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IEEE Visualization '99 Program:
Tutorials
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TUTORIAL 1 - Volume Graphics
Sunday 8:30am-5:30pm
Instructors: Arie Kaufman, Rick Avila, Sarah Gibson, Jan Hardenbergh,
Hanspeter Pfister, Lisa Sobierajski Avila, Milos Sramek, J. Edward Swan II
Level: Advanced
Course Description: Volume graphics is an approach to handling
conventional graphics applications with volumetric techniques. This course provides an
overview of volume graphics, with a focus on volume modeling, volume manipulation, volume
rendering, and their applications. The course is divided into two portions, and can be
viewed or structured as two half-day courses. The morning is devoted to fundamentals of
volume graphics, modeling and the associated applications. The afternoon is devoted to
volume rendering, manipulation and the associated applications. The course will cover the
technology and several major applications, available tools and techniques, the challenges
confronting the field of volume graphics, and some of the advanced topics in the field.
Who Should Attend: Course material is moderately difficult, due to the
level of detail of the algorithms and methodologies. Basic knowledge of hidden-surface
methods, rendering models (including basic volume rendering), and computer organization is
recommended.
TUTORIAL 2 - Introduction to Graphics Programming with
Java3D
Sunday 8:30am-5:30pm
Instructors: David R. Nadeau (Organizer and Speaker), Henry A.
Sowizral
Level: Intermediate
Course Description: Java 3D is a new cross-platform API for developing
3D graphics applications in Java. Java 3D's feature set has been designed to enable quick
development of complex 3D applications, and at the same time enable fast and efficient
implementations on a variety of platforms, from PCs to workstations. Using Java 3D,
software developers can build cross-platform applications that build 3D scenes
programmatically, or via loading 3D content from VRML, OBJ, and/or other external files.
The Java 3D API includes a rich feature set for building shapes, composing behaviors,
interacting with the user, and controlling rendering details.
Who Should Attend: Participants in this tutorial learn the concepts
behind Java 3D, the Java 3D class hierarchy, typical usage patterns, ways of avoiding
common mistakes, animation and scene design techniques, and tricks for increasing
performance and realism.
TUTORIAL 3 - Interactive Visualization and Web-based
Exploration in the Physical and Natural Sciences
Monday 8:30am-5:30pm
Instructors: Theresa Marie Rhyne (Organizer and Speaker), Mike Botts,
Bill Hibbard, Lloyd Treinish
Level: Intermediate
Course Description: The visual presentation of large amounts of
scientific information and data often requires the merging of image processing methods
with computer-generated color displays. The exploration of complex physical and natural
sciences data sets involves the application of interactive computer graphics tools and
techniques. Visualization tools are just one component of an integrated decision support
system for scientists, educators, and the general public.
In this tutorial, we intend to highlight the convergence of visualization environments
with the World Wide Web, multi-media tools for desktop videoconferencing, statistical and
plotting functions, computer algorithm exploration, perceptual thinking and computer
animation techniques. The visual display criteria for research, policy analysis, decision
making and science education are not necessarily the same. Therefore, visualization tools
need to be flexible in their design to support these different viewpoints and
interpretations of data. Our tutorial will thus address the design of visualization
systems the support a wide class of users with distinct goals, expectations, capabilities
and resources.
Who Should Attend: Scientific researchers, educators, and computer
graphics specialists interested in exploring particular issues associated with handling
the visual display of scientific information and large scientific data sets. Experience
with scientific visualization systems and terminology is helpful as well as understanding
of computer graphics programming.
TUTORIAL 4 - Clifford Algebra, Quaternions and Their
Use in Physics and Visualization
Monday 8:30am-5:30pm
Instructors: Hans Hagen, Alyn Rockwood, and Gerik Scheuermann
Level: Intermediate
Course Description: Quaternions build a four-dimensional algebra for
three-dimensional geometry. They give the best way to deal with rotations in 3-space. In
Scientific Visualization, one has used them to deal with vector fields in space and for
animations because of their nice interpolation properties.
