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    Uncertainty Estimation and Visualization for Multi-modal Image Segmentation

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    Date
    2015
    Author
    Al-Taie, Ahmed
    Hahn, Horst K.
    Linsen, Lars
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    Abstract
    Multi-modal imaging allows for the integration of complementary information from multiple medical imaging modalities for an improved analysis. The multiple information channels may lead to a reduction of the uncertainty in the analysis and decision-making process. Recently, efforts have been made to estimate the uncertainty in unimodal image segmentation decisions and visually convey this information to the medical experts that examine the image segmentation results. We propose an approach to extend uncertainty estimation and visualization methods to multi-modal image segmentations. We combine probabilistic uni-modal image segmentation results using the concept of ensemble of classifiers. The uncertainty is computed using a measure that is based on the Kullback- Leibler divergence. We apply our approach for an improved segmentation of Multiple Sclerosis (MS) lesions from multiple MR brain imaging modalities. Moreover, we demonstrate how our approach can be used to estimate and visualize the growth of a brain tumor area for imaging data taken at multiple points in time. Both the MS lesion and the area of tumor growth are detected as areas of high uncertainty due to different characteristics in different imaging modalities and changes over time, respectively.
    BibTeX
    @inproceedings {vcbm.20151205,
    booktitle = {Eurographics Workshop on Visual Computing for Biology and Medicine},
    editor = {Katja Bühler and Lars Linsen and Nigel W. John},
    title = {{Uncertainty Estimation and Visualization for Multi-modal Image Segmentation}},
    author = {Al-Taie, Ahmed and Hahn, Horst K. and Linsen, Lars},
    year = {2015},
    publisher = {The Eurographics Association},
    ISSN = {2070-5786},
    ISBN = {978-3-905674-82-8},
    DOI = {10.2312/vcbm.20151205}
    }
    URI
    http://dx.doi.org/10.2312/vcbm.20151205
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    Eurographics Association copyright © 2013 - 2020 
    Send Feedback | Contact - Imprint | Data Privacy Policy | Disable Google Analytics
    Theme by @mire NV
    System hosted at  Graz University of Technology.
    TUGFhA