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Koiter's Thin Shells on Catmull-Clark Limit Surfaces
(The Eurographics Association, 2011)
We present a discretization of Koiter's model of elastic thin shells based on a finite element that employs limit surfaces of Catmull Clark's subdivision scheme. The discretization can directly be applied to control grids ...
Assessment of Time-of-Flight Cameras for Short Camera-Object Distances
(The Eurographics Association, 2011)
In this paper we have compared Time-of-Flight cameras of different vendors at object-camera distances of 500 mm, 1500 mm and 2500 mm. The aim was to find the highest possible precision at the distance of 500 mm, to estimate ...
The Recognition of Ethnic Groups based on Histological Skin Properties
(The Eurographics Association, 2011)
We present an algorithm to recognize ethnic groups based on biologically justified features, such as melanin or hemoglobin concentrations. These biophysical features are extracted from skin reflectance spectra and allow, ...
Bent Normals and Cones in Screen-space
(The Eurographics Association, 2011)
Ambient occlusion (AO) is a popular technique for real-time as well as offline rendering. One of its benefits is a gain in efficiency due to the fact that occlusion and shading are decoupled which results in an average ...
A View-Dependent and Inter-Frame Coherent Visualization of Integral Lines using Screen Contribution
(The Eurographics Association, 2011)
In vector field visualization, integral lines like stream, path, or streak lines are often used to examine the behavior of steady and unsteady flows. In 3D, however, visualizing integral lines is problematic since the ...
A Clustering-based Visualization Technique to Emphasize Meaningful Regions of Vector Fields
(The Eurographics Association, 2011)
This paper proposes a vector field visualization approach that extracts and visualizes grouped regions of static 3D vector fields of similar curvature behavior. These regions are argued to ease the recognition of regions ...
Seamless Integration of Multimodal Shader Compositing into a Flexible Ray Casting Pipeline
(The Eurographics Association, 2011)
In the last three years a number of multi-volume GPU ray casting systems have been presented. Some of them are very powerful and provide a wide variety of features. However, these approaches are either only capable of ...
Is it Necessary to Model the Matrix Degrading Enzymes for Simulating Tumour Growth?
(The Eurographics Association, 2011)
We propose a hybrid continuum discrete model to simulate tumour growth on a microscopic scale. The lattice based spatio temporal model consists of reaction diffusion equations that describe interactions between cancer ...
Measuring BRDFs of Immersed Materials
(The Eurographics Association, 2011)
We investigate the effect of immersing real-world materials into media of different refractive indices. We show, that only some materials follow the Fresnel-governed behaviour. In reality, many materials exhibit unexpected ...
Extracting Flow Structures Using Sparse Particles
(The Eurographics Association, 2011)
In recent years, Lagrangian Coherent Structures (LCS) have been characterized using the Finite-Time Lyapunov Exponent, following the advection of a dense set of particles into a corresponding flow field. The large amount ...