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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
Vis	2,002	Case study: the "Office of Real Soon Now" for visualization	10.1109/VISUAL.2002.1183830	As part of a larger effort exploring alternative display systems, Lawrence Livermore National Laboratory has installed systems in two offices that extend and update the previously described "Office of Real Soon Now" project to improve the value for visualization tasks. These new systems use higher resolution projectors...	false	false	[ "Samuel P. Uselton" ]	[]	[]	[]
Vis	2,002	Case study: Visual debugging of finite element codes	10.1109/VISUAL.2002.1183819	We present an innovative application developed at Sandia National Laboratories for visual debugging of unstructured finite element physics codes. Our tool automatically locates anomalous regions, such as inverted elements or nodes whose variable values lie outside a prescribed range, then extracts mesh subsets around t...	false	false	[ "Patricia Crossno", "David H. Rogers 0001", "Christopher J. Garasi" ]	[]	[]	[]
Vis	2,002	Case study: Visualization and analysis of high Rayleigh number - 3D convection in the Earth's mantle	10.1109/VISUAL.2002.1183813	Data sets from large-scale simulations (up to 501/sup 3/ grid points) of mantle convection are analyzed with volume rendering of the temperature field and a new critical point analysis of the velocity field. As the Rayleigh number Ra is increased the thermal field develops increasingly thin plume-like structures along ...	false	false	[ "Gordon Erlebacher", "David A. Yuen", "Fabien Dubuffet" ]	[]	[]	[]
Vis	2,002	Case study: Visualizing ocean flow vertical motions using Lagrangian-Eulerian time surfaces	10.1109/VISUAL.2002.1183822	Ocean model simulations commonly assume the ocean is hydrostatic, resulting in near zero vertical motion. The vertical motion found is typically associated with the variations of the thermocline depth over time, which are mainly a result of the development and movement of ocean fronts, eddies, and internal waves. A new...	false	false	[ "Josh Grant", "Gordon Erlebacher", "James F. O'Brien" ]	[]	[]	[]
Vis	2,002	Christmas tree case study: computed tomography as a tool for mastering complex real world objects with applications in computer graphics	10.1109/VISUAL.2002.1183812	We report on using computed tomography (CT) as a model acquisition tool for complex objects in computer graphics. Unlike other modeling and scanning techniques the complexity of the object is irrelevant in CT, which naturally enables to model objects with, for example, concavities, holes, twists or fine surface details...	false	false	[ "Armin Kanitsar", "Thomas Theußl", "Lukas Mroz", "Milos Srámek", "Anna Vilanova", "Balázs Csébfalvi", "Jirí Hladuvka", "Dominik Fleischmann", "Michael Knapp", "Rainer Wegenkittl", "Petr Felkel", "Stefan Röttger", "Stefan Guthe", "Werner Purgathofer", "M. Eduard Gröller" ]	[]	[]	[]
Vis	2,002	Comparative evaluation of visualization and experimental results using image comparison metrics	10.1109/VISUAL.2002.1183790	Comparative evaluation of visualization and experimental results is a critical step in computational steering. In this paper, we present a study of image comparison metrics for quantifying the magnitude of difference between visualization of a computer simulation and a photographic image captured from an experiment. We...	false	false	[ "Hualin Zhou", "Min Chen 0001", "Michael F. Webster" ]	[]	[]	[]
Vis	2,002	Compressing polygon mesh geometry with parallelogram prediction	10.1109/VISUAL.2002.1183768	We present a generalization of the geometry coder by Touma and Gotsman (1998) to polygon meshes. We let the polygon information dictate where to apply the parallelogram rule that they use to predict vertex positions. Since polygons tend to be fairly planar and fairly convex, it is beneficial to make predictions within ...	false	false	[ "Martin Isenburg", "Pierre Alliez" ]	[]	[]	[]
