Faramarz Famil Samavati,

University of Calgary –

Abstract:

Multiresolution representations (MR) for curves and surfaces have been extensively used in many areas of computer graphics.

The conventional MR is usually defined based on wavelets. However, in this lecture, I present a simple reverse subdivision approach for MR, and derive multiresolution filters for quadratic and cubic B-splines curves. I also show how to use and extend these filters for tensor-product surfaces, and 2D/3D images. Finally, some example applications in model synthesizing and contextual void patching for digital elevation models are discussed.

About the speaker:
Professor Faramarz Samavati currently works on various aspects of Computer Graphics. In general terms, his research areas are Geometric Modeling , Sketch-Based Modeling, Visualizations and Non-photo Realistic Rendering . More specifically, the research topics in his area are Surface Modeling , Volume Modeling , Subdivision Surfaces , Flexible Projection , Least Squares , NURBS, Multiresolution and Wavelets . Faramarz Samavati currently supervises a group of very good graduate students . He also collaborates with several other researchers ( Richard Bartels , Przemyslaw Prusinkiewicz , Mario Costa-Sousa , Brian Wyvil l, Marina Gavrilova , Sheelagh Carpandale and Joaquim Jorge ). He has over 50 technical papers in peer-reviewed journals and conferences. He is a Member of ACM and EG . Currently he is in the program committee of IMMERSCOM2007, ICIAR 2007, SBIM2007 and SMI2008.

 

Date: 2008-May-15     Time: 09:30:00     Room: Sala de V/C IST da Alameda e TagusPark

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