Now showing items 1-20 of 249

    • Extraction of Dominant Extremal Structures in Volumetric Data Using Separatrix Persistence 

      Günther, D.; Seidel, H.‐P.; Weinkauf, T. (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Extremal lines and surfaces are features of a 3D scalar field where the scalar function becomes minimal or maximal with respect to a local neighborhood
    • Smart Scribbles for Sketch Segmentation 

      Noris, G.; Sýkora, D.; Shamir, A.; Coros, S.; Whited, B.; Simmons, M.; Hornung, A.; Gross, M.; Sumner, R. (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      We present ‘Smart Scribbles’—a new scribble‐based interface for user‐guided segmentation of digital sketchy drawings. In contrast to previous approaches based on simple selection strategies, Smart Scribbles exploits richer ...
    • Temporal Blending for Adaptive SPH 

      Orthmann, Jens; Kolb, Andreas (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      In this paper, we introduce a fast and consistent smoothed particle hydrodynamics (SPH) technique which is suitable for convection–diffusion simulations of incompressible fluids. We apply our temporal blending technique ...
    • Comparison of Four Subjective Methods for Image Quality Assessment 

      Mantiuk, Rafał K.; Tomaszewska, Anna; Mantiuk, Radosław (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      To provide a convincing proof that a new method is better than the state of the art, computer graphics projects are often accompanied by user studies, in which a group of observers rank or rate results of several algorithms. ...
    • Efficient Depth of Field Rasterization Using a Tile Test Based on Half-Space Culling 

      Akenine-Möller, Tomas; Toth, Robert; Munkberg, Jacob; Hasselgren, Jon (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      For depth of field (DOF) rasterization, it is often desired to have an efficient tile versus triangle test, which can conservatively compute which samples on the lens that need to execute the sample-in-triangle test. We ...
    • Data‐Parallel Decompression of Triangle Mesh Topology 

      Meyer, Quirin; Keinert, Benjamin; Sußner, Gerd; Stamminger, Marc (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      We propose a lossless, single‐rate triangle mesh topology codec tailored for fast data‐parallel GPU decompression. Our compression scheme coherently orders generalized triangle strips in memory. To unpack generalized ...
    • Content‐Aware Automatic Photo Enhancement 

      Kaufman, Liad; Lischinski, Dani; Werman, Michael (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Automatic photo enhancement is one of the long‐standing goals in image processing and computational photography. While a variety of methods have been proposed for manipulating tone and colour, most automatic methods used ...
    • Texture Compression using Wavelet Decomposition 

      Mavridis, Pavlos; Papaioannou, Georgios (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      In this paper we introduce a new fixed-rate texture compression scheme based on the energy compaction properties of a modified Haar transform. The coefficients of this transform are quantized and stored using standard block ...
    • Registration Based Non-uniform Motion Deblurring 

      Cho, Sunghyun; Cho, Hojin; Tai, Yu-Wing; Lee, Seungyong (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      This paper proposes an algorithm which uses image registration to estimate a non-uniform motion blur point spread function (PSF) caused by camera shake. Our study is based on a motion blur model which models blur effects ...
    • Two-Finger Gestures for 6DOF Manipulation of 3D Objects 

      Liu, Jingbo; Au, Oscar Kin-Chung; Fu, Hongbo; Tai, Chiew-Lan (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Multitouch input devices afford effective solutions for 6DOF (six Degrees of Freedom) manipulation of 3D objects. Mainly focusing on large-size multitouch screens, existing solutions typically require at least three fingers ...
    • Multi-scale Assemblage for Procedural Texturing 

      Gilet, Guillaume; Dischler, Jean-Michel; Ghazanfarpour, Djamchid (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      A procedural pattern generation process, called multi-scale ''assemblage'' is introduced. An assemblage is defined as a multi-scale composition of ''multi-variate'' statistical figures, that can be kernel functions for ...
    • SD Models: Super-Deformed Character Models 

      Shen, Liang-Tsen; Luo, Sheng-Jie; Huang, Chun-Kai; Chen, Bing-Yu (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Super-deformed, SD, is a specific artistic style for Japanese manga and anime which exaggerates characters in the goal of appearing cute and funny. The SD style characters are widely used, and can be seen in many anime, ...
    • A Global Parity Measure for Incomplete Point Cloud Data 

      Seversky, Lee M.; Yin, Lijun (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Shapes with complex geometric and topological features such as tunnels, neighboring sheets, and cavities are susceptible to undersampling and continue to challenge existing reconstruction techniques. In this work we introduce ...
    • GPU Shape Grammars 

      Marvie, Jean-Eudes; Buron, Cyprien; Gautron, Pascal; Hirtzlin, Patrice; Sourimant, Gaël (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      GPU Shape Grammars provide a solution for interactive procedural generation, tuning and visualization of massive environment elements for both video games and production rendering. Our technique generates detailed models ...
    • Dependency‐Free Parallel Progressive Meshes 

      Derzapf, E.; Guthe, M. (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      The constantly increasing complexity of polygonal models in interactive applications poses two major problems. First, the number of primitives that can be rendered at real‐time frame rates is currently limited to a few ...
    • CageR: Cage‐Based Reverse Engineering of Animated 3D Shapes 

      Thiery, Jean‐Marc; Tierny, Julien; Boubekeur, Tamy (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      We present CageR: A novel framework for converting animated 3D shape sequences into compact and stable cage‐based representations. Given a raw animated sequence with one‐to‐one point correspondences together with an initial ...
    • Linear Surface Reconstruction from Discrete Fundamental Forms on Triangle Meshes 

      Wang, Y.; Liu, B.; Tong, Y. (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      We present a linear algorithm to reconstruct the vertex coordinates for a surface mesh given its edge lengths and dihedral angles, unique up to rotation and translation. A local integrability condition for the existence ...
    • Biharmonic Coordinates 

      Weber, Ofir; Poranne, Roi; Gotsman, Craig (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Barycentric coordinates are an established mathematical tool in computer graphics and geometry processing, providing a convenient way of interpolating scalar or vector data from the boundary of a planar domain to its ...
    • Scalable Programmable Motion Effects on GPUs 

      Huang, Xuezhen; Hou, Qiming; Ren, Zhong; Zhou, Kun (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      We present an efficient and scalable system that enables programmable motion effects on GPUs. Our system is based on the framework proposed by Schmid et al. [SSBG10] that extends the concept of a surface shader to that of ...
    • Improving Photo Composition Elegantly: Considering Image Similarity During Composition 

      Guo, Yanwen; Liu, Ming; Gu, Tingting; Wang, Wenping (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Optimization of images with bad compositions has attracted increasing attention in recent years. Previous methods however seldomly consider image similarity when improving composition aesthetics. This may lead to significant ...