Vis	2,002	Computing singularities of 3D vector fields with geometric algebra	10.1109/VISUAL.2002.1183786	Critical points of a vector field are key to their characterization. Their positions as well as their indexes are crucial for understanding vector fields. Considerable work exists in 2D, but less is available for 3D or higher dimensions. Geometric algebra is a derivative of Clifford algebra that not only enables a succ...	false	false	[ "Stephen Mann", "Alyn P. Rockwood" ]	[]	[]	[]
Vis	2,002	CPR - curved planar reformation	10.1109/VISUAL.2002.1183754	Visualization of tubular structures such as blood vessels is an important topic in medical imaging. One way to display tubular structures for diagnostic purposes is to generate longitudinal cross-sections in order to show their lumen, wall, and surrounding tissue in a curved plane. This process is called curved planar ...	false	false	[ "Armin Kanitsar", "Dominik Fleischmann", "Rainer Wegenkittl", "Petr Felkel", "M. Eduard Gröller" ]	[]	[]	[]
Vis	2,002	Direct surface extraction from 3D freehand ultrasound images	10.1109/VISUAL.2002.1183755	This paper presents a new technique for the extraction of surfaces from 3D ultrasound data. Surface extraction from ultrasound data is challenging for a number of reasons including noise and artifacts in the images and nonuniform data sampling. A method is proposed to fit an approximating radial basis function to the g...	false	false	[ "Youwei Zhang", "Robert Rohling", "Dinesh K. Pai" ]	[]	[]	[]
Vis	2,002	Efficient compression and rendering of multi-resolution meshes	10.1109/VISUAL.2002.1183794	We present a method to code the multiresolution structure of a 3D triangle mesh in a manner that allows progressive decoding and efficient rendering at a client machine. The code is based on a special ordering of the mesh vertices which has good locality and continuity properties, inducing a natural multiresolution str...	false	false	[ "Zachi Karni", "Alexander Bogomjakov", "Craig Gotsman" ]	[]	[]	[]
Vis	2,002	Efficient computation of the topology of level sets	10.1109/VISUAL.2002.1183774	This paper introduces two efficient algorithms that compute the Contour Tree of a 3D scalar field /spl Fscr/ and its augmented version with the Betti numbers of each isosurface. The Contour Tree is a fundamental data structure in scientific visualization that is used to preprocess the domain mesh to allow optimal compu...	false	false	[ "Valerio Pascucci", "Kree Cole-McLaughlin" ]	[ "TT" ]	[]	[]
Vis	2,002	Efficient simplification of point-sampled surfaces	10.1109/VISUAL.2002.1183771	We introduce, analyze and quantitatively compare a number of surface simplification methods for point-sampled geometry. We have implemented incremental and hierarchical clustering, iterative simplification, and particle simulation algorithms to create approximations of point-based models with lower sampling density. Al...	false	false	[ "Mark Pauly", "Markus H. Gross", "Leif Kobbelt" ]	[]	[]	[]
Vis	2,002	Evaluation of a multimodal interface for 3D terrain visualization	10.1109/VISUAL.2002.1183802	Novel speech and/or gesture interfaces are candidates for use in future mobile or ubiquitous applications. This paper describes an evaluation of various interfaces for visual navigation of a whole Earth 3D terrain model. A mouse driven interface, a speech interface, a gesture interface, and a multimodal speech and gest...	false	false	[ "David M. Krum", "Olugbenga Omoteso", "William Ribarsky", "Thad Starner", "Larry F. Hodges" ]	[]	[]	[]
Vis	2,002	Exploring scalar fields using critical isovalues	10.1109/VISUAL.2002.1183772	Isosurfaces are commonly used to visualize scalar fields. Critical isovalues indicate isosurface topology changes: the creation of new surface components, merging of surface components or the formation of holes in a surface component. Therefore, they highlight interesting isosurface behavior and are helpful in explorat...	false	false	[ "Gunther H. Weber", "Gerik Scheuermann", "Hans Hagen", "Bernd Hamann" ]	[]	[]	[]
