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Heat diffusion based detection of structures of interest in medical images

  • US 7,729,739 B2
  • Filed: 11/29/2004
  • Issued: 06/01/2010
  • Est. Priority Date: 12/03/2003
  • Status: Expired due to Fees
First Claim
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1. A computer-implemented method operable on a computer for detecting and identifying structures of interest in computed tomographic (CT) volumetric images, comprising the steps of:

  • (a) obtaining a heat diffusion field of a volume of interest with structures from a CT volumetric image available on said computer by applying a heat diffusion scheme to said volume of interest with structures;

    (b) mapping said obtained heat diffusion field to a vector field of said structures; and

    (c) identifying a structure of interest from said structures using a geometrical analysis of said vector field of said structures, wherein said geometrical analysis comprises computing a spherical symmetry parameter from said mapped vector field of said structure of interest, and wherein said identifying comprises performing a local analysis of the area around said structure of interest and computing a triangulization parameter of said area, whereby both said spherical symmetry parameter and said triangulization parameter are used for the identification of said structure of interest.

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