| 摘要 |
PROBLEM TO BE SOLVED: To provide an image projection device for correcting distortion of a projection image without being affected by the position of a presenter. SOLUTION: The image projection device 2 includes: a first antenna 3; a second antenna 4; an image projection part 25 for projecting an image; a communication part 21 for performing wireless communication with a plurality of wireless devices provided on a projection screen whereon the image is projected by the image projection part 25, via the antennas 3 and 4; a distance measuring part 22 for measuring a distance between each of the antennas and each of the wireless devices on the basis of a propagation delay time in wireless communication between the communication part 21 and each of the wireless devices; a correction parameter calculation part 23 for calculating a correction parameter for correcting distortion of the projection image projected by the image projection part 25 on the basis of the distances measured by the distance measuring part 22; and an image correction part 24 for correcting the distortion of the projection image on the basis of the correction parameter calculated by the correction parameter calculation part 23. COPYRIGHT: (C)2010,JPO&INPIT |
