Advances in Visual Computing 8th International Symposium, ISVC 2012, Rethymnon, Crete, Greece, July 16-18, 2012, Revised Selected Papers, Part I - Bebis, George; Boyle, Richard; Parvin, Bahram; Koracin, Darko; Fowlkes, Charless; Wang, Sen; Choi, Min-Hyung; Mantler, Stephan; Schulze, Jürgen; Acevedo, Daniel; Mueller, Klaus; Papka, Michael (Springer Berlin Heidelberg : Imprint: Springer, 2012)