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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	2,003	A texture-based framework for spacetime-coherent visualization of time-dependent vector fields	10.1109/VISUAL.2003.1250361	We propose unsteady flow advection-convolution (UFAC) as a novel visualization approach for unsteady flows. It performs time evolution governed by pathlines, but builds spatial correlation according to instantaneous streamlines whose spatial extent is controlled by the flow unsteadiness. UFAC is derived from a generic ...	false	false	[ "Daniel Weiskopf", "Gordon Erlebacher", "Thomas Ertl" ]	[]	[]	[]
Vis	2,003	A visual exploration process for the analysis of Internet routing data	10.1109/VISUAL.2003.1250415	The Internet pervades many aspects of our lives and is becoming indispensable to critical functions in areas such as commerce, government, production and general information dissemination. To maintain the stability and efficiency of the Internet, every effort must be made to protect it against various forms of attacks,...	false	false	[ "Soon Tee Teoh", "Kwan-Liu Ma", "Shyhtsun Felix Wu" ]	[]	[]	[]
Vis	2,003	Accelerating large data analysis by exploiting regularities	10.1109/VISUAL.2003.1250420	We present techniques for discovering and exploiting regularity in large curvilinear data sets. The data can be based on a single mesh or a mesh composed of multiple submeshes (also known as zones). Multi-zone data are typical in Computational Fluid Dynamics (CFD) simulations. Regularities include axis-aligned rectilin...	false	false	[ "David Ellsworth", "Patrick J. Moran" ]	[]	[]	[]
Vis	2,003	Acceleration techniques for GPU-based volume rendering	10.1109/VISUAL.2003.1250384	Nowadays, direct volume rendering via 3D textures has positioned itself as an efficient tool for the display and visual analysis of volumetric scalar fields. It is commonly accepted, that for reasonably sized data sets appropriate quality at interactive rates can be achieved by means of this technique. However, despite...	false	false	[ "Jens H. Krüger", "Rüdiger Westermann" ]	[ "TT" ]	[]	[]
Vis	2,003	Adaptive design of a global opacity transfer function for direct volume rendering of ultrasound data	10.1109/VISUAL.2003.1250411	While there are a couple of transfer function design approaches for CT and MRI (magnetic resonance imaging) data, direct volume rendering of ultrasound data still relies on manual adjustment of an inflexible piecewise linear opacity transfer function (OTF) on a trial-and-error basis. The main challenge of automatically...	false	false	[ "Dieter Hönigmann", "Johannes Ruisz", "Christoph Haider" ]	[]	[]	[]
Vis	2,003	Advanced curved planar reformation: flattening of vascular structures	10.1109/VISUAL.2003.1250353	Traditional volume visualization techniques may provide incomplete clinical information needed for applications in medical visualization. In the area of vascular visualization important features such as the lumen of a diseased vessel segment may not be visible. Curved planar reformation (CPR) has proven to be an accept...	false	false	[ "Armin Kanitsar", "Rainer Wegenkittl", "Dominik Fleischmann", "M. Eduard Gröller" ]	[]	[]	[]
Vis	2,003	Appearance-preserving view-dependent visualization	10.1109/VISUAL.2003.1250409	In this paper a new quadric-based view-dependent simplification scheme is presented. The scheme provides a method to connect mesh simplification controlled by a quadric error metric with a level-of-detail hierarchy that is accessed continuously and efficiently based on current view parameters. A variety of methods for ...	false	false	[ "Justin Jang", "William Ribarsky", "Chris Shaw 0002", "Peter Wonka" ]	[]	[]	[]
Vis	2,003	Chameleon: an interactive texture-based rendering framework for visualizing three-dimensional vector fields	10.1109/VISUAL.2003.1250378	In this paper we present an interactive texture-based technique for visualizing three-dimensional vector fields. The goal of the algorithm is to provide a general volume rendering framework allowing the user to compute three-dimensional flow textures interactively, and to modify the appearance of the visualization on t...	false	false	[ "Guo-Shi Li", "Udeepta Bordoloi", "Han-Wei Shen" ]	[]	[]	[]
Vis	2,003	Clifford convolution and pattern matching on vector fields	10.1109/VISUAL.2003.1250372	The goal of this paper is to define a convolution operation which transfers image processing and pattern matching to vector fields from flow visualization. For this, a multiplication of vectors is necessary. Clifford algebra provides such a multiplication of vectors. We define a Clifford convolution on vector fields wi...	false	false	[ "Julia Ebling", "Gerik Scheuermann" ]	[]	[]	[]
Vis	2,003	Compression domain volume rendering	10.1109/VISUAL.2003.1250385	A survey of graphics developers on the issue of texture mapping hardware for volume rendering would most likely find that the vast majority of them view limited texture memory as one of the most serious drawbacks of an otherwise fine technology. In this paper, we propose a compression scheme for static and time-varying...	false	false	[ "Jens Schneider 0002", "Rüdiger Westermann" ]	[]	[]	[]
Vis	2,003	Conveying shape and features with image-based relighting	10.1109/VISUAL.2003.1250392	Hand-crafted illustrations are often more effective than photographs for conveying the shape and important features of an object, but they require expertise and time to produce. We describe an image compositing system and user interface that allow an artist to quickly and easily create technical illustrations from a se...	false	false	[ "David Akers", "Frank Losasso", "Jeff Klingner", "Maneesh Agrawala", "John Rick", "Pat Hanrahan" ]	[]	[]	[]
Vis	2,003	Counting cases in marching cubes: toward a generic algorithm for producing substitopes	10.1109/VISUAL.2003.1250354	We describe how to count the cases that arise in a family of visualization techniques, including marching cubes, sweeping simplices, contour meshing, interval volumes, and separating surfaces. Counting the cases is the first step toward developing a generic visualization algorithm to produce substitopes (geometric subs...	false	false	[ "David C. Banks", "Stephen A. Linton" ]	[ "BP" ]	[]	[]
