Split (1)

train · 6.09k rows

Conference stringclasses 6 values	Year int64 1.99k 2.03k	Title stringlengths 8 187	DOI stringlengths 16 32	Abstract stringlengths 128 7.15k ⌀	Accessible bool 2 classes	Early bool 2 classes	AuthorNames-Deduped listlengths 1 24	Award listlengths 0 2	Resources listlengths 0 5	ResourceLinks listlengths 0 10
EuroVis	2,004	Efficient Display of Background Objects for Virtual Endoscopy using Flexible First-Hit Ray Casting	10.2312/VisSym/VisSym04/301-310	Many applications of virtual endoscopy require the display of background objects behind the semi-transparent surface of the investigated organ. This paper deals with pre-processing and visualization of background objects for virtual endoscopy. A new first-hit ray casting technique for efficient perspective iso-surfacin...	false	false	[ "André Neubauer 0002", "Marie-Thérèse Forster", "Rainer Wegenkittl", "Lukas Mroz", "Katja Bühler" ]	[]	[]	[]
EuroVis	2,004	Efficient Isosurface Tracking Using Precomputed Correspondence Table	10.2312/VisSym/VisSym04/283-292	Feature tracking is a useful method for visualizing and analyzing time-varying scalar fields. It allows scientists to focus on regions of interest and track their evolution and interaction over time. To allow the user to freely explore the data set, features must be tracked in an efficient manner. In this paper, we pre...	false	false	[ "Guangfeng Ji", "Han-Wei Shen" ]	[]	[]	[]
EuroVis	2,004	Generalized Distance Transforms and Skeletons in Graphics Hardware	10.2312/VisSym/VisSym04/221-230	We present a framework for computing generalized distance transforms and skeletons of two-dimensional objects using graphics hardware. Our method is based on the concept of footprint splatting. Combining different splats produces weighted distance transforms for different metrics, as well as the corresponding skeletons...	false	false	[ "Robert Strzodka", "Alexandru C. Telea" ]	[]	[]	[]
EuroVis	2,004	Graph Drawing by Subspace Optimization	10.2312/VisSym/VisSym04/065-074	We show a novel approach for accelerating the computation of graph drawing algorithms. The method is based on the notion that we can find a subspace with a relatively low dimensionality that captures the "nice" layouts of the graph. This way each axis of the drawing is a linear combination of a few basis vectors, inste...	false	false	[ "Yehuda Koren" ]	[]	[]	[]
EuroVis	2,004	High-Quality Lighting for Pre-Integrated Volume Rendering	10.2312/VisSym/VisSym04/025-034	Pre-integrated volume rendering is an effective technique for generating high-quality visualizations. The precomputed lookup tables used by this method are slow to compute and can not include truly pre-integrated lighting due to space constraints. The lighting for pre-integrated rendering is therefore subject to the sa...	false	false	[ "Eric B. Lum", "Brett Wilson", "Kwan-Liu Ma" ]	[]	[]	[]
EuroVis	2,004	Illustrating Surfaces in Volume	10.2312/VisSym/VisSym04/009-016	This paper presents a novel framework for illustrating surfaces in a volume. Surfaces are illustrated by drawing only feature lines, such as silhouettes, valleys, ridges, and surface hatching strokes, and are embedded in volume renderings. This framework promises effective illustration of both surfaces and volumes with...	false	false	[ "Xiaoru Yuan", "Baoquan Chen" ]	[]	[]	[]
EuroVis	2,004	Interaction Spaces in Data and Information Visualization	10.2312/VisSym/VisSym04/137-146	User interaction plays an integral part in the effective visualization of data and information. Typical interaction operations include navigation, selection, and distortion. A problem that can occur when these operations are speci£ed using direct manipulation is determining which object or space is the focus of the int...	false	false	[ "Matthew O. Ward", "Jing Yang 0001" ]	[]	[]	[]
EuroVis	2,004	Interactive High Quality Trimmed NURBS Visualization Using Appearance Preserving Tessellation	10.2312/VisSym/VisSym04/211-220	Trimmed NURBS models are the standard representation used in CAD/CAM systems and accurate visualization of large trimmed NURBS models at interactive frame rates is of great interest for industry. To visualize the quality of a surface several techniques like isophotes, reflection lines, etc. are used. Most existing appr...	false	false	[ "Michael Guthe", "Ákos Balázs", "Reinhard Klein" ]	[]	[]	[]
EuroVis	2,004	Interactive Treemaps With Detail on Demand to Support Information Search in Documents	10.2312/VisSym/VisSym04/121-128	This paper addresses the issue of how information visualization techniques can be used to assist full-text search in electronic documents. Our approach supports multiple term queries with interactive treemaps. We use a treemap to visualize the basic structure of the document and exploit color coding to show the distrib...	false	false	[ "Stefan Schlechtweg", "Petra Schulze-Wollgast", "Heidrun Schumann" ]	[]	[]	[]
EuroVis	2,004	Interactively Visualizing Procedurally Encoded Scalar Fields	10.2312/VisSym/VisSym04/035-044	While interactive visualization of rectilinear gridded volume data sets can now be accomplished using texture mapping hardware on commodity PCs, interactive rendering and exploration of large scattered or unstructured data sets is still a challenging problem. We have developed a new approach that allows the interactive...	false	false	[ "Yun Jang", "Manfred Weiler", "Matthias Hopf", "Jingshu Huang", "David S. Ebert", "Kelly P. Gaither", "Thomas Ertl" ]	[]	[]	[]
EuroVis	2,004	Isosurface Computation Made Simple	10.2312/VisSym/VisSym04/293-300	This paper presents a simple approach for rendering isosurfaces of a scalar field. Using the vertex programming capability of commodity graphics cards, we transfer the cost of computing an isosurface from the Central Processing Unit (CPU), running the main application, to the Graphics Processing Unit (GPU), rendering t...	false	false	[ "Valerio Pascucci" ]	[]	[]	[]
EuroVis	2,004	Medical Applications of Multi-field Volume Rendering and VR Techniques	10.2312/VisSym/VisSym04/249-254	This paper reports on a new approach for visualizing multi-field MRI or CT datasets in an immersive environment with medical applications. Multi-field datasets combine multiple scanning modalities into a single 3D, multivalued, dataset. In our approach, they are classified and rendered using real-time hardware accelera...	false	false	[ "Joe Kniss", "Jürgen P. Schulze", "Uwe Wössner", "Peter Winkler 0004", "Ulrich Lang 0002", "Charles D. Hansen" ]	[]	[]	[]
