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train · 6.25k 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 29	Award listlengths 0 2	Resources listlengths 0 5	ResourceLinks listlengths 0 10
Vis	2,002	Out-of-core rendering of massive geometric environments	10.1109/VISUAL.2002.1183759	We present an external memory algorithm for fast display of very large and complex geometric environments. We represent the model using a scene graph and employ different culling techniques for rendering acceleration. Our algorithm uses a parallel approach to render the scene as well as fetch objects from the disk in a...	false	false	[ "Gokul Varadhan", "Dinesh Manocha" ]	[]	[]	[]
Vis	2,002	PMR: point to mesh rendering, a feature-based approach	10.1109/VISUAL.2002.1183770	Within the field of computer graphics and visualization, it is often necessary to visualize polygonal models with large number of polygons. Display quality is mandatory, but it is also desirable to have the ability to rapidly update the display in order to facilitate interactive use. Point based rendering methods have ...	false	false	[ "Tamal K. Dey", "James Hudson" ]	[]	[]	[]
Vis	2,002	PRIMA: A case study of using information visualization techniques for patient record analysis	10.1109/VISUAL.2002.1183817	We have created an application, called PRIMA (Patient Record intelligent Monitoring and Analysis), which can be used to visualize and understand patient record data. It was developed to better understand a large collection of patient records of bone marrow transplants at Hadassah Hospital in Jerusalem, Israel. It is ba...	false	false	[ "Donna L. Gresh", "David A. Rabenhorst", "Amnon Shabo", "Shimon Slavin" ]	[]	[]	[]
Vis	2,002	Probabilistic surfaces: point based primitives to show surface uncertainty	10.1109/VISUAL.2002.1183769	Efficient and informative visualization of surfaces with uncertainties is an important topic with many applications in science and engineering. Examples include environmental pollution borderline identification, identification of the limits of an oil basin, or discrimination between contaminated and healthy tissue in m...	false	false	[ "Gevorg Grigoryan", "Penny Rheingans" ]	[]	[]	[]
Vis	2,002	QuadTIN: quadtree based triangulated irregular networks	10.1109/VISUAL.2002.1183800	Interactive visualization of large digital elevation models is of continuing interest in scientific visualization, GIS, and virtual reality applications. Taking advantage of the regular structure of grid digital elevation models, efficient hierarchical multiresolution triangulation and adaptive level-of-detail (LOD) re...	false	false	[ "Renato Pajarola", "Marc Antonijuan", "Roberto Lario" ]	[]	[]	[]
Vis	2,002	Rendering the first star in the Universe - A case study	10.1109/VISUAL.2002.1183824	For quantitative examination of phenomena that simultaneously occur on very different spatial and temporal scales, adaptive hierarchical schemes are required. A special numerical multilevel technique, associated with a particular hierarchical data structure, is so-called adaptive mesh refinement (AMR). It allows one to...	false	false	[ "Ralf Kähler", "Donna J. Cox", "Robert Patterson", "Stuart Levy", "Hans-Christian Hege", "Tom Abel" ]	[]	[]	[]
Vis	2,002	Scalable alignment of large-format multi-projector displays using camera homography trees	10.1109/VISUAL.2002.1183793	This paper presents a vision-based geometric alignment system for aligning the projectors in an arbitrarily large display wall. Existing algorithms typically rely on a single camera view and degrade in accuracy as the display resolution exceeds the camera resolution by several orders of magnitude. Naive approaches to i...	false	false	[ "Han Chen", "Rahul Sukthankar", "Grant Wallace", "Kai Li 0001" ]	[]	[]	[]
Vis	2,002	Sea of images	10.1109/VISUAL.2002.1183792	A long-standing research problem in computer graphics is to reproduce the visual experience of walking through a large photorealistic environment interactively. On one hand, traditional geometry-based rendering systems fall short of simulating the visual realism of a complex environment. On the other hand, image-based ...	false	false	[ "Daniel G. Aliaga", "Thomas A. Funkhouser", "Dimah Yanovsky", "Ingrid Carlbom" ]	[]	[]	[]
Vis	2,002	Seamster: inconspicuous low-distortion texture seam layout	10.1109/VISUAL.2002.1183787	Surface texturing aids the visualization of polygonal meshes by providing additional surface orientation cues and feature annotations. Such texturing is usually implemented via texture mapping, which is easier and more effective when the distortion of the mapping from the surface to the texture map is kept small. We ha...	false	false	[ "Alla Sheffer", "John C. Hart" ]	[]	[]	[]
Vis	2,002	Semotus Visum: a flexible remote visualization framework	10.1109/VISUAL.2002.1183758	By offering more detail and precision, large data sets can provide greater insights to researchers than small data sets. However, these data sets require greater computing resources to view and manage. Remote visualization techniques allow the use of computers that cannot be operated locally. The Semotus Visum framewor...	false	false	[ "Eric Luke", "Charles D. Hansen" ]	[]	[]	[]
Vis	2,002	Simulating fire with texture splats	10.1109/VISUAL.2002.1183779	We propose the use of textured splats as the basic display primitives for an open surface fire model. The high-detail textures help to achieve a smooth boundary of the fire and gain the small-scale turbulence appearance. We utilize the Lattice Boltzmann Model (LBM) to simulate physically-based equations describing the ...	false	false	[ "Xiaoming Wei", "Wei Li 0004", "Klaus Mueller 0001", "Arie E. Kaufman" ]	[]	[]	[]
Vis	2,002	Tensor field visualisation using adaptive filtering of noise fields combined with glyph rendering	10.1109/VISUAL.2002.1183797	While many methods exist for visualising scalar and vector data, visualisation of tensor data is still troublesome. We present a method for visualising second order tensors in three dimensions using a hybrid between direct volume rendering and glyph rendering. An overview scalar field is created by using three-dimensio...	false	false	[ "Andreas Sigfridsson", "Tino Ebbers", "Einar Heiberg", "Lars Wigström" ]	[]	[]	[]