Vis	2,003	Curvature-based transfer functions for direct volume rendering: methods and applications	10.1109/VISUAL.2003.1250414	Direct volume rendering of scalar fields uses a transfer function to map locally measured data properties to opacities and colors. The domain of the transfer function is typically the one-dimensional space of scalar data values. This paper advances the use of curvature information in multi-dimensional transfer function...	false	false	[ "Gordon L. Kindlmann", "Ross T. Whitaker", "Tolga Tasdizen", "Torsten Möller" ]	[]	[]	[]
Vis	2,003	Do I really see a bone?	10.1109/VISUAL.2003.1250429	Raw data from scanners and simulations has insight embedded within it. However, there is a need to explicitly glean the insight from the data or a version of it. Visualization algorithms and methods are designed just to do that. What insight is to be gleaned depends on the data, its use, and the medium of display. Thus...	false	false	[ "Raghu Machiraju", "Christopher R. Johnson 0001", "Terry S. Yoo", "Roger Crawfis", "David S. Ebert", "Don Stredney" ]	[]	[]	[]
Vis	2,003	Effectively visualizing multi-valued flow data using color and texture	10.1109/VISUAL.2003.1250362	In this paper we offer several new insights and techniques for effectively using color and texture to simultaneously convey information about multiple 2D scalar and vector distributions, in a way that facilitates allowing each distribution to be understood both individually and in the context of one or more of the othe...	false	false	[ "Timothy Urness", "Victoria Interrante", "Ivan Marusic", "Ellen Longmire", "Bharathram Ganapathisubramani" ]	[]	[]	[]
Vis	2,003	Empty space skipping and occlusion clipping for texture-based volume rendering	10.1109/VISUAL.2003.1250388	We propose methods to accelerate texture-based volume rendering by skipping invisible voxels. We partition the volume into sub-volumes, each containing voxels with similar properties. Sub-volumes composed of only voxels mapped to empty by the transfer function are skipped. To render the adaptively partitioned sub-volum...	false	false	[ "Wei Li 0004", "Klaus Mueller 0001", "Arie E. Kaufman" ]	[]	[]	[]
Vis	2,003	Exploring curved anatomic structures with surface sections	10.1109/VISUAL.2003.1250351	The extraction of planar sections from volume images is the most commonly used technique for inspecting and visualizing anatomic structures. We propose to generalize the concept of planar section to the extraction of curved cross-sections (free form surfaces). Compared with planar slices, curved cross-sections may easi...	false	false	[ "Laurent Saroul", "Sebastian Gerlach", "Roger D. Hersch" ]	[]	[]	[]
Vis	2,003	Extraction of topologically simple isosurfaces from volume datasets	10.1109/VISUAL.2003.1250356	There are numerous algorithms in graphics and visualization whose performance is known to decay as the topological complexity of the input increases. On the other hand, the standard pipeline for 3D geometry acquisition often produces 3D models that are topologically more complex than their real forms. We present a simp...	false	false	[ "Andrzej Szymczak", "James Vanderhyde" ]	[]	[]	[]
Vis	2,003	Fairing scalar fields by variational modeling of contours	10.1109/VISUAL.2003.1250398	Volume rendering and isosurface extraction from three-dimensional scalar fields are mostly based on piecewise trilinear representations. In regions of high geometric complexity such visualization methods often exhibit artifacts, due to trilinear interpolation. In this work, we present an iterative fairing method for sc...	false	false	[ "Martin Hering-Bertram" ]	[]	[]	[]
Vis	2,003	Fast volume segmentation with simultaneous visualization using programmable graphics hardware	10.1109/VISUAL.2003.1250369	Segmentation of structures from measured volume data, such as anatomy in medical imaging, is a challenging data-dependent task. In this paper, we present a segmentation method that leverages the parallel processing capabilities of modern programmable graphics hardware in order to run significantly faster than previous ...	false	false	[ "Anthony J. Sherbondy", "Michael Houston", "Sandy Napel" ]	[]	[]	[]
Vis	2,003	Feature-sensitive subdivision and isosurface reconstruction	10.1109/VISUAL.2003.1250360	We present improved subdivision and isosurface reconstruction algorithms for polygonizing implicit surfaces and performing accurate geometric operations. Our improved reconstruction algorithm uses directed distance fields (Kobbelt et al., 2001) to detect multiple intersections along an edge, separates them into compone...	false	false	[ "Gokul Varadhan", "Shankar Krishnan", "Young J. Kim", "Dinesh Manocha" ]	[]	[]	[]
Vis	2,003	Feature-space analysis of unstructured meshes	10.1109/VISUAL.2003.1250371	Unstructured meshes are often used in simulations and imaging applications. They provide advanced flexibility in modeling abilities but are more difficult to manipulate and analyze than regular data. This work provides a novel approach for the analysis of unstructured meshes using feature-space clustering and feature-d...	false	false	[ "Ariel Shamir" ]	[]	[]	[]
Vis	2,003	Gaussian transfer functions for multi-field volume visualization	10.1109/VISUAL.2003.1250412	Volume rendering is a flexible technique for visualizing dense 3D volumetric datasets. A central element of volume rendering is the conversion between data values and observable quantities such as color and opacity. This process is usually realized through the use of transfer functions that are precomputed and stored i...	false	false	[ "Joe Michael Kniss", "Simon Premoze", "Milan Ikits", "Aaron E. Lefohn", "Charles D. Hansen", "Emil Praun" ]	[]	[]	[]
Vis	2,003	Hardware-based nonlinear filtering and segmentation using high-level shading languages	10.1109/VISUAL.2003.1250387	Non-linear filtering is an important task for volume analysis. This paper presents hardware-based implementations of various non-linear filters for volume smoothing with edge preservation. The Cg high-level shading language is used in combination with latest PC consumer graphics hardware. Filtering is divided into perv...	false	false	[ "Ivan Viola", "Armin Kanitsar", "M. Eduard Gröller" ]	[]	[]	[]
Vis	2,003	Hardware-based ray casting for tetrahedral meshes	10.1109/VISUAL.2003.1250390	We present the first implementation of a volume ray casting algorithm for tetrahedral meshes running on off-the-shelf programmable graphics hardware. Our implementation avoids the memory transfer bottleneck of the graphics bus since the complete mesh data is stored in the local memory of the graphics adapter and all co...	false	false	[ "Manfred Weiler", "Martin Kraus", "Markus Merz", "Thomas Ertl" ]	[]	[]	[]
