VANLO - Interactive visual exploration of aligned biological networks (2009)
Brasch, Steffen, Linsen, Lars, Fuellen, Georg
Abstract Background Protein-protein interaction (PPI) is fundamental to many biological processes. In the course of evolution, biological networks such as protein-protein interaction networks have...
Lars Linsen, Hartmut Prautzsch
Free form surfaces are commonly represented by triangular or quadrilateral meshes. Often these meshes are obtained from unorganized point sets sampled from some object’s surface. We show that local...
Jaya Sreevalsan-nair, Lars Linsen, Bernd Hamann
“Dual contouring ” approaches provide an alternative to standard Marching Cubes (MC) method to extract and approximate an isosurface from trivariate data given on a volumetric mesh. These dual...
Abstract Tree Growth Visualization (2009)
Lars Linsen, Brian J. Karis, E. Gregory, Mcpherson Bernd Hamann
In computer graphics, models describing the fractal branching structure of trees typically exploit the modularity of tree structures. The models are based on local production rules, which are applied...
Structure-accentuating Dense Flow Visualization (2008)
Thomas Ertl, Ken Joy, Beatriz Santos (editors, Sung W. Park, Hongfeng Yu, Ingrid Hotz, ...
Vector field visualization approaches can broadly be categorized into approaches that directly visualize local or integrated flow and approaches that analyze the topological structure and visualize...
Direct Surface Extraction from Smoothed Particle Hydrodynamics Simulation Data (2008)
Paul Rosenthal, Stephan Rosswog, Lars Linsen
Smoothed particle hydrodynamics is a completely mesh-free method to simulate fluid flow. Rather than representing the physical variables on a fixed grid, the fluid is represented by freely moving...
Index Terms — Scattered Data Interpolation, Natural-Neighbor (2008)
Sung W. Park, Lars Linsen, Oliver Kreylos, John D. Owens, Bernd Hamann, A (b, ...
Abstract — Natural-neighbor interpolation methods, such as Sibson’s method, are well-known schemes for multivariate data fitting and reconstruction. Despite its many desirable properties,...
Metasurfaces: Contouring with Changing Isovalue (2008)
Nicholas M. Matyas, Lars Linsen, Bernd Hamann
Isosurface extraction is a standard method for volume data exploration, where a surface is extracted according to a chosen isovalue of some trivariate function. Automated isovalue-selection...
Structure-accentuating Dense Flow Visualization (2008)
Thomas Ertl, Ken Joy, Beatriz Santos (editors, Sung W. Park, Hongfeng Yu, Ingrid Hotz, ...
Vector field visualization approaches can broadly be categorized into approaches that directly visualize local or integrated flow and approaches that analyze the topological structure and visualize...
Inverse modeling and animation of growing single-stemmed trees at interactive rates (2008)
Steffen Rudnick, Lars Linsen, E. Gregory Mcpherson
For city planning purposes, animations of growing trees of several species can be used to deduce which species may best fit a particular environment. The models used for the animation must conform to...
An Interactive Visual Exploration Tool for Northern California’s Water Monitoring Network (2008)
Jaya Sreevalsan-nair, Erwin Van, Nieuwenhuyse Ingrid Hotz, Lars Linsen, Bernd Hamann
The water monitoring network in Northern California provides us with an integrated flow and water-quality dataset of the Sacramento-San Joaquin Delta, the reservoirs, and the two main rivers feeding...
Structure-accentuating Dense Flow Visualization (2008)
Thomas Ertl, Ken Joy, Beatriz Santos (editors, Sung W. Park, Hongfeng Yu, Ingrid Hotz, ...
Vector field visualization approaches can broadly be categorized into approaches that directly visualize local or integrated flow and approaches that analyze the topological structure and visualize...
Direct Isosurface Extraction from Scattered Volume Data Abstract (2008)
Thomas Ertl, Ken Joy, Beatriz Santos (editors, Paul Rosenthal, Lars Linsen
Isosurface extraction is a standard visualization method for scalar volume data and has been subject to research for decades. Nevertheless, to our knowledge, no isosurface extraction method exists...
