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International Conference on Shape Modeling and Applications 2005 (SMI' 05)

Date 13-17 June 2005

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Displaying Results 1 - 25 of 52
  • International Conference on Shape Modeling and Applications [Front cover]

    Publication Year: 2005, Page(s): c1
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  • Proceedings: International Conference on Shape Modeling and Applications - SMI'05 [front matter]

    Publication Year: 2005, Page(s):i - iv
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  • Table of Contents: International Conference on Shape Modeling and Applications - SMI 2005

    Publication Year: 2005, Page(s):v - viii
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  • Preface

    Publication Year: 2005, Page(s): ix
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  • Conference Committee

    Publication Year: 2005, Page(s): x
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  • Program Committee

    Publication Year: 2005, Page(s): xi
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  • External reviewers

    Publication Year: 2005, Page(s): xii
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  • What's in a Mesh? A Survey of 3D Mesh Representation Schemes

    Publication Year: 2005, Page(s): 2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (31 KB)

    Geometric meshes consist of a set of points in 3D space connected in a (typically manifold) graph structure. As such a vector of 3n real values may represent them, where n is the number of vertices in the mesh. Unfortunately, although straightforward, this is not a very useful representation of the mesh, as it is difficult to naturally manipulate the mesh data using this representation. A better r... View full abstract»

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  • Reconstructing B-spline Curves from Point Clouds--A Tangential Flow Approach Using Least Squares Minimization

    Publication Year: 2005, Page(s):4 - 12
    Cited by:  Papers (2)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (233 KB) | HTML iconHTML

    We present a novel algorithm based on least-squares minimization to approximate point cloud data in 2D plane with a smooth B-spline curve. The point cloud data may represent an open curve with self intersection and sharp corner. Unlike other existing methods, such as the moving least-squares method and the principle curve method, our algorithm does not need a thinning process. The idea of our algo... View full abstract»

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  • Smooth adaptive fitting of 3D models using hierarchical triangular splines

    Publication Year: 2005, Page(s):13 - 22
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1176 KB) | HTML iconHTML

    The recent ability to measure quickly and inexpensively dense sets of points on physical objects has deeply influenced the way engineers represent shapes in CAD systems, animation software or in the game industry. Many researchers advocated to completely bypass smooth surface representations, and to stick to a dense mesh model throughout the design process. Yet smooth analytic representations are ... View full abstract»

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  • Visualization of point-based surfaces with locally reconstructed subdivision surfaces

    Publication Year: 2005, Page(s):23 - 32
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (928 KB) | HTML iconHTML

    Point-based surfaces (i.e. surfaces represented by discrete point sets which are either directly obtained by current 3D acquisition devices or converted from other surface representations) are well designed for multiresolution storage and transmission of complex objects. Unfortunately, visualization of point-based surfaces requires to develop specific rendering techniques (e.g. splatting) as point... View full abstract»

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  • Convection-driven dynamic surface reconstruction

    Publication Year: 2005, Page(s):33 - 42
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1048 KB) | HTML iconHTML

    In this paper, we introduce a flexible framework for the reconstruction of a surface from an unorganized point set, extending the geometric convection approach introduced by Chaine. Given a dense input point cloud, we first extract a triangulated surface that interpolates a subset of the initial data. We compute this surface in an output sensitive manner by decimating the input point set on-the-fl... View full abstract»

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  • Remeshing Schemes for semi-regular tilings

    Publication Year: 2005, Page(s):44 - 50
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1376 KB) | HTML iconHTML

    Most frequently used subdivision schemes such as Catmull-Clark create regular regions after several applications. This paper shows that all semi-regular regions can be created by subdivision schemes and each semi-regular region type can be created with one application of a particular subdivision scheme to a particular regular region. Using this property of subdivision schemes it is easy to cover a... View full abstract»

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  • An accurate error measure for adaptive subdivision surfaces

    Publication Year: 2005, Page(s):51 - 56
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB) | HTML iconHTML

    A tight estimate on the maximum distance between a subdivision surface and its linear approximation is introduced to guide adaptive subdivision with guaranteed accuracy. View full abstract»

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  • Designing with distance fields

    Publication Year: 2005, Page(s):58 - 59
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (920 KB) | HTML iconHTML

    Creating 3D computer models is a difficult, time consuming task. Existing systems capable of providing detailed, expressive models of sufficient quality for Hollywood or CAD can be labor intensive and complex, thus limiting creativity and the availability of good 3D models. During the past few years, several systems have been presented that address some of these limitations by using distance field... View full abstract»

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  • Mesh editing with an embedded network of curves

    Publication Year: 2005, Page(s):62 - 71
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1632 KB) | HTML iconHTML

