A Real-time Production Tool for Animated Hand Sketches

Abstract

In recent years, the look of hand-drawn sketches has become fashionable in video production. This paper introduces a software tool to produce corresponding videos in real time during lectures, presentations, or in the studio. Currently, two styles are available. In the first style, a hand seems to draw on a whiteboard. In the second style, the presenter seems to stand behind a transparent board, which is simulated with the help of a camera. In both cases, the input stems from a standard graphics tablet. The image of the lecturer's arm is synthesized from photographs and animated through inverse kinematics, the sounds of the pen and the eraser are synthesized from recordings. Auxiliary functions include a ghosted script for the presenter and drag drop of graphical elements prepared in advance.