Inverse modeling and animation of growing single-stemmed trees at interactive rates (2008)
Steffen Rudnick, Lars Linsen, E. Gregory Mcpherson
For city planning purposes, animations of growing trees of several species can be used to deduce which species may best fit a particular environment. The models used for the animation must conform to...
USING RAY INTERSECTION FOR DUAL ISOSURFACING (2008)
Jaya Sreevalsan-nair, Lars Linsen, Bernd Hamann
Abstract: Isosurface extraction using “dual contouring ” approaches have been developed to generate a surface that is “dual ” in terms of the underlying extraction procedure used when...
Index Terms — Scattered Data Interpolation, Natural-Neighbor (2008)
Sung W. Park, Lars Linsen, Oliver Kreylos, John D. Owens, Bernd Hamann, A (b, ...
Abstract — Natural-neighbor interpolation methods, such as Sibson’s method, are well-known schemes for multivariate data fitting and reconstruction. Despite its many desirable properties,...
Visual Analysis of Gel-free Proteome Data (2008)
Lars Linsen, Julia Löcherbach, Matthias Berth, Dörte Becher, Jörg Bernhardt
Abstract — We present a visual exploration system supporting protein analysis when using gel-free data acquisition methods. The data to be analyzed is obtained by coupling liquid chromatography...
Netbased Modelling, Lars Linsen
Given objects in boundary representation, i.e. piecewise polynomial surfaces, modelling operations such as union, intersection, and difference, as well as trimming and rounding off for objects of...
Lars Linsen, Hartmut Prautzsch
Free form surfaces are commonly represented by triangular or quadrilateral meshes. Often these meshes are obtained from unorganized point sets sampled from some object's surface. We show that...
Point cloud representation. (2007)
Reconstructing a surface out of a three-dimensional set of points, which is obtained by sampling an object's boundary, is done by generating an arbitrary triangular mesh. Our approach is to obviate...
Topologically Accurate Dual Isosurfacing Using Ray Intersection (2007)
Jaya Sreevalsan-Nair, Lars Linsen, Bernd Hamann
“Dual contouring” approaches provide an alternative to standard Marching Cubes (MC) method to extract and approximate an isosurface from trivariate data given on a volumetric mesh. These dual...
Topologically Accurate Dual Isosurfacing Using Ray Intersection (2006)
Sreevalsan-Nair, Jaya, Linsen, Lars, Hamann, Bernd
“Dual contouring” approaches provide an alternative to standard Marching Cubes (MC) method to extract and approximate an isosurface from trivariate data given on a volumetric mesh. These dual...
Discrete Sibson interpolation (2006)
Park, Sung W, Linsen, Lars, Kreylos, Oliver, Owens, John D, Hamann, Bernd Hamann
Natural-neighbor interpolation methods, such as Sibson's method, are well-known schemes for multivariate data fitting and reconstruction. Despite its many desirable properties, Sibson's method is...
Brain Mapping Using Topology Graphs Obtained by Surface Segmentation (2005)
Fabien Vivodtzev, Lars Linsen, Bernd Hamann, Kenneth I. Joy, Bruno A. Olshausen
Introduction Annotating brains is a tedious and time-consuming process and can typically only be performed by an expert. A way to alleviate and accelerate the process is to take an already existing...
Multiple Transparent Material-enriched Isosurfaces (2005)
Ravindra Kanodia Lars, Lars Linsen, Bernd Hamann
Isosurface extraction is a standard method for visualizing scalar volume data that can be used to render a specific material boundaries inherent in multi-material data sets. Multiple transparent...
EUROGRAPHICS - IEEE VGTC Symposium on Visualization (2005) (2005)
Brodlie Duke Joy, K. W. Brodlie, D. J. Duke, Sung W. Park, Brian Budge, ...
We present a flow visualization technique based on rendering geometry in a dense, uniform distribution. Flow is integrated using particle advection. By adopting ideas from texture-based techniques...
A Framework for Real-time Volume Visualization of Streaming Scattered Data (2005)
Sung W. Park, Lars Linsen, Oliver Kreylos, John D. Owens, Bernd Hamann
Visualization of scattered data over a volumetric spatial domain is often done by reconstructing a trivariate function on some grid using scattered data interpolation methods and visualizing the...