EuroVis	2,004	Meshless Isosurface Generation from Multiblock Data	10.2312/VisSym/VisSym04/273-282	We propose a meshless method for the extraction of high-quality continuous isosurfaces from volumetric data represented by multiple grids, also called "multiblock" data sets. Multiblock data sets are commonplace in computational mechanics applications. Relatively little research has been performed on contouring multibl...	false	false	[ "Christopher S. Co", "Serban D. Porumbescu", "Kenneth I. Joy" ]	[]	[]	[]
EuroVis	2,004	Occlusion Culling for Sub-Surface Models in Geo-Scientific Applications	10.2312/VisSym/VisSym04/267-272	Modern graphics cards support occlusion culling in hardware. We present a three pass algorithm, which makes efficient use of this feature. Our geo-scientific sub-surface data sets consist typically of a set of high resolution height fields, polygonal objects, and volume slices and lenses. For each height field, we comp...	false	false	[ "John Plate", "Anselm Grundhöfer", "Benjamin Schmidt", "Bernd Fröhlich 0001" ]	[]	[]	[]
EuroVis	2,004	Ray Casting Curved-Quadratic Elements	10.2312/VisSym/VisSym04/201-210	We present a method for ray casting curved-quadratic elements in 3D. The advantages of this approach is that a curved element can be directly visualized. Conventionally, higher-order elements are tessellated with several linear elements so that standard visualization techniques can be applied to the linear elements. Ou...	false	false	[ "David F. Wiley", "Henry R. Childs", "Bernd Hamann", "Kenneth I. Joy" ]	[]	[]	[]
EuroVis	2,004	Shape-Embedded-Histograms for Visual Data Mining	10.2312/VisSym/VisSym04/055-064	Scatterplots are widely used in exploratory data analysis and class visualization. The advantages of scatterplots are that they are easy to understand and allow the user to draw conclusions about the attributes which span the projection screen. Unfortunately, scatterplots have the overplotting problem which is especial...	false	false	[ "Amihood Amir", "Reuven Kashi", "Daniel A. Keim", "Nathan S. Netanyahu", "Markus Wawryniuk" ]	[]	[]	[]
EuroVis	2,004	Software Landscapes: Visualizing the Structure of Large Software Systems	10.2312/VisSym/VisSym04/261-266	Modern object-oriented programs are hierarchical systems with many thousands of interrelated subsystems. Visualization helps developers to better comprehend these large and complex systems. This paper presents a three-dimensional visualization technique that represents the static structure of object-oriented programs u...	false	false	[ "Michael Balzer", "Andreas Noack", "Oliver Deussen", "Claus Lewerentz" ]	[]	[]	[]
EuroVis	2,004	Superquadric tensor glyphs	10.2312/VisSym/VisSym04/147-154	Tensor field visualization is a challenging task due in part to the multi-variate nature of individual tensor samples. Glyphs convey tensor variables by mapping the tensor eigenvectors and eigenvalues to the orientation and shape of a geometric primitive, such as a cuboid or ellipsoid. Though widespread, cuboids and el...	false	false	[ "Gordon L. Kindlmann" ]	[]	[]	[]
EuroVis	2,004	Surface Techniques for Vortex Visualization	10.2312/VisSym/VisSym04/155-164	This paper presents powerful surface based techniques for the analysis of complex flow fields resulting from CFD simulations. Emphasis is put on the examination of vortical structures. An improved method for stream surface computation that delivers accurate results in regions of intricate flow is presented, along with ...	false	false	[ "Christoph Garth", "Xavier Tricoche", "Tobias Salzbrunn", "Tom Bobach", "Gerik Scheuermann" ]	[]	[]	[]
EuroVis	2,004	Techniques for Visualizing Multi-Valued Flow Data	10.2312/VisSym/VisSym04/165-172	In this paper we discuss several techniques to display multiple scalar distributions within an image depicting a 2D flow field. We first address how internal contrast and mean luminance can effectively be used to represent a scalar distribution in addition to an underlying flow field. Secondly, we expand upon a current...	false	false	[ "Timothy Urness", "Victoria Interrante", "Ellen Longmire", "Ivan Marusic", "Bharathram Ganapathisubramani" ]	[]	[]	[]
EuroVis	2,004	Texture-Based Flow Visualization on Isosurfaces	10.2312/VisSym/VisSym04/085-090	Isosurfacing, by itself, is a common visualization technique for investigating 3D vector fields. Applying texturebased flow visualization techniques to isosurfaces provides engineers with even more insight into the characteristics of 3D vector fields. We apply a method for producing dense, texture-based representations...	false	false	[ "Robert S. Laramee", "Jürgen Schneider", "Helwig Hauser" ]	[]	[]	[]
EuroVis	2,004	TimeHistograms for Large, Time-Dependent Data	10.2312/VisSym/VisSym04/045-054	Histograms are a very useful tool for data analysis, because they show the distribution of values over a data dimension. Many data sets in engineering (like computational fluid dynamics, CFD), however, are time-dependent. While standard histograms can certainly show such data sets, they do not account for the special r...	false	false	[ "Robert Kosara", "Fabian Bendix", "Helwig Hauser" ]	[]	[]	[]
EuroVis	2,004	Visual Component Analysis	10.2312/VisSym/VisSym04/129-136	We propose to integrate information visualization techniques with factor analysis. Specifically, a principal direction derived from a principal component analysis (PCA) of the data is displayed together with the data in a scatterplot matrix. The direction can be adjusted to coincide with visual trends in the data. Proj...	false	false	[ "Wolfgang Müller 0004", "Marc Alexa" ]	[]	[]	[]
EuroVis	2,004	Visual Triangulation of Network-Based Phylogenetic Trees	10.2312/VisSym/VisSym04/075-084	Phylogenetic trees are built by examining differences in the biological traits of a set of species. An example of such a trait is a biological network such as a metabolic pathway, common to all species but with subtle differences in each. Phylogenetic trees of metabolic pathways represent multiple aspects of similarity...	false	false	[ "Ulrik Brandes", "Tim Dwyer", "Falk Schreiber" ]	[]	[]	[]
EuroVis	2,004	Visualization For Public-Resource Climate Modeling	10.2312/VisSym/VisSym04/103-108	Climateprediction.net aims to harness the spare CPU cycles of a million individual users' PCs to run a massive ensemble of climate simulations using an up-to-date, full-scale 3D atmosphere-ocean climate model. Although it has many similarities with other public-resource computing projects, it is distinguished by the co...	false	false	[ "J. P. R. B. Walton", "D. Frame", "D. A. Stainforth" ]	[]	[]	[]
