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Method and apparatus for segmenting images using constant-time deformable contours

  • US 6,031,935 A
  • Filed: 02/12/1998
  • Issued: 02/29/2000
  • Est. Priority Date: 02/12/1998
  • Status: Expired due to Fees
First Claim
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1. A method of segmenting a set of images comprising the steps of:

  • a) providing a set of search images, each search image containing a view of a target object;

    b) providing a priori domain knowledge corresponding to the set of search images;

    c) selecting a training image from the set of search images;

    d) obtaining at least one training contour from the selected training image, the training contour representing an outline of the target object in the selected training image;

    e) utilizing the selected training contour to extract training information corresponding to the target object in the selected training image;

    f) associating the training contour with a selected search image of the set of images, the training contour defining a search contour;

    g) deforming the search contour relative to the selected search image and maintaining predetermined information corresponding to the deformed search contour;

    h) utilizing the training information and the a priori domain knowledge to identify regions of the deformed search contour that correspond within predetermined limits to an outline of the target object in the selected search image; and

    i) repeating steps (c) through (h) for each image in the set of search images so as to segment all of the images in the set of search images.

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