Vis	2,002	TetFusion: an algorithm for rapid tetrahedral mesh simplification	10.1109/VISUAL.2002.1183767	This paper introduces an algorithm for rapid progressive simplification of tetrahedral meshes: TetFusion. We describe how a simple geometry decimation operation steers a rapid and controlled progressive simplification of tetrahedral meshes, while also taking care of complex mesh-inconsistency problems. The algorithm fe...	false	false	[ "Prashant Chopra", "Jörg Meyer 0003" ]	[]	[]	[]
Vis	2,002	Visibility-guided simplification	10.1109/VISUAL.2002.1183784	For some graphics applications, object interiors and hard-to-see regions contribute little to the final images and need not be processed. In this paper, we define a view-independent visibility measure on mesh surfaces based on the visibility function between the surfaces and a surrounding sphere of cameras. We demonstr...	false	false	[ "Eugene Zhang", "Greg Turk" ]	[]	[]	[]
Vis	2,002	Visualizing dynamic molecular conformations	10.1109/VISUAL.2002.1183780	The bioactivity of a molecule strongly depends on its metastable conformational shapes and the transitions between these. Therefore, conformation analysis and visualization is a basic prerequisite for the understanding of biochemical processes. We present techniques for visual analysis of metastable molecular conformat...	false	false	[ "Johannes Schmidt-Ehrenberg", "Daniel Baum", "Hans-Christian Hege" ]	[]	[]	[]
Vis	2,002	Volume clipping via per-fragment operations in texture-based volume visualization	10.1109/VISUAL.2002.1183762	We propose new clipping methods that are capable of using complex geometries for volume clipping. The clipping tests exploit per-fragment operations on the graphics hardware to achieve high frame rates. In combination with texture-based volume rendering, these techniques enable the user to interactively select and expl...	false	false	[ "Daniel Weiskopf", "Klaus Engel", "Thomas Ertl" ]	[]	[]	[]
Vis	2,002	Volume deformation for tensor visualization	10.1109/VISUAL.2002.1183798	Visualizing second-order 3D tensor fields continue to be a challenging task. Although there are several algorithms that have been presented, no single algorithm by itself is sufficient for the analysis because of the complex nature of tensor fields. In this paper, we present two new methods, based on volume deformation...	false	false	[ "Xiaoqiang Zheng", "Alex T. Pang" ]	[]	[]	[]
Vis	2,002	Volume warping for adaptive isosurface extraction	10.1109/VISUAL.2002.1183809	Polygonal approximations of isosurfaces extracted from uniformly sampled volumes are increasing in size due to the availability of higher resolution imaging techniques. The large number of I primitives represented hinders the interactive exploration of the dataset. Though many solutions have been proposed to this probl...	false	false	[ "Laurent Balmelli", "Christopher J. Morris 0001", "Gabriel Taubin", "Fausto Bernardini" ]	[]	[]	[]
Vis	2,002	Volumetric shadows using splatting	10.1109/VISUAL.2002.1183761	This paper describes an efficient algorithm to model the light attenuation due to a participating media with low albedo. The light attenuation is modeled using splatting volume renderer for both the viewer and the light source. During the rendering, a 2D shadow buffer attenuates the light for each pixel. When the contr...	false	false	[ "Caixia Zhang", "Roger Crawfis" ]	[]	[]	[]
Vis	2,002	XFastMesh: fast view-dependent meshing from external memory	10.1109/VISUAL.2002.1183796	We present a novel disk-based multiresolution triangle mesh data structure that supports paging and view-dependent rendering of very large meshes at interactive frame rates from external memory. Our approach, called XFastMesh, is based on a view-dependent mesh simplification framework that represents half-edge collapse...	false	false	[ "Christopher DeCoro", "Renato Pajarola" ]	[]	[]	[]
InfoVis	2,002	A hybrid layout algorithm for sub-quadratic multidimensional scaling	10.1109/INFVIS.2002.1173161	Many clustering and layout techniques have been used for structuring and visualising complex data. This paper is inspired by a number of such contemporary techniques and presents a novel hybrid approach based upon stochastic sampling, interpolation and spring models. We use Chalmers' 1996 O(N/sup 2/) spring model as a ...	false	false	[ "Alistair Morrison", "Greg Ross", "Matthew Chalmers" ]	[]	[]	[]
InfoVis	2,002	A space-optimized tree visualization	10.1109/INFVIS.2002.1173152	We describe a new method for the visualization of tree structured relational data. It can be used especially for the display of very large hierarchies in a 2-dimensional space. We discuss the advantages and limitations of current techniques of tree visualization. Our strategy is to optimize the drawing of trees in a ge...	false	false	[ "Quang Vinh Nguyen", "Mao Lin Huang" ]	[]	[]	[]
InfoVis	2,002	ACE: a fast multiscale eigenvectors computation for drawing huge graphs	10.1109/INFVIS.2002.1173159	We present an extremely fast graph drawing algorithm for very large graphs, which we term ACE (for Algebraic multigrid Computation of Eigenvectors). ACE exhibits an improvement of something like two orders of magnitude over the fastest algorithms we are aware of; it draws graphs of millions of nodes in less than a minu...	false	false	[ "Yehuda Koren", "Liran Carmel", "David Harel" ]	[]	[]	[]
InfoVis	2,002	Angular brushing of extended parallel coordinates	10.1109/INFVIS.2002.1173157	In this paper we present angular brushing for parallel coordinates (PC) as a new approach to highlighting rational data-properties, i.e., features which - in a non-separable way - depend on two data dimensions. We also demonstrate smooth brushing as an intuitive tool for specifying nonbinary degree-of-interest function...	false	false	[ "Helwig Hauser", "Florian Ledermann", "Helmut Doleisch" ]	[]	[]	[]
InfoVis	2,002	Arc diagrams: visualizing structure in strings	10.1109/INFVIS.2002.1173155	This paper introduces a new visualization method, the arc diagram, which is capable of representing complex patterns of repetition in string data. Arc diagrams improve over previous methods such as dotplots because they scale efficiently for strings that contain many instances of the same subsequence. This paper descri...	false	false	[ "Martin Wattenberg" ]	[]	[]	[]
