A Study of Hough Transform for Weld Extraction

ii Acknowledgements I sincerely thank my parents and my sister. Without their encouragement, I would not have embarked my journey to this country. I sincerely thank Dr T. Warren Liao for providing me with invaluable guidance, constant encouragement and support throughout the course of my work. He has been very patient in explaining to me about writing a thesis. I have learned many valuable lessons from his teachings and our interactions in classroom and beyond. giving comments and input in my work. I would like to extend my special thanks also to Dr Jerry Draayer and Ms Hortensia Valdes, who have been very supportive and caring, in my first year at LSU. I would like to thank the Alton Ochsner Medical Foundation, New Orleans, who provided financial support to many Industrial Engineering graduate students, including myself. Finally, I would like to express my heartfelt thanks to my friends-Chiranjit, Daada.