| 摘要 |
PURPOSE: A presentation system is provided to offer an exact point of the presentation by indicating the point through a screen as well as the point which speaker mentions. CONSTITUTION: A first camera(41) takes a photograph of video data of a beam projector. A second camera(42) takes a photograph of the light of the light irradiation apparatus(30). A server(50) transmits the video data. The location of the light of the specific wave is changed into coordinate corresponding to video data, and the coordinate is transmitted. A display device(60) is connected to server through network, and displays a video data and the light location of the specific wave. |