InfoVis	2,002	Beamtrees: compact visualization of large hierarchies	10.1109/INFVIS.2002.1173153	Beamtrees are a new method for the visualization of large hierarchical data sets. Nodes are shown as stacked circular beams, such that both the hierarchical structure as well as the size of nodes are depicted. The dimensions of beams are calculated using a variation of the treemap algorithm. A small user study indicate...	false	false	[ "Frank van Ham", "Jarke J. van Wijk" ]	[]	[]	[]
InfoVis	2,002	Building a visual database for example-based graphics generation	10.1109/INFVIS.2002.1173143	Example-based graphics generation systems automatically create new information visualizations by learning from existing graphic examples. As part of the effort on developing a general-purpose example-based generation system, we are building a visual database of graphic examples. In this paper, we address two main issue...	false	false	[ "Michelle X. Zhou", "Min Chen", "Ying Feng" ]	[]	[]	[]
InfoVis	2,002	Case study: visualizing sets of evolutionary trees	10.1109/INFVIS.2002.1173150	We describe a visualization tool which allows a biologist to explore a large set of hypothetical evolutionary trees. Interacting with such a dataset allows the biologist to identify distinct hypotheses about how different species or organisms evolved, which would not have been clear from traditional analyses. Our syste...	false	false	[ "Nina Amenta", "Jeff Klingner" ]	[]	[]	[]
InfoVis	2,002	Demystifying venture capital investing	10.1109/INFVIS.2002.1173162	Since the crash of the dot.coms, investors have gotten a lot more careful with where they place their money. Now more than ever it becomes really important for venture capitalists (VCs) to monitor the state of the startups market and continually update their investment strategy to suit the rapidly changing market condi...	false	false	[ "Mei C. Chuah" ]	[]	[]	[]
InfoVis	2,002	Display design for the eye and mind	10.1109/INFVIS.2002.1173164	Complex sets of numbers often can be effectively digested only after they are illustrated in charts, graphs or diagrams. However, some of these pictures are worth far less than the proverbial 1,000 words. If a visual display taxes the human perceptual, memory, or cognitive systems, it will be difficult to understand. T...	false	false	[ "Stephen M. Kosslyn" ]	[]	[]	[]
InfoVis	2,002	Efficient cartogram generation: a comparison	10.1109/INFVIS.2002.1173144	Cartograms are a well-known technique for showing geography-related statistical information, such as population demographics and epidemiological data. The basic idea is to distort a map by resizing its regions according to a statistical parameter, but in a way that keeps the map recognizable. We deal with the problem o...	false	false	[ "Daniel A. Keim", "Stephen C. North", "Christian Panse", "Jörn Schneidewind" ]	[]	[]	[]
InfoVis	2,002	Graphical encoding for information visualization: an empirical study	10.1109/INFVIS.2002.1173146	Research in several areas provides scientific guidance for use of graphical encoding to convey information in an information visualization display. By graphical encoding we mean the use of visual display elements such as icon color, shape, size, or position to convey information about objects represented by the icons. ...	false	false	[ "Lucy T. Nowell", "Robert S. Schulman", "Deborah Hix" ]	[]	[]	[]
InfoVis	2,002	Interactive information visualization of a million items	10.1109/INFVIS.2002.1173156	Existing information visualization techniques are usually limited to the display of a few thousand items. This article describes new interactive techniques capable of handling a million items (effectively visible and manageable on screen). We evaluate the use of hardware-based techniques available with newer graphics c...	false	false	[ "Jean-Daniel Fekete", "Catherine Plaisant" ]	[]	[]	[]
InfoVis	2,002	Internet traffic: visualization, discovery, and very large displays	10.1109/INFVIS.2002.1173140	For a decade, the ruling common wisdom for Internet traffic held that it was everywhere bursty: over periods lasting tens of milliseconds to hundreds, the traffic was either much below its average rate or much above. In other words, the traffic was not smooth, not staying at all times close to its average. It was burst...	false	false	[ "William S. Cleveland" ]	[]	[]	[]
InfoVis	2,002	InterRing: an interactive tool for visually navigating and manipulating hierarchical structures	10.1109/INFVIS.2002.1173151	Radial, space-filling (RSF) techniques for hierarchy visualization have several advantages over traditional node-link diagrams, including the ability to efficiently use the display space while effectively conveying the hierarchy structure. Several RSF systems and tools have been developed to date, each with varying deg...	false	false	[ "Jing Yang 0001", "Matthew O. Ward", "Elke A. Rundensteiner" ]	[]	[]	[]
InfoVis	2,002	Multiple foci drill-down through tuple and attribute aggregation polyarchies in tabular data	10.1109/INFVIS.2002.1173158	Information analysis often involves decomposing data into sub-groups to allow for comparison and identification of relationships. Breakdown Visualization provides a mechanism to support this analysis through user guided drill-down of polyarchical metadata. This metadata describes multiple hierarchical structures for or...	false	false	[ "Nathan Conklin", "Sandeep Prabhakar", "Chris North 0001" ]	[]	[]	[]
InfoVis	2,002	Multiscale visualization using data cubes	10.1109/INFVIS.2002.1173141	Most analysts start with an overview of the data before gradually refining their view to be more focused and detailed. Multiscale pan-and-zoom systems are effective because they directly support this approach. However generating abstract overviews of large data sets is difficult, and most systems take advantage of only...	false	false	[ "Chris Stolte", "Diane Tang", "Pat Hanrahan" ]	[ "BP" ]	[]	[]
InfoVis	2,002	Process visualization with levels of detail	10.1109/INFVIS.2002.1173149	We demonstrate how we apply information visualization techniques to process monitoring. Virtual instruments are enhanced using history encoding instruments are capable of displaying the current value and the value from the near past. Multi-instruments are capable of displaying several data sources simultaneously. Level...	false	false	[ "Kresimir Matkovic", "Helwig Hauser", "Reinhard Sainitzer", "M. Eduard Gröller" ]	[]	[]	[]