EuroVis	2,004	Visualization of anatomic tree structures with convolution surfaces	10.2312/VisSym/VisSym04/311-320	We present a method for visualizing anatomic tree structures, such as vasculature and bronchial trees based on clinical CT- or MR data. The vessel skeleton as well as the diameter information per voxel serve as input. Our method adheres to these data, while producing smooth transitions at branchings and closed, rounded...	false	false	[ "Steffen Oeltze", "Bernhard Preim" ]	[]	[]	[]
EuroVis	2,004	Visualization of Cardio-CT Data on Standard PC Hardware	10.2312/VisSym/VisSym04/243-248	In the last years, texture based volume rendering on the PC platform has proven very successful. Many methods that could formerly only be done with software renderers can now be done completely by the graphics hardware. In this paper we present first results of our ongoing work that deals with the visualization of time...	false	false	[ "Michael Bauer 0002" ]	[]	[]	[]
EuroVis	2,004	Visualizing Organisms with Hydraulic Body Parts: A Case Study in Integrating Simulation and Visualization Models	10.2312/VisSym/VisSym04/097-102	The physical structure of organisms can be modelled as a set of coupled hydraulic entities. The hydropneumatic biosimulation is a methodology that is able to simulate the behavior (like movements) of such organisms on the physical level in a biological correct way. Hydropneumatic simulation heavily relies on visualisat...	false	false	[ "T. Breiner", "Ralf Dörner", "Christian Seiler", "M. Gudo" ]	[]	[]	[]
EuroVis	2,004	Volume Visualization and Visual Queries for Large High-Dimensional Datasets	10.2312/VisSym/VisSym04/255-260	We propose a flexible approach for the visualization of large, high-dimensional datasets. The raw, highdimensional data is mapped into an abstract 3D distance space using the FastMap algorithm, which helps, together with other linear preprocessing steps, to make changes to the resulting 3D representation within a few s...	false	false	[ "Guido Reina", "Thomas Ertl" ]	[]	[]	[]
CHI	2,004	A social proxy for distributed tasks: design and evaluation of a working prototype	10.1145/985692.985763	This paper describes an approach to managing tasks and processes that are distributed across a large number of people. The basic idea is to use a social visualization called a task proxy to create a shared awareness amongst the participants in a task or process. The process awareness provided by the task proxy enables ...	false	false	[ "Thomas Erickson", "Wei Huang", "Catalina Danis", "Wendy A. Kellogg" ]	[]	[]	[]
CHI	2,004	Connecting time-oriented data and information to a coherent interactive visualization	10.1145/985692.985706	In modern intensive care units (ICUs), the medical staff has to monitor a huge amount of high-dimensional and time-oriented data, which needs to be visualized user- and task-specifically to ease diagnosis and treatment planning. Available visual representations, like diagrams or charts neglect the implicit information ...	false	false	[ "Ragnar Bade", "Stefan Schlechtweg", "Silvia Miksch" ]	[]	[]	[]
CHI	2,004	Feeling bumps and holes without a haptic interface: the perception of pseudo-haptic textures	10.1145/985692.985723	We present a new interaction technique to simulate textures in desktop applications without a haptic interface. The proposed technique consists in modifying the motion of the cursor on the computer screen - i.e. the Control/Display ratio. Assuming that the image displayed on the screen corresponds to a top view of the ...	false	false	[ "Anatole Lécuyer", "Jean-Marie Burkhardt", "Laurent Étienne" ]	[]	[]	[]
CHI	2,004	Studying cooperation and conflict between authors with history flow visualizations	10.1145/985692.985765	The Internet has fostered an unconventional and powerful style of collaboration: "wiki" web sites, where every visitor has the power to become an editor. In this paper we investigate the dynamics of Wikipedia, a prominent, thriving wiki. We make three contributions. First, we introduce a new exploratory data analysis t...	false	false	[ "Fernanda B. Viégas", "Martin Wattenberg", "Kushal Dave" ]	[]	[]	[]
Vis	2,003	3D IBFV: hardware-accelerated 3D flow visualization	10.1109/VISUAL.2003.1250377	We present a hardware-accelerated method for visualizing 3D flow fields. The method is based on insertion, advection, and decay of dye. To this aim, we extend the texture-based IBFV technique presented by van Wijk (2001) for 2D flow visualization in two main directions. First, we decompose the 3D flow visualization pro...	false	false	[ "Alexandru C. Telea", "Jarke J. van Wijk" ]	[]	[]	[]
Vis	2,003	A constraint-based technique for haptic volume exploration	10.1109/VISUAL.2003.1250381	We present a haptic rendering technique that uses directional constraints to facilitate enhanced exploration modes for volumetric datasets. The algorithm restricts user motion in certain directions by incrementally moving a proxy point along the axes of a local reference frame. Reaction forces are generated by a spring...	false	false	[ "Milan Ikits", "J. Dean Brederson", "Charles D. Hansen", "Christopher R. Johnson 0001" ]	[]	[]	[]
Vis	2,003	A framework for sample-based rendering with O-buffers	10.1109/VISUAL.2003.1250405	We present an innovative modeling and rendering primitive, called the O-buffer, for sample-based graphics, such as images, volumes and points. The 2D or 3D O-buffer is in essence a conventional image or a volume, respectively, except that samples are not restricted to a regular grid. A sample position in the O-buffer i...	false	false	[ "Huamin Qu", "Arie E. Kaufman", "Ran Shao", "Ankush Kumar" ]	[]	[]	[]
Vis	2,003	A frequency-sensitive point hierarchy for images and volumes	10.1109/VISUAL.2003.1250403	This paper introduces a method for converting an image or volume sampled on a regular grid into a space-efficient irregular point hierarchy. The conversion process retains the original frequency characteristics of the dataset by matching the spatial distribution of sample points with the required frequency. To achieve ...	false	false	[ "Tomihisa Welsh", "Klaus Mueller 0001" ]	[]	[]	[]
