Hall of Visitors : 1996

Ari Rappoport Afiliation : Hebrew University, Institute of Computer Science Address: Ross Bldg., Givat Ram, Jerusalem 91904, Israel Phone: +972 2-6585438 Fax: +972 2-6585439 E-mail: arir@cs.huji.ac.il Research area : Computer Vision Period of visit : Feb 1996

Ari Rappoport completed his B.Sc. in mathematics and computer science (1987) and his Ph.D. in computer science (1990) at the Hebrew University, Jerusalem, Israel. He was a postdoc at the geometric modeling and animation groups at the IBM T.J. Watson Research Center, NY. Since 1992 he is a lecturer at the Institute of Computer Science at The Hebrew University.

His areas of interest include geometric and solid modeling, computer graphics and animation, image and video processing, and object-oriented analysis and architectures. Current projects include fundamentals of geometric modeling, parametric representations, modeling with constraints, feature-based font representations, interactive design systems, computation and application of the 3-D medial axis, and modeling 3-D objects from video and image sequences.

Claudio Silva Afiliation : State University of New York at Stony Brook Address: Stony Brook, NY 11794-4400 Phone: Fax: E-mail: claudio@cs.sunysb.edu Research area : Computer Vision Period of visit :

Claudio Silva is completing his PhD in computer science at the State University of New York at Stony Brook under Prof. Arie Kaufman. He received his BS in mathematics at the Universidade Federal do Ceara (Brazil) in 1990. Starting in the Fall 1996, Claudio will be a research associate in the Department of Applied Mathematics and Statistics, SUNY at Stony Brook, in the group of Prof. Joseph Mitchell, supported by an NSF PostDoc Associateship. He is also a member of the visualization group at Sandia National Labs.

His interests are in volume rendering, parallel rendering, surface simplification, applied computational geometry, virtual reality and wavelets.

Dibio Borges Afiliation : CEFET-PR - Centro Federal de Educação Técnica do Paraná Address: Phone: Fax: E-mail: dibio@dainf.cefetpr.br Research area : Computer Vision Period of visit : Jan to Feb 1996

Diego Garrido Afiliation : Address: Phone: Fax: E-mail: garrido@visgraf.impa.br Research area : Period of visit : Jan to Feb 1996

Erhardt Barth Afiliation : Institut für Medizinische Psychologie, München, Germany Address: Goethestrasse 31, 80336 München, Germany Phone: 49-89-5996640 Fax: 49-89-5996615 E-mail: erhardt@geco.imp.med.uni-muenchen.de Research area : Computer Vision Period of visit : Jan 15th to Feb 24th 1996

Erhardt Barth received a Ph.D. degree in electrical engineering from the Technische Universität München.

He is currently working in computer vision with special interests in geometric signal processing of images and image sequences and the relationship between curvature and redundancy.

His interests include biological vision models for end-stopped cells and related phenomena.

Thomas de Araujo Buck Afiliation :Universidade Federal da Bahia,Departamento de Ciencia da Computação Address: Av. Ademar de Barros s/n, Ondina, 40170-110 Salvador BA, Brasil Phone: (071) 247-3405 Fax: (071) 245-7436 E-mail: thomas@ufba.br Research area : Computer Vision Period of visit : Jan 20th to Feb 17th 1996

Thomas de Araujo Buck graduated in Mechanical Engineering at the Escola Politécnica of the Universidade Federal da Bahia (1986), and got the Master in Electrical Engineering at the Faculdade de Engenharia Elétrica of the Universidade Estadual de Campinas (1989), both in Brasil.

Thereafter, in July 1995, he got his PhD at the Fakultät für Informatik at the Universität Tübingen , Germany, with the title "Interactive Interpretation of Volume Data". Since August 1995 he is Collaborating Professor at the Departamento de Ciencia da Computação at the Instituto de Matemática of the Universidade Federal da Bahia, in Salvador BA.

He is interested in Visual Computing (Computer Graphics, Image Processing, Computer Vision and Geometric Modeling), Artificial Intelligence and Applications in the Biomedical Sciences.

Uri M. Ascher Afiliation : University of British Columbia, Department of Computer Science Address: Phone: (604) (82)2-4907 Fax: (604) 822-5485 E-mail: ascher@cs.ubc.ca Research area : Methods for scientific computation. Period of visit : March / April 1996

Uri M. Ascher is professor of the Department of Computer Science of the University of British Columbia. He is also Director of the Institute of Applied Mathematics at the same univerity.

The focus of his research is on methods for scientific computation: their implementation, analysis and application.