| 摘要 |
PURPOSE: To display a projection image on a screen at a desired angle with easy operability as to the image display system which displays three-dimensional image data corresponding to the position of a viewpoint. CONSTITUTION: A display device 6 is able to rotate and move at least in three dimensions. This display device 6 is provided with a gyro sensor 7 which detects the angles α, β, and γ of the three-dimensional directions of the display device 6. A matrix arithmetic means 1 calculates rotational matrixes around the respective axes according to the angles α, β, and γof rotation of the three-dimensional directions that the gyro sensor 7 detects. A viewpoint position arithmetic means 2 calculates a viewpoint position after movement on the basis of the calculated rotational matrixes. An image data generating means 3 generates image data viewed from the viewpoint after the movement on the basis of the calculated viewpoint position after the movement and original image data 4a stored in an original image storage means 4. Then a display control means 5 displays the generated image data 8 on the screen 6a of the display device 6. |
