CASOOK: Creative Animating Sketchbook

Understanding drawn picture information is an important task because drawings are one of the most intrinsic representations of individuals, regardless of age, national origin, or culture. However, it is difficult to define an appropriate picture model for computers. To address this challenge, we propose the Creative Animating Sketchbook (CASOOK) application and two basic modules through which the application is constructed. We first build a drawing system as the primary module. It includes a usable interface, which enables users to obtain various features of pictures through drawing, thereby encouraging users to draw. We then extract this primary module with a support vector machine classifier utilizing a binary decision tree. Two-layer sketch recognitions are produced; these can predict complex object classes in free drawing, which comprises the second proposed module. By combining the two proposed modules, we construct the CASOOK system. Based on results from user and computer experiments, we confirm the effectiveness of the proposed modules.