Vis	2,003	Heart-muscle fiber reconstruction from diffusion tensor MRI	10.1109/VISUAL.2003.1250425	In this paper we use advanced tensor visualization techniques to study 3D diffusion tensor MRI data of a heart. We use scalar and tensor glyph visualization methods to investigate the data and apply a moving least squares (MLS) fiber tracing method to recover and visualize the helical structure and the orientation of t...	false	false	[ "Leonid Zhukov", "Alan H. Barr" ]	[]	[]	[]
Vis	2,003	Hierarchical clustering for unstructured volumetric scalar fields	10.1109/VISUAL.2003.1250389	We present a method to represent unstructured scalar fields at multiple levels of detail. Using a parallelizable classification algorithm to build a cluster hierarchy, we generate a multiresolution representation of a given volumetric scalar data set. The method uses principal component analysis (PCA) for cluster gener...	false	false	[ "Christopher S. Co", "Bjørn Heckel", "Hans Hagen", "Bernd Hamann", "Kenneth I. Joy" ]	[]	[]	[]
Vis	2,003	Hierarchical splatting of scattered data	10.1109/VISUAL.2003.1250404	Numerical particle simulations and astronomical observations create huge data sets containing uncorrelated 3D points of varying size. These data sets cannot be visualized interactively by simply rendering millions of colored points for each frame. Therefore, in many visualization applications a scalar density correspon...	false	false	[ "Matthias Hopf", "Thomas Ertl" ]	[]	[]	[]
Vis	2,003	High dimensional direct rendering of time-varying volumetric data	10.1109/VISUAL.2003.1250402	We present an alternative method for viewing time-varying volumetric data. We consider such data as a four-dimensional data field, rather than considering space and time as separate entities. If we treat the data in this manner, we can apply high dimensional slicing and projection techniques to generate an image hyperp...	false	false	[ "Jonathan Woodring", "Chaoli Wang 0001", "Han-Wei Shen" ]	[]	[]	[]
Vis	2,003	High-quality two-level volume rendering of segmented data sets on consumer graphics hardware	10.1109/VISUAL.2003.1250386	One of the most important goals in volume rendering is to be able to visually separate and selectively enable specific objects of interest contained in a single volumetric data set, which can be approached by using explicit segmentation information. We show how segmented data sets can be rendered interactively on curre...	false	false	[ "Markus Hadwiger", "Christoph Berger", "Helwig Hauser" ]	[]	[]	[]
Vis	2,003	Holographic video display of time-series volumetric medical data	10.1109/VISUAL.2003.1250424	We describe an animated electro-holographic visualization of brain lesions due to the progression of multiple sclerosis. A research case study is used which documents the expression of visible brain lesions in a series of magnetic resonance imaging (MRI) volumes collected over the interval of one year. Some of the sali...	false	false	[ "Wendy Plesniak", "Michael Halle", "Steven D. Pieper", "William M. Wells III", "Marianna Jakab", "Dominik S. Meier", "Stephen A. Benton", "Charles R. G. Guttmann", "Ron Kikinis" ]	[]	[]	[]
Vis	2,003	Hybrid segmentation and exploration of the human lungs	10.1109/VISUAL.2003.1250370	Segmentation of the tracheo-bronchial tree of the lungs is notoriously difficult. This is due to the fact that the small size of some of the anatomical structures is subject to partial volume effects. Furthermore, the limited intensity contrast between the participating materials (air, blood, and tissue) increases the ...	false	false	[ "Dirk Bartz", "Dirk Mayer", "Jan Fischer", "Sebastian Ley", "Ángel del Río", "Steffi Thust", "Claus Peter Heussel", "Hans-Ulrich Kauczor", "Wolfgang Straßer" ]	[]	[]	[]
Vis	2,003	HyperLIC	10.1109/VISUAL.2003.1250379	We introduce a new method for visualizing symmetric tensor fields. The technique produces images and animations reminiscent of line integral convolution (LIC). The technique is also slightly related to hyperstreamlines in that it is used to visualize tensor fields. However, the similarity ends there. HyperLIC uses a mu...	false	false	[ "Xiaoqiang Zheng", "Alex T. Pang" ]	[]	[]	[]
Vis	2,003	IEEE Visualization 2003 (IEEE Cat. No.03CH37496)	10.1109/VISUAL.2003.1250348	The following topics are dealt with: medical visualization; isosurfaces; implicit surfaces; flow visualization; terrains and view-dependent methods; segmentation and feature analysis; haptics and physical simulation; hardware-assisted volume rendering; volume rendering acceleration; shading and shape perception; volume...	false	false	[ "Greg Turk", "Jarke J. van Wijk", "Robert J. Moorhead II" ]	[]	[]	[]
Vis	2,003	Image based flow visualization for curved surfaces	10.1109/VISUAL.2003.1250363	A new method for the synthesis of dense, vector-field aligned textures on curved surfaces is presented, called IBFVS. The method is based on image based flow visualization (IBFV). In IBFV two-dimensional animated textures are produced by defining each frame of a flow animation as a blend between a warped version of the...	false	false	[ "Jarke J. van Wijk" ]	[]	[]	[]
Vis	2,003	Image space based visualization of unsteady flow on surfaces	10.1109/VISUAL.2003.1250364	We present a technique for direct visualization of unsteady flow on surfaces from computational fluid dynamics. The method generates dense representations of time-dependent vector fields with high spatio-temporal correlation using both Lagrangian-Eulerian advection and image based flow visualization as its foundation. ...	false	false	[ "Robert S. Laramee", "Bruno Jobard", "Helwig Hauser" ]	[]	[]	[]
Vis	2,003	Information and scientific visualization: separate but equal or happy together at last	10.1109/VISUAL.2003.1250428	Must we continue to define a difference between information and scientific visualization? Scientific visualization evolved first in the late 1980’s while information visualization matured in the mid-1990’s. Scientific visualization is frequently considered to focus on the visual display of spatial data associated with ...	false	false	[ "Theresa-Marie Rhyne", "Melanie Tory", "Tamara Munzner", "Matthew O. Ward", "Christopher R. Johnson 0001", "David H. Laidlaw" ]	[]	[]	[]
