Now showing items 223-242 of 440

    • Making Radiance and Irradiance Caching Practical: Adaptive Caching and Neighbor Clamping 

      Krivánek, Jaroslav; Bouatouch, Kadi; Pattanaik, Sumanta; Zára, Jirí (The Eurographics Association, 2006)
      Radiance and irradiance caching are efficient global illumination algorithms based on interpolating indirect illumination from a sparse set of cached values. In this paper we propose an adaptive algorithm for guiding spatial ...
    • 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 ...
    • ManyLoDs: Parallel Many-View Level-of-Detail Selection for Real-Time Global Illumination 

      Holländer, Matthias; Ritschel, Tobias; Eisemann, Elmar; Boubekeur, Tamy (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Level-of-Detail structures are a key component for scalable rendering. Built from raw 3D data, these structures are often defined as Bounding Volume Hierarchies, providing coarse-to-fine adaptive approximations that are ...
    • Material Based Splashing of Water Drops 

      Garg, Kshitiz; Krishnan, Gurunandan G.; Nayar, Shree K. (The Eurographics Association, 2007)
      The splashing of a water drop is a fascinating phenomenon that results from a variety of complex interactions between the drop and the material it impacts. In general, the distribution of droplets of a splash depends on ...
    • Matting and Compositing for Fresnel Reflection on Wavy Surfaces 

      Endo, Yuki; Kanamori, Yoshihiro; Fukui, Yukio; Mitani, Jun (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      This paper introduces a framework that can extract an alpha matte from a single image with Fresnel reflection, and that can composite other objects with the image such that plausible reflections are included. Our method ...
    • Measuring the Perception of Visual Realism in Images 

      Rademacher, Paul; Lengyel, Jed; Cutrell, Edward; Whitted, Turner (The Eurographics Association, 2001)
      One of the main goals in realistic rendering is to generate images that are indistinguishable from photographs but how do observers decide whether an image is photographic or computer-generated? If this perceptual process ...
    • Metropolis Photon Sampling with Optional User Guidance 

      Fan, Shaohua; Chenney, Stephen; Lai, Yu-chi (The Eurographics Association, 2005)
      We present Metropolis Photon Sampling (MPS), a visual importance-driven algorithm for populating photon maps. Photon Mapping and other particle tracing algorithms fail if the photons are poorly distributed. Our approach ...
    • Microfacet Billboarding 

      Yamazaki, Shuntaro; Sagawa, Ryusuke; Kawasaki, Hiroshi; Ikeuchi, Katsushi; Sakauchi, Masao (The Eurographics Association, 2002)
      Rendering of intricately shaped objects that are soft or cluttered is difficult because we cannot accurately acquire their complete geometry. Since their geometry varies drastically, modeling them using fixed facets can ...
    • Microfacet Models for Refraction through Rough Surfaces 

      Walter, Bruce; Marschner, Stephen R.; Li, Hongsong; Torrance, Kenneth E. (The Eurographics Association, 2007)
      Microfacet models have proven very successful for modeling light reflection from rough surfaces. In this paper we review microfacet theory and demonstrate how it can be extended to simulate transmission through rough ...
    • Modeling Luminance Perception at Absolute Threshold 

      Kellnhofer, Petr; Ritschel, Tobias; Myszkowski, Karol; Eisemann, Elmar; Seidel, Hans-Peter (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      When human luminance perception operates close to its absolute threshold, i. e., the lowest perceivable absolute values, appearance changes substantially compared to common photopic or scotopic vision. In particular, most ...
    • 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 ...
    • Motion based Painterly Rendering 

      Lee, H.; Lee, C. H.; Yoon, K. (The Eurographics Association and Blackwell Publishing Ltd, 2009)
      Previous painterly rendering techniques normally use image gradients for deciding stroke orientations. Image gradients are good for expressing object shapes, but difficult to express the flow or movements of objects. In ...
    • Motion Blur for Textures by Means of Anisotropic Filtering 

      Loviscach, Joern (The Eurographics Association, 2005)
      The anisotropic filtering offered by current graphics hardware can be employed to apply motion blur to textures. The solution proposed here uses a standard texture together with a vertex and a pixel shader acting on a mesh ...
    • Multi-Image Based Photon Tracing for Interactive Global Illumination of Dynamic Scenes 

      Yao, Chunhui; Wang, Bin; Chan, Bin; Yong, Junhai; Paul, Jean-Claude (The Eurographics Association and Blackwell Publishing Ltd, 2010)
      Image space photon mapping has the advantage of simple implementation on GPU without pre-computation of complex acceleration structures. However, existing approaches use only a single image for tracing caustic photons, so ...
    • Multiple Textures Stitching and Blending on 3D Objects 

      Rocchini, C.; Cignoni, P.; Montani, C.; Scopigno, R. (The Eurographics Association, 1999)
      In this paper we propose a new approach for mapping and blending textures on 3D geometries. The system starts from a 3D mesh which represents a real object and improves this model with pictorial detail. Texture detail is ...
    • Multiresolution Reflectance Filtering 

      Tan, Ping; Lin, Stephen; Quan, Long; Guo, Baining; Shum, Heung-Yeung (The Eurographics Association, 2005)
      Physically-based reflectance models typically represent light scattering as a function of surface geometry at the pixel level. With changes in viewing resolution, the geometry imaged within a pixel can undergo significant ...
    • Natural Image Colorization 

      Luan, Qing; Wen, Fang; Cohen-Or, Daniel; Liang, Lin; Xu, Ying-Qing; Shum, Heung-Yeung (The Eurographics Association, 2007)
      In this paper, we present an interactive system for users to easily colorize the natural images of complex scenes. In our system, colorization procedure is explicitly separated into two stages: Color labeling and Color ...
    • Near Optimal Hierarchical Culling: Performance Driven Use of Hardware Occlusion Queries 

      Guthe, Michael; Balázs, Ákos; Klein, Reinhard (The Eurographics Association, 2006)
      The most efficient general occlusion culling techniques are based on hardware accelerated occlusion queries. Although in many cases these techniques can considerably improve performance, they may still reduce efficiency ...
    • A New Reconstruction Filter for Undersampled Light Fields 

      Stewart, J.; Yu, J.; Gortler, S.J.; McMillan, L. (The Eurographics Association, 2003)
      This paper builds on previous research in the light field area of image-based rendering. We present a new reconstruction filter that significantly reduces the "ghosting" artifacts seen in undersampled light fields, while ...
    • A New Ward BRDF Model with Bounded Albedo 

      Geisler-Moroder, David; Duer, Arne (The Eurographics Association and Blackwell Publishing Ltd, 2010)
      Due to its realistic appearance, computational convenience, and efficient Monte Carlo sampling, Ward s anisotropic BRDF is widely used in computer graphics for modeling specular reflection. Incorporating the criticism that ...