I am a Professor of Engineering and Computer Science at Brown University. I joined the School of Engineering at Brown University in the Fall of 2003 after thirteen years at the IBM T. J. Watson Research Center: 1990-1994 Research Staff Member, Exploratory Computer Vision; 1995-2000: AI Industry Executives, Visual and Geometric Computing; 2000-2001: Visiting Professor of Electrical Engineering at CalTech, on sabbatical from IBM; 2001-2002, Research Staff Member, Visual Technologies department; 2002-2003: Project Leader, Pervasive Computing Solutions, where we designed and build miniature smart cameras for real-time audio/visual signal processing applications.Ph.D. degree in Electrical Engineering from Brown University. Licenciado en Ciencias Matemáticas from the University of Buenos Aires, Argentina. Named IEEE Fellow for contributions to the development of three-dimensional geometry compression technology and multimedia standards.Main research interests: Applied Computational Geometry, Computer Graphics,