Vis	2,003	Interactive 3D visualization of rigid body systems	10.1109/VISUAL.2003.1250417	Simulation of rigid body dynamics has been a field of active research for quite some time. However, the presentation of simulation results has received far less attention so far. We present an interactive and intuitive 3D visualization framework for rigid body simulation data. We introduce various glyphs representing v...	false	false	[ "Zoltan Konyha", "Kresimir Matkovic", "Helwig Hauser" ]	[]	[]	[]
Vis	2,003	Interactive deformation and visualization of level set surfaces using graphics hardware	10.1109/VISUAL.2003.1250357	Deformable isosurfaces, implemented with level-set methods, have demonstrated a great potential in visualization for applications such as segmentation, surface processing, and surface reconstruction. Their usefulness has been limited, however, by their high computational cost and reliance on significant parameter tunin...	false	false	[ "Aaron E. Lefohn", "Joe Michael Kniss", "Charles D. Hansen", "Ross T. Whitaker" ]	[]	[]	[]
Vis	2,003	Interactive protein manipulation	10.1109/VISUAL.2003.1250423	We describe an interactive visualization and modeling program for the creation of protein structures "from scratch." The input to our program is an amino acid sequence - decoded from a gene - and a sequence of predicted secondary structure types for each amino acid - provided by external structure prediction programs. ...	false	false	[ "Oliver Kreylos", "Nelson L. Max", "Bernd Hamann", "Silvia N. Crivelli", "E. Wes Bethel" ]	[ "BA" ]	[]	[]
Vis	2,003	Interactive view-dependent rendering with conservative occlusion culling in complex environments	10.1109/VISUAL.2003.1250368	This paper presents an algorithm combining view-dependent rendering and conservative occlusion culling for interactive display of complex environments. A vertex hierarchy of the entire scene is decomposed into a cluster hierarchy through a novel clustering and partitioning algorithm. The cluster hierarchy is then used ...	false	false	[ "Sung-Eui Yoon", "Brian Salomon", "Dinesh Manocha" ]	[]	[]	[]
Vis	2,003	Interoperability of visualization software and data models is not an achievable goal	10.1109/VISUAL.2003.1250427	Author(s): Bethel, E. Wes \| Abstract: The scientific visualization community faces a crisis: there exist many individual tools that can be used to perform visualization, but there is little, if any, hope of being able to use tools from different sources as part of a single application. As a result, our community is fra...	false	false	[ "E. Wes Bethel", "Greg Abram", "John Shalf", "Randy Frank", "James P. Ahrens", "Steven G. Parker", "Nagiza F. Samatova", "Mark C. Miller" ]	[]	[]	[]
Vis	2,003	Large mesh simplification using processing sequences	10.1109/VISUAL.2003.1250408	In this paper we show how out-of-core mesh processing techniques can be adapted to perform their computations based on the new processing sequence paradigm (Isenburg, et al., 2003), using mesh simplification as an example. We believe that this processing concept will also prove useful for other tasks, such a parameteri...	false	false	[ "Martin Isenburg", "Peter Lindstrom 0001", "Stefan Gumhold", "Jack Snoeyink" ]	[]	[]	[]
Vis	2,003	LightKit: a lighting system for effective visualization	10.1109/VISUAL.2003.1250395	LightKit is a system for lighting three-dimensional synthetic scenes. LightKit simplifies the task of producing visually pleasing, easily interpretable images for visualization while making it harder to produce results where the scene illumination distracts from the visualization process. LightKit is based on lighting ...	false	false	[ "Michael Halle", "Jeanette C. Meng" ]	[]	[]	[]
Vis	2,003	MC*: star functions for marching cubes	10.1109/VISUAL.2003.1250355	We describe a modification of the widely used marching cubes method that leads to the useful property that the resulting isosurfaces are locally single valued functions. This implies that conventional interpolation and approximation methods can be used to locally represent the surface. These representations can be used...	false	false	[ "Gregory M. Nielson" ]	[]	[]	[]
Vis	2,003	Mental registration of 2D and 3D visualizations (an empirical study)	10.1109/VISUAL.2003.1250396	2D and 3D views are used together in many visualization domains, such as medical imaging, flow visualization, oceanographic visualization, and computer aided design (CAD). Combining these views into one display can be done by: (1) orientation icon (i.e., separate windows), (2) in-place methods (e.g., clip and cutting p...	false	false	[ "Melanie Tory" ]	[]	[]	[]
Vis	2,003	Monte Carlo volume rendering	10.1109/VISUAL.2003.1250406	In this paper a novel volume-rendering technique based on Monte Carlo integration is presented. As a result of a preprocessing, a point cloud of random samples is generated using a normalized continuous reconstruction of the volume as a probability density function. This point cloud is projected onto the image plane, a...	false	false	[ "Balázs Csébfalvi", "László Szirmay-Kalos" ]	[]	[]	[]
Vis	2,003	Out-of-core isosurface extraction of time-varying fields over irregular grids	10.1109/VISUAL.2003.1250375	In this paper, we propose a novel out-of-core isosurface extraction technique for large time-varying fields over irregular grids. We employ our meta-cell technique to explore the spatial coherence of the data, and our time tree algorithm to consider the temporal coherence as well. Our one-time preprocessing phase first...	false	false	[ "Yi-Jen Chiang" ]	[]	[]	[]
Vis	2,003	Piecewise C¹ continuous surface reconstruction of noisy point clouds via local implicit quadric regression	10.1109/VISUAL.2003.1250359	This paper addresses the problem of surface reconstruction of highly noisy point clouds. The surfaces to be reconstructed are assumed to be 2-manifolds of piecewise C/sup 1/ continuity, with isolated small irregular regions of high curvature, sophisticated local topology or abrupt burst of noise. At each sample point, ...	false	false	[ "Hui Xie 0001", "Jianning Wang", "Jing Hua 0001", "Hong Qin", "Arie E. Kaufman" ]	[]	[]	[]
Vis	2,003	Planet-sized batched dynamic adaptive meshes (P-BDAM)	10.1109/VISUAL.2003.1250366	We describe an efficient technique for out-of-core management and interactive rendering of planet sized textured terrain surfaces. The technique, called planet-sized batched dynamic adaptive meshes (P-BDAM), extends the BDAM approach by using as basic primitive a general triangulation of points on a displaced triangle....	false	false	[ "Paolo Cignoni", "Fabio Ganovelli", "Enrico Gobbetti", "Fabio Marton", "Federico Ponchio", "Roberto Scopigno" ]	[]	[]	[]
