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Detecting text using stroke width based text detection

  • US 9,235,759 B2
  • Filed: 11/26/2014
  • Issued: 01/12/2016
  • Est. Priority Date: 05/19/2008
  • Status: Active Grant
First Claim
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1. A method of detecting text using stroke width based text detection, comprising:

  • generating a representation of an image, the representation including pixels that are associated with stroke widths of components of the image;

    identifying connected components of the image by filtering out portions of the pixels, by applying metrics related to stroke width, so as to eliminate portions that are at least unlikely be associated with text; and

    detecting text of the image, based on results of the identifying, by building a multi-nodal graph that is a string of nodes each of which is connected to all other nodes and severing connections between nodes that do not belong to a same line of text.

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