Nuisance free recognition of hand postures over a tabletop display
VisHCI '06 Proceedings of the HCSNet workshop on Use of vision in human-computer interaction - Volume 56
Introducing tangerine: a tangible interactive natural environment
Proceedings of the 15th international conference on Multimedia
Evolving tuis with smart objects for multi-context interaction
CHI '08 Extended Abstracts on Human Factors in Computing Systems
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We present an interactive workspace featuring visionbased gesture recognition that allows multiple users to collaborate in the creation of a concept map. The workspace integrates web-based and face-to-face scenarios in knowledge-building activities like brainstorming or problem solving sessions. A wiki serves as the repository for knowledge elements, which are presented to co-located users in form of a concept map visualized on a table. The computer vision module tracks multiple hands and fingers on the table surface using fingertip detection and tracking algorithm. The concept map and the wiki are synchronized in real-time, providing notifications to both co-located and distributed users and allowing a community shared awareness that enhances and enriches the knowledge building experience.