Vis	2,003	Producing high-quality visualizations of large-scale simulation	10.1109/VISUAL.2003.1250422	This paper describes the work of a team of researchers in computer graphics, geometric computing, and civil engineering to produce a visualization of the September 2001 attack on the Pentagon. The immediate motivation for the project was to understand the behavior of the building under the impact. The longer term motiv...	false	false	[ "Voicu Popescu", "Christoph M. Hoffmann", "Sami Kilic", "Mete Sozen", "Scott Meador" ]	[]	[]	[]
Vis	2,003	Psychophysical scaling of a cardiovascular information display	10.1109/VISUAL.2003.1250352	A new method was developed to increase the saliency of changing variables in a cardiovascular visualization for use by anesthesiologists in the operating room (OR). Clinically meaningful changes in patient physiology were identified and then mapped to the inherent psychophysical properties of the visualization. A long ...	false	false	[ "Robert Albert", "Noah Syroid", "Yinqi Zhang", "James Agutter", "Frank Drews", "David L. Strayer", "George Hutchinson", "Dwayne R. Westenskow" ]	[]	[]	[]
Vis	2,003	Quasi-static approach approximation for 6 degrees-of-freedom haptic rendering	10.1109/VISUAL.2003.1250380	In this paper, we propose a quasi-static approximation (QSA) approach to simulate the movement of the movable object in 6-degrees-of-freedom (DOF) haptic rendering. In our QSA approach, we solve for static equilibrium during each haptic time step, ignoring any dynamical properties such as inertia. The major contributio...	false	false	[ "Ming Wan", "William A. McNeely" ]	[]	[]	[]
Vis	2,003	Real-time refinement and simplification of adaptive triangular meshes	10.1109/VISUAL.2003.1250367	In this paper we present a generic method for incremental mesh adaptation based on hierarchy of semi-regular meshes. Our method supports any refinement rule mapping vertices onto vertices such as 1-to-4 split or /spl radic/3-subdivision. Resulting adaptive mesh has subdivision connectivity and hence good aspect ratio o...	false	false	[ "Vasily Volkov", "Ling Li 0006" ]	[]	[]	[]
Vis	2,003	Saddle connectors - an approach to visualizing the topological skeleton of complex 3D vector fields	10.1109/VISUAL.2003.1250376	One of the reasons that topological methods have a limited popularity for the visualization of complex 3D flow fields is the fact that such topological structures contain a number of separating stream surfaces. Since these stream surfaces tend to hide each other as well as other topological features, for complex 3D top...	false	false	[ "Holger Theisel", "Tino Weinkauf", "Hans-Christian Hege", "Hans-Peter Seidel" ]	[]	[]	[]
Vis	2,003	Shape simplification based on the medial axis transform	10.1109/VISUAL.2003.1250410	We present a new algorithm for simplifying the shape of 3D objects by manipulating their medial axis transform (MAT). From an unorganized set of boundary points, our algorithm computes the MAT, decomposes the axis into parts, then selectively removes a subset of these parts in order to reduce the complexity of the over...	false	false	[ "Roger C. Tam", "Wolfgang Heidrich" ]	[]	[]	[]
Vis	2,003	Signed distance transform using graphics hardware	10.1109/VISUAL.2003.1250358	This paper presents a signed distance transform algorithm using graphics hardware, which computes the scalar valued function of the Euclidean distance to a given manifold of co-dimension one. If the manifold is closed and orientable, the distance has a negative sign on one side of the manifold and a positive sign on th...	false	false	[ "Christian Sigg", "Ronald Peikert", "Markus H. Gross" ]	[]	[]	[]
Vis	2,003	Space efficient fast isosurface extraction for large datasets	10.1109/VISUAL.2003.1250373	In this paper, we present a space efficient algorithm for speeding up isosurface extraction. Even though there exist algorithms that can achieve optimal search performance to identify isosurface cells, they prove impractical for large datasets due to a high storage overhead. With the dual goals of achieving fast isosur...	false	false	[ "Udeepta Bordoloi", "Han-Wei Shen" ]	[]	[]	[]
Vis	2,003	The visualization market: open source vs. commercial approaches	10.1109/VISUAL.2003.1250350	This forum examines the question of when commercial software makes sense and when open-source software is more appropriate. Visualization software runs the gamut from very general-purpose applications intended for the graphically challenged to highly specific software libraries intended for the sophisticated visualizat...	false	false	[ "Jeremy Jaech", "Stephen C. North", "Mike Peery", "Will Schroeder", "James J. Thomas" ]	[]	[]	[]
Vis	2,003	Using deformations for browsing volumetric data	10.1109/VISUAL.2003.1250400	Many traditional techniques for "looking inside" volumetric data involve removing portions of the data, for example using various cutting tools, to reveal the interior. This allows the user to see hidden parts of the data, but has the disadvantage of removing potentially important surrounding contextual information. We...	false	false	[ "Michael J. McGuffin", "Liviu Tancau", "Ravin Balakrishnan" ]	[]	[]	[]
Vis	2,003	Vicinity shading for enhanced perception of volumetric data	10.1109/VISUAL.2003.1250394	This paper presents a shading model for volumetric data which enhances the perception of surfaces within the volume. The model incorporates uniform diffuse illumination, which arrives equally from all directions at each surface point in the volume. This illumination is attenuated by occlusions in the local vicinity of ...	false	false	[ "A. James Stewart" ]	[]	[]	[]
Vis	2,003	Video visualization	10.1109/VISUAL.2003.1250401	Video data, generated by the entertainment industry, security and traffic cameras, video conferencing systems, video emails, and so on, is perhaps most time-consuming to process by human beings. In this paper, we present a novel methodology for "summarizing" video sequences using volume visualization techniques. We out...	false	false	[ "Gareth Daniel", "Min Chen 0001" ]	[]	[]	[]
