Browsing 27-Issue 2 by Title
Now showing items 21-40 of 59
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Fast Force Field Approximation and its Application to Skeletonization of Discrete 3D Objects
(The Eurographics Association and Blackwell Publishing Ltd, 2008)In this paper we present a novel method to approximate the force field of a discrete 3d object with a time complexity that is linear in the number of voxels. We define a rule, similar to the distance transform, to propagate ... -
A Fast Simulation Method Using Overlapping Grids for Interactions between Smoke and Rigid Objects
(The Eurographics Association and Blackwell Publishing Ltd, 2008)Recently, many techniques using computational fluid dynamics have been proposed for the simulation of natural phenomena such as smoke and fire. Traditionally, a single grid is used for computing the motion of fluids. When ... -
Floating Textures
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present a novel multi-view, projective texture mapping technique. While previous multi-view texturing approaches lead to blurring and ghosting artefacts if 3D geometry and/or camera calibration are imprecise, we propose ... -
Fluid in Video: Augmenting Real Video with Simulated Fluids
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present a technique for coupling simulated fluid phenomena that interact with real dynamic scenes captured as a binocular video sequence. We first process the binocular video sequence to obtain a complete 3D reconstruction ... -
Frontmatter
(The Eurographics Association and Blackwell Publishing Ltd, 2008) -
GPU Accelerated Direct Volume Rendering on an Interactive Light Field Display
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present a GPU accelerated volume ray casting system interactively driving a multi-user light field display. The display, driven by a single programmable GPU, is based on a specially arranged array of projectors and a ... -
GPU-based Fast Ray Casting for a Large Number of Metaballs
(The Eurographics Association and Blackwell Publishing Ltd, 2008)Metaballs are implicit surfaces widely used to model curved objects, represented by the isosurface of a density field defined by a set of points. Recently, the results of particle-based simulations have been often visualized ... -
Hardware-Accelerated, High-Quality Rendering Based on Trivariate Splines Approximating Volume Data
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We develop an approach for hardware-accelerated, high-quality rendering of volume data using trivariate splines. The proposed quasi-interpolating schemes are realtime reconstructions. The low total degrees provide several ... -
High-Resolution Volumetric Computation of Offset Surfaces with Feature Preservation
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present a new algorithm for the efficient and reliable generation of offset surfaces for polygonal meshes. The algorithm is robust with respect to degenerate configurations and computes (self-)intersection free offsets ... -
Higher Order Barycentric Coordinates
(The Eurographics Association and Blackwell Publishing Ltd, 2008)In recent years, a wide range of generalized barycentric coordinates has been suggested. However, all of them lack control over derivatives. We show how the notion of barycentric coordinates can be extended to specify ... -
Image-based Aging Using Evolutionary Computing
(The Eurographics Association and Blackwell Publishing Ltd, 2008)Aging has considerable visual effects on the human face and is difficult to simulate using a universally-applicable global model. In this paper, we focus on the hypothesis that the patterns of age progression (and regression) ... -
Image-based Material Weathering
(The Eurographics Association and Blackwell Publishing Ltd, 2008)The appearance manifold [WTL*06] is an efficient approach for modeling and editing time-variant appearance of materials from the BRDF data captured at single time instance. However, this method is difficult to apply in ... -
Image-based Shaving
(The Eurographics Association and Blackwell Publishing Ltd, 2008)Many categories of objects, such as human faces, can be naturally viewed as a composition of several different layers. For example, a bearded face with glasses can be decomposed into three layers: a layer for glasses, a ... -
Interactive Volume Rendering with Dynamic Ambient Occlusion and Color Bleeding
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We propose a method for rendering volumetric data sets at interactive frame rates while supporting dynamic ambient occlusion as well as an approximation to color bleeding. In contrast to ambient occlusion approaches for ... -
Lighting and Occlusion in a Wave-Based Framework
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present novel methods to enhance Computer Generated Holography (CGH) by introducing a complex-valued wave-based occlusion handling method. This offers a very intuitive and efficient interface to introduce optical elements ... -
Manifold-valued Thin-Plate Splines with Applications in Computer Graphics
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present a generalization of thin-plate splines for interpolation and approximation of manifold-valued data, and demonstrate its usefulness in computer graphics with several applications from different fields. The ... -
Modeling a Generic Tone-mapping Operator
(The Eurographics Association and Blackwell Publishing Ltd, 2008)Although several new tone-mapping operators are proposed each year, there is no reliable method to validate their performance or to tell how different they are from one another. In order to analyze and understand the ... -
Photo-realistic Rendering of Metallic Car Paint from Image-Based Measurements
(The Eurographics Association and Blackwell Publishing Ltd, 2008)State-of-the-art car paint shows not only interesting and subtle angular dependency but also significant spatial variation. Especially in sunlight these variations remain visible even for distances up to a few meters and ... -
Practical Product Importance Sampling for Direct Illumination
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We present a practical algorithm for sampling the product of environment map lighting and surface reflectance. Our method builds on wavelet-based importance sampling, but has a number of important advantages over previous ... -
Ray Casting Algebraic Surfaces using the Frustum Form
(The Eurographics Association and Blackwell Publishing Ltd, 2008)We propose an algorithm for interactive ray-casting of algebraic surfaces of high degree. A key point of our approach is a polynomial form adapted to the view frustum. This so called frustum form yields simple expressions ...