VMV16

Permanent URI for this collection

https://diglib.eg.org/handle/10.2312/2630932

Browse

Browsing VMV16 by Subject "Computational Geometry and Object Modeling"

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Geodesic Iso-Curve Signature
    (The Eurographics Association, 2016) Gehre, Anne; Bommes, David; Kobbelt, Leif; Matthias Hullin and Marc Stamminger and Tino Weinkauf
    During the last decade a set of surface descriptors have been presented describing local surface features. Recent approaches [COO15] have shown that augmenting local descriptors with topological information improves the correspondence and segmentation quality. In this paper we build upon the work of Tevs et al. [TBW 11] and Sun and Abidi [SA01] by presenting a surface descriptor which captures both local surface properties and topological features of 3D objects. We present experiments on shape repositories that are provided with ground-truth correspondences (FAUST, SCAPE, TOSCA) which show that this descriptor outperforms current local surface descriptors.
  • Thumbnail Image
    Item
    Structuring 3D Medial Skeletons: A Comparative Study
    (The Eurographics Association, 2016) Delame, Thomas; Kustra, Jacek; Telea, Alexandru C.; Matthias Hullin and Marc Stamminger and Tino Weinkauf
    Medial skeletons provide an effective alternative to boundary or volumetric representations for applications that focus on shape structure. This capability is provided by the skeletal structure, i.e., the curves and surfaces computed from centers of maximally inscribed balls by a process called structuration. Many several structuration methods exist, all having various challenges in terms of delivering a high-quality medial skeleton. This paper provides a first overview of existing structuration methods. We formally define the skeletal structure by giving its theoretical properties, and use these properties to propose quality criteria for structurations. We next review existing structuration methods and compare them using the established criteria. The obtained insights help both practitioners in choosing a suitable structuration method and researchers in further perfecting such methods.