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    A PDE-based head visualization method with CT data

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    Publication date
    2015
    Author
    Chen, C.
    Sheng, Y.
    Li, F.
    Zhang, G.
    Ugail, Hassan
    Keyword
    Head visualization; Partial differential equation (PDE) method; Computed tomography (CT)
    Peer-Reviewed
    yes
    
    Metadata
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    Abstract
    In this paper, we extend the use of the partial differential equation (PDE) method to head visualization with computed tomography (CT) data and show how the two primary medical visualization means, surface reconstruction, and volume rendering can be integrated into one single framework through PDEs. Our scheme first performs head segmentation from CT slices using a variational approach, the output of which can be readily used for extraction of a small set of PDE boundary conditions. With the extracted boundary conditions, head surface reconstruction is then executed. Because only a few slices are used, our method can perform head surface reconstruction more efficiently in both computational time and storage cost than the widely used marching cubes algorithm. By elaborately introducing a third parameter w to the PDE method, a solid head can be created, based on which the head volume is subsequently rendered with 3D texture mapping. Instead of designing a transfer function, we associate the alpha value of texels of the 3D texture with the PDE parameter w through a linear transform. This association enables the production of a visually translucent head volume. The experimental results demonstrate the feasibility of the developed head visualization method.
    URI
    http://hdl.handle.net/10454/11233
    Version
    No full-text in the repository
    Citation
    Chen C, Sheng Y, Li F, Zhang G and Ugail H (2015) A PDE-based Head Visualization Method with CT Data. Computer Animation and Virtual Worlds. DOI: 10.1002/cav.1683. In Press.
    Link to publisher’s version
    http://dx.doi.org/10.1002/cav.1683
    Type
    Article
    Collections
    Engineering and Informatics Publications

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