PROJECTION – VISION SYSTEMS: Towards a Human-Centric Taxonomy

As their name suggests, “projection-vision systems” are systems that utilize a projector, generally as their display, coupled with some form of camera/vision system for input. Projection-vision systems are not new. However, recent technological developments, research into usage, and novel problems emerging from ubiquitous and portable computing have resulted in a growing recognition that they warrant special attention. Collectively, they represent an important, interesting and distinct class of user interface. The intent of this paper is to present an introduction to projection-vision systems from a human-centric perspective. We develop a number of dimensions according to which they can be characterized. In so doing, we discuss older systems that paved the way, as well as ones that are just emerging. Our discussion is oriented around issues of usage and user experience. Technology comes to the fore only in terms of its affordances in this regard. Our hope is to help foster a better understanding of these systems, as well as provide a foundation that can assist in making more informed decisions in terms of next steps.