Now showing items 6310-6329 of 17196

    • GEOMETRIC MODELLING USING EXACT OCTREE REPRESENTATION OF POLYHEDRAL OBJECTS 

      Brunet, Pere; Navazo, Isabel (The Eurographics Association, 1985)
      In the last few years, octrees have been proposed for the representation of solids in Geometric Modelling systems. Using them, boolean operations are simple; however, they use a great amount of memory and it is very difficult ...
    • Geometric Morphometrics for Provenance Determination of Gallo-Roman White Clay Figurines 

      Bourdeu, Alexandre; Pitzalis, Denis (The Eurographics Association, 2010)
      Hundreds of Gallo-Roman white clay figurines coming from the center of France and available in the French museums have been digitized by the Centre de Recherche et de Restauration des Musées de France using threedimensional ...
    • A Geometric Optimization Approach for the Detection and Segmentation of Multiple Aneurysms 

      Lawonn, Kai; Meuschke, Monique; Wickenhöfer, Ralph; Preim, Bernhard; Hildebrandt, Klaus (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      We present a method for detecting and segmenting aneurysms in blood vessels that facilitates the assessment of risks associated with the aneurysms. The detection and analysis of aneurysms is important for medical diagnosis ...
    • Geometric Point Light Source Calibration 

      Ackermann, Jens; Fuhrmann, Simon; Goesele, Michael (The Eurographics Association, 2013)
      We present a light position calibration technique based on a general arrangement of at least two reflective spheres in a single image. Contrary to other techniques we do not directly intersect rays for triangulation but ...
    • Geometric Reconstruction of the Ostium of Cerebral Aneurysms 

      Neugebauer, Mathias; Diehl, Volker; Skalej, Martin; Preim, Bernhard (The Eurographics Association, 2010)
      Polygonal 3D-reconstructions of cerebral aneurysms, combined with simulated or measured flow data provide important information for medical research, risk assessment and therapy planning. Landmarks, orientation axis, and ...
    • Geometric Registration for Deformable Shapes 

      Chang, Will; Huang, QiXing; Li, Hao; Mitra, Niloy; Pauly, Mark; Wand, Michael (The Eurographics Association, 2010)
      This tutorial overviews recent exciting and rapidly evolving research on registration and correspondence finding across multiple deforming shapes. We address the basic techniques of three main topic areas: <br>Pair-wise ...
    • Geometric Sample Reweighting for Monte Carlo Integration 

      Guo, Jerry Jinfeng; Eisemann, Elmar (The Eurographics Association and John Wiley & Sons Ltd., 2021)
      Numerical integration is fundamental in multiple Monte Carlo rendering problems. We present a sample reweighting scheme, including underlying theory, and analysis of numerical performance for the integration of an unknown ...
    • Geometric Signal Processing on Polygonal Meshes 

      Taubin, G. (Eurographics Association, 2000)
      Very large polygonal models, which are used in more and more graphics applications today, are routinely generated by a variety of methods such as surface reconstruction algorithms from 3D scanned data, isosurface construction ...
    • Geometric Simplification of Foliage 

      Remolar, Inmaculada; Chover, Miguel; Belmonte, Oscar; Ribelles, Jose; Rebollo, Cristina (Eurographics Association, 2002)
      One of the most important challenges in real-time rendering of outdoor scenes is the representation of vegetation. This is due to the vast amount of polygons that are used to model vegetable species. The present automatic ...
    • Geometric Snakes for Triangular Meshes 

      Lee, Y.; Lee, S. (Blackwell Publishers, Inc and the Eurographics Association, 2002)
      Feature detection is important in various mesh processing techniques, such as mesh editing, mesh morphing, mesh compression, and mesh signal processing. In spite of much research in computer vision, automatic feature ...
    • Geometric Stiffness for Real-time Constrained Multibody Dynamics 

      Andrews, Sheldon; Teichmann, Marek; Kry, Paul G. (The Eurographics Association and John Wiley & Sons Ltd., 2017)
      This paper focuses on the stable and efficient simulation of articulated rigid body systems for real-time applications. Specifically, we focus on the use of geometric stiffness, which can dramatically increase simulation ...
    • Geometric Texture Synthesis by Example 

      Bhat, Pravin; Ingram, Stephen; Turk, Greg (The Eurographics Association, 2004)
      Patterns on real-world objects are often due to variations in geometry across the surface. Height fields and other common parametric methods cannot synthesize many forms of geometric surface texture such as thorns, scales, ...
    • THE GEOMETRIC WORKBENCH (GWB) - AN EXPERIMENTAL GEOMETRIC MODELING SYSTEM 

      Mäntylä, Martti; Takala, Tapio (The Eurographics Association, 1981)
      The Geometric workbench (GWB), an experimental. geometric modeling system, is described. It is based on a hybrid representation scheme, where solids are represented by CSG volume trees and boundary representations. Boundary ...
    • Geometric, Variational Integrators for Computer Animation 

      Kharevych, Liliya; Yang, Weiwei; Tong, Yiying; Kanso, Eva; Marsden, Jerrold E.; Schröder, Peter; Desbrun, Matthieu (The Eurographics Association, 2006)
      We present a general-purpose numerical scheme for time integration of Lagrangian dynamical systems an important computational tool at the core of most physics-based animation techniques. Several features make this particular ...
    • Geometrical Algorithms for Real Time Sound Rendering Using Intelligent Prioritization 

      Charalampous, Panagiotis; Michael-Grigoriou, Despina (The Eurographics Association, 2018)
      Geometrical algorithms have been the main subject of research in the field of real time sound rendering. These algorithms are variants of the image source and ray tracing algorithms, enhanced with improvements that speed ...
    • A Geometrical Based Method for Highly Complex Structured Textures Generation 

      Dischler, Jean-Michel; Ghazanfarpour, Djamchid (Blackwell Science Ltd and the Eurographics Association, 1995)
      Conventional 2D or 3D texturing methods do not permit an efficient simulation of highly complex structured textures like fire, fur, cotton, etc. More recent techniques, using specific kinds of 3D textures, such as hypertextures ...
    • Geometrical-Acoustics-based Ultrasound Image Simulation 

      Law, Yuen C.; Knott, Thomas; Hentschel, Bernd; Kuhlen, Torsten (The Eurographics Association, 2012)
      Brightness modulation (B-Mode) ultrasound (US) images are used to visualize internal body structures during diagnostic and invasive procedures, such as needle insertion for Regional Anesthesia. Due to patient availability ...
    • Geometrically Based Linear Iterative Clustering for Quantitative Feature Correspondence 

      Yan, Qingan; Yang, Long; Liang, Chao; Liu, Huajun; Hu, Ruimin; Xiao, Chunxia (The Eurographics Association and John Wiley & Sons Ltd., 2016)
      A major challenge in feature matching is the lack of objective criteria to determine corresponding points. Recent methods find match candidates first by exploring the proximity in descriptor space, and then rely on a ...
    • A Geometrically Consistent Viscous Fluid Solver with Two-Way Fluid-Solid Coupling 

      Takahashi, Tetsuya; Lin, Ming C. (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      We present a grid-based fluid solver for simulating viscous materials and their interactions with solid objects. Our method formulates the implicit viscosity integration as a minimization problem with consistently estimated ...
    • Geometrically Exact Simulation of Inextensible Ribbon 

      Shen, Zhongwei; Huang, Jin; Chen, Wei; Bao, Hujun (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Narrow, inextensible, and naturally flat ribbons have some special and interesting phenomena under isometric deformations. Although a ribbon has a shape between rod and shell, directly applying the geometric representation ...