InfoVis	2,002	SpaceTree: supporting exploration in large node link tree, design evolution and empirical evaluation	10.1109/INFVIS.2002.1173148	We present a novel tree browser that builds on the conventional node link tree diagrams. It adds dynamic rescaling of branches of the tree to best fit the available screen space, optimized camera movement, and the use of preview icons summarizing the topology of the branches that cannot be expanded. In addition, it inc...	false	false	[ "Catherine Plaisant", "Jesse Grosjean", "Benjamin B. Bederson" ]	[]	[]	[]
InfoVis	2,002	The illusion of perceived metric 3D structure	10.1109/INFVIS.2002.1173147	A large body of results on the characteristics of human spatial vision suggests that space perception is distorted. Recent studies indicate that the geometry of visual space is best understood as Affine. If this is the case, it has far reaching implications on how 3D visualizations can be successfully employed. For ins...	false	false	[ "Mats Lind", "Geoffrey P. Bingham", "Camilla Forsell" ]	[]	[]	[]
InfoVis	2,002	Visual path analysis	10.1109/INFVIS.2002.1173163	We describe a system for analyzing the flow of traffic through Web sites. We decomposed the general path analysis problem into a set of distinct subproblems, and created a visual metaphor for analyzing each of them. Our system works off of multiple representations of the clickstream, and exposes the path extraction alg...	false	false	[ "Alan Keahey", "Stephen G. Eick" ]	[]	[]	[]
InfoVis	2,002	Visual unrolling of network evolution and the analysis of dynamic discourse	10.1109/INFVIS.2002.1173160	A new method for visualizing the class of incrementally evolving networks is presented. In addition to the intermediate states of the network it conveys the nature of the change between them by unrolling the dynamics of the network. Each modification is shown in a separate layer of a three-dimensional representation, w...	false	false	[ "Ulrik Brandes", "Steven R. Corman" ]	[]	[]	[]
InfoVis	2,002	Visualization schemas for flexible information visualization	10.1109/INFVIS.2002.1173142	Relational databases provide significant flexibility to organize, store, and manipulate an infinite variety of complex data collections. This flexibility is enabled by the concept of relational data schemas, which allow data owners to easily design custom databases according to their unique needs. However, user interfa...	false	false	[ "Chris North 0001", "Nathan Conklin", "Varun Saini" ]	[]	[]	[]
InfoVis	2,002	Visualizing biosequence data using texture mapping	10.1109/INFVIS.2002.1173154	Data-mining of information by the process of pattern discovery in protein sequences has been predominantly algorithm based. We discuss a visualization approach, which uses texture mapping and blending techniques to perform visual data-mining on text data obtained from discovering patterns in protein sequences. This vis...	false	false	[ "Praveen R. Thiagarajan", "Guang R. Gao" ]	[]	[]	[]
InfoVis	2,002	Visualizing data with bounded uncertainty	10.1109/INFVIS.2002.1173145	Visualization is a powerful way to facilitate data analysis, but it is crucial that visualization systems explicitly convey the presence, nature, and degree of uncertainty to users. Otherwise, there is a danger that data will be falsely interpreted, potentially leading to inaccurate conclusions. A common method for den...	false	false	[ "Christopher Olston", "Jock D. Mackinlay" ]	[]	[]	[]
EuroVis	2,002	A Continuous Skeletonization Method Based on Level Sets	10.2312/VisSym/VisSym02/151-157	A robust and efficient method in 2D and 3D for the calculation of skeletons for arbitrary objects is presented. The method is based on the calculation of the distance function with respect to the object boundary. This is combined, in a post processing step, with a new indicator to identify the skeleton, which coincides...	false	false	[ "Martin Rumpf", "Alexandru C. Telea" ]	[]	[]	[]
EuroVis	2,002	A Generic Solution for Hardware-Accelerated Remote Visualization	10.2312/VisSym/VisSym02/087-094	This paper presents a generic solution for hardware-accelerated remote visualization that works transparently for all OpenGL-based applications and OpenGL-based scene graphs. Universality is achieved by taking advantage of dynamic linking, efficient data transfer by means of VNC. The proposed solution does not require ...	false	false	[ "Simon Stegmaier", "Marcelo Magallón", "Thomas Ertl" ]	[]	[]	[]
EuroVis	2,002	A Novel Approach To Vortex Core Region Detection	10.2312/VisSym/VisSym02/217-225	In this paper we present a simple and efficient vortex core region detection algorithm based on ideas derived from combinatorial topology. These ideas originated from Sperner's lemma, which by itself is of little value to detecting vortex cores. However, we take these ideas from the lemma and apply them in a point-base...	false	false	[ "Ming Jiang 0005", "Raghu Machiraju", "David S. Thompson" ]	[]	[]	[]
EuroVis	2,002	Adding a scalar value to texture-based vector field representations by local contrast analysis	10.2312/VisSym/VisSym02/035-041	Several algorithms can effectively represent vector fields by texture-based representations, visualizing at most all information on the field: direction, orientation, and local magnitude. An open problem still remains the mapping on textures of adjunctive information such as temperature, pressure, and so on, without us...	false	false	[ "Andrea Sanna", "Claudio Zunino", "Bartolomeo Montrucchio", "Paolo Montuschi" ]	[]	[]	[]
EuroVis	2,002	An Augmented Fast Marching Method for Computing Skeletons and Centerlines	10.2312/VisSym/VisSym02/251-259	We present a simple and robust method for computing skeletons for arbitrary planar objects and centerlines for 3D objects. We augment the Fast Marching Method (FMM) widely used in level set applications by computing the paramterized boundary location every pixel came from during the boundary evolution. The resulting pa...	false	false	[ "Alexandru C. Telea", "Jarke J. van Wijk" ]	[]	[]	[]
EuroVis	2,002	An Evaluation of Information Visualization in Attention-Limited Environments	10.2312/VisSym/VisSym02/211-216	People often need to quickly access or maintain awareness of secondary information while busy with other primary tasks. Information visualizations provide rapid, effective access to information, but are generally designed to be examined by users as the primary focus of their attention. The goal of this research is to d...	false	false	[ "Jacob P. Somervell", "D. Scott McCrickard", "Chris North 0001", "Maulik Shukla" ]	[]	[]	[]