Vis	2,003	Visibility based methods and assessment for detail-recovery	10.1109/VISUAL.2003.1250407	In this paper we propose a new method for the creation of normal maps for recovering the detail on simplified meshes and a set of objective techniques to metrically evaluate the quality of different recovering techniques. The proposed techniques, that automatically produces a normal-map texture for a simple 3D model th...	false	false	[ "Marco Tarini", "Paolo Cignoni", "Roberto Scopigno" ]	[]	[]	[]
Vis	2,003	Visibility culling using plenoptic opacity functions for large volume visualization	10.1109/VISUAL.2003.1250391	Visibility culling has the potential to accelerate large data visualization in significant ways. Unfortunately, existing algorithms do not scale well when parallelized, and require full re-computation whenever the opacity transfer function is modified. To address these issues, we have designed a Plenoptic Opacity Funct...	false	false	[ "Jinzhu Gao", "Jian Huang 0007", "Han-Wei Shen", "James Arthur Kohl" ]	[]	[]	[]
Vis	2,003	Visualization experiences and issues in deep space exploration	10.1109/VISUAL.2003.1250430	Visualization tools play a key role in the exploration of outer space. Since it is difficult and expensive to send humans to other planets, immersive visualization of such hostile environments is as close as we will get for some time. Visualization is also used in a variety of supporting roles for deep space missions, ...	false	false	[ "John R. Wright", "Scott C. Burleigh", "Makoto Maruya", "Scott Maxwell", "René Pischel" ]	[]	[]	[]
Vis	2,003	Visualization of noisy and biased volume data using first and second order derivative techniques	10.1109/VISUAL.2003.1250397	The quality of volume visualization depends strongly on the quality of the underlying data. In virtual colonoscopy, CT data should be acquired at a low radiation dose that results in a low signal-to-noise ratio. Alternatively, MRI data is acquired without ionizing radiation, but suffers from noise and bias (global sign...	false	false	[ "Marc P. Persoon", "Iwo Serlie", "Frits H. Post", "Roel Truyen", "Frans Vos" ]	[]	[]	[]
Vis	2,003	Visualization of steep breaking waves and thin spray sheets around a ship	10.1109/VISUAL.2003.1250419	The simulation of breaking of waves, the formation of thin spray sheets, and the entertainment of air around the next generation of naval surface combatants is an ongoing 3-year Department of Defense (DoD) Challenge Project. The goal of this project is a validated computation capability to model the full hydrodynamics ...	false	false	[ "Paul Adams", "Douglas Dommermuth" ]	[]	[]	[]
Vis	2,003	Visualization of volume data with quadratic super splines	10.1109/VISUAL.2003.1250399	We develop a new approach to reconstruct non-discrete models from gridded volume samples. As a model, we use quadratic trivariate super splines on a uniform tetrahedral partition /spl Delta/. The approximating splines are determined in a natural and completely symmetric way by averaging local data samples, such that ap...	false	false	[ "Christian Rössl", "Frank Zeilfelder", "Günther Nürnberger", "Hans-Peter Seidel" ]	[]	[]	[]
Vis	2,003	Visualization, optimization, business strategy: a case study	10.1109/VISUAL.2003.1250416	We describe a visualization application intended for operational use in formulating business strategy in the customer service arena. The visualization capability provided in this application implicitly allows the user to better formulate the objective function for large optimization runs which act to minimize costs bas...	false	false	[ "Donna L. Gresh", "Eugene I. Kelton" ]	[]	[]	[]
Vis	2,003	Visualizing industrial CT volume data for nondestructive testing applications	10.1109/VISUAL.2003.1250418	This paper describes a set of techniques developed for the visualization of high-resolution volume data generated from industrial computed tomography for nondestructive testing (NDT) applications. Because the data are typically noisy and contain fine features, direct volume rendering methods do not always give us satis...	false	false	[ "Runzhen Huang", "Kwan-Liu Ma", "Patrick S. McCormick", "William Ward" ]	[]	[]	[]
Vis	2,003	Visualizing spatial and temporal variability in coastal observatories	10.1109/VISUAL.2003.1250421	In this paper, we describe a set of 3D and 4D visualization tools and techniques for CORIE, a complex environmental observation and forecasting system (EOFS) for the Columbia River. The Columbia River, a complex and highly variable estuary, is the target of numerous cross-disciplinary ecosystem research projects and is...	false	false	[ "Walter Jiménez", "Wagner Toledo Corrêa", "Cláudio T. Silva", "António M. Baptista" ]	[]	[]	[]
Vis	2,003	Visually accurate multi-field weather visualization	10.1109/VISUAL.2003.1250383	Weather visualization is a difficult problem because it comprises volumetric multi-field data and traditional surface-based approaches obscure details of the complex three-dimensional structure of cloud dynamics. Therefore, visually accurate volumetric multi-field visualization of storm scale and cloud scale data is ne...	false	false	[ "Kirk Riley", "David S. Ebert", "Charles D. Hansen", "Jason J. Levit" ]	[]	[]	[]
Vis	2,003	Volume tracking using higher dimensional isosurfacing	10.1109/VISUAL.2003.1250374	Tracking and visualizing local features from a time-varying volumetric data allows the user to focus on selected regions of interest, both in space and time, which can lead to a better understanding of the underlying dynamics. In this paper, we present an efficient algorithm to track time-varying isosurfaces and interv...	false	false	[ "Guangfeng Ji", "Han-Wei Shen", "Rephael Wenger" ]	[]	[]	[]
Vis	2,003	Voxels on fire	10.1109/VISUAL.2003.1250382	We introduce a method for the animation of fire propagation and the burning consumption of objects represented as volumetric data sets. Our method uses a volumetric fire propagation model based on an enhanced distance field. It can simulate the spreading of multiple fire fronts over a specified isosurface without actua...	false	false	[ "Ye Zhao 0004", "Xiaoming Wei", "Zhe Fan", "Arie E. Kaufman", "Hong Qin" ]	[]	[]	[]
Vis	2,003	Which comes first, usability or utility?	10.1109/VISUAL.2003.1250426	Georges Grinstein Questions often asked when presenting some new model, new theory, new research or new visualization include: How useful or how usable is it? and Have you performed any tests? Visualization is an interface technology and as such includes not just software algorithms and techniques, but computer human i...	false	false	[ "Georges G. Grinstein", "Alfred Kobsa", "Catherine Plaisant", "Ben Shneiderman", "John T. Stasko" ]	[]	[]	[]
