Now showing items 101-120 of 244

    • Motion Aware Exposure Bracketing for HDR Video 

      Gryaditskaya, Yulia; Pouli, Tania; Reinhard, Erik; Myszkowski, Karol; Seidel, Hans-Peter (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Mobile phones and tablets are rapidly gaining significance as omnipresent image and video capture devices. In this context we present an algorithm that allows such devices to capture high dynamic range (HDR) video. The ...
    • Radiometric Transfer: Example-based Radiometric Linearization of Photographs 

      Li, Han; Peers, Pieter (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We present an example-based approach for radiometrically linearizing photographs that takes as input a radiometrically linear exemplar image and a target regular uncalibrated image of the same scene, possibly from a different ...
    • Smooth Loops from Unconstrained Video 

      Sevilla-Lara, Laura; Wulff, Jonas; Sunkavalli, Kalyan; Shechtman, Eli (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Converting unconstrained video sequences into videos that loop seamlessly is an extremely challenging problem. In this work, we take the first steps towards automating this process by focusing on an important subclass of ...
    • Manifold Next Event Estimation 

      Hanika, Johannes; Droske, Marc; Fascione, Luca (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We present manifold next event estimation (MNEE), a specialised technique for Monte Carlo light transport simulation to render refractive caustics by connecting surfaces to light sources (next event estimation) across ...
    • Probabilistic Connections for Bidirectional Path Tracing 

      Popov, Stefan; Ramamoorthi, Ravi; Durand, Fredo; Drettakis, George (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Bidirectional path tracing (BDPT) with Multiple Importance Sampling is one of the most versatile unbiased rendering algorithms today. BDPT repeatedly generates sub-paths from the eye and the lights, which are connected for ...
    • Improved Half Vector Space Light Transport 

      Hanika, Johannes; Kaplanyan, Anton; Dachsbacher, Carsten (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      In this paper, we present improvements to half vector space light transport (HSLT) [KHD14], which make this approach more practical, robust for difficult input geometry, and faster. Our first contribution is the computation ...
    • Unifying Color and Texture Transfer for Predictive Appearance Manipulation 

      Okura, Fumio; Vanhoey, Kenneth; Bousseau, Adrien; Efros, Alexei A.; Drettakis, George (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Recent color transfer methods use local information to learn the transformation from a source to an exemplar image, and then transfer this appearance change to a target image. These solutions achieve very successful results ...
    • Consistent Scene Editing by Progressive Difference Images 

      Günther, Tobias; Grosch, Thorsten (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Even though much research was dedicated to the acceleration of consistent, progressive light transport simulations, the computation of fully converged images is still very time-consuming. This is problematic, as for the ...
    • Physically Meaningful Rendering using Tristimulus Colours 

      Meng, Johannes; Simon, Florian; Hanika, Johannes; Dachsbacher, Carsten (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      In photorealistic image synthesis the radiative transfer equation is often not solved by simulating every wavelength of light, but instead by computing tristimulus transport, for instance using sRGB primaries as a basis. ...
    • Extracting Microfacet-based BRDF Parameters from Arbitrary Materials with Power Iterations 

      Dupuy, Jonathan; Heitz, Eric; Iehl, Jean-Claude; Poulin, Pierre; Ostromoukhov, Victor (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We introduce a novel fitting procedure that takes as input an arbitrary material, possibly anisotropic, and automatically converts it to a microfacet BRDF. Our algorithm is based on the property that the distribution of ...
    • Portal-Masked Environment Map Sampling 

      Bitterli, Benedikt; Novák, Jan; Jarosz, Wojciech (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We present a technique to e ciently importance sample distant, all-frequency illumination in indoor scenes. Standard environment sampling is ine cient in such cases since the distant lighting is typically only visible ...
    • Stochastic Soft Shadow Mapping 

      Liktor, Gabor; Spassov, Stanislav; Mückl, Gregor; Dachsbacher, Carsten (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      In this paper, we extend the concept of pre-filtered shadow mapping to stochastic rasterization, enabling real-time rendering of soft shadows from planar area lights. Most existing soft shadow mapping methods lose important ...
    • Eurographics Symposium on Rendering 

      Lehtinen, Jaakko; Nowrouzezahrai, Derek (Eurographics Association, 2015)
    • Evaluating 2D Flow Visualization Using Eye Tracking 

      Ho, Hsin-Yang; Yeh, I-Cheng; Lai, Yu-Chi; Lin, Wen-Chieh; Cherng, Fu-Yin (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Flow visualization is recognized as an essential tool for many scientific research fields and different visualization approaches are proposed. Several studies are also conducted to evaluate their effectiveness but these ...
    • Visualization of Coherent Structures of Light Transport 

      Zirr, Tobias; Ament, Marco; Dachsbacher, Carsten (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Inspired by vector field topology, an established tool for the extraction and identification of important features of flows and vector fields, we develop means for the analysis of the structure of light transport. For that, ...
    • Vector Field Visualization of Advective-Diffusive Flows 

      Hochstetter, Hendrik; Wurm, Maximilian; Kolb, Andreas (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We propose a framework for unified visualization of advective and diffusive concentration fluxes, which play a key role in many phenomena like, e.g. Marangoni convection and microscopic mixing. The main idea is the ...
    • Finite-Time Mass Separation for Comparative Visualizations of Inertial Particles 

      Günther, Tobias; Theisel, Holger (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      The visual analysis of flows with inertial particle trajectories is a challenging problem because time-dependent particle trajectories additionally depend on mass, which gives rise to an infinite number of possible ...
    • Towards a Smooth Design Process for Static Communicative Node-link Diagrams 

      Suslik Spritzer, Andre; Boy, Jeremy; Dragicevic, Pierre; Fekete, Jean-Daniel; Dal Sasso Freitas, Carla Maria (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      Node-link infographics are visually very rich and can communicate messages effectively, but can be very difficult to create, often involving a painstaking and artisanal process. In this paper we present an investigation ...
    • GraphUnit: Evaluating Interactive Graph Visualizations Using Crowdsourcing 

      Okoe, Mershack; Jianu, Radu (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We present GraphUnit, a framework and online service that automates the process of designing, running and analyzing results of controlled user studies of graph visualizations by leveraging crowdsourcing and a set of ...
    • Persistent Homology for the Evaluation of Dimensionality Reduction Schemes 

      Rieck, Bastian; Leitte, Heike (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      High-dimensional data sets are a prevalent occurrence in many application domains. This data is commonly visualized using dimensionality reduction (DR) methods. DR methods provide e.g. a two-dimensional embedding of the ...