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    Parallel centerline extraction on the GPU

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    Authors
    Liu, Baoquan
    Telea, Alexandru C.
    Roerdink, Jos B.T.M.
    Clapworthy, Gordon J.
    Williams, David
    Yang, Po
    Dong, Feng
    Codreanu, Valeriu
    Chiarini, Alessandro
    Affiliation
    University of Bedfordshire
    University of Groningen
    Eindhoven University of Technology
    SCS srl, Italy
    Issue Date
    2014-03-12
    Subjects
    centerline
    parallel algorithm
    GPU techniques
    virtual endoscopy
    
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    Abstract
    Centerline extraction is important in a variety of visualization applications including shape analysis, geometry processing, and virtual endoscopy. Centerlines allow accurate measurements of length along winding tubular structures, assist automatic virtual navigation, and provide a path-planning system to control the movement and orientation of a virtual camera. However, efficiently computing centerlines with the desired accuracy has been a major challenge. Existing centerline methods are either not fast enough or not accurate enough for interactive application to complex 3D shapes. Some methods based on distance mapping are accurate, but these are sequential algorithms which have limited performance when running on the CPU. To our knowledge, there is no accurate parallel centerline algorithm that can take advantage of modern many-core parallel computing resources, such as GPUs, to perform automatic centerline extraction from large data volumes at interactive speed and with high accuracy. In this paper, we present a new parallel centerline extraction algorithm suitable for implementation on a GPU to produce highly accurate, 26-connected, one-voxel-thick centerlines at interactive speed. The resulting centerlines are as accurate as those produced by a state-of-the-art sequential CPU method [40], while being computed hundreds of times faster. Applications to fly through path planning and virtual endoscopy are discussed. Experimental results demonstrating centeredness, robustness and efficiency are presented.
    Citation
    Liu, B., Telea, A.C., Roerdink, J.B.T.M., Clapworthy, G.J., Williams, D., Yang, P., Dong, F., Codreanu, V., Chiarini, A., (2014) 'Parallel centerline extraction on the GPU', Computers & Graphics, 41 (6) pp 72-83
    Publisher
    Elsevier
    Journal
    Computers & Graphics
    URI
    http://hdl.handle.net/10547/336985
    DOI
    10.1016/j.cag.2014.02.003
    Additional Links
    http://linkinghub.elsevier.com/retrieve/pii/S0097849314000272
    Type
    Article
    Language
    en
    ISSN
    0097-8493
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.cag.2014.02.003
    Scopus Count
    Collections
    Centre for Computer Graphics and Visualisation (CCGV)

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