Browsing Volume 27 (2008) by Title
Now showing items 45-64 of 240
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Deep Opacity Maps
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present a new method for rapidly computing shadows from semi-transparent objects like hair. Our deep opacity maps method extends the concept of opacity shadow maps by using a depth map to obtain a per pixel distribution ... -
Deformation-Driven Shape Correspondence
(The Eurographics Association and Blackwell Publishing Ltd, 2008)Non-rigid 3D shape correspondence is a fundamental and difficult problem. Most applications which require a correspondence rely on manually selected markers. Without user assistance, the performances of existing automatic ... -
Density Displays for Data Stream Monitoring
(The Eurographics Association and Blackwell Publishing Ltd., 2008)In many business applications, large data workloads such as sales figures or process performance measures need to be monitored in real-time. The data analysts want to catch problems in flight to reveal the root cause of ... -
Dental Inlay and Onlay Construction by Iterative Laplacian Surface Editing
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We propose a new method for automatic construction of inlays and onlays. Mesh models from a small tooth library are adapted to the remaining healthy surface of the patient s tooth. In the area above the cavity, the general ... -
Detail-In-Context Visualization for Satellite Imagery
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We use the complex logarithm as a transformation for the visualization and navigation of highly complex satellite and aerial imagery. The resulting depictions show details and context with greatly different scales in one ... -
Diffusion Based Photon Mapping
(The Eurographics Association and Blackwell Publishing Ltd, 2008)Density estimation employed in multi-pass global illumination algorithms give cause to a trade-off problem between bias and noise. The problem is seen most evident as blurring of strong illumination features. In particular, ... -
Discrete Distortion in Triangulated 3-Manifolds
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We introduce a novel notion, that we call discrete distortion, for a triangulated 3-manifold. Discrete distortion naturally generalizes the notion of concentrated curvature defined for triangulated surfaces and provides a ... -
Discrete Multi-Material Interface Reconstruction for Volume Fraction Data
(The Eurographics Association and Blackwell Publishing Ltd., 2008)We present the results from a user study looking at the ability of observers to mentally integrate wind direction and magnitude over a vector field. The data set chosen for the study is an MM5 (PSU/NCAR Mesoscale Model) ... -
Displacement Mapping on the GPU - State of the Art
(The Eurographics Association and Blackwell Publishing Ltd, 2008)This paper reviews the latest developments of displacement mapping algorithms implemented on the vertex, geometry, and fragment shaders of graphics cards. Displacement mapping algorithms are classified as per-vertex and ... -
Distortion Optimization based Image Completion from a Large Displacement View
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present a new image completion method based on an additional large displacement view (LDV) of the same scene for faithfully repairing large missing regions on the target image in an automatic way. A coarse-to-fine ... -
Distortion-Free Steganography for Polygonal Meshes
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present a technique for steganography in polygonal meshes. Our method hides a message in the indexed rep-resentation of a mesh by permuting the order in which faces and vertices are stored. The permutation is relative ... -
Distributed Texture Memory in a Multi-GPU Environment
(The Eurographics Association and Blackwell Publishing Ltd, 2008)In this work, we demonstrate a system that allows texture memory on multiple graphics processing unit (GPUs) to be virtualized in a manner that is both scalable and transparent to the programmer. Our system is built using ... -
A Dynamic Model of Cracks Development Based on a 3D Discrete Shrinkage Volume Propagation
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We attempt to model and visualize the main characteristics of cracks produced on the surface of a desiccating crusted soil: their patterns, their different widths and depths and their dynamics of creation and evolution. ... -
Dynamic Sampling and Rendering of Algebraic Point Set Surfaces
(The Eurographics Association and Blackwell Publishing Ltd, 2008)Algebraic Point Set Surfaces (APSS) define a smooth surface from a set of points using local moving least-squares (MLS) fitting of algebraic spheres. In this paper we first revisit the spherical fitting problem and provide ... -
Effect of Character Animacy and Preparatory Motion on Perceptual Magnitude of Errors in Ballistic Motion
(The Eurographics Association and Blackwell Publishing Ltd, 2008)An increasing number of projects have examined the perceptual magnitude of visible artifacts in animated motion. These studies have been performed using a mix of character types, from detailed human models to abstract ... -
Efficient and Dynamic Simplification of Line Drawings
(The Eurographics Association and Blackwell Publishing Ltd, 2008)In this paper we present a pipeline for rendering dynamic 2D/3D line drawings efficiently. Our main goal is to create efficient static renditions and coherent animations of line drawings in a setting where lines can be ... -
Efficient CPU-based Volume Ray Tracing Techniques
(The Eurographics Association and Blackwell Publishing Ltd, 2008)Recent research on high-performance ray tracing has achieved real-time performance even for highly complex surface models already on a single PC. In this report, we provide an overview of techniques for extending real-time ... -
Enhancement of Bright Video Features for HDR Displays
(The Eurographics Association and Blackwell Publishing Ltd, 2008)To utilize the full potential of new high dynamic range (HDR) displays, a system for the enhancement of bright luminous objects in video sequences is proposed. The system classifies clipped (saturated) regions as lights, ... -
Evaluation of Illustration-inspired Techniques for Time-varying Data Visualization
(The Eurographics Association and Blackwell Publishing Ltd., 2008)Illustration-inspired techniques have provided alternative ways to visualize time-varying data. Techniques such as speedlines, flow ribbons, strobe silhouettes and opacity-based techniques provide temporal context to the ... -
Exaggerating Character Motions Using Sub-Joint Hierarchy
(The Eurographics Association and Blackwell Publishing Ltd, 2008)Motion capture cannot generate cartoon-style animation directly. We emulate the rubber-like exaggerations common in traditional character animation as a means of converting motion capture data into cartoon-like movement. ...