Vis	2,002	Exploring surface characteristics with interactive Gaussian images (a case study)	10.1109/VISUAL.2002.1183828	The Gauss map projects surface normals to a unit sphere, providing a powerful visualization of the geometry of a graphical object. it can be used to predict visual events caused by changes in lighting, shading, and camera control. We present an interactive technique for portraying the Gauss map of polygonal models, map...	false	false	[ "Bradley C. Lowekamp", "Penny Rheingans", "Terry S. Yoo" ]	[]	[]	[]
Vis	2,002	Face-based luminance matching for perceptual colormap generation	10.1109/VISUAL.2002.1183788	Most systems used for creating and displaying colormap-based visualizations are not photometrically calibrated. That is, the relationship between RGB input levels and perceived luminance is usually not known, due to variations in the monitor, hardware configuration, and the viewing environment. However, the luminance c...	false	false	[ "Gordon L. Kindlmann", "Erik Reinhard", "Sarah H. Creem-Regehr" ]	[]	[]	[]
Vis	2,002	Fast and reliable space leaping for interactive volume rendering	10.1109/VISUAL.2002.1183775	We present a fast and reliable space-leaping scheme to accelerate ray casting during interactive navigation in a complex volumetric scene, where we combine innovative space-leaping techniques in a number of ways. First, we derive most of the pixel depths at the current frame by exploiting the temporal coherence during ...	false	false	[ "Ming Wan", "Aamir Sadiq", "Arie E. Kaufman" ]	[]	[]	[]
Vis	2,002	Fast view-dependent level-of-detail rendering using cached geometry	10.1109/VISUAL.2002.1183783	Level-of-detail rendering is essential for rendering very large, detailed worlds in real-time. Unfortunately, level-of-detail computations can be expensive, creating a bottleneck at the CPU. This paper presents the CABTT algorithm, an extension to existing binary-triangle-tree-based level-of-detail algorithms. Instead ...	false	false	[ "Joshua Levenberg" ]	[]	[]	[]
Vis	2,002	Fast visualization of plane-like structures in voxel data	10.1109/VISUAL.2002.1183753	We present a robust, noise-resistant criterion characterizing plane-like skeletons in binary voxel objects. It is based on a distance map and the geodesic distance along the object's boundary. A parameter allows us to control the noise sensitivity. If needed, homotopy with the original object might be reconstructed in ...	false	false	[ "Steffen Prohaska", "Hans-Christian Hege" ]	[]	[]	[]
Vis	2,002	GeneVis: visualization tools for genetic regulatory network dynamics	10.1109/VISUAL.2002.1183781	GeneVis provides a visual environment for exploring the dynamics of genetic regulatory networks. At present time, genetic regulation is the focus of intensive research worldwide, and computational aids are being called for to help in the research of factors that are difficult to observe directly. GeneVis provides a par...	false	false	[ "Charles A. H. Baker", "Sheelagh Carpendale", "Przemyslaw Prusinkiewicz", "Michael G. Surette" ]	[]	[]	[]
Vis	2,002	Geometric surface smoothing via anisotropic diffusion of normals	10.1109/VISUAL.2002.1183766	This paper introduces a method for smoothing complex, noisy surfaces, while preserving (and enhancing) sharp, geometric features. It has two main advantages over previous approaches to feature preserving surface smoothing. First is the use of level set surface models, which allows us to process very complex shapes of a...	false	false	[ "Tolga Tasdizen", "Ross T. Whitaker", "Paul Burchard", "Stanley J. Osher" ]	[]	[]	[]
Vis	2,002	Geometric verification of swirling features in flow fields	10.1109/VISUAL.2002.1183789	In this paper, we present a verification algorithm for swirling features in flow fields, based on the geometry of streamlines. The features of interest in this case are vortices. Without a formal definition, existing detection algorithms lack the ability to accurately identify these features, and the current method for...	false	false	[ "Ming Jiang 0005", "Raghu Machiraju", "David S. Thompson" ]	[]	[]	[]
