Now showing items 181-200 of 241

    • Specular Effects on the GPU: State of the Art 

      Szirmay-Kalos, Laszlo; Umenhoffer, Tamas; Patow, Gustavo; Szecsi, Laszlo; Sbert, Mateu (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      This survey reviews algorithms that can render specular, i.e. mirror reflections, refractions, and caustics on the GPU. We establish a taxonomy of methods based on the three main different ways of representing the scene ...
    • Biorthogonal Wavelets Based on Interpolatory Subdivision 

      Wang, H.; Ma, W. (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      This article presents an efficient construction of biorthogonal wavelets built upon an interpolatory subdivision for quadrilateral meshes. The interpolatory subdivision scheme is first turned into a scheme for reversible ...
    • A Time Model for Time-Varying Visualization 

      Wolter, M.; Assenmacher, I.; Hentschel, B.; Schirski, M.; Kuhlen, T. (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      The analysis of unsteady phenomena is an important topic for scientific visualization. Several time-dependent visualization techniques exist, as well as solutions for dealing with the enormous size of time-varying data in ...
    • Animating Quadrupeds: Methods and Applications 

      Skrba, Ljiljana; Reveret, Lionel; Hetroy, Franck; Cani, Marie-Paule; O'Sullivan, Carol (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      Films like Shrek, Madagascar, The Chronicles of Narnia and Charlotte s web all have something in common: realistic quadruped animations. While the animation of animals has been popular for a long time, the technical ...
    • COBRA: Compression of the Basis for PCA Represented Animations 

      Vasa, L.; Skala, V. (The Eurographics Association and Blackwell Publishing Ltd, 2009)
    • Exposure Fusion: A Simple and Practical Alternative to High Dynamic Range Photography 

      Mertens, T.; Kautz, J.; Van Reeth, F. (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      We propose a technique for fusing a bracketed exposure sequence into a high quality image, without converting to High dynamic range (HDR) first. Skipping the physically based HDR assembly step simplifies the acquisition ...
    • CGForum 2009 Cover Image 

      Spencer, Ben; Jones, Mark W. (The Eurographics Association and Blackwell Publishing Ltd, 2009)
    • Out-of-Core and Dynamic Programming for Data Distribution on a Volume Visualization Cluster 

      Frank, S.; Kaufman, A. (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      Ray directed volume-rendering algorithms are well suited for parallel implementation in a distributed cluster environment. For distributed ray casting, the scene must be partitioned between nodes for good load balancing, ...
    • Visual-Quality Optimizing Super Resolution 

      Liu, F.; Wang, J.; Zhu, S.; Gleicher, M.; Gong, Y. (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      In this paper, we propose a robust image super-resolution (SR) algorithm that aims to maximize the overall visual quality of SR results. We consider a good SR algorithm to be fidelity preserving, image detail enhancing and ...
    • A Comparison of Tabular PDF Inversion Methods 

      Cline, D.; Razdan, A.; Wonka, P. (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      The most common form of tabular inversion used in computer graphics is to compute the cumulative distribution table of a probability distribution (PDF) and then search within it to transform points, using an O(logA n) ...
    • BTF-CIELab: A Perceptual Difference Measure for Quality Assessment and Compression of BTFs 

      Guthe, Michael; Mueller, Gero; Schneider, Martin; Klein, Reinhard (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      Driven by the advances in lossy compression of bidirectional texture functions (BTFs), there is a growing need for reliable methods to numerically measure the visual quality of the various compressed representations. Based ...
    • Tangential Distance Fields for Mesh Silhouette Problems 

      Olson, M.; Zhang, H. (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      We consider a tangent-space representation of surfaces that maps each point on a surface to the tangent plane of the surface at that point. Such representations are known to facilitate the solution of several visibility ...
    • Shape Context Preserving Deformation of 2D Anatomical Illustrations 

      Chen, Wei; Liang, Xiao; Maciejewski, Ross; Ebert, David S. (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      In this paper, we present a novel two-dimensional (2D) shape context preserving image manipulation approach which constructs and manipulates a 2D mesh with a new differential mesh editing algorithm. We introduce a novel ...
    • Efficient Geometry Compression for GPU-based Decoding in Realtime Terrain Rendering 

      Dick, Christian; Schneider, Jens; Westermann, Ruediger (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      We present a geometry compression scheme for restricted quadtree meshes and use this scheme for the compression of adaptively triangulated digital elevation models (DEMs). A compression factor of 8-9 is achieved by employing ...
    • Resolution Independent NPR-Style 3D Line Textures 

      Potter, Kristin; Gooch, Amy; Gooch, Bruce; Willemsen, Peter; Kniss, Joe; Riesenfeld, Richard; Shirley, Peter (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      This work introduces a technique for interactive walk-throughs of non-photorealistically rendered (NPR) scenes using three-dimensional (3D) line primitives to define architectural features of the model, as well as indicate ...
    • Partial 3D Shape Retrieval by Reeb Pattern Unfolding 

      Tierny, Julien; Vandeborre, Jean-Philippe; Daoudi, Mohamed (The Eurographics Association and Blackwell Publishing Ltd, 2009)
    • Fast Ray Tracing of Arbitrary Implicit Surfaces with Interval and Affine Arithmetic 

      Knoll, A.; Hijazi, Y.; Kensler, A.; Schott, M.; Hansen, C.; Hagen, H. (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      Existing techniques for rendering arbitrary-form implicit surfaces are limited, either in performance, correctness or flexibility. Ray tracing algorithms employing interval arithmetic (IA) or affine arithmetic (AA) for ...
    • A Psychophysical Evaluation of Inverse Tone Mapping Techniques 

      Banterle, Francesco; Ledda, Patrick; Debattista, Kurt; Bloj, Marina; Artusi, Alessandro; Chalmers, Alan (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      In recent years inverse tone mapping techniques have been proposed for enhancing low-dynamic range (LDR) content for a high-dynamic range (HDR) experience on HDR displays, and for image based lighting. In this paper, we ...
    • Compression of Human Motion Capture Data Using Motion Pattern Indexing 

      Gu, Qin; Peng, Jingliang; Deng, Zhigang (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      In this work, a novel scheme is proposed to compress human motion capture data based on hierarchical structure construction and motion pattern indexing. For a given sequence of 3D motion capture data of human body, the 3D ...
    • Editorial 

      Scopigno, Roberto; Groeller, Eduard (The Eurographics Association and Blackwell Publishing Ltd, 2009)