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Visualization, sometimes referred to as visual data analysis, uses the graphical representation of data as a means of gaining understanding and insight into the data. Visualization research at SCI has focused on applications spanning computational fluid dynamics, medical imaging and analysis, biomedical data analysis, healthcare data analysis, weather data analysis, poetry, network and graph analysis, financial data analysis, etc.

Research involves novel algorithm and technique development to building tools and systems that assist in the comprehension of massive amounts of (scientific) data. We also research the process of creating successful visualizations.

We strongly believe in the role of interactivity in visual data analysis. Therefore, much of our research is concerned with creating visualizations that are intuitive to interact with and also render at interactive rates.

Visualization at SCI includes the academic subfields of Scientific Visualization, Information Visualization and Visual Analytics.


Charles Hansen

Volume Rendering
Ray Tracing

Valerio Pascucci

Topological Methods
Data Streaming
Big Data

Chris Johnson

Scalar, Vector, and
Tensor Field Visualization,
Uncertainty Visualization


Mike Kirby

Uncertainty Visualization

Ross Whitaker

Topological Methods
Uncertainty Visualization

Miriah Meyer

Information Visualization


Yarden Livnat

Information Visualization

alex lex

Alex Lex

Information Visualization


Bei Wang

Information Visualization
Scientific Visualization
Topological Data Analysis

Visualization Project Sites:

Associated Labs:

Publications in Visualization:

A Near Optimal Isosurface Extraction Algorithm Using the Span Space
Y. Livnat, H.W. Shen, C.R. Johnson. In IEEE Transactions on Visual Computer Graphics, Vol. 2, No. 1, pp. 73--84. 1996.

SCIRun: Applying Interactive Computer Graphics to Scientific Problems
S.G. Parker, C.R. Johnson. In SIGGRAPH (applications/demo), 1996.

Global and Local Vector Field Visualization Using Enhanced Line Integral Convolution
H.W. Shen, C.R. Johnson, K.L. Ma. In Symposium on Volume Visualization, IEEE Press, pp. 63--70. 1996.

MeshView: A tool for exploring 3D unstructured tetrahedral meshes
C.S. Gitlin, C.R. Johnson. In 5th International Meshing Roundtable, pp. 333--345. 1996.

Software Tools for Modeling, Computation, and Visualization in Medicine
C.R. Johnson, R.S. MacLeod, J.A. Schmidt. In CompMed 94 Proceedings, World Scientific, 1995.

Applications in Computational Medicine using SCIRun: A Computational Steering Programming Environment
C.R. Johnson, S.G. Parker. In Supercomputer `95, Edited by H.W. Meuer, Springer-Verlag, pp. 2--19. 1995.

Sweeping Simplices: A Fast Iso-surface Extraction Algorithm for Unstructured Grids
H.W. Shen, C.R. Johnson. In IEEE Visualization `95, IEEE Press, pp. 143--150. 1995.

Numerical Methods for Bioelectric Field Problems
C.R. Johnson. In The Biomedical Engineering Handbook, Edited by J.D. Bronzino, CRC Press, Boca Ratan pp. 161--188. 1995.

Hierarchical Data Structures for Interactive Volume Visualization
School of Computing Technical Report, D.M. Weinstein, C.R. Johnson. No. UUCS-95-012, University of Utah, Salt Lake City, UT 1995.

Map3d: Scientific Visualization Program for Multichannel Time Series Data on Unstructured, Three-Dimensional Meshes. Program User's Guide
School of Computing Technical Report, R.S. MacLeod, P.R. Ershler, C.R. Johnson M.A.. No. UUCS-94-016, University of Utah, 1994.

Differential volume rendering: A fast alogrithm for scalar field animation
H.W. Shen, C.R. Johnson. In Visualization 94, IEEE Press, pp. 180--187. 1994.

Techniques for Visualizing 3D Unstructured Meshes
School of Computing Technical Report, C.S. Gitlin, C.R. Johnson. No. UUCS-94-018, University of Utah, 1994.

Interactive Manipulation of Contour Data Using the Layers Program - User Guide
School of Computing Technical Report, S.G. Parker, C.R. Johnson. No. UUCS-94-014, University of Utah, 1994.

Computational Engineering and Science at the University of Utah
C.R. Johnson, P. Alfeld. In IEEE Computational Science and Engineering, pp. 7--9. 1994.

Visualization of 3-D wave prorogation in the heart - a new technique
H.W. Shen, P.B. Gharpure, C.R. Johnson. In IEEE Engineering in Medicine and Biology Society 16th Annual International Conference, IEEE Press, pp. 684--685. 1994.

Map3d: Interactive Scientific Visualization for Bioengineering Data
R.S. MacLeod, C.R. Johnson. In Proceedings of the IEEE Engineering in Medicine and Biology Society 15th Annual International Conference, IEEE Press, pp. 30--31. 1993.

The Body Electric
C.R. Johnson, R.S. MacLeod, M.A. Matheson, C. Zimmerman. In Discover Magazine, pp. 72--77. February, 1993.

Visualization of Bioelectric Fields
R.S. MacLeod, C.R. Johnson, M.A. Matheson. In IEEE Computer Graphics and Applications, Vol. 14, pp. 10--12. Jul, 1993.

Computer Simulations Reveal Complexity of Electrical Activity in the Human Thorax
C.R. Johnson, R.S. MacLeod, M.A. Matheson. In Computers in Physics, Vol. 6, pp. 230--237. May/June, 1992.

Visualization of cardiac bioelectricity --- a case study
R.S. MacLeod, C.R. Johnson, M.A. Matheson. In IEEE Visualization `92, pp. 411--418. 1992.