Segmentation of 3D gbjects from MRI volume data using constrained elastic deformations of flexible fourier surface models

G. Székely, A. Kelemen, Ch Brechbühler, G. Gerig

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This paper describes a new model-based segmentation technique combining desirable properties of physical models (snakes, [2]), shape representation by Fourier parametrization (Fourier snakes, [12]), and modelling of natural shape variability (eigenmodes, [7, 10]). Flexible shape models are represented by a parameter vector describing the mean contour and by a set of eigenmodes of the parameters characterizing the shape variation with rcspect to a small sct of stable landmarks (ACPC in our application) and explaining the remaining variability among a series of images with the model flexibility. Although straightforward, the extension to 3-D is severely impeded by finding a proper surface parametrization for arbitrary objects with spherical topology. We apply a newly developed surface parametrization [16, 17] which achieves a uniform mapping between object surface and parameter space. The 3D model building and Fourier-snake procedure are demonstrated by segmenting deep structures of the human brain from MR volume data.

    Original languageEnglish (US)
    Title of host publicationComputer Vision, Virtual Reality and Robotics in Medicine - 1st International Conference, CVRMed 1995, Proceedings
    EditorsNicholas Ayache
    PublisherSpringer Verlag
    Pages495-505
    Number of pages11
    ISBN (Print)9783540591207
    DOIs
    StatePublished - 1995
    Event1st International Conference on Computer Vision, Virtual Reality, and Robotics in Medicine, CVRMed 1995 - Nice, France
    Duration: Apr 3 1995Apr 6 1995

    Publication series

    NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
    Volume905
    ISSN (Print)0302-9743
    ISSN (Electronic)1611-3349

    Other

    Other1st International Conference on Computer Vision, Virtual Reality, and Robotics in Medicine, CVRMed 1995
    CountryFrance
    CityNice
    Period4/3/954/6/95

    ASJC Scopus subject areas

    • Theoretical Computer Science
    • Computer Science(all)

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