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Method Of Handling Complex Variants Of Words Through Prefix-Tree Based Decoding For Devanagiri OCR

  • US 20140023274A1
  • Filed: 03/14/2013
  • Published: 01/23/2014
  • Est. Priority Date: 07/19/2012
  • Status: Active Grant
First Claim
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1. A method to decode text in real world images, the method comprising:

  • receiving an image of a scene of real world captured by a camera of a mobile device, the image comprising one or more text regions;

    detecting in the image, at least one text region comprising a first sequence of characters of a predetermined script in which a predetermined language is expressed;

    selecting a second sequence of characters from a predetermined set of sequences, based on the second sequence of characters matching the first sequence of characters, wherein one or more of the predetermined set of sequences is associated with information on location of one or more modifiers;

    if the second sequence is associated with the information, analyzing the image to determine whether at least one pixel satisfies a predetermined test associated with said information;

    adding a modifier to a specific character in a copy of the second sequence of characters, when the predetermined test is satisfied; and

    identifying said first sequence of characters detected in said text region, as a word in the predetermined language comprising the copy of said second sequence of characters with the modifier;

    wherein one or more of the receiving, the detecting, the selecting, the analyzing, the adding, and the identifying are performed by at least one processor coupled to a memory.

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