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Method and apparatus for automatic identification of linear objects in an image

  • US 7,672,484 B2
  • Filed: 03/10/2008
  • Issued: 03/02/2010
  • Est. Priority Date: 07/18/2003
  • Status: Expired due to Fees
First Claim
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1. A method of identifying linear objects in an image comprising:

  • receiving a first image with a first resolution, the first image containing data representing physical linear objects;

    generating a filtered image from the first image, the filtered image identifying potential objects which have a smaller radius than the size of a filter and a different brightness than pixels surrounding the potential objects;

    receiving a second image identifying regions in the first image with the first resolution which are not to be processed;

    generating a third image by removing regions in the filtered image which are identified in the second image as regions in the first image which are not to be processed;

    identifying lines in the third image;

    generating a fourth image by removing lines identified in the third image which do not meet predetermined criteria; and

    identifying linear objects in the first image using the remaining lines in the fourth image.

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