Vis	2,003	A multi-resolution data structure for two-dimensional Morse-Smale functions	10.1109/VISUAL.2003.1250365	We combine topological and geometric methods to construct a multi-resolution data structure for functions over two-dimensional domains. Starting with the Morse-Smale complex, we construct a topological hierarchy by progressively canceling critical points in pairs. Concurrently, we create a geometric hierarchy by adapti...	false	false	[ "Peer-Timo Bremer", "Herbert Edelsbrunner", "Bernd Hamann", "Valerio Pascucci" ]	[]	[]	[]
Vis	2,003	A novel interface for higher-dimensional classification of volume data	10.1109/VISUAL.2003.1250413	In the traditional volume visualization paradigm, the user specifies a transfer function that assigns each scalar value to a color and opacity by defining an opacity and a color map function. The transfer function has two limitations. First, the user must define curves based on histogram and value rather than seeing an...	false	false	[ "Fan-Yin Tzeng", "Eric B. Lum", "Kwan-Liu Ma" ]	[]	[]	[]
Vis	2,003	A texture-based framework for spacetime-coherent visualization of time-dependent vector fields	10.1109/VISUAL.2003.1250361	We propose unsteady flow advection-convolution (UFAC) as a novel visualization approach for unsteady flows. It performs time evolution governed by pathlines, but builds spatial correlation according to instantaneous streamlines whose spatial extent is controlled by the flow unsteadiness. UFAC is derived from a generic ...	false	false	[ "Daniel Weiskopf", "Gordon Erlebacher", "Thomas Ertl" ]	[]	[]	[]
Vis	2,003	A visual exploration process for the analysis of Internet routing data	10.1109/VISUAL.2003.1250415	The Internet pervades many aspects of our lives and is becoming indispensable to critical functions in areas such as commerce, government, production and general information dissemination. To maintain the stability and efficiency of the Internet, every effort must be made to protect it against various forms of attacks,...	false	false	[ "Soon Tee Teoh", "Kwan-Liu Ma", "Shyhtsun Felix Wu" ]	[]	[]	[]
Vis	2,003	Accelerating large data analysis by exploiting regularities	10.1109/VISUAL.2003.1250420	We present techniques for discovering and exploiting regularity in large curvilinear data sets. The data can be based on a single mesh or a mesh composed of multiple submeshes (also known as zones). Multi-zone data are typical in Computational Fluid Dynamics (CFD) simulations. Regularities include axis-aligned rectilin...	false	false	[ "David Ellsworth", "Patrick J. Moran" ]	[]	[]	[]
Vis	2,003	Acceleration techniques for GPU-based volume rendering	10.1109/VISUAL.2003.1250384	Nowadays, direct volume rendering via 3D textures has positioned itself as an efficient tool for the display and visual analysis of volumetric scalar fields. It is commonly accepted, that for reasonably sized data sets appropriate quality at interactive rates can be achieved by means of this technique. However, despite...	false	false	[ "Jens H. Krüger", "Rüdiger Westermann" ]	[ "TT" ]	[]	[]
Vis	2,003	Adaptive design of a global opacity transfer function for direct volume rendering of ultrasound data	10.1109/VISUAL.2003.1250411	While there are a couple of transfer function design approaches for CT and MRI (magnetic resonance imaging) data, direct volume rendering of ultrasound data still relies on manual adjustment of an inflexible piecewise linear opacity transfer function (OTF) on a trial-and-error basis. The main challenge of automatically...	false	false	[ "Dieter Hönigmann", "Johannes Ruisz", "Christoph Haider" ]	[]	[]	[]
Vis	2,003	Advanced curved planar reformation: flattening of vascular structures	10.1109/VISUAL.2003.1250353	Traditional volume visualization techniques may provide incomplete clinical information needed for applications in medical visualization. In the area of vascular visualization important features such as the lumen of a diseased vessel segment may not be visible. Curved planar reformation (CPR) has proven to be an accept...	false	false	[ "Armin Kanitsar", "Rainer Wegenkittl", "Dominik Fleischmann", "M. Eduard Gröller" ]	[]	[]	[]
Vis	2,003	Appearance-preserving view-dependent visualization	10.1109/VISUAL.2003.1250409	In this paper a new quadric-based view-dependent simplification scheme is presented. The scheme provides a method to connect mesh simplification controlled by a quadric error metric with a level-of-detail hierarchy that is accessed continuously and efficiently based on current view parameters. A variety of methods for ...	false	false	[ "Justin Jang", "William Ribarsky", "Chris Shaw 0002", "Peter Wonka" ]	[]	[]	[]
Vis	2,003	Chameleon: an interactive texture-based rendering framework for visualizing three-dimensional vector fields	10.1109/VISUAL.2003.1250378	In this paper we present an interactive texture-based technique for visualizing three-dimensional vector fields. The goal of the algorithm is to provide a general volume rendering framework allowing the user to compute three-dimensional flow textures interactively, and to modify the appearance of the visualization on t...	false	false	[ "Guo-Shi Li", "Udeepta Bordoloi", "Han-Wei Shen" ]	[]	[]	[]
Vis	2,003	Clifford convolution and pattern matching on vector fields	10.1109/VISUAL.2003.1250372	The goal of this paper is to define a convolution operation which transfers image processing and pattern matching to vector fields from flow visualization. For this, a multiplication of vectors is necessary. Clifford algebra provides such a multiplication of vectors. We define a Clifford convolution on vector fields wi...	false	false	[ "Julia Ebling", "Gerik Scheuermann" ]	[]	[]	[]
Vis	2,003	Compression domain volume rendering	10.1109/VISUAL.2003.1250385	A survey of graphics developers on the issue of texture mapping hardware for volume rendering would most likely find that the vast majority of them view limited texture memory as one of the most serious drawbacks of an otherwise fine technology. In this paper, we propose a compression scheme for static and time-varying...	false	false	[ "Jens Schneider 0002", "Rüdiger Westermann" ]	[]	[]	[]
Vis	2,003	Conveying shape and features with image-based relighting	10.1109/VISUAL.2003.1250392	Hand-crafted illustrations are often more effective than photographs for conveying the shape and important features of an object, but they require expertise and time to produce. We describe an image compositing system and user interface that allow an artist to quickly and easily create technical illustrations from a se...	false	false	[ "David Akers", "Frank Losasso", "Jeff Klingner", "Maneesh Agrawala", "John Rick", "Pat Hanrahan" ]	[]	[]	[]
