| 摘要 |
<P>PROBLEM TO BE SOLVED: To clearly identify a point indicated on a projection display image of presentation material by a presenter in a remote place, in a system for distributing the presentation material in a file format thereof. <P>SOLUTION: The presentation material prepared in a PC2 is projected to a screen 7 by a projector 6. When the presenter 8 performs the indication on the screen 7 by a laser pointer, the PC 2 processes an image from a camera 1 to detect a position on a photographic screen. The position is transformed into a position on the presentation material of a projection source by use of a previously calculated projective transformation matrix, and the position is marked. The marked presentation material is distributed to a PC4 in the remote place, and is displayed on a screen 5. <P>COPYRIGHT: (C)2010,JPO&INPIT |
