Turning a graphics tablet into a transparent blackboard
Jörn Loviscach · 2011
Most lectures in mathematics and in the natural sciences make prominent use of blackboards. Developing an idea is much more natural and interactive with hand-drawn sketches than with glitzy prepared slides. The art of drawing is undergoing a renaissance, which can be seen in literature [Roam 2008] as well as in educational videos on the Web. This work demonstrates a low-cost real-time system to visually enhance such lectures. Unlike related past approaches that started with [Ishii and Kobayashi 1992], it works with a minimal setup such as a tablet PC with integrated webcam.