Now showing items 181-200 of 245

    • Art-Photographic Detail Enhancement 

      Son, Minjung; Lee, Yunjin; Kang, Henry; Lee, Seungyong (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      We present a novel method for enhancing details in a digital photograph, inspired by the principle of art photography. In contrast to the previous methods that primarily rely on tone scaling, our technique provides a ...
    • Temporally Coherent and Spatially Accurate Video Matting 

      Shahrian, Ehsan; Price, Brian; Cohen, Scott; Rajan, Deepu (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Image and video matting are still challenging problems in areas with low foreground-background contrast. Video matting also has the challenge of ensuring temporally coherent mattes because the human visual system is highly ...
    • 4D Video Textures for Interactive Character Appearance 

      Casas, Dan; Volino, Marco; Collomosse, John; Hilton, Adrian (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      animation from a database of 4D actor performance captured in a multiple camera studio. 4D performance capture reconstructs dynamic shape and appearance over time but is limited to free-viewpoint video replay of the same ...
    • Thumbnail Galleries for Procedural Models 

      Lienhard, Stefan; Specht, Matthias; Neubert, Boris; Pauly, Mark; Müller, Pascal (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Procedural modeling allows for the generation of innumerable variations of models from a parameterized, conditional or stochastic rule set. Due to the abstractness, complexity and stochastic nature of rule sets, it is often ...
    • Crowd Sculpting: A Space-time Sculpting Method for Populating Virtual Environments 

      Jordao, Kevin; Pettré, Julien; Christie, Marc; Cani, Marie-Paule (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      We introduce "Crowd Sculpting": a method to interactively design populated environments by using intuitive deformation gestures to drive both the spatial coverage and the temporal sequencing of a crowd motion. Our approach ...
    • Adaptive Texture Space Shading for Stochastic Rendering 

      Andersson, Magnus; Hasselgren, Jon; Toth, Robert; Akenine-Möller, Tomas (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      When rendering effects such as motion blur and defocus blur, shading can become very expensive if done in a naïve way, i.e. shading each visibility sample. To improve performance, previous work often decouple shading from ...
    • Interactive Cloth Rendering of Microcylinder Appearance Model under Environment Lighting 

      Iwasaki, Kei; Mizutani, Kazutaka; Dobashi, Yoshinori; Nishita, Tomoyuki (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      This paper proposes an interactive rendering method of cloth fabrics under environment lighting. The outgoing radiance from cloth fabrics in the microcylinder model is calculated by integrating the product of the distant ...
    • Efficient Monte Carlo Rendering with Realistic Lenses 

      Hanika, Johannes; Dachsbacher, Carsten (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      In this paper we present a novel approach to simulate image formation for a wide range of real world lenses in the Monte Carlo ray tracing framework. Our approach sidesteps the overhead of tracing rays through a system of ...
    • Optimizing BRDF Orientations for the Manipulation of Anisotropic Highlights 

      Raymond, Boris; Guennebaud, Gaël; Barla, Pascal; Pacanowski, Romain; Granier, Xavier (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      This paper introduces a system for the direct editing of highlights produced by anisotropic BRDFs, which we call anisotropic highlights. We first provide a comprehensive analysis of the link between the direction of ...
    • Parameter Estimation and Comparative Evaluation of Crowd Simulations 

      Wolinski, David; Guy, Stephen; Olivier, Anne-Helene; Lin, Ming; Manocha, Dinesh; Pettré, Julien (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      We present a novel framework to evaluate multi-agent crowd simulation algorithms based on real-world observations of crowd movements. A key aspect of our approach is to enable fair comparisons by automatically estimating ...
    • Pose Partitioning for Multi-resolution Segmentation of Arbitrary Mesh Animations 

      Vasilakis, Andreas A.; Fudos, Ioannis (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      We present a complete approach to efficiently deriving a varying level-of-detail segmentation of arbitrary animated objects. An over-segmentation is built by combining sets of initial segments computed for each input pose, ...
    • Rate-distortion Optimized Compression of Motion Capture Data 

      Vasa, Libor; Brunnett, Guido (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Lossy compression of motion capture data can alleviate the problems of efficient storage and transmission by exploiting the redundancy and the superfluous precision of the data. When considering the acceptable amount of ...
    • Interactive Motion Mapping for Real-time Character Control 

      Rhodin, Helge; Tompkin, James; Kim, Kwang In; Varanasi, Kiran; Seidel, Hans-Peter; Theobalt, Christian (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Abstract It is now possible to capture the 3D motion of the human body on consumer hardware and to puppet in real time skeleton-based virtual characters. However, many characters do not have humanoid skeletons. Characters ...
    • Crack-free Rendering of Dynamically Tesselated B-Rep Models 

      Claux, Frédéric; Barthe, Loïc; Vanderhaeghe, David; Jessel, Jean-Pierre; Paulin, Mathias (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      We propose a versatile pipeline to render B-Rep models interactively, precisely and without rendering-related artifacts such as cracks. Our rendering method is based on dynamic surface evaluation using both tesselation and ...
    • IISPH-FLIP for Incompressible Fluids 

      Cornelis, Jens; Ihmsen, Markus; Peer, Andreas; Teschner, Matthias (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      We propose to use Implicit Incompressible Smoothed Particle Hydrodynamics (IISPH) for pressure projection and boundary handling in Fluid-Implicit-Particle (FLIP) solvers for the simulation of incompressible fluids. This ...
    • On-line Real-time Physics-based Predictive Motion Control with Balance Recovery 

      Han, Daseong; Noh, Junyong; Jin, Xiaogang; Shin), Joseph S. Shin (formerly Sung Y. (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      In this paper, we present an on-line real-time physics-based approach to motion control with contact repositioning based on a low-dimensional dynamics model using example motion data. Our approach first generates a reference ...
    • Feedback Control for Rotational Movements in Feature Space 

      Borno, Mazen Al; Fiume, Eugene; Hertzmann, A.; Lasa, M. de (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Synthesizing controllers for rotational movements in feature space is an open research problem and is particularly challenging because of the need to precisely regulate the character s global orientation, angular momentum ...
    • Efficient Enforcement of Hard Articulation Constraints in the Presence of Closed Loops and Contacts 

      Tomcin, Robin; Sibbing, Dominik; Kobbelt, Leif (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      In rigid body simulation, one must distinguish between contacts (so-called unilateral constraints) and articulations (bilateral constraints). For contacts and friction, iterative solution methods have proven most useful ...
    • Laplacian Colormaps: a Framework for Structure-preserving Color Transformations 

      Eynard, Davide; Kovnatsky, Artiom; Bronstein, Michael M. (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Mappings between color spaces are ubiquitous in image processing problems such as gamut mapping, decolorization, and image optimization for color-blind people. Simple color transformations often result in information loss ...
    • A Randomized Algorithm for Natural Object Colorization 

      Jin, Sou-Young; Choi, Ho Jin; Tai, Yu-Wing (The Eurographics Association and John Wiley and Sons Ltd., 2014)
      Natural objects often contain vivid color distribution with wide variety of colors. Conventional colorization techniques, on the other hand, produce colors that are relatively flat with little color variation. In this ...