Metasurfaces: Contouring with Changing Isovalue (2005)
Nicholas M. Matyas, Lars Linsen, Bernd Hamann
Isosurface extraction is a standard method for volume data exploration, where a surface is extracted according to a chosen isovalue of some trivariate function. Automated isovalue-selection...
A Framework for Real-time Volume Visualization of (2005)
Streaming Scattered Data, Sung W. Park, Lars Linsen, Oliver Kreylos, John D. Owens, Bernd Hamann
Scattered data reconstruction algorithms are often computationally expensive and difficult to implement. In order to visualize streaming scattered data, efficient approaches to scattered data...
Lars Linsen, Julia Löcherbach, Matthias Berth, Jörg Bernhardt, Dörte Becher
region of interest. Differential protein expression analysis is one of the main challenges in proteomics. It denotes the search for proteins, whose encoding genes are differentially expressed under a...
Multi-dimensional Transfer Functions for Interactive 3D Flow Visualization (2004)
Sung W. Park, Brian Budge, Lars Linsen, Bernd Hamann, Kenneth I. Joy
Transfer functions are a standard technique used in volume rendering to assign color and opacity to a volume of a scalar field. Multi-dimensional transfer functions (MDTFs) have proven to be an...
I.: Multi-dimensional transfer functions for interactive 3d flow visualization (2004)
Sung W. Park, Brian Budge, Lars Linsen, Bernd Hamann, Kenneth I. Joy
Transfer functions are a standard technique used in volume rendering to assign color and opacity to a volume of a scalar field. Multi-dimensional transfer functions (MDTFs) have proven to be an...
Hierarchical Isosurface Segmentation Based on Discrete Curvature (2003)
Fabien Vivodtzev, Lars Linsen, Georges-Pierre Bonneau, Bernd Hamann, Kenneth I. Joy, Bruno A. Olshausen
A high-level approach to describe the characteristics of a surface is to segment it into regions of uniform curvature behavior and construct an abstract representation given by a (topology) graph. We...
Adaptive Multi-valued Volume Data Visualization Using Data-dependent Error Metrics (2003)
Jevan T. Gray, Lars Linsen, Bernd Hamann, Kenneth I. Joy
Adaptive, and especially view-dependent, volume visualization is used to display large volume data at interactive frame rates preserving high visual quality in specified or implied regions of...
Hierarchical Visualization of Large-scale Unstructured Hexahedral Volume Data (2003)
Jaya Sreevalsan-nair, Lars Linsen, Benjamin A. Ahlborn, Michael S. Green, Bernd Hamann
Multi-block unstructured hexahedral grids are widely used in numerical simulations, but they cause various problems for data visualization due to the hangingnode problem. We present a...
Hierarchical isosurface segmentation based on discrete curvature (2003)
Fabien Vivodtzev, Lars Linsen, Georges-pierre Bonneau, Bernd Hamann, Kenneth I. Joy, Bruno A. Olshausen
A high-level approach to describe the characteristics of a surface is to segment it into regions of uniform curvature behavior and construct an abstract representation given by a (topology) graph. We...
Lars Linsen, Valerio Pascucci, Mark A. Duchaineau, Bernd Hamann, Kenneth I. Joy, ...
levels of detail are widely used for large-scale two- and three-dimensional data sets. We present a four-dimensional multiresolution approach for time-varying volume data. This approach supports a...
Oberflächenrepräsentation durch Punktwolken / (2001)
Zugl.: Karlsruhe, Universiẗat, Diss., 2001.
Point cloud representation (2001)
Reconstructing a surface out of a three-dimensional set of points, which is obtained by sampling an object's boundary, is done by generating an arbitrary triangular mesh. Our approach is to...
Local versus global triangulations (2001)
Lars Linsen, Hartmut Prautzsch
Free form surfaces are commonly represented by triangular or quadrilateral meshes. Often these meshes are obtained from unorganized point sets sampled from some object's surface. We show that...