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Authors: Andrey Zimovnov and Leonid Mestetskiy

Affiliation: Moscow State University, Russian Federation

Keyword(s): Curve-skeleton, Visual Hull, Medial Axis, Shape Descriptor, Mean-shift.

Related Ontology Subjects/Areas/Topics: Applications ; Computer Vision, Visualization and Computer Graphics ; Features Extraction ; Geometry and Modeling ; Image and Video Analysis ; Image-Based Modeling ; Pattern Recognition ; Shape Representation and Matching ; Software Engineering

Abstract: We present a new algorithm of curve-skeleton extraction from a wide variety of objects. The algorithm uses visuall hull object approximation, which gives us an ability to work with the model in its silhouettes domain. We propose an efficient algorithm for 3D distance transform computation for the inner voxels of visual hull. Using that 3D distance transform we backproject continuous medial axes of visual hull silhouettes that form a first approximation for a curve-skeleton. Then we use a set of filtering techniques to denoise that point cloud to form a thinner approximation. We believe that a resulting approximation is usefull in its own. The described method shows a great improvement in computational time comparing to existing ones. The method shows good extraction results for models with complex geometry and topology. Resulting curve-skeletons conform with most requirements to universal curve-skeletons.

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Paper citation in several formats:
Zimovnov, A. and Mestetskiy, L. (2015). Curve-skeleton Extraction from Visual Hull. In Proceedings of the 10th International Conference on Computer Vision Theory and Applications (VISIGRAPP 2015) - Volume 2: VISAPP; ISBN 978-989-758-089-5; ISSN 2184-4321, SciTePress, pages 666-671. DOI: 10.5220/0005359806660671

@conference{visapp15,
author={Andrey Zimovnov. and Leonid Mestetskiy.},
title={Curve-skeleton Extraction from Visual Hull},
booktitle={Proceedings of the 10th International Conference on Computer Vision Theory and Applications (VISIGRAPP 2015) - Volume 2: VISAPP},
year={2015},
pages={666-671},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005359806660671},
isbn={978-989-758-089-5},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the 10th International Conference on Computer Vision Theory and Applications (VISIGRAPP 2015) - Volume 2: VISAPP
TI - Curve-skeleton Extraction from Visual Hull
SN - 978-989-758-089-5
IS - 2184-4321
AU - Zimovnov, A.
AU - Mestetskiy, L.
PY - 2015
SP - 666
EP - 671
DO - 10.5220/0005359806660671
PB - SciTePress

- Science and Technology Publications, Lda.
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