Browsing EG2008 by Title
Now showing items 1-20 of 117
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Accurate Shadows by Depth Complexity Sampling
(The Eurographics Association and Blackwell Publishing Ltd, 2008)The accurate generation of soft shadows is a particularly computationally intensive task. In order to reduce rendering time, most real-time and offline applications decorrelate the generation of shadows from the computation ... -
An Adaptive Contact Model for the Robust Simulation of Knots
(The Eurographics Association and Blackwell Publishing Ltd, 2008)In this paper, we present an adaptive model for dynamically deforming hyper-elastic rods. In contrast to existing approaches, adaptively introduced control points are not governed by geometric subdivision rules. Instead, ... -
Adaptive Remeshing of Non-Manifold Surfaces
(The Eurographics Association, 2008)We present a unified approach for consistent remeshing of arbitrary non-manifold triangle meshes with additional user-defined feature lines, which together form a feature skeleton. Our method is based on local operations ... -
Advanced Algorithms in Medical Computer Graphics
(The Eurographics Association, 2008)Advanced algorithms and efficient visualization techniques are of major importance in intra-operative imaging and image-guided surgery. The surgical environment is characterized by a high information flow and fast decisions, ... -
Advanced Material Appearance Models
(The Eurographics Association, 2008)This tutorial will cover the foundational elements of advanced material appearance models. For many years appearance models in computer graphics focused on general models for reflectance functions coupled with texture maps. ... -
Agile Spectrum Imaging: Programmable Wavelength Modulation for Cameras and Projectors
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We advocate the use of quickly-adjustable, computer-controlled color spectra in photography, lighting and displays. We present an optical relay system that allows mechanical or electronic color spectrum control and use it ... -
Apparent Greyscale: A Simple and Fast Conversion to Perceptually Accurate Images and Video
(The Eurographics Association and Blackwell Publishing Ltd, 2008)This paper presents a quick and simple method for converting complex images and video to perceptually accurate greyscale versions. We use a two-step approach first to globally assign grey values and determine colour ordering, ... -
Articulated Object Reconstruction and Markerless Motion Capture from Depth Video
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present an algorithm for acquiring the 3D surface geometry and motion of a dynamic piecewise-rigid object using a single depth video camera. The algorithm identifies and tracks the rigid components in each frame, while ... -
Artificial Mosaics by Gradient Vector Flow
(The Eurographics Association, 2008)In this paper a novel approach for artificial mosaic generation is proposed. Gradient Vector Flow computation together with heuristics to maximise the covered mosaic area are used. The high frequency details are managed ... -
Augmented Panoramic Video
(The Eurographics Association and Blackwell Publishing Ltd, 2008)Many video sequences consist of a locally dynamic background containing moving foreground subjects. In this paper we propose a novel way of re-displaying these sequences, by giving the user control over a virtual camera ... -
Automatic Conversion of Mesh Animations into Skeleton-based Animations
(The Eurographics Association and Blackwell Publishing Ltd, 2008)Recently, it has become increasingly popular to represent animations not by means of a classical skeleton-based model, but in the form of deforming mesh sequences. The reason for this new trend is that novel mesh deformation ... -
The Beam Radiance Estimate for Volumetric Photon Mapping
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present a new method for efficiently simulating the scattering of light within participating media. Using a theoretical reformulation of volumetric photon mapping, we develop a novel photon gathering technique for ... -
Boolean Operations for Free-form Models Represented in Geometry Images
(The Eurographics Association, 2008)We present a Boolean operation algorithm for free-form solid models represented in geometry images. By taking advantage of the regular data organization of geometry images, our algorithm can perform efficient surface ... -
Characterization for High Dynamic Range Imaging
(The Eurographics Association and Blackwell Publishing Ltd, 2008)In this paper we present a new practical camera characterization technique to improve color accuracy in high dynamic range (HDR) imaging. Camera characterization refers to the process of mapping device-dependent signals, ... -
CHC++: Coherent Hierarchical Culling Revisited
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present a new algorithm for efficient occlusion culling using hardware occlusion queries. The algorithm significantly improves on previous techniques by making better use of temporal and spatial coherence of visibility. ... -
Compensation of the Light Attenuation with Depth of Images Captured by a Confocal Microscope Using a MRF Deformation Model and Graph Cuts
(The Eurographics Association, 2008)We study series of fluorescent optical sections, i.e. three-dimensional (3D) biomedical images, captured by a confocal laser scanning microscope (CLSM). Fluorescent image intensities of optical sections from deep layers ... -
Computer Graphics Curriculum: a Programming Approach
(The Eurographics Association, 2008)At University Paris 8 the computer science curriculum is focused on programming as a good technique to improve the skills of students and to improve the success of studies. It has been reinforced when France adopted the ... -
Computer Graphics: Problem Based Learning and Interactive Embodied Pedagogical Agents
(The Eurographics Association, 2008)This paper focuses on the use of new tools in order to improve the learning of Computer Graphics, in particular of some aspects that have been detected as specially difficult by the students. Within this context, this paper ... -
Conformal Flattening by Curvature Prescription and Metric Scaling
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present an efficient method to conformally parameterize 3D mesh data sets to the plane. The idea behind our method is to concentrate all the 3D curvature at a small number of select mesh vertices, called cone singularities, ... -
Contact Skinning
(The Eurographics Association, 2008)In this paper, we propose a new approach to model interactions through a skinning method. Skinning is a frequently used technique to animate a mesh based on skeleton motion. In the case of a hand motion sequence used to ...