EuroVis	2,002	An Open Toolkit for Prototyping Reverse Engineering Visualizations	10.2312/VisSym/VisSym02/241-249	Maintenance and evolution of complex software systems (such as mobile telephones) involves activities such as reverse engineering (RE) and software visualization. Although several RE tools exist, we found their architecture hard to adapt to the domain and problem specific requirements posed by our current practice in N...	false	false	[ "Alexandru C. Telea", "Alessandro Maccari", "Claudio Riva" ]	[]	[]	[]
EuroVis	2,002	AUFLIC: An Accelerated Algorithm For Unsteady Flow Line Integral Convolution	10.2312/VisSym/VisSym02/043-052	UFLIC (Unsteady Flow Line Integral Convolution) is an effective texture synthesis technique to visualize unsteady flow with enhanced temporal coherence, but it is time-consuming to generate. This paper presents an accelerated algorithm, called AUFLIC (Accelerated UFLIC), to speed up the UFLIC generation. Our algorithm ...	false	false	[ "Zhanping Liu", "Robert J. Moorhead II" ]	[]	[]	[]
EuroVis	2,002	Bag-of-Particles as a Deformable Model	10.2312/VisSym/VisSym02/141-150	We present an interactive, physically-based, elastically deformable model using a particle system to model surfaces with interior volumes that can be haptically felt. Oriented particles used in existing surface-only models, and unoriented particles used in volume-only simulations are combined to form a bag-of-particles...	false	false	[ "David J. Stahl Jr.", "Norberto Ezquerra", "Greg Turk" ]	[]	[]	[]
EuroVis	2,002	Best Quadratic Spline Approximation for Hierarchical Visualization	10.2312/VisSym/VisSym02/133-140	We present a method for hierarchical data approximation using quadratic simplicial elements for domain decomposition and field approximation. Higher-order simplicial elements can approximate data better than linear elements. Thus, fewer quadratic elements are required to achieve similar approximation quality. We use qu...	false	false	[ "David F. Wiley", "Henry R. Childs", "Bernd Hamann", "Kenneth I. Joy", "Nelson L. Max" ]	[]	[]	[]
EuroVis	2,002	Cell-Based First-Hit Ray Casting	10.2312/VisSym/VisSym02/077-086	Cell-based first-hit ray casting is a new technique for fast perspective volume visualization. This technique, based on the well known ray casting algorithm, performs iso-surfacing and supports interactive threshold adjustment. It is accelerated by the reduction of average ray path lengths to only a few steps per pixel...	false	false	[ "André Neubauer 0002", "Lukas Mroz", "Helwig Hauser", "Rainer Wegenkittl" ]	[]	[]	[]
EuroVis	2,002	Comparison of Morphological Pyramids for Multiresolution MIP Volume Rendering	10.2312/VisSym/VisSym02/061-070	We recently proposed a multiresolution representation for maximum intensity projection (MIP) volume rendering based on morphological adjunction pyramids which allow progressive refinement and have the property of perfect reconstruction. In this algorithm the pyramidal analysis and synthesis operators are composed of mo...	false	false	[ "Jos B. T. M. Roerdink" ]	[]	[]	[]
EuroVis	2,002	Direct Volume Rendering of Photographic Volumes Using Multi-Dimensional Color-Based Transfer Functions	10.2312/VisSym/VisSym02/115-124	Traditionally, volume rendering of medical data has been comprised of transfer functions that map a scalar value, usually a MRI or CT intensity, to an opacity. Corresponding color maps are either selected regardless of the actual physical color of the volume (i.e. greyscale) or predetermined as in photographic volumes....	false	false	[ "Christopher J. Morris 0001", "David S. Ebert" ]	[]	[]	[]
EuroVis	2,002	Feature-Preserving Volume Filtering	10.2312/VisSym/VisSym02/105-114	In this paper a feature-preserving volume filtering method is presented. The basic idea is to minimize a three-component global error function penalizing the density and gradient errors and the curvature of the unknown filtered function. The optimization problem leads to a large linear equation system defined by a spar...	false	false	[ "László Neumann", "Balázs Csébfalvi", "Ivan Viola", "Matej Mlejnek", "M. Eduard Gröller" ]	[]	[]	[]
EuroVis	2,002	Interactive Previewing for Transfer Function Specification in Volume Rendering	10.2312/VisSym/VisSym02/071-076	This paper presents a new technique for supplying meaningful visual feedback during direct volume rendering transfer function specification. The technique uses meta-data calculated during a pre-processing step to generate interactively an approximate volume rendering that is voxel-registered with a single user-selected...	false	false	[ "Charl P. Botha", "Frits H. Post" ]	[]	[]	[]
EuroVis	2,002	Interactive Visualization and Steering of CFD Simulations	10.2312/VisSym/VisSym02/025-034	We describe a system that supports real-time interactive visualization of computational fluid dynamics (CFD) simulations. The system allows a user to place and manipulate visualization primitives, such as isolines and streamlines, during an ongoing simulation process. A user can interactively select and designate regio...	false	false	[ "Oliver Kreylos", "Allen M. Tesdall", "B. Hamanny", "John K. Hunter", "Kenneth I. Joy" ]	[]	[]	[]
EuroVis	2,002	Locating Closed Streamlines in 3D Vector Fields	10.2312/VisSym/VisSym02/227-232	The analysis and visualization of flows is a central problem in visualization. Topology based methods have gained increasing interest in recent years. This article describes a method for the detection of closed streamlines in 3D flows. It is based on a special treatment of cases where a streamline reenters a cell to pr...	false	false	[ "Thomas Wischgoll", "Gerik Scheuermann" ]	[]	[]	[]
EuroVis	2,002	Octreemizer: A Hierarchical Approach for Interactive Roaming Through Very Large Volumes	10.2312/VisSym/VisSym02/053-060	We have developed a hierarchical paging scheme for handling very large volumetric data sets at interactive frame rates. Our system trades texture resolution for speed and uses effective prediction strategies. We have tested our approach for datasets with up to 16GB in size and show that it works well with less than 500...	false	false	[ "John Plate", "Michael Tirtasana", "Rhadamés Carmona", "Bernd Fröhlich 0001" ]	[]	[]	[]