InfoVis	2,003	A model of multi-scale perceptual organization in information graphics	10.1109/INFVIS.2003.1249005	We propose a new method for assessing the perceptual organization of information graphics, based on the premise that the visual structure of an image should match the structure of the data it is intended to convey. The core of our method is a new formal model of one type of perceptual structure, based on classical mach...	false	false	[ "Martin Wattenberg", "Danyel Fisher" ]	[]	[]	[]
InfoVis	2,003	A virtual workspace for hybrid multidimensional scaling algorithms	10.1109/INFVIS.2003.1249013	In visualising multidimensional data, it is well known that different types of algorithms to process them. Data sets might be distinguished according to volume, variable types and distribution, and each of these characteristics imposes constraints upon the choice of applicable algorithms for their visualization. Previo...	false	false	[ "Greg Ross", "Matthew Chalmers" ]	[]	[]	[]
InfoVis	2,003	An experimental evaluation of continuous semantic zooming in program visualization	10.1109/INFVIS.2003.1249021	This paper presents the results of an experiment aimed at investigating how different methods of viewing visual programs affect users' understanding. The first two methods used traditional flat and semantic zooming models of program representation; the third is a new representation that uses semantic zooming combined w...	false	false	[ "Kenneth L. Summers", "Timothy E. Goldsmith", "Steve Kubica", "Thomas P. Caudell" ]	[]	[]	[]
InfoVis	2,003	BARD: A visualization tool for biological sequence analysis	10.1109/INFVIS.2003.1249029	We present BARD (biological arc diagrams), a visualization tool for biological sequence analysis. The development of BARD began with the application of Wattenberg's arc diagrams (Wattenberg, 2002) to results from sequence analysis programs, such as BLAST (Atschul et al., 1990). In this paper, we extend the initial arc ...	false	false	[ "Rhazes Spell", "Rachael Brady", "Fred Dietrich" ]	[]	[]	[]
InfoVis	2,003	Between aesthetics and utility: designing ambient information visualizations	10.1109/INFVIS.2003.1249031	Unlike traditional information visualization, ambient information visualizations reside in the environment of the user rather than on the screen of a desktop computer. Currently, most dynamic information that is displayed in public places consists of text and numbers. We argue that information visualization can be empl...	false	false	[ "Tobias Skog", "Sara Ljungblad", "Lars Erik Holmquist" ]	[]	[]	[]
InfoVis	2,003	Causality visualization using animated growing polygons	10.1109/INFVIS.2003.1249025	We present Growing Polygons, a novel visualization technique for the graphical representation of causal relations and information flow in a system of interacting processes. Using this method, individual processes are displayed as partitioned polygons with color-coded segments showing dependencies to other processes. Th...	false	false	[ "Niklas Elmqvist", "Philippas Tsigas" ]	[]	[]	[]
InfoVis	2,003	Compound brushing	10.1109/INFVIS.2003.1249024	This paper proposes a conceptual model called compound brushing for modeling the brushing techniques used in dynamic data visualization. In this approach, brushing techniques are modeled as higraphs with five types of basic entities: data, selection, device, renderer, and transformation. Using this model, a flexible vi...	false	false	[ "Hong Chen" ]	[]	[]	[]
InfoVis	2,003	Constant density displays using diversity sampling	10.1109/INFVIS.2003.1249019	The Informedia Digital Video Library user interface summarizes query results with a collage of representative keyframes. We present a user study in which keyframe occlusion caused difficulties. To use the screen space most efficiently to display images, both occlusion and wasted whitespace should be minimized. Thus opt...	false	false	[ "Mark Derthick", "Michael G. Christel", "Alex Hauptmann 0001", "Howard D. Wactlar" ]	[]	[]	[]
InfoVis	2,003	Conveying shape with texture: an experimental investigation of the impact of texture type on shape categorization judgments	10.1109/INFVIS.2003.1249022	As visualization researchers, we are interested in gaining a better understanding of how to effectively use texture to facilitate shape perception. If we could design the ideal texture pattern to apply to an arbitrary smoothly curving shape to be most accurately and effectively perceived, what would the characteristics...	false	false	[ "Sunghee Kim", "Haleh Hagh-Shenas", "Victoria Interrante" ]	[]	[]	[]
InfoVis	2,003	Coordinated graph and scatter-plot views for the visual exploration of microarray time-series data	10.1109/INFVIS.2003.1249023	Microarrays are relatively new, high-throughput data acquisition technology for investigating biological phenomena at the micro-level. One of the more common procedures for microarray experimentation is that of the microarray time-course experiment. The product of microarray time-course experiment is time-series data, ...	false	false	[ "Paul Craig", "Jessie Kennedy" ]	[]	[]	[]
InfoVis	2,003	Design choices when architecting visualizations	10.1109/INFVIS.2003.1249007	In this paper, we focus on some of the key design decisions we faced during the process of architecting a visualization system and present some possible choices, with their associated advantages and disadvantages. We frame this discussion within the context of Rivet, our general visualization environment designed for r...	false	false	[ "Diane Tang", "Chris Stolte", "Robert P. Bosch Jr." ]	[]	[]	[]
InfoVis	2,003	Developing architectural lighting representations	10.1109/INFVIS.2003.1249032	This paper reports on the development of a visualization system for architectural lighting designers. It starts by motivating the problem as both complex in its physics and social organization. Three iterations of prototypes for displaying time and space varying phenomena are discussed. Fieldwork is presented to identi...	false	false	[ "Daniel C. Glaser", "Roger Tan", "John F. Canny", "Ellen Yi-Luen Do" ]	[]	[]	[]
