

    in response to receiving the query image, providing the subset of the one or more result images that have (i) one or more extracted textual keywords that are associated with one or more of the textual keywords that were extracted from the query image, and (ii) one or more extracted non-text-based, image features that are associated with one or more of the non-text-based, image features that were extracted from the query image.

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