Now showing items 261-280 of 440

    • Stippling and Silhouettes Rendering in Geometry-Image Space 

      Yuan, Xiaoru; Nguyen, Minh X.; Zhang, Nan; Chen, Baoquan (The Eurographics Association, 2005)
      We present a novel non-photorealistic rendering method that performs all operations in a geometry-image domain. We first apply global conformal parameterization to the input geometry model and generate corresponding geometry ...
    • Geometric Clustering for Line Drawing Simplification 

      Barla, Pascal; Thollot, Joelle; Sillion, François X. (The Eurographics Association, 2005)
      We present a new approach to the simplification of line drawings, in which a smaller set of lines is created to represent the geometry of the original lines. An important feature of our method is that it maintains the ...
    • Inferring Reflectance Functions from Wavelet Noise 

      Peers, Pieter; Dutré, Philip (The Eurographics Association, 2005)
      This paper presents a novel method for acquiring a wavelet representation of the reflectance field of real objects. Key to our method is the use of wavelet noise illumination to infer a reflectance function for each pixel. ...
    • Table-top Computed Lighting for Practical Digital Photography 

      Mohan, Ankit; Tumblin, Jack; Bodenheimer, Bobby; Grimm, Cindy; Bailey, Reynold (The Eurographics Association, 2005)
      We apply simplified image-based lighting methods to reduce the equipment, cost, time, and specialized skills required for high-quality photographic lighting of desktop-sized static objects such as museum artifacts. We place ...
    • Bayesian Relighting 

      Fuchs, Martin; Blanz, Volker; Seidel, Hans-Peter (The Eurographics Association, 2005)
      We present a simple method for relighting real objects viewed from a fixed camera position. Instead of setting up a calibrated measurement device, such as a light stage, we manually sweep a spotlight over the walls of a ...
    • Bidirectional Importance Sampling for Direct Illumination 

      Burke, David; Ghosh, Abhijeet; Heidrich, Wolfgang (The Eurographics Association, 2005)
      Image-based representations for illumination can capture complex real-world lighting that is difficult to represent in other forms. Current importance sampling strategies for image-based illumination have difficulties in ...
    • 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 ...
    • Importance Resampling for Global Illumination 

      Talbot, Justin; Cline, David; Egbert, Parris (The Eurographics Association, 2005)
      This paper develops importance resampling into a variance reduction technique for Monte Carlo integration. Importance resampling is a sample generation technique that can be used to generate more equally weighted samples ...
    • Experimental Analysis of BRDF Models 

      Ngan, Addy; Durand, Frédo; Matusik, Wojciech (The Eurographics Association, 2005)
      The Bidirectional Reflectance Distribution Function (BRDF) describes the appearance of a material by its interaction with light at a surface point. A variety of analytical models have been proposed to represent BRDFs. ...
    • 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 ...
    • 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 ...
    • Texture Tiling on Arbitrary Topological Surfaces using Wang Tiles 

      Fu, Chi-Wing; Leung, Man-Kang (The Eurographics Association, 2005)
      Synthesizing textures on arbitrary surfaces is a time consuming process. We have to analyze the surface geometry and map texture values onto the input surface adaptively. Texture tiling provides an alternative approach by ...
    • A Dual Light Stage 

      Hawkins, Tim; Einarsson, Per; Debevec, Paul (The Eurographics Association, 2005)
      We present a technique for capturing high-resolution 4D reflectance fields using the reciprocity property of light transport. In our technique we place the object inside a diffuse spherical shell and scan a laser across ...
    • Online Construction of Surface Light Fields 

      Coombe, Greg; Hantak, Chad; Lastra, Anselmo; Grzeszczuk, Radek (The Eurographics Association, 2005)
      We present a system for interactively capturing, constructing, and rendering surface light fields by incrementally building a low rank approximation to the surface light field. Each image is incorporated into the lighting ...
    • Radiance Cache Splatting: A GPU-Friendly Global Illumination Algorithm 

      Gautron, Pascal; Krivánek, Jaroslav; Bouatouch, Kadi; Pattanaik, Sumanta (The Eurographics Association, 2005)
      Fast global illumination computation is a challenge in several fields such as lighting simulation and computergenerated visual effects for movies. To this end, the irradiance caching algorithm is commonly used since it ...
    • Estimation of 3D Faces and Illumination from Single Photographs Using A Bilinear Illumination Model 

      Lee, Jinho; Pfister, Hanspeter; Moghaddam, Baback; Machiraju, Raghu (The Eurographics Association, 2005)
      3D Face modeling is still one of the biggest challenges in computer graphics. In this paper we present a novel framework that acquires the 3D shape, texture, pose and illumination of a face from a single photograph. ...
    • Out of Core Photon-Mapping for Large Buildings 

      Fradin, David; Meneveaux, Daniel; Horna, Sebastien (The Eurographics Association, 2005)
      This paper describes a new scheme for computing out-of-core global illumination in complex indoor scenes using a photon-mapping approach. Our method makes use of a cells-and-portals representation of the environment for ...
    • Interactive System for Dynamic Scene Lighting using Captured Video Environment Maps 

      Havran, Vlastimil; Smyk, Miloslaw; Krawczyk, Grzegorz; Myszkowski, Karol; Seidel, Hans-Peter (The Eurographics Association, 2005)
      We present an interactive system for fully dynamic scene lighting using captured high dynamic range (HDR) video environment maps. The key component of our system is an algorithm for efficient decomposition of HDR video ...
    • Ray Maps for Global Illumination 

      Havran, Vlastimil; Bittner, Jiri; Herzog, Robert; Seidel, Hans-Peter (The Eurographics Association, 2005)
      We describe a novel data structure for representing light transport called ray map. The ray map extends the concept of photon maps: it stores not only photon impacts but the whole photon paths. We demonstrate the utility ...
    • Spherical Q2-tree for Sampling Dynamic Environment Sequences 

      Wan, Liang; Wong, Tien-Tsin; Leung, Chi-Sing (The Eurographics Association, 2005)
      Previous methods in environment map sampling seldom consider a sequence of dynamic environment maps. The generated sampling patterns of the sequence may not maintain the temporal illumination consistency and result in ...