The objective of this book is to investigate an efficient methodology to capture two dimentional objects which should be highly accurate, storage efficient and should require no user interaction. The book provides survey of latest algorithms and techniques on the subject. Analytical and comparative study of existing techiques is an important part of this book. Some newly proposed algorithms are also given in this book. The presented material can lead to various applications like visual surveillance, vector graphics, font capturing and designing, digitization of printed shapes, image understanding and many more. The latest work presented in this book is expected to have high usability in computer graphics, image processing and computer vision applications. The book will be a handy guideline for researchers in the field of image processing and computer graphics.