The paper describes our recently developed system which captures both whiteboard content and audio signals of a meeting using a digital still camera and a microphone. Our system can be retrofitted to any existing whiteboard. It computes the time stamps of pen strokes on the whiteboard by analyzing the sequence of captured snapshots. It also automatically produces a set of key frames representing all the written content on the whiteboard before each erasure. Therefore, the whiteboard content serves as a visual index to browse the audio meeting efficiently. It is a complete system which not only captures the whiteboard content, but also helps users to view and manage the captured meeting content efficiently and securely.
['Li-wei He', 'Zicheng Liu', 'Zhengyou Zhang']
Why take notes? Use the whiteboard capture system