Vis	2,003	Counting cases in marching cubes: toward a generic algorithm for producing substitopes	10.1109/VISUAL.2003.1250354	We describe how to count the cases that arise in a family of visualization techniques, including marching cubes, sweeping simplices, contour meshing, interval volumes, and separating surfaces. Counting the cases is the first step toward developing a generic visualization algorithm to produce substitopes (geometric subs...	false	false	[ "David C. Banks", "Stephen A. Linton" ]	[ "BP" ]	[]	[]
Vis	2,003	Curvature-based transfer functions for direct volume rendering: methods and applications	10.1109/VISUAL.2003.1250414	Direct volume rendering of scalar fields uses a transfer function to map locally measured data properties to opacities and colors. The domain of the transfer function is typically the one-dimensional space of scalar data values. This paper advances the use of curvature information in multi-dimensional transfer function...	false	false	[ "Gordon L. Kindlmann", "Ross T. Whitaker", "Tolga Tasdizen", "Torsten Möller" ]	[]	[]	[]
Vis	2,003	Do I really see a bone?	10.1109/VISUAL.2003.1250429	Raw data from scanners and simulations has insight embedded within it. However, there is a need to explicitly glean the insight from the data or a version of it. Visualization algorithms and methods are designed just to do that. What insight is to be gleaned depends on the data, its use, and the medium of display. Thus...	false	false	[ "Raghu Machiraju", "Christopher R. Johnson 0001", "Terry S. Yoo", "Roger Crawfis", "David S. Ebert", "Don Stredney" ]	[]	[]	[]
Vis	2,003	Effectively visualizing multi-valued flow data using color and texture	10.1109/VISUAL.2003.1250362	In this paper we offer several new insights and techniques for effectively using color and texture to simultaneously convey information about multiple 2D scalar and vector distributions, in a way that facilitates allowing each distribution to be understood both individually and in the context of one or more of the othe...	false	false	[ "Timothy Urness", "Victoria Interrante", "Ivan Marusic", "Ellen Longmire", "Bharathram Ganapathisubramani" ]	[]	[]	[]
Vis	2,003	Empty space skipping and occlusion clipping for texture-based volume rendering	10.1109/VISUAL.2003.1250388	We propose methods to accelerate texture-based volume rendering by skipping invisible voxels. We partition the volume into sub-volumes, each containing voxels with similar properties. Sub-volumes composed of only voxels mapped to empty by the transfer function are skipped. To render the adaptively partitioned sub-volum...	false	false	[ "Wei Li 0004", "Klaus Mueller 0001", "Arie E. Kaufman" ]	[]	[]	[]
Vis	2,003	Exploring curved anatomic structures with surface sections	10.1109/VISUAL.2003.1250351	The extraction of planar sections from volume images is the most commonly used technique for inspecting and visualizing anatomic structures. We propose to generalize the concept of planar section to the extraction of curved cross-sections (free form surfaces). Compared with planar slices, curved cross-sections may easi...	false	false	[ "Laurent Saroul", "Sebastian Gerlach", "Roger D. Hersch" ]	[]	[]	[]
Vis	2,003	Extraction of topologically simple isosurfaces from volume datasets	10.1109/VISUAL.2003.1250356	There are numerous algorithms in graphics and visualization whose performance is known to decay as the topological complexity of the input increases. On the other hand, the standard pipeline for 3D geometry acquisition often produces 3D models that are topologically more complex than their real forms. We present a simp...	false	false	[ "Andrzej Szymczak", "James Vanderhyde" ]	[]	[]	[]
Vis	2,003	Fairing scalar fields by variational modeling of contours	10.1109/VISUAL.2003.1250398	Volume rendering and isosurface extraction from three-dimensional scalar fields are mostly based on piecewise trilinear representations. In regions of high geometric complexity such visualization methods often exhibit artifacts, due to trilinear interpolation. In this work, we present an iterative fairing method for sc...	false	false	[ "Martin Hering-Bertram" ]	[]	[]	[]
Vis	2,003	Fast volume segmentation with simultaneous visualization using programmable graphics hardware	10.1109/VISUAL.2003.1250369	Segmentation of structures from measured volume data, such as anatomy in medical imaging, is a challenging data-dependent task. In this paper, we present a segmentation method that leverages the parallel processing capabilities of modern programmable graphics hardware in order to run significantly faster than previous ...	false	false	[ "Anthony J. Sherbondy", "Michael Houston", "Sandy Napel" ]	[]	[]	[]
Vis	2,003	Feature-sensitive subdivision and isosurface reconstruction	10.1109/VISUAL.2003.1250360	We present improved subdivision and isosurface reconstruction algorithms for polygonizing implicit surfaces and performing accurate geometric operations. Our improved reconstruction algorithm uses directed distance fields (Kobbelt et al., 2001) to detect multiple intersections along an edge, separates them into compone...	false	false	[ "Gokul Varadhan", "Shankar Krishnan", "Young J. Kim", "Dinesh Manocha" ]	[]	[]	[]
Vis	2,003	Feature-space analysis of unstructured meshes	10.1109/VISUAL.2003.1250371	Unstructured meshes are often used in simulations and imaging applications. They provide advanced flexibility in modeling abilities but are more difficult to manipulate and analyze than regular data. This work provides a novel approach for the analysis of unstructured meshes using feature-space clustering and feature-d...	false	false	[ "Ariel Shamir" ]	[]	[]	[]
Vis	2,003	Gaussian transfer functions for multi-field volume visualization	10.1109/VISUAL.2003.1250412	Volume rendering is a flexible technique for visualizing dense 3D volumetric datasets. A central element of volume rendering is the conversion between data values and observable quantities such as color and opacity. This process is usually realized through the use of transfer functions that are precomputed and stored i...	false	false	[ "Joe Michael Kniss", "Simon Premoze", "Milan Ikits", "Aaron E. Lefohn", "Charles D. Hansen", "Emil Praun" ]	[]	[]	[]
