Designed especially for neurobiologists, FluoRender is an interactive tool for multi-channel fluorescence microscopy data visualization and analysis.
Deep brain stimulation
BrainStimulator is a set of networks that are used in SCIRun to perform simulations of brain stimulation such as transcranial direct current stimulation (tDCS) and magnetic transcranial stimulation (TMS).
Developing software tools for science has always been a central vision of the SCI Institute.

SCI Publications


C. Guerra, V. Pascucci. “Finding Line Segments with Tabu Search,” In IEICE Transactions on Information & Systems, Vol. E84-D, No. 12, pp. 1739-1744. December, 2001.

P. Lindstrom, V. Pascucci. “Visualization of Large Terrains Made Easy,” In Proceedings of the 12th Annual IEEE Conference on Visualization (VIS-01), San Diego, CA, Note: UCRL-JC-144753, IEEE Computer Society, pp. 363--370, 574. October 21-26, 2001.

V. Pascucci, R.J. Frank. “Global Static Indexing for Real-time Exploration of Very Large Regular Grids,” In Proceedings of Supercomputing 2001, Note: UCRL-JC-144754, ACM, Nov, 2001.

V. Pascucci. “On the Topology of the Level Sets of a Scalar Field,” In Proceedings of the 13th Canadian Conference on Computational Geometry, Note: UCRL-JC-142262, pp. 141--144. August, 2001.

A. Shamir, V. Pascucci. “Temporal and Spatial Level of Details for Dynamic Meshes,” In Proceedings of the ACM Symposium on Virtual Reality Software and Technology 2001, Banff Center, Canada, ACM, November, 2001.


B.S. Duerstock, C.L. Bajaj, V. Pascucci, D.R. Schikore, K. Lin, R.B. Borgens. “Advances in Three-Dimensional Reconstruction of the Experimental Spinal Cord Injury,” In Computerized Medical Imaging and Graphics, Vol. 24, No. 6, pp. 389--406. 2000.

V. Pascucci, C.L. Bajaj. “Time Critical Isosurface Refinement and Smoothing,” In Proceedings of the ACM/IEEE Volume Visualization and Graphics Symposium 2000, Salt lake City, Utah, Note: UCRL-JC-139628, pp. 33--42. October, 2000.

A. Shamir, V. Pascucci, C.L. Bajaj. “Multi-Resolution Dynamic Meshes with Arbitrary Deformations,” In Proceedings of IEEE Conference on Visualization (VIS-00), Salt lake City, Utah, Note: UCRL-JC-139680, pp. 423--430. 2000.


C.L. Bajaj, C. Baldazzi, S. Cutchin, A. Paoluzzi, V. Pascucci, M. Vicentino. “A Programming Approach for Complex Animations,” In Computer Aided Design, Vol. 31, No. 11, pp. 695--710. 1999.

C.L. Bajaj, V. Pascucci, G. Zhuang. “Single Resolution Compression of Arbitrary Triangular Meshes with Properties,” In Computational Geometry: Theory and Applications, Vol. 14, No. 1--3, pp. 167--186. 1999.
ISSN: 0925-7721
DOI: 10.1016/S0925-7721(99)00026-7


Triangular meshes are widely used as primary representation of surface models for networked gaming and for complex interactive design in manufacturing. Accurate triangulation of a surface with sharp features (highly varying curvatures, holes) may require an extremely large number of triangles. Fast transmission of such large triangle meshes is critical to many applications that interactively manipulate geometric models in remote networked environments. The need for a succinct representation is therefore not only to reduce static storage requirements, but also to consume less network bandwidth and thus reduce the transmission time.

In this paper we address the problem of defining a space efficient encoding scheme for both lossless and error-bounded lossy compression of triangular meshes that is robust enough to handle directly arbitrary sets of triangles including non-orientable meshes, non-manifold meshes and even non-mesh cases. The compression is achieved by capturing the redundant information in both the topology (connectivity) and geometry with possibly property attributes. Example models and results are also reported.

C.L. Bajaj, V. Pascucci, D.R. Schikore. “Data Visualization Techniques,” Trends in Software, Vol. 6, Ch. 3: Accelerated IsoContouring of Scalar Fields, John Wiley & Sons, pp. 31--47. 1999.

C.L. Bajaj, V. Pascucci, G. Zhuang. “Progressive Compression and Transmission of Arbitrary Triangular Meshes,” In Proceedings of the 10th Annual IEEE Conference on Visualization (VIS-99), San Francisco, CA, pp. 307--316. October 24-29, 1999.

C.L. Bajaj, V. Pascucci, D. Thompson, X.Y. Zhang. “Parallel Accelerated Isocontouring for Out-Of-Core Visualization,” In Proceedings of First Parallel Visualization and Graphics Symposium 1999, San Francisco, CA, IEEE Computer Society, October, 1999.

C.L. Bajaj, V. Pascucci, G. Zhuang. “Single Resolution Compression of Arbitrary Triangular Meshes with Properties,” In Proceedings of DCC: Data Compression Conference 1999, IEEE Computer Society, Snowbird, Utah March, 1999.

C.L. Bajaj, S. Cutchin, V. Pascucci, A. Paoluzzi, C. Morgia. “Web Based Collaborative CAAD,” In Proceedings of the 5th Symposium on Solid Modeling and Applications, 1999.

C. Bajaj, V. Pascucci, E. Petajan, G. Zhuang. “Polygonal Model Coding Evaluation for Low bit-rate Communication,” In Proceedings of the International Workshop on Synthetic - Natural Hybrid Coding and Three Dimensional Imaging, September, 1999.

C. Guerra, V. Pascucci. “On Matching Sets of 3D Segments,” In Proceedings of SPIE Vision Geometry VIII, Denver, USA pp. 157-167. 1999.

C. Guerra, V. Pascucci. “3D Segment Matching Using the Hausdorff Distance,” In Proceedings of the IEEE Conference on Image Processing and its Applications, IPA99, pp. 18--22. 1999.

C. Guerra, V. Pascucci. “Segment Matching for Protein Secondary Structure Comparison,” In Proceedings of the Third International Conference on Computational Molecular Biology, RECOMB'99, ACM, Lyon, France pp. 30. 1999.


C.L. Bajaj, V. Pascucci, R.J. Holt, A.N. Netravali. “Dynamic Maintenance and Visualization of Molecular Surfaces,” In Proceedings of the 10th Canadian Conference on Computational Geometry (CCCG), Montreal, Quebec, Canada, Edited by Mike Soss, School of Computer Science, McGill University, pp. 68--69. August, 1998.