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    Partial 3D Object Retrieval combining Local Shape Descriptors with Global Fisher Vectors

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    Date
    2015
    Author
    Savelonas, Michalis A.
    Pratikakis, Ioannis
    Sfikas, Konstantinos
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    Abstract
    This work introduces a partial 3D object retrieval method, applicable on both meshes and point clouds, which is based on a hybrid shape matching scheme combining local shape descriptors with global Fisher vectors. The differential fast point feature histogram (dFPFH) is defined so as to extend the well-known FPFH descriptor in order to capture local geometry transitions. Local shape similarity is quantified by averaging the minimum weighted distances associated with pairs of dFPFH values calculated on the partial query and the target object. Global shape similarity is derived by means of a weighted distance of Fisher vectors. Local and global distances are derived for multiple scales and are being combined to obtain a ranked list of the most similar complete 3D objects. Experiments on the large-scale benchmark dataset for partial object retrieval of the shape retrieval contest (SHREC) 2013, as well as on the publicly available Hampson pottery dataset, support improved performance of the proposed method against seven recently evaluated retrieval methods.
    BibTeX
    @inproceedings {3dor.20151051,
    booktitle = {Eurographics Workshop on 3D Object Retrieval},
    editor = {I. Pratikakis and M. Spagnuolo and T. Theoharis and L. Van Gool and R. Veltkamp},
    title = {{Partial 3D Object Retrieval combining Local Shape Descriptors with Global Fisher Vectors}},
    author = {Savelonas, Michalis A. and Pratikakis, Ioannis and Sfikas, Konstantinos},
    year = {2015},
    publisher = {The Eurographics Association},
    DOI = {10.2312/3dor.20151051}
    }
    URI
    http://dx.doi.org/10.2312/3dor.20151051
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    Eurographics Association copyright © 2013 - 2020 
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    Theme by @mire NV
    System hosted at  Graz University of Technology.
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