Vis	2,003	Hardware-based nonlinear filtering and segmentation using high-level shading languages	10.1109/VISUAL.2003.1250387	Non-linear filtering is an important task for volume analysis. This paper presents hardware-based implementations of various non-linear filters for volume smoothing with edge preservation. The Cg high-level shading language is used in combination with latest PC consumer graphics hardware. Filtering is divided into perv...	false	false	[ "Ivan Viola", "Armin Kanitsar", "M. Eduard Gröller" ]	[]	[]	[]
Vis	2,003	Hardware-based ray casting for tetrahedral meshes	10.1109/VISUAL.2003.1250390	We present the first implementation of a volume ray casting algorithm for tetrahedral meshes running on off-the-shelf programmable graphics hardware. Our implementation avoids the memory transfer bottleneck of the graphics bus since the complete mesh data is stored in the local memory of the graphics adapter and all co...	false	false	[ "Manfred Weiler", "Martin Kraus", "Markus Merz", "Thomas Ertl" ]	[]	[]	[]
Vis	2,003	Heart-muscle fiber reconstruction from diffusion tensor MRI	10.1109/VISUAL.2003.1250425	In this paper we use advanced tensor visualization techniques to study 3D diffusion tensor MRI data of a heart. We use scalar and tensor glyph visualization methods to investigate the data and apply a moving least squares (MLS) fiber tracing method to recover and visualize the helical structure and the orientation of t...	false	false	[ "Leonid Zhukov", "Alan H. Barr" ]	[]	[]	[]
Vis	2,003	Hierarchical clustering for unstructured volumetric scalar fields	10.1109/VISUAL.2003.1250389	We present a method to represent unstructured scalar fields at multiple levels of detail. Using a parallelizable classification algorithm to build a cluster hierarchy, we generate a multiresolution representation of a given volumetric scalar data set. The method uses principal component analysis (PCA) for cluster gener...	false	false	[ "Christopher S. Co", "Bjørn Heckel", "Hans Hagen", "Bernd Hamann", "Kenneth I. Joy" ]	[]	[]	[]
Vis	2,003	Hierarchical splatting of scattered data	10.1109/VISUAL.2003.1250404	Numerical particle simulations and astronomical observations create huge data sets containing uncorrelated 3D points of varying size. These data sets cannot be visualized interactively by simply rendering millions of colored points for each frame. Therefore, in many visualization applications a scalar density correspon...	false	false	[ "Matthias Hopf", "Thomas Ertl" ]	[]	[]	[]
Vis	2,003	High dimensional direct rendering of time-varying volumetric data	10.1109/VISUAL.2003.1250402	We present an alternative method for viewing time-varying volumetric data. We consider such data as a four-dimensional data field, rather than considering space and time as separate entities. If we treat the data in this manner, we can apply high dimensional slicing and projection techniques to generate an image hyperp...	false	false	[ "Jonathan Woodring", "Chaoli Wang 0001", "Han-Wei Shen" ]	[]	[]	[]
Vis	2,003	High-quality two-level volume rendering of segmented data sets on consumer graphics hardware	10.1109/VISUAL.2003.1250386	One of the most important goals in volume rendering is to be able to visually separate and selectively enable specific objects of interest contained in a single volumetric data set, which can be approached by using explicit segmentation information. We show how segmented data sets can be rendered interactively on curre...	false	false	[ "Markus Hadwiger", "Christoph Berger", "Helwig Hauser" ]	[]	[]	[]
Vis	2,003	Holographic video display of time-series volumetric medical data	10.1109/VISUAL.2003.1250424	We describe an animated electro-holographic visualization of brain lesions due to the progression of multiple sclerosis. A research case study is used which documents the expression of visible brain lesions in a series of magnetic resonance imaging (MRI) volumes collected over the interval of one year. Some of the sali...	false	false	[ "Wendy Plesniak", "Michael Halle", "Steven D. Pieper", "William M. Wells III", "Marianna Jakab", "Dominik S. Meier", "Stephen A. Benton", "Charles R. G. Guttmann", "Ron Kikinis" ]	[]	[]	[]
Vis	2,003	Hybrid segmentation and exploration of the human lungs	10.1109/VISUAL.2003.1250370	Segmentation of the tracheo-bronchial tree of the lungs is notoriously difficult. This is due to the fact that the small size of some of the anatomical structures is subject to partial volume effects. Furthermore, the limited intensity contrast between the participating materials (air, blood, and tissue) increases the ...	false	false	[ "Dirk Bartz", "Dirk Mayer", "Jan Fischer", "Sebastian Ley", "Ángel del Río", "Steffi Thust", "Claus Peter Heussel", "Hans-Ulrich Kauczor", "Wolfgang Straßer" ]	[]	[]	[]
Vis	2,003	HyperLIC	10.1109/VISUAL.2003.1250379	We introduce a new method for visualizing symmetric tensor fields. The technique produces images and animations reminiscent of line integral convolution (LIC). The technique is also slightly related to hyperstreamlines in that it is used to visualize tensor fields. However, the similarity ends there. HyperLIC uses a mu...	false	false	[ "Xiaoqiang Zheng", "Alex T. Pang" ]	[]	[]	[]
Vis	2,003	IEEE Visualization 2003 (IEEE Cat. No.03CH37496)	10.1109/VISUAL.2003.1250348	The following topics are dealt with: medical visualization; isosurfaces; implicit surfaces; flow visualization; terrains and view-dependent methods; segmentation and feature analysis; haptics and physical simulation; hardware-assisted volume rendering; volume rendering acceleration; shading and shape perception; volume...	false	false	[ "Greg Turk", "Jarke J. van Wijk", "Robert J. Moorhead II" ]	[]	[]	[]
Vis	2,003	Image based flow visualization for curved surfaces	10.1109/VISUAL.2003.1250363	A new method for the synthesis of dense, vector-field aligned textures on curved surfaces is presented, called IBFVS. The method is based on image based flow visualization (IBFV). In IBFV two-dimensional animated textures are produced by defining each frame of a flow animation as a blend between a warped version of the...	false	false	[ "Jarke J. van Wijk" ]	[]	[]	[]
Vis	2,003	Image space based visualization of unsteady flow on surfaces	10.1109/VISUAL.2003.1250364	We present a technique for direct visualization of unsteady flow on surfaces from computational fluid dynamics. The method generates dense representations of time-dependent vector fields with high spatio-temporal correlation using both Lagrangian-Eulerian advection and image based flow visualization as its foundation. ...	false	false	[ "Robert S. Laramee", "Bruno Jobard", "Helwig Hauser" ]	[]	[]	[]
