Computer Graphics, Vision and Mathematics in co-operation with EUROGRAPHICS GraVisMa 2009 Abstract Proceedings University of West Bohemia Plzen Czech Republic September 2-5, 2009 Co-Chairs Dietmar Hildenbrand, University of Darmstadt, Germany Vaclav Skala, University of West Bohemia, Czech Republic Edited by Dietmar Hildenbrand Vaclav Skala