EuroVis	2,002	Parallel and Out-of-core View-dependent Isocontour Visualization Using Random Data Distribution	10.2312/VisSym/VisSym02/009-018	In this paper we describe a parallel and out-of-core view-dependent isocontour visualization algorithm that efficiently extracts and renders the visible portions of an isosurface from large datasets. The algorithm first creates an occlusion map using ray-casting and nearest neighbors. With the occlusion map constructed...	false	false	[ "Xiaoyu Zhang", "Chandrajit Bajaj", "Vijaya Ramachandran" ]	[]	[]	[]
EuroVis	2,002	Secondary Task Display Attributes - Optimizing Visualizations for Cognitive Task Suitability and Interference Avoidance	10.2312/VisSym/VisSym02/165-171	We found that established display design guidelines for focal images cannot be extended to images displayed as a secondary task in a dual-task situation. This paper describes an experiment that determines a new ordering guideline for secondary task image attributes according to human cognitive ability to extract inform...	false	false	[ "Christa M. Chewar", "D. Scott McCrickard", "Ali Ndiwalana", "Chris North 0001", "Jon Pryor", "David Tessendorf" ]	[]	[]	[]
EuroVis	2,002	Shear-Warp Deluxe: The Shear-Warp Algorithm Revisited	10.2312/VisSym/VisSym02/095-104	Despite continued advances in volume rendering technology, the Shear-Warp algorithm, although conceived as early as 1994, still remains the world's fastest purely software-based volume rendering algorithm. The impressive speed of near double-digit framerates for moderately sized datasets, however, does come at the pric...	false	false	[ "Jon Sweeney", "Klaus Mueller 0001" ]	[]	[]	[]
EuroVis	2,002	Speech and Gesture Multimodal Control of a Whole Earth 3D Visualization Environment	10.2312/VisSym/VisSym02/195-200	A growing body of research shows several advantages to multimodal interfaces including increased expressiveness, flexibility, and user freedom. This paper investigates the design of such an interface that integrates speech and hand gestures. The interface has the additional property of operating relative to the user an...	false	false	[ "David M. Krum", "Olugbenga Omoteso", "William Ribarsky", "Thad Starner", "Larry F. Hodges" ]	[]	[]	[]
EuroVis	2,002	Statistical Computation of Salient ISO-Values	10.2312/VisSym/VisSym02/019-024	Detection of the salient iso-values in a volume dataset is often the first step towards its exploration. An error-and-trail approach is often used; new semi-automatic techniques either make assumptions about their data [4] or present multiple criteria for analysis. Determining if a dataset satisfies an algorithm's assu...	false	false	[ "Shivaraj Tenginakai", "Raghu Machiraju" ]	[]	[]	[]
EuroVis	2,002	Useful Properties of Semantic Depth of Field for Better F+C Visualization	10.2312/VisSym/VisSym02/205-210	This paper presents the results of a thorough user study that was performed to assess some features and the general usefulness of Semantic Depth of Field (SDOF). Based on these results, concrete hints are given on how SDOF can be used for visualization. SDOF was found to be a very effective means for guiding the viewer...	false	false	[ "Robert Kosara", "Silvia Miksch", "Helwig Hauser" ]	[]	[]	[]
EuroVis	2,002	View-Dependent Multiresolution Splatting of Non-Uniform Data	10.2312/VisSym/VisSym02/125-132	This paper develops an approach for the splat-based visualization of large scale, non-uniform data. A hierarchical structure is generated that permits detailed treatment at the leaf nodes of the non-uniform distribution. A set of levels of detail (LODs) are generated based on the levels of the hierarchy. These yield tw...	false	false	[ "Justin Jang", "William Ribarsky", "Christopher D. Shaw", "Nickolas Faust" ]	[]	[]	[]
EuroVis	2,002	Viewpoint Entropy: A New Tool for Obtaining Good Views of Molecules	10.2312/VisSym/VisSym02/183-188	The computation of good viewpoints is important in several fields: computer graphics, removal of degeneracies in computational geometry, robotics, graph drawing, etc. However, in areas such as computer graphics there is no consensus on what a good viewpoint means and, consequently, each author uses his or her own defin...	false	false	[ "Pere-Pau Vázquez", "Miquel Feixas", "Mateu Sbert", "Antoni Llobet" ]	[]	[]	[]
EuroVis	2,002	Visualization of Bibliographic Networks with a Reshaped Landscape Metaphor	10.2312/VisSym/VisSym02/159-164	We describe a novel approach to visualize bibliographic networks that facilitates the simultaneous identification of clusters (e.g., topic areas) and prominent entities (e.g., surveys or landmark papers). While employing the landscape metaphor proposed in several earlier works, we introduce new means to determine relev...	false	false	[ "Ulrik Brandes", "Thomas Willhalm" ]	[]	[]	[]
EuroVis	2,002	Visualization of Large Web Access Data Sets	10.2312/VisSym/VisSym02/201-204	Many real-world e-service applications require analyzing large volumes of transaction data to extract web access information. This paper describes Web Access Visualization (WAV) a system that visually associates the affinities and relationships of clients and URLs for large volumes of web transaction data. To date, man...	false	false	[ "Ming C. Hao", "Pankaj K. Garg", "Umeshwar Dayal", "Vijay Machiraju", "Daniel Cotting" ]	[]	[]	[]
EuroVis	2,002	Visualizing and Investigating Multidimensional Functions	10.2312/VisSym/VisSym02/173-182	This paper addresses the problem of visualizing multidimensional scalar functions. These functions are often encountered in fields such as Engineering, Mathematics, and Physics to understand and model complex phenomena. We propose a novel method based on the dimension reduction philosophy called HyperCell. Its basic co...	false	false	[ "Selan R. dos Santos", "Ken W. Brodlie" ]	[]	[]	[]
EuroVis	2,002	Volume Rendering Multivariate Data to Visualize Meteorological Simulations: A Case Study	10.2312/VisSym/VisSym02/189-194	High resolution computational weather models are becoming increasing complex. However, the analysis of these models has not benefited from recent advancements in volume visualization. This case study applies the ideas and techniques from multi-dimensional transfer function based volume rendering to the multivariate wea...	false	false	[ "Joe Kniss", "Charles D. Hansen" ]	[]	[]	[]
