Dynamic markers for collaborative discussion on video content
Candemir Toklu, Thomas Fischer, Shih-Ping Liou · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1999
In this paper we propose an interactive tool for generating dynamic markers for video object in a distributed video content discussion environment. We address interactive video object selection and real-time video object marker generation which is supported by an automatic object tracking method. The proposed system satisfies the following criteria: (i) automatic object tracking has to be in real- time; (ii) the video object selection has to be carried out with minimal effort and knowledge; (iii) the user has to be notified by the system when the automatic object tracking method encounters problems: and (iv) interactive rectification of the object marker has to be instantaneous and direct. Our experimental results indicate that the proposed tool is very effective and intuitive in creating dynamic object markers for video content on the fly. Automatic object tracking method yields reliable results on a desktop PC in real-time, even with busy background and/or partial occlusion.