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Theory and Practice of Computer Graphics
Cardiff University, UK
17-19 June 2009


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"Geometric Computing"

Prof. Ralph Martin will review a wide range of recent research prRalph Martinojects he has been involved in, both within the Geometric Computing and Computer Vision research group at Cardiff University, and with other collaborators. Various topics will be covered including surface mesh denoising, surface mesh segmentation, shape deformation for animation, generating surface mosaics, design intent detection, low discrepancy point sampling, generating smooth parting lines for molds, reverse engineering of reliefs, texture transfer, sketch input of solids, assessing visual differences in meshes, and video completion.

Biography Ralph Martin has been working in the field of geometric computing since 1979. He obtaiSurface Tilingned his PhD in 1983 from Cambridge University for a dissertation on "Principal Patches". Since then has progressed from Lecturer to Professor at Cardiff University, taking this last post in 2000. He is also a Guest Professor at Tsinghua and Shandong Universities in China, and the Deputy Director of Scientific Programmes of the Welsh Institute of Visual Computing. His publications include almost 200 papers and 10 books covering such topics as solid modelling, surface modelling, reverse engineering, intelligent sketch input, mesh processing, video processing, computer graphics, vision based geometric inspection, and geometric reasoning. He is a Fellow of the Institute of Mathematics and its Applications, and a Member of the British Computer Society. He is on the editorial boards of "Computer Aided Design", "Computer Aided Geometric Design", the "International Journal of Shape Modelling", "CAD and Applications", and the "International Journal of CADCAM".

"Video-based 3D content production"

Prof. Adrian Hilton

Over the past decade video-based reconstruction and rendering techniques have received increasing interest for realistic content production in games, broadcast and film. Image-based approaches to shape capModelling People from Multiple Camera Viewsture and rendering using texture maps are now standard in commercial platforms. This talk will focus on advances in realistic content production for dynamic scenes from multiple view video and the challenges to exploiting captured 3D video in production.  Advances in multiple camera studio capture and reconstruction have resulted in methods for highly realistic rendering of actor performance. Challenges in integrating captured representations into a conventional games or film production pipeline will be reviewed,   together with new approaches using surface motion graphs for video-based animation from captured 3D video sequences. Recent research will be presented transferring multiple view reconstruction to outdoor scenes to enable free-viewpoint video in sports broadcast production and on-set production in film will be presented. The talk will review  the state-of-the-art and identify open research problems which need to be resolved to realise the wide-spread application of 3D video in production. Human Motion Capture from Multiple Views

Biography. Adrian Hilton is Professor of Computer Vision and Graphics at the University of Surrey, UK. His research interest is robust computer vision for modelling and understanding real world scenes to bridge-the-gap between real and computer generated imagery. Over the past decade he has published over one hundred articles in the fields of computer vision, graphics and animation. Scientific contributions have been recognised by two journal and one conference best paper awards. Research has been commercially exploited leading to the first commercial hand-held 3D scanner and the first system for capturing animated models of people have been recognised through two EU IST Awards for Innovation,  a DTI Manufacturing Industry Achievement Award and a Computer Graphics World Innovation Award. He heads the Visual Media Research Group leading collaborations with the broadcast and  film industries to  exploit computer vision technologies for use in production.  He received an Advanced Research Fellowship in 1997 and a Royal Society Industry Fellowship in 2008 to support collaboration with industry. He currently serves as an area editor for the journal Computer Vision and Image Understanding, is a member of EPSRC ICT Strategic Advisory Team and was a co-founder of the annual industry-academic   Conference on Visual Media Production in 2003. He is a Chartered Engineer and  member of IET, IEEE and ACM.


"Visualization in Flatland"

Prof. Min Chen

A large number of challenging problems in visualization involve three or higher dimensional data, while the majority of visualization results have been, and will continue to be, shown on two dimensional computer displays and paper media. "Flatland: A Romance of Many Dimensions", written by a headmMin Chenaster and Shakespearean scholar in 1884, enlightened us about the fundamental difficulty and hindrance in visualizing such data. The speaker will draw from his experience in areas of  visualization (including volume graphics and video visualization), and discuss challenges in visualization from the perspective of "Flatland", highlighting the essence of dimension reduction in several visualization techniques. To a large extent, such challenges also signify the divergence of visualization from traditional computer graphics applications. The speaker will present a collective view about data, information and knowledge in visualization, as well as his answers to the following
questions: when does graphics become visualization, and what would be a visualization problem (or concept or system) that is not a graphics one?

Biography. Min Chen received his BSc degree in computer science from Fudan University in 1982 and his PhD degree from the University of Wales in 1991. He is currently a professor in the Department of Computer Science, Swansea University. In 1990, he took up a lectureship in Swansea. He became a senior lecturer in 1998 and was awarded a personal chair (professorship) in 2001. His main research interests include visualization, computer graphics, and interactive computing. Since 1992, he has led the Visual and Interactive Computing group at Swansea (currently consisting of 6 faculty members), and under his supervision, 20 PhD and 3 MPhil students have successfully completed their research programs. He has also led the Centre of Excellence for Computing and Software Technologies since 2002, and is the co-director of the recently-established Welsh Assembly Government Institute for Visual Computing. He was the paper co-chair of IEEE Visualization 2007 and 2008, and played a major role in establishing workshops on volume graphics and knowledge-assisted visualization. He is a fellow of the British Computer Society and a member of Eurographics, IEEE and ACM SIGGRAPH.