The work on this Masters thesis began at the Multimedia Laboratory at San Diego State University in California and was completed at the Institute of Computer Graphics and Vision at the University of Technology, Graz. I am most thankful for having the unique experience of writing my Masters thesis in such a beautiful environment like California. Therefore, I would like to thank, Dr. Nenad Marovac, for the invitation to San Diego and for all his support and trust. Furthermore, I would like to thank my supervisor Dr. Dipl. Ing. Axel Pinz for his support and patience; especially during the final phase of this thesis. I also would like to thank the SDSU Administrative staff and faculty that allowed me to use their resources. Especially, I would like to thank Lesley Briant for helping with various administrative paperwork.
I would like to express my special thanks to all the friendly people of San Diego who made my stay so unforgettable. Above all, my heart goes out to Ms. Christina Skrak and her family. She not only gave me a place to stay; she was also a very special friend and she always made me feel at home. I also would like to thank Kris & Joel Tracey, Kim & Scott Higgins, Karen & Paul Mentkowski, as well as Jan & Brian Clayton, Rose Filippini and Lou Fischi for so many unforgettable hours. Especially, I would like to thank Kim and Kris for proofreading my Thesis -- providing valuable expertise as I continue to learn the English language.
Finally, I deeply thank my parents for their never-ending love and support during my whole life.