Vis	2,003	Information and scientific visualization: separate but equal or happy together at last	10.1109/VISUAL.2003.1250428	Must we continue to define a difference between information and scientific visualization? Scientific visualization evolved first in the late 1980’s while information visualization matured in the mid-1990’s. Scientific visualization is frequently considered to focus on the visual display of spatial data associated with ...	false	false	[ "Theresa-Marie Rhyne", "Melanie Tory", "Tamara Munzner", "Matthew O. Ward", "Christopher R. Johnson 0001", "David H. Laidlaw" ]	[]	[]	[]
Vis	2,003	Interactive 3D visualization of rigid body systems	10.1109/VISUAL.2003.1250417	Simulation of rigid body dynamics has been a field of active research for quite some time. However, the presentation of simulation results has received far less attention so far. We present an interactive and intuitive 3D visualization framework for rigid body simulation data. We introduce various glyphs representing v...	false	false	[ "Zoltan Konyha", "Kresimir Matkovic", "Helwig Hauser" ]	[]	[]	[]
Vis	2,003	Interactive deformation and visualization of level set surfaces using graphics hardware	10.1109/VISUAL.2003.1250357	Deformable isosurfaces, implemented with level-set methods, have demonstrated a great potential in visualization for applications such as segmentation, surface processing, and surface reconstruction. Their usefulness has been limited, however, by their high computational cost and reliance on significant parameter tunin...	false	false	[ "Aaron E. Lefohn", "Joe Michael Kniss", "Charles D. Hansen", "Ross T. Whitaker" ]	[]	[]	[]
Vis	2,003	Interactive protein manipulation	10.1109/VISUAL.2003.1250423	We describe an interactive visualization and modeling program for the creation of protein structures "from scratch." The input to our program is an amino acid sequence - decoded from a gene - and a sequence of predicted secondary structure types for each amino acid - provided by external structure prediction programs. ...	false	false	[ "Oliver Kreylos", "Nelson L. Max", "Bernd Hamann", "Silvia N. Crivelli", "E. Wes Bethel" ]	[ "BA" ]	[]	[]
Vis	2,003	Interactive view-dependent rendering with conservative occlusion culling in complex environments	10.1109/VISUAL.2003.1250368	This paper presents an algorithm combining view-dependent rendering and conservative occlusion culling for interactive display of complex environments. A vertex hierarchy of the entire scene is decomposed into a cluster hierarchy through a novel clustering and partitioning algorithm. The cluster hierarchy is then used ...	false	false	[ "Sung-Eui Yoon", "Brian Salomon", "Dinesh Manocha" ]	[]	[]	[]
Vis	2,003	Interoperability of visualization software and data models is not an achievable goal	10.1109/VISUAL.2003.1250427	Author(s): Bethel, E. Wes \| Abstract: The scientific visualization community faces a crisis: there exist many individual tools that can be used to perform visualization, but there is little, if any, hope of being able to use tools from different sources as part of a single application. As a result, our community is fra...	false	false	[ "E. Wes Bethel", "Greg Abram", "John Shalf", "Randy Frank", "James P. Ahrens", "Steven G. Parker", "Nagiza F. Samatova", "Mark C. Miller" ]	[]	[]	[]
Vis	2,003	Large mesh simplification using processing sequences	10.1109/VISUAL.2003.1250408	In this paper we show how out-of-core mesh processing techniques can be adapted to perform their computations based on the new processing sequence paradigm (Isenburg, et al., 2003), using mesh simplification as an example. We believe that this processing concept will also prove useful for other tasks, such a parameteri...	false	false	[ "Martin Isenburg", "Peter Lindstrom 0001", "Stefan Gumhold", "Jack Snoeyink" ]	[]	[]	[]
Vis	2,003	LightKit: a lighting system for effective visualization	10.1109/VISUAL.2003.1250395	LightKit is a system for lighting three-dimensional synthetic scenes. LightKit simplifies the task of producing visually pleasing, easily interpretable images for visualization while making it harder to produce results where the scene illumination distracts from the visualization process. LightKit is based on lighting ...	false	false	[ "Michael Halle", "Jeanette C. Meng" ]	[]	[]	[]
Vis	2,003	MC*: star functions for marching cubes	10.1109/VISUAL.2003.1250355	We describe a modification of the widely used marching cubes method that leads to the useful property that the resulting isosurfaces are locally single valued functions. This implies that conventional interpolation and approximation methods can be used to locally represent the surface. These representations can be used...	false	false	[ "Gregory M. Nielson" ]	[]	[]	[]
Vis	2,003	Mental registration of 2D and 3D visualizations (an empirical study)	10.1109/VISUAL.2003.1250396	2D and 3D views are used together in many visualization domains, such as medical imaging, flow visualization, oceanographic visualization, and computer aided design (CAD). Combining these views into one display can be done by: (1) orientation icon (i.e., separate windows), (2) in-place methods (e.g., clip and cutting p...	false	false	[ "Melanie Tory" ]	[]	[]	[]
Vis	2,003	Monte Carlo volume rendering	10.1109/VISUAL.2003.1250406	In this paper a novel volume-rendering technique based on Monte Carlo integration is presented. As a result of a preprocessing, a point cloud of random samples is generated using a normalized continuous reconstruction of the volume as a probability density function. This point cloud is projected onto the image plane, a...	false	false	[ "Balázs Csébfalvi", "László Szirmay-Kalos" ]	[]	[]	[]
Vis	2,003	Out-of-core isosurface extraction of time-varying fields over irregular grids	10.1109/VISUAL.2003.1250375	In this paper, we propose a novel out-of-core isosurface extraction technique for large time-varying fields over irregular grids. We employ our meta-cell technique to explore the spatial coherence of the data, and our time tree algorithm to consider the temporal coherence as well. Our one-time preprocessing phase first...	false	false	[ "Yi-Jen Chiang" ]	[]	[]	[]
Vis	2,003	Piecewise C¹ continuous surface reconstruction of noisy point clouds via local implicit quadric regression	10.1109/VISUAL.2003.1250359	This paper addresses the problem of surface reconstruction of highly noisy point clouds. The surfaces to be reconstructed are assumed to be 2-manifolds of piecewise C/sup 1/ continuity, with isolated small irregular regions of high curvature, sophisticated local topology or abrupt burst of noise. At each sample point, ...	false	false	[ "Hui Xie 0001", "Jianning Wang", "Jing Hua 0001", "Hong Qin", "Arie E. Kaufman" ]	[]	[]	[]
