Now showing items 1-20 of 67

    • Realistic Following Behaviors for Crowd Simulation 

      Lemercier, Samuel; Jelic, Asja; Kulpa, Richard; Hua, Jiale; Fehrenbach, Jérôme; Degond, Pierre; Appert-Rolland, Cécile; Donikian, Stéphane; Pettré, Julien (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      While walking through a crowd, a pedestrian experiences a large number of interactions with his neighbors. The nature of these interactions is varied, and it has been observed that macroscopic phenomena emerge from the ...
    • Manipulation of Flexible Objects by Geodesic Control 

      Wang, He; Komura, Taku (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      We propose an effective and intuitive method for controlling flexible models such as ropes and cloth. Automating manipulation of such flexible objects is not an easy task due to the high dimensionality of the objects and ...
    • Data-Driven Estimation of Cloth Simulation Models 

      Miguel, Eder; Bradley, Derek; Thomaszewski, Bernhard; Bickel, Bernd; Matusik, Wojciech; Otaduy, Miguel A.; Marschner, Steve (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      Progress in cloth simulation for computer animation and apparel design has led to a multitude of deformation models, each with its own way of relating geometry, deformation, and forces. As simulators improve, differences ...
    • Super-Clothoids 

      Bertails-Descoubes, Florence (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      Piecewise clothoids are 2D curves with continuous, piecewise linear curvature. Due to their smoothness properties, they have been extensively used in road design and robot path planning, as well as for the compact ...
    • Manufacturing Layered Attenuators for Multiple Prescribed Shadow Images 

      Baran, Ilya; Keller, Philipp; Bradley, Derek; Coros, Stelian; Jarosz, Wojciech; Nowrouzezahrai, Derek; Gross, Markus (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      We present a practical and inexpensive method for creating physical objects that cast different color shadow images when illuminated by prescribed lighting configurations. The input to our system is a number of lighting ...
    • Pixel Art with Refracted Light by Rearrangeable Sticks 

      Yue, Yonghao; Iwasaki, Kei; Chen, Bing-Yu; Dobashi, Yoshinori; Nishita, Tomoyuki (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      Pixel art is a kind of digital art that through per-pixel manipulation enables production of a diverse array of artistic images. In this paper, we present a new way for people to experience and express pixel art. Our digital ...
    • SHADOWPIX: Multiple Images from Self Shadowing 

      Bermano, Amit; Baran, Ilya; Alexa, Marc; Matusik, Wojciech (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      SHADOWPIX are white surfaces that display several prescribed images formed by the self-shadowing of the surface when lit from certain directions. The effect is surprising and not commonly seen in the real world. We present ...
    • A Cell-Based Light Interaction Model for Human Blood 

      Yim, Daniel; Baranoski, Gladimir V. G.; Kimmel, Brad W.; Chen, T. Francis; Miranda, Erik (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      The development of predictive appearance models for organic tissues is a challenging task due to the inherent complexity of these materials. In this paper, we closely examine the biophysical processes responsible for the ...
    • A Computational Model of Afterimages 

      Ritschel, Tobias; Eisemann, Elmar (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      Afterimages are optical illusions, particularly well perceived when fixating an image for an extended period of time and then looking at a neutral background, where an inverted copy of the original stimulus appears. The ...
    • crdbrd: Shape Fabrication by Sliding Planar Slices 

      Hildebrand, Kristian; Bickel, Bernd; Alexa, Marc (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      We introduce an algorithm and representation for fabricating 3D shape abstractions using mutually intersecting planar cut-outs. The planes have prefabricated slits at their intersections and are assembled by sliding them ...
    • Perceptually Linear Parameter Variations 

      Lindow, Norbert; Baum, Daniel; Hege, Hans-Christian (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      Most visual analysis tasks require interactive adjustment of parameter values. In general, a linear variation of a parameter, using for instance a GUI slider, changes the visual result in a perceptually non-linear way. ...
    • Computational Design of Rubber Balloons 

      Skouras, Mélina; Thomaszewski, Bernhard; Bickel, Bernd; Gross, Markus (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      This paper presents an automatic process for fabrication-oriented design of custom-shaped rubber balloons. We cast computational balloon design as an inverse problem: given a target shape, we compute an optimal balloon ...
    • NoRM: No-Reference Image Quality Metric for Realistic Image Synthesis 

      Herzog, Robert; Cadík, Martin; Aydin, Tunç O.; Kim, Kwang In; Myszkowski, Karol; Seidel, Hans-Peter (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      Synthetically generating images and video frames of complex 3D scenes using some photo-realistic rendering software is often prone to artifacts and requires expert knowledge to tune the parameters. The manual work required ...
    • Crowd Light: Evaluating the Perceived Fidelity of Illuminated Dynamic Scenes 

      Jarabo, Adrian; Eyck, Tom Van; Sundstedt, Veronica; Bala, Kavita; Gutierrez, Diego; O'Sullivan, Carol (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      Rendering realistic illumination effects for complex animated scenes with many dynamic objects or characters is computationally expensive. Yet, it is not obvious how important such accurate lighting is for the overall ...
    • Rationalization of Triangle-Based Point-Folding Structures 

      Zimmer, Henrik; Campen, Marcel; Bommes, David; Kobbelt, Leif (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      In mechanical engineering and architecture, structural elements with low material consumption and high loadbearing capabilities are essential for light-weight and even self-supporting constructions. This paper deals with ...
    • Unsharp Masking, Countershading and Halos: Enhancements or Artifacts? 

      Trentacoste, Matthew; Mantiuk, Rafal; Heidrich, Wolfgang; Dufrot, Florian (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      Countershading is a common technique for local image contrast manipulations, and is widely used both in automatic settings, such as image sharpening and tonemapping, as well as under artistic control, such as in paintings ...
    • Selective Inspection and Interactive Visualization of Light Transport in Virtual Scenes 

      Reiner, Tim; Kaplanyan, Anton; Reinhard, Marcel; Dachsbacher, Carsten (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      This paper presents novel interactive visualization techniques for inspecting the global light transport in virtual scenes. First, we propose a simple extension to photon mapping to gather required lighting information. ...
    • SMAA: Enhanced Subpixel Morphological Antialiasing 

      Jimenez, Jorge; Echevarria, Jose I.; Sousa, Tiago; Gutierrez, Diego (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      We present a new image-based, post-processing antialiasing technique, which offers practical solutions to the common, open problems of existing filter-based real-time antialiasing algorithms. Some of the new features include ...
    • Data-Driven Object Manipulation in Images 

      Goldberg, Chen; Chen, Tao; Zhang, Fang-Lue; Shamir, Ariel; Hu, Shi-Min (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      We present a framework for interactively manipulating objects in a photograph using related objects obtained from internet images. Given an image, the user selects an object to modify, and provides keywords to describe it. ...
    • Procedural Interpolation of Historical City Maps 

      Krecklau, Lars; Manthei, Christopher; Kobbelt, Leif (The Eurographics Association and John Wiley and Sons Ltd., 2012)
      We propose a novel approach for the temporal interpolation of city maps. The input to our algorithm is a sparse set of historical city maps plus optional additional knowledge about construction or destruction events. The ...