Interactive curve modeling techniques and their applications are extremely useful inanumber ofacademicandindustrialsettings.Speci?cally, curvemodelingplays a signi?cant role in multidisciplinary problem solving. It is extremely useful in various situations like font design, designing objects, CAD/CAM, medical im- ing and visualization, scienti?c data visualization, virtual reality, object recog- tion, etc. In particular, various problems like iris recognition, ?ngerprint rec- nition, signature recognition, etc. can also be intelligently solved and automated using curve techniques. In addition to its critical importance more recently, the curve modeling methods have also proven to be indispensable in a variety of m- ern industries, including computer vision, robotics, medical imaging, visuali- tion, and even media. This book aims to provide a valuable source that focuses on interdisciplinary methods and to add up-to-date methodologies in the area. It aims to provide the user community with a variety of techniques, applications, and systems necessary for various real-life problems in the areas such as font design, medical visuali- tion, scienti?c data visualization, archaeology, toon rendering, virtual reality, body simulation, outline capture of images, object recognition, signature recognition, industrial applications, and many others.