Browsing EGSR07: 18th Eurographics Symposium on Rendering by Title

Now showing items 26-35 of 35

    • The Random Camera, the Coded Aperture Camera, and Other Cameras 

      Freeman, William T. (The Eurographics Association, 2007)
      I ll describe two cameras and a comparison of many cameras. In the random camera, we use a lens which creates a pseudo-random relationship between incoming light rays and resulting sensor locations. We studied various ...

    • Rapid Acquisition of Specular and Diffuse Normal Maps from Polarized Spherical Gradient Illumination 

      Ma, Wan-Chun; Hawkins, Tim; Peers, Pieter; Chabert, Charles-Felix; Weiss, Malte; Debevec, Paul (The Eurographics Association, 2007)
      We estimate surface normal maps of an object from either its diffuse or specular reflectance using four spherical gradient illumination patterns. In contrast to traditional photometric stereo, the spherical patterns allow ...

    • Ray Tracing Dynamic Scenes using Selective Restructuring 

      Yoon, Sung-Eui; Curtis, Sean; Manocha, Dinesh (The Eurographics Association, 2007)
      We present a novel algorithm to selectively restructure bounding volume hierarchies (BVHs) for ray tracing dynamic scenes. We derive two new metrics to evaluate the culling efficiency and restructuring benefit of any BVH. ...

    • A Real-time Beam Tracer with Application to Exact Soft Shadows 

      Overbeck, Ryan; Ramamoorthi, Ravi; Mark, William R. (The Eurographics Association, 2007)
      Efficiently calculating accurate soft shadows cast by area light sources remains a difficult problem. Ray tracing based approaches are subject to noise or banding, and most other accurate methods either scale poorly with ...

    • Rendering Discrete Random Media Using Precomputed Scattering Solutions 

      Moon, Jonathan T.; Walter, Bruce; Marschner, Stephen R. (The Eurographics Association, 2007)
      This paper addresses light transport through a discrete random medium, which we define as a volume filled with macroscopic scattering geometry generated by a random process. This formulation is more general than standard ...

    • Rendering Translucent Materials Using Photon Diffusion 

      Donner, Craig; Jensen, Henrik Wann (The Eurographics Association, 2007)
      We present a new algorithm for rendering translucent materials that combines photon tracing with diffusion. This combination makes it possible to efficiently render highly scattering translucent materials while accounting ...

    • Scene Collages and Flexible Camera Arrays 

      Nomura, Yoshikuni; Zhang, Li; Nayar, Shree K. (The Eurographics Association, 2007)
      This paper presents an automatic method for creating a collage from a collection of photos of a scene taken from different viewpoints. The collage is constructed by aligning the images (in terms of their positions, rotations ...

    • Soft Shadows by Ray Tracing Multilayer Transparent Shadow Maps 

      Xie, Feng; Tabellion, Eric; Pearce, Andrew (The Eurographics Association, 2007)
      We present a method for high quality soft shadows for area lights in cinematic lighting. The method is an extension of traditional shadow maps, so it has the advantage of image based shadow methods; the algorithm s complexity ...

    • Using Photographs to Enhance Videos of a Static Scene 

      Bhat, Pravin; Zitnick, C. Lawrence; Snavely, Noah; Agarwala, Aseem; Agrawala, Maneesh; Cohen, Michael; Curless, Brian; Kang, Sing Bing (The Eurographics Association, 2007)
      We present a framework for automatically enhancing videos of a static scene using a few photographs of the same scene. For example, our system can transfer photographic qualities such as high resolution, high dynamic range ...

    • Whitted Ray-Tracing for Dynamic Scenes using a Ray-Space Hierarchy on the GPU 

      Roger, David; Assarsson, Ulf; Holzschuch, Nicolas (The Eurographics Association, 2007)
      In this paper, we present a new algorithm for interactive rendering of animated scenes with Whitted Ray-Tracing, running on the GPU. We focus our attention on the secondary rays (the rays generated by one or more bounces ...