Interactive free-hand drawing and in-between generation with DBSC

Based on our novel shape and stroke model, Disk B-spline Curve (DBSC), this demo provides user an interactive free-hand drawing system. With a digital tablet the user may draw directly onto the computer a picture whose strokes are then represented by DBSC functions. This representation will not only save space for storing and transmission, but also allow the user to manipulate strokes easily and effectively like zooming. Given two or more pictures, the system can automatically generate intermediate frames, so called in-betweens, thus forming a smooth sequence of animation.