EuroVis	2,002	Vortex Tracking in Scale-Space	10.2312/VisSym/VisSym02/233-240	Scale-space techniques have become popular in computer vision for their capability to access the multiscale information inherently contained in images. We show that the field of flow visualization can benefit from these techniques, too, yielding more coherent features and sorting out numerical artifacts as well as irre...	false	false	[ "Dirk Bauer", "Ronald Peikert" ]	[]	[]	[]
CHI	2,002	Automating CPM-GOMS	10.1145/503376.503404	CPM-GOMS is a modeling method that combines the task decomposition of a GOMS analysis with a model of human resource usage at the level of cognitive, perceptual, and motor operations. CPM-GOMS models have made accurate predictions about skilled user behavior in routine tasks, but developing such models is tedious and e...	false	false	[ "Bonnie E. John", "Alonso H. Vera", "Michael Matessa", "Michael Freed", "Roger W. Remington" ]	[]	[]	[]
CHI	2,002	Keeping things in context: a comparative evaluation of focus plus context screens, overviews, and zooming	10.1145/503376.503423	Users working with documents that are too large and detailed to fit on the user's screen (e.g. chip designs) have the choice between zooming or applying appropriate visualization techniques. In this paper, we present a comparison of three such techniques. The first, focus plus context screens, are wall-size low-resolut...	false	false	[ "Patrick Baudisch", "Nathaniel Good", "Victoria Bellotti", "Pamela K. Schraedley" ]	[]	[]	[]
CHI	2,002	Polyarchy visualization: visualizing multiple intersecting hierarchies	10.1145/503376.503452	We describe a new information structure composed of multiple intersecting hierarchies, which we call Polyarchies. Visualizing polyarchies enables use of novel views for discovery of relationships which are very difficult using existing hierarchy visualization tools. This paper will describe the visualization design and...	false	false	[ "George G. Robertson", "Kim Cameron", "Mary Czerwinski", "Daniel C. Robbins" ]	[]	[]	[]
Vis	2,001	4D space-time techniques: a medical imaging case study	10.1109/VISUAL.2001.964554	We present the problem of visualizing time-varying medical data. Two medical imaging modalities are compared-MRI and dynamic SPECT. For each modality, we examine several derived scalar and vector quantities such as the change in intensity over time, the spatial gradient, and the change of the gradient over time. We com...	false	false	[ "Melanie Tory", "Niklas Röber", "Torsten Möller", "Anna Celler", "M. Stella Atkins" ]	[]	[]	[]
Vis	2,001	A case study on interactive exploration and guidance aids for visualizing historical data	10.1109/VISUAL.2001.964557	In this paper, we address the problem of historical data visualization. We describe the data acquisition, preparation, and visualization. Since the data contain four dimensions, the standard 3D exploration techniques have to be extended or appropriately adapted in order to enable interactive exploration. We discuss in ...	false	false	[ "Stanislav L. Stoev", "Wolfgang Straßer" ]	[]	[]	[]
Vis	2,001	A complete distance field representation	10.1109/VISUAL.2001.964518	Distance fields are an important volume representation. A high quality distance field facilitates accurate surface characterization and gradient estimation. However, due to Nyquist's law, no existing volumetric methods based on the linear sampling theory can fully capture surface details, such as comers and edges, in 3...	false	false	[ "Jian Huang", "Yan Li", "Roger Crawfis", "Shao-Chiung Lu", "Shuh-Yuan Liou" ]	[]	[]	[]
Vis	2,001	A memory insensitive technique for large model simplification	10.1109/VISUAL.2001.964502	The authors propose three simple, but significant improvements to the OoCS (Out-of-Core Simplification) algorithm of P. Lindstrom (2000) which increase the quality of approximations and extend the applicability of the algorithm to an even larger class of compute systems. The original OoCS algorithm has memory complexit...	false	false	[ "Peter Lindstrom 0001", "Cláudio T. Silva" ]	[]	[]	[]
Vis	2,001	A simple algorithm for surface denoising	10.1109/VISUAL.2001.964500	We present a simple denoising technique for geometric data represented as a semiregular mesh, based on locally adaptive Wiener filtering. The degree of denoising is controlled by a single parameter (an estimate of the relative noise level) and the time required for denoising is independent of the magnitude of the estim...	false	false	[ "Jianbo Peng", "Vasily Strela", "Denis Zorin" ]	[]	[]	[]
Vis	2,001	A tetrahedra-based stream surface algorithm	10.1109/VISUAL.2001.964506	This paper presents a new algorithm for the calculation of stream surfaces for tetrahedral grids. It propagates the surface through the tetrahedra, one at a time, calculating the intersections with the tetrahedral faces. The method allows us to incorporate topological information from the cells, e.g. critical points. T...	false	false	[ "Gerik Scheuermann", "Tom Bobach", "Hans Hagen", "Karim Mahrous", "Bernd Hamann", "Kenneth I. Joy", "Wolfgang Kollmann" ]	[]	[]	[]
Vis	2,001	A virtual environment for simulated rat dissection: a case study of visualization for astronaut training	10.1109/VISUAL.2001.964564	Animal dissection for the scientific examination of organ subsystems is a delicate procedure. Performing this procedure under the complex environment of microgravity presents additional challenges because of the limited training opportunities available that can recreate the altered gravity environment. Traditional astr...	false	false	[ "Kevin Montgomery", "Cynthia Bruyns", "Simon Wildermuth" ]	[]	[]	[]
Vis	2,001	Accelerated volume ray-casting using texture mapping	10.1109/VISUAL.2001.964521	Acceleration techniques for volume ray-casting are primarily based on pre-computed data structures that allow one to efficiently traverse empty or homogeneous regions. In order to display volume data that successively undergoes color lookups, however, the data structures have to be re-built continuously. In this paper ...	false	false	[ "Rüdiger Westermann", "Bernd Sevenich" ]	[]	[]	[]
Vis	2,001	An immersive virtual environment for DT-MRI volume visualization applications: a case study	10.1109/VISUAL.2001.964545	We describe a virtual reality environment for visualizing tensor-valued volumetric datasets acquired with diffusion tensor magnetic resonance imaging (DT-MRI). We have prototyped a virtual environment that displays geometric representations of the volumetric second-order diffusion tensor data and are developing interac...	false	false	[ "Song Zhang 0004", "Çagatay Demiralp", "Daniel F. Keefe", "M. DaSilva", "David H. Laidlaw", "Benjamin D. Greenberg", "Peter J. Basser", "Carlo Pierpaoli", "E. A. Chiocca", "Thomas S. Deisboeck" ]	[]	[]	[]
