Extensible method for developing multi-user media interaction platforms for shared spaces

摘要

As digital entertainment applications evolve, there is a need for new kinds of platforms that can support sociable media interactions for everyday consumers. This thesis demonstrates an extensible method and sensing framework for real-time tracking of multiple objects on an interactive table with an embedded display. This tabletop platform can support many different applications, and is designed to overcome the commercial obstacles of previous single purpose systems. The approach is supported through the design and implementation of an acoustic-based sensing system that provides a means for managing large numbers of objects and applications across multiple platform instances. The design requires precise and dynamic positioning of multiple objects in order to enable real-time multi-user interactions with media applications. Technical analysis shows the approach l:o be robust, scalable to various sizes, and accurate to a within a few millimeters of tolerance. A qualitative user evaluation of the table within a real-world setting illustrates its usability in the consumer entertainment space for digital media browsing and game play. Our observations revealed different ways of mapping physical interaction objects to the media space, as either generic controls or fixed function devices, and highlighted the issue of directionality on visual displays that are viewable from different sides.