Vis	2,003	Planet-sized batched dynamic adaptive meshes (P-BDAM)	10.1109/VISUAL.2003.1250366	We describe an efficient technique for out-of-core management and interactive rendering of planet sized textured terrain surfaces. The technique, called planet-sized batched dynamic adaptive meshes (P-BDAM), extends the BDAM approach by using as basic primitive a general triangulation of points on a displaced triangle....	false	false	[ "Paolo Cignoni", "Fabio Ganovelli", "Enrico Gobbetti", "Fabio Marton", "Federico Ponchio", "Roberto Scopigno" ]	[]	[]	[]
Vis	2,003	Producing high-quality visualizations of large-scale simulation	10.1109/VISUAL.2003.1250422	This paper describes the work of a team of researchers in computer graphics, geometric computing, and civil engineering to produce a visualization of the September 2001 attack on the Pentagon. The immediate motivation for the project was to understand the behavior of the building under the impact. The longer term motiv...	false	false	[ "Voicu Popescu", "Christoph M. Hoffmann", "Sami Kilic", "Mete Sozen", "Scott Meador" ]	[]	[]	[]
Vis	2,003	Psychophysical scaling of a cardiovascular information display	10.1109/VISUAL.2003.1250352	A new method was developed to increase the saliency of changing variables in a cardiovascular visualization for use by anesthesiologists in the operating room (OR). Clinically meaningful changes in patient physiology were identified and then mapped to the inherent psychophysical properties of the visualization. A long ...	false	false	[ "Robert Albert", "Noah Syroid", "Yinqi Zhang", "James Agutter", "Frank Drews", "David L. Strayer", "George Hutchinson", "Dwayne R. Westenskow" ]	[]	[]	[]
Vis	2,003	Quasi-static approach approximation for 6 degrees-of-freedom haptic rendering	10.1109/VISUAL.2003.1250380	In this paper, we propose a quasi-static approximation (QSA) approach to simulate the movement of the movable object in 6-degrees-of-freedom (DOF) haptic rendering. In our QSA approach, we solve for static equilibrium during each haptic time step, ignoring any dynamical properties such as inertia. The major contributio...	false	false	[ "Ming Wan", "William A. McNeely" ]	[]	[]	[]
Vis	2,003	Real-time refinement and simplification of adaptive triangular meshes	10.1109/VISUAL.2003.1250367	In this paper we present a generic method for incremental mesh adaptation based on hierarchy of semi-regular meshes. Our method supports any refinement rule mapping vertices onto vertices such as 1-to-4 split or /spl radic/3-subdivision. Resulting adaptive mesh has subdivision connectivity and hence good aspect ratio o...	false	false	[ "Vasily Volkov", "Ling Li 0006" ]	[]	[]	[]
Vis	2,003	Saddle connectors - an approach to visualizing the topological skeleton of complex 3D vector fields	10.1109/VISUAL.2003.1250376	One of the reasons that topological methods have a limited popularity for the visualization of complex 3D flow fields is the fact that such topological structures contain a number of separating stream surfaces. Since these stream surfaces tend to hide each other as well as other topological features, for complex 3D top...	false	false	[ "Holger Theisel", "Tino Weinkauf", "Hans-Christian Hege", "Hans-Peter Seidel" ]	[]	[]	[]
Vis	2,003	Shape simplification based on the medial axis transform	10.1109/VISUAL.2003.1250410	We present a new algorithm for simplifying the shape of 3D objects by manipulating their medial axis transform (MAT). From an unorganized set of boundary points, our algorithm computes the MAT, decomposes the axis into parts, then selectively removes a subset of these parts in order to reduce the complexity of the over...	false	false	[ "Roger C. Tam", "Wolfgang Heidrich" ]	[]	[]	[]
Vis	2,003	Signed distance transform using graphics hardware	10.1109/VISUAL.2003.1250358	This paper presents a signed distance transform algorithm using graphics hardware, which computes the scalar valued function of the Euclidean distance to a given manifold of co-dimension one. If the manifold is closed and orientable, the distance has a negative sign on one side of the manifold and a positive sign on th...	false	false	[ "Christian Sigg", "Ronald Peikert", "Markus H. Gross" ]	[]	[]	[]
Vis	2,003	Space efficient fast isosurface extraction for large datasets	10.1109/VISUAL.2003.1250373	In this paper, we present a space efficient algorithm for speeding up isosurface extraction. Even though there exist algorithms that can achieve optimal search performance to identify isosurface cells, they prove impractical for large datasets due to a high storage overhead. With the dual goals of achieving fast isosur...	false	false	[ "Udeepta Bordoloi", "Han-Wei Shen" ]	[]	[]	[]
Vis	2,003	The visualization market: open source vs. commercial approaches	10.1109/VISUAL.2003.1250350	This forum examines the question of when commercial software makes sense and when open-source software is more appropriate. Visualization software runs the gamut from very general-purpose applications intended for the graphically challenged to highly specific software libraries intended for the sophisticated visualizat...	false	false	[ "Jeremy Jaech", "Stephen C. North", "Mike Peery", "Will Schroeder", "James J. Thomas" ]	[]	[]	[]
Vis	2,003	Using deformations for browsing volumetric data	10.1109/VISUAL.2003.1250400	Many traditional techniques for "looking inside" volumetric data involve removing portions of the data, for example using various cutting tools, to reveal the interior. This allows the user to see hidden parts of the data, but has the disadvantage of removing potentially important surrounding contextual information. We...	false	false	[ "Michael J. McGuffin", "Liviu Tancau", "Ravin Balakrishnan" ]	[]	[]	[]
Vis	2,003	Vicinity shading for enhanced perception of volumetric data	10.1109/VISUAL.2003.1250394	This paper presents a shading model for volumetric data which enhances the perception of surfaces within the volume. The model incorporates uniform diffuse illumination, which arrives equally from all directions at each surface point in the volume. This illumination is attenuated by occlusions in the local vicinity of ...	false	false	[ "A. James Stewart" ]	[]	[]	[]

Subsets and Splits

No community queries yet

The top public SQL queries from the community will appear here once available.