    We propose a new topological data structure for representing a set of polygonal curves embedded in a meshed surface. In this embedding, the vertices of the curve do not necessarily correspond to the vertices of the surface. The partition of the surface yielded by the intersecting curves is efficiently represented as a "cut-graph". The cut-graph stores combinatorial information of the network of cu... View full abstract»

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  • Minimal-cut model composition

    Publication Year: 2005, Page(s):72 - 81
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1872 KB) | HTML iconHTML

    Constructing new, complex models is often done by reusing parts of existing models, typically by applying a sequence of segmentation, alignment and composition operations. Segmentation, either manual or automatic, is rarely adequate for this task, since it is applied to each model independently, leaving it to the user to trim the models and determine where to connect them. In this paper we propose... View full abstract»

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  • Rational spherical splines for genus zero shape modeling

    Publication Year: 2005, Page(s):82 - 91
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2808 KB) | HTML iconHTML

    Traditional approaches for modeling a closed manifold surface with either regular tensor-product or triangular splines (defined over an open planar domain) require decomposing the acquired geometric data into a group of charts, mapping each chart to a planar parametric domain, fitting an open surface patch of certain degree to each chart, and finally, trimming the patches (if necessary) and stitch... View full abstract»

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  • Anisotropic meshing of implicit surfaces

    Publication Year: 2005, Page(s):94 - 103
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1264 KB) | HTML iconHTML

    This paper proposes a new grid-based method for adaptive anisotropic meshing of implicit surfaces. Grid-based methods are considered the major technique for implicit surface meshing, mainly due to their efficiency and simplicity. However, these methods suffer from a number of inherent drawbacks, resulting from the fact that the imposed Cartesian grid is generally not well adapted to the iso-surfac... View full abstract»

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  • Interactive implicit modeling with hierarchical spatial caching

    Publication Year: 2005, Page(s):104 - 113
    Cited by:  Papers (6)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (928 KB) | HTML iconHTML

    Complex implicit CSG models can be represented hierarchically as a tree of nodes (the BlobTree) . However, current methods cannot be used to visualize changes made to these models at interactive rates due to the large number of potential field evaluations required. A hierarchical spatial caching technique is presented which accelerates evaluations of the potential function. This method introduces ... View full abstract»

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  • A programmable particle system framework for shape modeling

    Publication Year: 2005, Page(s):114 - 123
    Cited by:  Papers (11)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB) | HTML iconHTML

    Particle systems are an effective tool for visualizing information in a variety of contexts. This paper focuses on the use of surface-constrained particles to visualize information about the surface. We have designed a particle system programming framework consisting of behaviors, attributes and shaders that allows users to rapidly create, debug, and deploy particle systems for sensing and extract... View full abstract»

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  • Robust particle systems for curvature dependent sampling of implicit surfaces

    Publication Year: 2005, Page(s):124 - 133
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1200 KB) | HTML iconHTML

    Recent research on point-based surface representations suggests that point sets may be a viable alternative to parametric surface representations in applications where the topological constraints of a parameterization are unwieldy or inefficient. Particle systems offer a mechanism for controlling point samples and distributing them according to needs of the application. Furthermore, particle syste... View full abstract»

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  • Subdomain aware contour trees and contour evolution in time-dependent scalar fields

    Publication Year: 2005, Page(s):136 - 144
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1168 KB) | HTML iconHTML

    For time-dependent scalar fields, one is often interested in topology changes of contours in time. In this paper, we focus on describing how contours split and merge over a certain time interval. Rather than attempting to describe all individual contour splitting and merging events, we focus on the simpler and therefore more tractable in practice problem: describing and querying the cumulative eff... View full abstract»

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  • Design and manipulation of polygonal models in a haptic, stereoscopic virtual environment

    Publication Year: 2005, Page(s):145 - 154
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1080 KB) | HTML iconHTML

    This paper presents a flexible, scalable framework for interactive hands-on shape design in a haptic, stereoscopic virtual environment. The framework is founded upon the concept of PDE-based geometric surface flow. Given an input polygonal mesh, a user can interactively define implicit functions around regions of interest of the mesh model, and the locally or globally affected regions of the model... View full abstract»

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  • Predicting AE attenuation in structures by geometric analysis

    Publication Year: 2005, Page(s):155 - 162
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (912 KB) | HTML iconHTML

    This paper investigates the feasibility of predicting the attenuation of AE signals travelling within a complex solid body. Such AE can occur due to external stimulation (e.g. impact) or internal events (i.e. crack propagation). The attenuation of these signals is affected not only by material properties but also by the geometry of the object. For example, wave propagation on a typical engine bloc... View full abstract»

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