Vis	2,002	Horizon occlusion culling for real-time rendering of hierarchical terrains	10.1109/VISUAL.2002.1183801	We present a technique to perform occlusion culling for hierarchical terrains at run-time. The algorithm is simple to implement and requires minimal pre-processing and additional storage, yet leads to 2-4 times improvement in framerate for views with high degrees of occlusion. Our method is based on the well-known occl...	false	false	[ "Brandon Lloyd", "Parris K. Egbert" ]	[]	[]	[]
Vis	2,002	Immersive volume visualization of seismic simulations: A case study of techniques invented and lessons learned	10.1109/VISUAL.2002.1183814	This paper is a documentation of techniques invented, results obtained and lessons learned while creating visualization algorithms to render outputs of large-scale seismic simulations. The objective is the development of techniques for a collaborative simulation and visualization shared between structural engineers, se...	false	false	[ "Prashant Chopra", "Jörg Meyer 0003", "Antonio Fernandez" ]	[]	[]	[]
Vis	2,002	Integration of measurement tools in medical 3d visualizations	10.1109/VISUAL.2002.1183752	We discuss 3d interaction techniques for the quantitative analysis of spatial relations in medical visualizations. We describe the design and implementation of measurement tools to measure distances, angles and volumes in 3d visualizations. The visualization of measurement tools as recognizable 3d objects and a 3d inte...	false	false	[ "Bernhard Preim", "Christian Tietjen", "Wolf Spindler", "Heinz-Otto Peitgen" ]	[]	[]	[]
Vis	2,002	Interactive rendering of large volume data sets	10.1109/VISUAL.2002.1183757	We present a new algorithm for rendering very large volume data sets at interactive frame rates on standard PC hardware. The algorithm accepts scalar data sampled on a regular grid as input. The input data is converted into a compressed hierarchical wavelet representation in a preprocessing step. During rendering, the ...	false	false	[ "Stefan Guthe", "Michael Wand 0001", "Julius Gonser", "Wolfgang Straßer" ]	[]	[]	[]
Vis	2,002	Interactive spectral volume rendering	10.1109/VISUAL.2002.1183763	We describe a method for volume rendering using a spectral representation of colour instead of the traditional RGB model. It is shown how to use this framework for a novel exploration of datasets through enhanced transfer function design. Furthermore, our framework is extended to allow real-time re-lighting of the scen...	false	false	[ "Steven Bergner", "Torsten Möller", "Mark S. Drew", "Graham D. Finlayson" ]	[]	[]	[]
Vis	2,002	Interactive translucent volume rendering and procedural modeling	10.1109/VISUAL.2002.1183764	Direct volume rendering is a commonly used technique in visualization applications. Many of these applications require sophisticated shading models to capture subtle lighting effects and characteristics of volumetric data and materials. Many common objects and natural phenomena exhibit visual quality that cannot be cap...	false	false	[ "Joe Michael Kniss", "Simon Premoze", "Charles D. Hansen", "David S. Ebert" ]	[]	[]	[]
Vis	2,002	Interactive view-dependent rendering of large isosurfaces	10.1109/VISUAL.2002.1183810	We present an algorithm for interactively extracting and rendering isosurfaces of large volume datasets in a view-dependent fashion. A recursive tetrahedral mesh refinement scheme, based on longest edge bisection, is used to hierarchically decompose the data into a multiresolution structure. This data structure allows ...	false	false	[ "Benjamin F. Gregorski", "Mark A. Duchaineau", "Peter Lindstrom 0001", "Valerio Pascucci", "Kenneth I. Joy" ]	[]	[]	[]
Vis	2,002	Interactive visualization of complex plant ecosystems	10.1109/VISUAL.2002.1183778	We present a method for interactive rendering of large outdoor scenes. Complex polygonal plant models and whole plant populations are represented by relatively small sets of point and line primitives. This enables us to show landscapes faithfully using only a limited percentage of primitives. In addition, a hierarchica...	false	false	[ "Oliver Deussen", "Carsten Colditz", "Marc Stamminger", "George Drettakis" ]	[]	[]	[]
