Abstract
We have developed a support system for effective presentations in live stage performances. This system provides functions of using images and videos created by computers and controlling them in real-time. This system is easy and portable to use in theaters for stage staffs who do not have specialized knowledge about computers. We carried out two live stage performances with the system. We got feedbacks from spectators and the stage director that managing visual images by the system was effective. In this article, the structure of the system and our experience in the two performances are described.