InfoVis	2,003	Dynamic visualization of transient data streams	10.1109/INFVIS.2003.1249014	We introduce two dynamic visualization techniques using multidimensional scaling to analyze transient data streams such as newswires and remote sensing imagery. While the time-sensitive nature of these data streams requires immediate attention in many applications, the unpredictable and unbounded characteristics of thi...	false	false	[ "Pak Chung Wong", "Harlan Foote", "Dan Adams", "Wendy Cowley", "James J. Thomas" ]	[]	[]	[]
InfoVis	2,003	Edgelens: an interactive method for managing edge congestion in graphs	10.1109/INFVIS.2003.1249008	An increasing number of tasks require people to explore, navigate and search extremely complex data sets visualized as graphs. Examples include electrical and telecommunication networks, Web structures, and airline routes. The problem is that graphs of these real world data sets have many interconnected nodes, ultimate...	false	false	[ "Nelson Wong", "Sheelagh Carpendale", "Saul Greenberg" ]	[]	[]	[]
InfoVis	2,003	Empirical comparison of dynamic query sliders and brushing histograms	10.1109/INFVIS.2003.1249020	Dynamic queries facilitate rapid exploration of information by real-time visual display of both query formulation and results. Dynamic query sliders are linked to the main visualization to filter data. A common alternative to dynamic queries is to link several simple visualizations, such as histograms, to the main visu...	false	false	[ "Qing Li", "Chris North 0001" ]	[]	[]	[]
InfoVis	2,003	Exploding the frame: designing for wall-size computer displays	10.1109/INFVIS.2003.1249002	High-resolution wall-size digital displays present significant new and different visual space to show and see imagery. The author has been working with two wall-size digital displays at Princeton University for five years and directing and producing IMAX films for a decade, and he has noted some unique design considera...	false	false	[ "Ben Shedd" ]	[]	[]	[]
InfoVis	2,003	Exploring high-D spaces with multiform matrices and small multiples	10.1109/INFVIS.2003.1249006	We introduce an approach to visual analysis of multivariate data that integrates several methods from information visualization, exploratory data analysis (EDA), and geovisualization. The approach leverages the component-based architecture implemented in GeoVISTA Studio to construct a flexible, multiview, tightly (but ...	false	false	[ "Alan M. MacEachren", "Xiping Dai", "Frank Hardisty", "Diansheng Guo", "Eugene Lengerich" ]	[]	[]	[]
InfoVis	2,003	FundExplorer: supporting the diversification of mutual fund portfolios using context treemaps	10.1109/INFVIS.2003.1249027	An equity mutual fund is a financial instrument that invests in a set of stocks. Any two different funds may partially invest in some of the same stocks, thus overlap is common. Portfolio diversification aims at spreading an investment over many different stocks in search of greater returns. Helping people with portfol...	false	false	[ "Christoph Csallner", "Marcus Handte", "Othmar Lehmann", "John T. Stasko" ]	[]	[]	[]
InfoVis	2,003	IEEE Symposium on Information Visualization 2003 (IEEE Cat. No.03TH8714)	10.1109/INFVIS.2003.1249000	The following topics are dealt with: computer displays; multiscaling; graphs; high dimensionality; occlusion; visualization evaluation; linking and design studies.	false	false	[ "Tamara Munzner", "Steven C. North" ]	[]	[]	[]
InfoVis	2,003	Improving Hybrid MDS with Pivot-Based Searching	10.1109/INFVIS.2003.1249012	An algorithm is presented for the visualization of multidimensional abstract data, building on a hybrid model introduced at Info Vis 2002. The most computationally complex stage of the original model involved performing a nearest-neighbour search for every data item. The complexity of this phase has been reduced by tre...	false	false	[ "Alistair Morrison", "Matthew Chalmers" ]	[]	[]	[]
InfoVis	2,003	Information esthetics: from MoMa to wall street	10.1109/INFVIS.2003.1249003	My after-dinner talk has the goal of being a visual dessert, showing some of the information designs and explorations that I've put together in the last twenty years as a practicing designer and more recently, as an artist. I'll show the ones that people reacted to most strongly; partly to soothe and entertain, but par...	false	false	[ "W. Bradford Paley" ]	[]	[]	[]
InfoVis	2,003	Intelligently resolving point occlusion	10.1109/INFVIS.2003.1249018	Large and high-dimensional data sets mapped to low-dimensional visualizations often result in perceptual ambiguities. One such ambiguity is overlap or occlusion that occurs when the number of records exceeds the number of unique locations in the presentation or when there exist two or more records that map to the same ...	false	false	[ "Marjan Trutschl", "Georges G. Grinstein", "Urska Cvek" ]	[]	[]	[]
InfoVis	2,003	Interactive hierarchical dimension ordering, spacing and filtering for exploration of high dimensional datasets	10.1109/INFVIS.2003.1249015	Large number of dimensions not only cause clutter in multi-dimensional visualizations, but also make it difficult for users to navigate the data space. Effective dimension management, such as dimension ordering, spacing and filtering, is critical for visual exploration of such datasets. Dimension ordering and spacing e...	false	false	[ "Jing Yang 0001", "Wei Peng", "Matthew O. Ward", "Elke A. Rundensteiner" ]	[ "TT" ]	[]	[]
InfoVis	2,003	Mapping nominal values to numbers for effective visualization	10.1109/INFVIS.2003.1249016	Data sets with a large number of nominal variables, some with high cardinality, are becoming increasingly common and need to be explored. Unfortunately, most existing visual exploration displays are designed to handle numeric variables only. When importing data sets with nominal values into such visualization tools, mo...	false	false	[ "Geraldine E. Rosario", "Elke A. Rundensteiner", "David C. Brown", "Matthew O. Ward" ]	[]	[]	[]
InfoVis	2,003	MoireGraphs: radial focus+context visualization and interaction for graphs with visual nodes	10.1109/INFVIS.2003.1249009	Graph and tree visualization techniques enable interactive exploration of complex relations while communicating topology. However, most existing techniques have not been designed for situations where visual information such as images is also present at each node and must be displayed. This paper presents MoireGraphs to...	false	false	[ "T. J. Jankun-Kelly", "Kwan-Liu Ma" ]	[]	[]	[]

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