Vis	2,001	Approximate shading for the re-illumination of synthetic images	10.1109/VISUAL.2001.964535	Presents a method to estimate illumination dependent properties in image synthesis prior to rendering. A preprocessing step is described in which a linear image basis is developed and a lighting-independent formulation defined. A reflection function, similar to hemispherical reflectance, approximates normal Lambertian ...	false	false	[ "Randy K. Scoggins", "Raghu Machiraju", "Robert J. Moorhead II" ]	[]	[]	[]
Vis	2,001	Archaeological Data Visualization in VR: Analysis of Lamp Finds at the Great Temple of Petra, a Case Study	10.1109/VISUAL.2001.964560	Presents the results of an evaluation of the ARCHAVE (ARCHAeological Virtual Environment) system, an immersive virtual reality (VR) environment for archaeological research. ARCHAVE is implemented in a Cave. The evaluation studied researchers analyzing lamp and coin finds throughout the excavation trenches at the Petra ...	false	false	[ "Daniel Acevedo Feliz", "Eileen Vote", "David H. Laidlaw", "Martha Sharp Joukowsky" ]	[]	[]	[]
Vis	2,001	Attribute preserving dataset simplification	10.1109/VISUAL.2001.964501	The paper describes a novel application of feature preserving mesh simplification to the problem of managing large, multidimensional datasets during scientific visualization. To allow this, we view a scientific dataset as a triangulated mesh of data elements, where the attributes embedded in each element form a set of ...	false	false	[ "Jason D. Walter", "Christopher G. Healey" ]	[]	[]	[]
Vis	2,001	Case study on real-time visualization of virtual Tubingen on commodity PC hardware	10.1109/VISUAL.2001.964544	For psychophysical studies in spatial cognition a virtual model of the picturesque old town of Tubingen has been constructed. In order to perform psychophysical experiments in highly realistic virtual environments the model is based on high quality texture maps adding up to several hundreds of MBytes. To accomplish the...	false	false	[ "Michael Meißner", "Jasmina Orman", "Stephan J. Braun" ]	[]	[]	[]
Vis	2,001	Case study: an environment for understanding protein simulations using game graphics	10.1109/VISUAL.2001.964547	We describe a visualization system designed for interactive study of proteins in the field of computational biology. Our system incorporates multiple, custom, three-dimensional and two-dimensional linked views of the proteins. We take advantage of modem commodity graphics cards, which are typically designed for games r...	false	false	[ "Donna L. Gresh", "Frank Suits", "Yuk Yin Sham" ]	[]	[]	[]
Vis	2,001	Case study: application of feature tracking to analysis of autoignition simulation data	10.1109/VISUAL.2001.964551	The focus of this paper is to evaluate the usefulness of some basic feature tracking algorithms as analysis tools for combustion datasets by application to a dataset modeling autoignition. Features defined as areas of high intermediate concentrations were examined to explore the initial phases in the autoignition proce...	false	false	[ "Wendy S. Koegler" ]	[]	[]	[]
Vis	2,001	Case study: interacting with cortical flat maps of the human brain	10.1109/VISUAL.2001.964553	The complex geometry of the human brain contains many folds and fissures, making it impossible to view the entire surface at once. Since most of the cortical activity occurs on these folds, it is desirable to be able to view the entire surface of the brain in a single view. This can be achieved using quasi-conformal fl...	false	false	[ "Monica K. Hurdal", "Kevin W. Kurtz", "David C. Banks" ]	[]	[]	[]
Vis	2,001	Case study: medical Web service for the automatic 3D documentation for neuroradiological diagnosis	10.1109/VISUAL.2001.964542	The case study presents a medical Web service for the automatic analysis of CTA (computer tomography angiography) datasets. It aims at the detection and evaluation of intracranial aneurysms which are malformations of cerebral blood vessels. To obtain a standardized 3D visualization, digital videos are automatically gen...	false	false	[ "Sabine Iserhardt-Bauer", "Peter Hastreiter", "Thomas Ertl", "K. Eberhardt", "Bernd Tomandl" ]	[]	[]	[]
Vis	2,001	Case study: reconstruction, visualization and quantification of neuronal fiber pathways	10.1109/VISUAL.2001.964549	It is of significant interest for neurological studies to determine and visualize neuronal fiber pathways in the human brain. By exploiting the capability of diffusion tensor magnetic resonance imaging to detect local orientations of neuronal fibers, we have developed a system of algorithms to reconstruct, visualize an...	false	false	[ "Zhaohua Ding", "John C. Gore", "Adam W. Anderson" ]	[]	[]	[]
Vis	2,001	Case study: visual debugging of cluster hardware	10.1109/VISUAL.2001.964543	This paper presents a novel use of visualization applied to debugging the Cplant/sup TM/ cluster hardware at Sandia National Laboratories. As commodity cluster systems grow in popularity and grow in size, tracking component failures within the hardware will become more and more difficult. We have developed a tool that ...	false	false	[ "Patricia Crossno", "Rena A. Haynes" ]	[]	[]	[]
Vis	2,001	Case study: visualization of particle track data	10.1109/VISUAL.2001.964552	The Relativistic Heavy Ion Collider (RHIC) experiment at the Brookhaven National Lab is designed to study how the universe came into being. It is believed that after the Big Bang, the universe expanded and cooled, consisting of a soup of quarks, gluons, electrons and neutrinos. As the temperature lowered, electrons com...	false	false	[ "Xiaoming Wei", "Arie E. Kaufman", "Timothy J. Hallman" ]	[]	[]	[]
Vis	2,001	Cell-projection of cyclic meshes	10.1109/VISUAL.2001.964514	We present the first algorithm that employs hardware-accelerated cell-projection for direct volume rendering of cyclic meshes, i.e., meshes with visibility cycles. The visibility sorting of a cyclic mesh is performed by an extended topological sorting, which computes and isolates visibility cycles. Measured sorting tim...	false	false	[ "Martin Kraus", "Thomas Ertl" ]	[]	[]	[]

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