Industries that utilize public presentation technologies, whether designed for the screen or aimed at a large scale venue, will benefit from applications of non-intrusive, high-precision sensing which is designed to allow greater levels of performance through the use of advanced forms of real-time user interfaces. At the same time, new advances in large-scale image display, sound reinforcement, and newly invented and engineered forms of content delivery will enhance the receptiveness of various audiences. Far-reaching consequences are possible in related areas such as advertising, web-based training, and interactive communication, as well as the fields of education and therapy.