| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for presentation operating a display image from a surface of a screen, having versatility and easy to use by controlling a display of a display object related to a pointer based on an output of a pointer display object related processing means. SOLUTION: A projection device 11 projects a display picture 31 containing the display object 32 on a screen 30. An image pickup device 12 image picks up a video on the screen 30. A pointer detection part 13 detects the coordinates position of the pointer 20 temporarily position fixed on the screen 30. A pointer display object related processing part 14 relates the pointer 20 to the display object 32. A display image control part 15 controls the display of the display object 32 related by the position of the pointer 20. At this time, the pointer detection part 13, the pointer display object related processing part 14 and the display image control part 15 are constituted of one microprocessor unit 16.
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