Browsing by Title

Now showing items 2636-2655 of 17315

    • A Concise and Provably Informative Multi-Scale Signature Based on Heat Diffusion 

      Sun, Jian; Ovsjanikov, Maks; Guibas, Leonidas (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      We propose a novel point signature based on the properties of the heat diffusion process on a shape. Our signature, called the Heat Kernel Signature (or HKS), is obtained by restricting the well-known heat kernel to the ...

    • A concise b-rep data structure for stratified subanalytic objects 

      Gomes, Abel J.P. (The Eurographics Association, 2003)
      Current geometric kernels suffer from poor abstraction and design of their data structures. In part, this is due to the lack of a general mathematical framework for geometric modelling and processing. As a result, there ...

    • Concise Tour to the Virtual Old Prague 

      Zara, Jiri (Eurographics Association, 2002)
      This paper describes a structure and a user interface of the Internet based 3D presentation of existing historical part of city Prague. The application offers a smooth tour to selected regions of the real city, utilizing ...

    • Concurrent Binary Trees (with application to longest edge bisection) 

      Dupuy, Jonathan (ACM, 2020)
      We introduce the concurrent binary tree (CBT), a novel concurrent representation to build and update arbitrary binary trees in parallel. Fundamentally, our representation consists of a binary heap, i.e., a 1D array, that ...

    • Concurrent Viewing of Multiple Attribute-Specific Subspaces 

      Sisneros, Robert; Johnson, C. Ryan; Huang, Jian (The Eurographics Association and Blackwell Publishing Ltd., 2008)
      In this work we present a point classification algorithm for multi-variate data. Our method is based on the concept of attribute subspaces, which are derived from a set of user specified attribute target values. Our ...

    • Concurrent Volume Visualization of Real-Time fMRI 

      Nguyen, Tan Khoa; Eklund, Anders; Ohlsson, Henrik; Hernell, Frida; Ljung, Patric; Forsell, Camilla; Andersson, Mats; Knutsson, Hans; Ynnerman, Anders (The Eurographics Association, 2010)
      We present a novel approach to interactive and concurrent volume visualization of functional Magnetic Resonance Imaging (fMRI). While the patient is in the scanner, data is extracted in real-time using state-of-the-art ...

    • Condenser-Based Instant Reflectometry 

      Lan, Yanxiang; Dong, Yue; Wang, Jiaping; Tong, Xin; Guo, Baining (The Eurographics Association and Blackwell Publishing Ltd, 2010)
      We present a technique for rapid capture of high quality bidirectional reflection distribution functions(BRDFs) of surface points. Our method represents the BRDF at each point by a generalized microfacet model with tabulated ...

    • A Condition for Isotopic Approximation 

      Chazal, F.; Cohen-Steiner, D. (The Eurographics Association, 2004)
      In this paper, we give a very simple and purely topological condition for two surfaces to be isotopic. This work is motivated by the problem of surface approximation. Applications to implicit surfaces are given, as well ...

    • A Condition Number for Non-Rigid Shape Matching 

      Ovsjanikov, Maks; Huang, Qi-Xing; Guibas, Leonidas (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Despite the large amount of work devoted in recent years to the problem of non-rigid shape matching, practical methods that can successfully be used for arbitrary pairs of shapes remain elusive. In this paper, we study the ...

    • The Cone of Normals Technique for Fast Processing of Curved Patches 

      Shirmun, Leon A.; Abi-Ezzi, Salim S. (Blackwell Science Ltd and the Eurographics Association, 1993)
      The cone of normals technique for curved surface patches allows to perform various quick tests at the patch level such as front- or backfacing test, light influence test, and existence of silhouette edges test. For a given ...

    • A Configurable Design Approach for Virtual Museums 

      Tsita, Christina; Sinanis, Anastasis; Dimitriou, Nikolaos; Papachristou, Kostas; Karageorgopoulou, Anastasia; Drosou, Anastasios; Tzovaras, Dimitrios (The Eurographics Association, 2018)
      Virtual Museums (VM) are widely used to preserve and to disseminate cultural heritage to the audience, due to the existing evidence that they can enhance the interest on cultural heritage content, while reinforcing motivation ...

    • A Configurable LoD for Procedural Urban Models intended for Daylight Simulation 

      Besuievsky, Gonzalo; Barroso, Santiago; Beckers, Benoit; Patow, Gustavo (The Eurographics Association, 2014)
      In many applications, such as in massive urban models visualization or in the study of the impact of urban simulation at different scales, models with different levels of detail are required. In this paper we propose a ...

    • Configurable Representations in Feature-based Modelling 

      Falcidieno, B.; Giannini, F.; Porzia, C.; Spagnuolo, M. (Eurographics Association, 1991)
      A double description is proposed for the representation of a feature-based model which supports the distinction between form and functionality. This description consists of a primary representation in terms of geometric ...

    • Configuration Finder: A Tidy Visual Interface for Effective Faceted Search 

      Riehmann, Patrick; Schädler, Andreas; Harder, Jannis; Herpel, Jakob; Froehlich, Bernd (The Eurographics Association, 2020)
      We present an interactive visualization aiding users in making informed decisions about large product data sets consisting of quantitative and categorical attributes. Our approach tries to overcome common problems between ...

    • Configuring Reference Systems for Certifying GKS Implementations 

      Gbel, M.; Hbner, W. (The Eurographics Association, 1985)
      The development of test packages for certifying GKS implementations is based on the falsification approach which provides a useful framework in the area of software validation. Although there are different test strategies, ...

    • Conflict Neutralization on Binary Space Partitioning 

      James, A.; Day, A.M. (Blackwell Publishers Ltd and the Eurographics Association, 2000)
      The Binary Space Partitioning (BSP) tree achieves fast hidden surface removal for most practical applications where an observer can move through a scene of static objects. However, the BSP algorithm generally increases the ...

    • Conformal Alpha Shapes 

      Cazals, Frederic; Giesen, Joachim; Pauly, Mark; Zomorodian, Afra (The Eurographics Association, 2005)
      We define a new filtration of the Delaunay triangulation of a finite set of points in Rd, similar to the alpha shape filtration. The new filtration is parameterized by a local scale parameter instead of the global scale ...

    • Conformal Factor Persistence for Fast Hierarchical Cone Extraction 

      Vintescu, Ana-Maria; Dupont, Florent; Lavoué, Guillaume; Memari, Pooran; Tierny, Julien (The Eurographics Association, 2017)
      This paper presents a new algorithm for the fast extraction of hierarchies of cone singularities for conformal surface parameterization. Cone singularities have been shown to greatly improve the distortion of such ...

    • Conformal Flattening by Curvature Prescription and Metric Scaling 

      Ben-Chen, Mirela; Gotsman, Craig; Bunin, Guy (The Eurographics Association and Blackwell Publishing Ltd, 2008)
      We present an efficient method to conformally parameterize 3D mesh data sets to the plane. The idea behind our method is to concentrate all the 3D curvature at a small number of select mesh vertices, called cone singularities, ...

    • Conformal Texture Mapping 

      Fiume, E.; Fournier, A.; Canale, V. (Eurographics Association, 1987)
      A new class of geometric mappings is introduced to computer graphics, and the utility of this class is illustrated by applying it to texture mapping. When mapping a texture onto a surface such as a polygon, the entire ...