Clifford algebra is a mathematical language for geometry extending the usual vector
space description. It incorporates such important concepts as complex numbers, quaternions
and matrices which are widely used in physics, modern computer graphics and Visualization.
The central idea is defining elements of different grades like scalars, vectors,
bivectors, trivectors and quaternions together with a multiplication of different graded
elements that unifies scalar multiplication, scalar product, vector product, quaternion
and matrix multiplication. Its extension to Clifford analysis results in a coordinate
invariant differential operator unifying gradient, divergence, and rotation. It opens new
ways to understand geometry and physics making it a excellent chance for new Scientific
Visualization algorithms.
Who Should Attend: We expect that most people are new to parts of the
subject and want to provide an introduction. Parts of the material are of a higher
mathematical level, so some people may regard it as advanced. We included question
sessions to overcome this problem.
TUTORIAL 5 - Visualization Toolkits: Applications and
Techniques
Tuesday 8:30am-5:30pm
Instructors: Kenneth M. Martin (Organizer and Speaker), Lisa
Sobierajski Avila, William E. Lorensen, James V. Miller, William J. Schroeder
Level: Intermediate
Course Description: In this tutorial we will discuss fundamental
issues regarding the design, implementation and application of 3D graphics and
visualization systems. We will describe and contrast some current systems such as Open
Inventor, Java3D, Data Explorer and the Visualization Toolkit. We will examine in more
detail the implementation of the Visualization Toolkit. This will be used to illustrate
important design issues such as graphics portability, interpreted versus compiled
languages, multiple versus single inheritance, data flow models, and user interaction
methods. In the remainder of this tutorial we will focus on applying visualization
techniques and toolkits to solve problems from a selection of application domains.
Who Should Attend: Attendees should have a basic understanding of
computer graphics principles, software development techniques, and visualization
algorithms such as color mapping and contouring. This course is intended for users,
developers, researchers and practitioners of 3D graphics and data visualization.
TUTORIAL 6 - Feature Extraction and Visualization of
Time-Dependent Flow Fields
Tuesday 8:30am-5:30pm
Instructors: David C. Banks, David N. Kenwright, Frits H. Post,
Deborah Silver
Level: Beginning
Course Description: Time-dependent simulations are rapidly becoming
more common for studying dynmamic phemonena such as fluid flows. But visualization of the
resulting data sets is hard because of the huge amount of data generated. Feature-based
visualization is an approach to deal with this problem, extracting salient features and
events from the data. The extraction is done in a separate preprocessing step, as it often
involves intensive computations. After extraction the features can be reprensented in a
very compact way, allowing interactive exploration and real-time visualization.
Important features in flows are for example vortices and eddies, recirculation zones,
separation and reattachment structures, and shock waves. Important events occur when new
features originate or disappear, or when features interact, split, merge, or collide.
Detection of these features and events allows scientists to study these phenomena,
discarding any irrelevant or redundant low-level information, and concentrating entirely
on high-level information that is close to the physical concepts. Approaches to feature
detection and tracking integrate concepts from several fields, such as image processing
and computer vision, morphology, physical concepts from fluid dynamics, differential
geometry, and topology.
This course presents an overview of contemporary techniques for extracting high-level
information from time-dependent flow data fields, covering the fundamentals, a collection
of recent results and advanced techniques, and applications of feature-based
visualization. The explanations will not require an advanced level of mathematics or
physics as a background, but will be largely intuitive and richly illustrated.
Who Should Attend: Visualization, computer graphics, or CFD users and
professionals interested in the state-of-the-art in feature-based flow visualization and
visual analysis of large time-dependent data sets. A basic knowledge of scientific
visualization and numerical simulation is a prerequisite.
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The Program pages on the web will be updated as new
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This page was last modified Wednesday, October 06, 1999
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