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Generating a combination of a visual query and matching canonical document

  • US 9,176,986 B2
  • Filed: 12/01/2011
  • Issued: 11/03/2015
  • Est. Priority Date: 12/02/2009
  • Status: Active Grant
First Claim
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1. A computer-implemented method of processing a visual query, performed by a server system having one or more processors and memory storing one or more programs for execution by the one or more processors, the method comprising:

  • receiving a visual query from a client system distinct from the server system;

    performing optical character recognition (OCR) on the visual query to produce text recognition data representing textual characters, including a plurality of textual characters in a contiguous region of the visual query;

    scoring each textual character in the plurality of textual characters, wherein the scoring of a respective textual character is based on both an OCR quality score of the respective textual character alone and an OCR quality score of one or more neighboring textual characters;

    identifying, in accordance with the scoring, one or more high quality textual strings, each comprising a plurality of high quality textual characters from among the plurality of textual characters in the contiguous region of the visual query;

    retrieving a canonical document having the one or more high quality textual strings;

    generating a combination of the visual query and at least a portion of the canonical document; and

    sending the combination to the client system.

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