Vis	2,002	Isometric embedding by surface reconstruction from distances	10.1109/VISUAL.2002.1183782	To display the intuitive meaning of an abstract metric it is helpful to look on an embedded surface with the same inner geometry as the given metric. The resulting partial differential equations have no standard solution. Only for some special cases satisfactory methods are known. I present a new algorithmic approach w...	false	false	[ "Ingrid Hotz" ]	[]	[]	[]
Vis	2,002	Kinetic visualization: a technique for illustrating 3D shape and structure	10.1109/VISUAL.2002.1183805	Motion provides strong visual cues for the perception of shape and depth, as demonstrated by cognitive scientists and visual artists. This paper presents a novel visualization technique-kinetic visualization -that uses particle systems to add supplemental motion cues which can aid in the perception of shape and spatial...	false	false	[ "Eric B. Lum", "Aleksander Stompel", "Kwan-Liu Ma" ]	[]	[]	[]
Vis	2,002	Level set segmentation from multiple non-uniform volume datasets	10.1109/VISUAL.2002.1183773	Typically 3-D MR and CT scans have a relatively high resolution in the scanning X-Y plane, but much lower resolution in the axial Z direction. This non-uniform sampling of an object can miss small or thin structures. One way to address this problem is to scan the same object from multiple directions. In this paper we d...	false	false	[ "Ken Museth", "David E. Breen", "Leonid Zhukov", "Ross T. Whitaker" ]	[]	[]	[]
Vis	2,002	Maximum entropy light source placement	10.1109/VISUAL.2002.1183785	Finding the "best" viewing parameters for a scene is a difficult but very important problem. Fully automatic procedures seem to be impossible as the notion of "best" strongly depends on human judgment as well as on the application. In this paper a solution to the sub-problem of placing light sources for given camera pa...	false	false	[ "Stefan Gumhold" ]	[]	[]	[]
Vis	2,002	NASA's great zooms: a case study	10.1109/VISUAL.2002.1183825	This paper examines a series of NASA outreach visualizations created using several layers of remote sensing satellite data ranging from 4-kilometers per pixel to I-meter per pixel. The viewer is taken on a seamless, cloud free journey from a global view of the Earth down to ground level where buildings, streets, and ca...	false	false	[ "Gregory W. Shirah", "Horace Mitchell" ]	[]	[]	[]
Vis	2,002	Non-photorealistic volume rendering using stippling techniques	10.1109/VISUAL.2002.1183777	Simulating hand-drawn illustration techniques can succinctly express information in a manner that is communicative and informative. We present a framework for an interactive direct volume illustration system that simulates traditional stipple drawing. By combining the principles of artistic and scientific illustration,...	false	false	[ "Aidong Lu", "Christopher J. Morris 0001", "David S. Ebert", "Penny Rheingans", "Charles D. Hansen" ]	[ "BP" ]	[]	[]
Vis	2,002	Optimized view-dependent rendering for large polygonal datasets	10.1109/VISUAL.2002.1183760	In this paper we are presenting a novel approach for rendering large datasets in a view-dependent manner. In a typical view-dependent rendering framework, an appropriate level of detail is selected and sent to the graphics hardware for rendering at each frame. In our approach, we have successfully managed to speed up t...	false	false	[ "Jihad El-Sana", "Eitan Bachmant" ]	[]	[]	[]
Vis	2,002	Oriented tensor reconstruction: tracing neural pathways from diffusion tensor MRI	10.1109/VISUAL.2002.1183799	In this paper we develop a new technique for tracing anatomical fibers from 3D tensor fields. The technique extracts salient tensor features using a local regularization technique that allows the algorithm to cross noisy regions and bridge gaps in the data. We applied the method to human brain DT-MRI data and recovered...	false	false	[ "Leonid Zhukov", "Alan H. Barr" ]	[]	[]	[]
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" ]	[]	[]	[]

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