CORRECTION INFORMATION CALCULATION DEVICE, IMAGE CORRECTION DEVICE, IMAGE DISPLAY SYSTEM, AND CORRECTION INFORMATION CALCULATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a correction information calculation device calculating correction information for correcting the shape of a projection region by suppressing degradation of image quality of a projection image, in an image display system for displaying a single image using a plurality of projectors.;SOLUTION: This correction information calculation device 4 is used in this image display system in which projectors 2 each including an image formation element collaboratively display one image on a projection object surface S. Based on: predetermined correction information set in advance as a correspondence relationship between the coordinates of pixels on the image formation element and the coordinates of pixels on a first effective projection region of the projection object surface S on which one image is presently displayed; and on a second correspondence relationship which is a correspondence relationship between the coordinates of the pixels on the first effective projection region and the coordinates of pixels on a second effective projection region on the projection object surface S, which is specified as a region on which the single image is to be displayed, correction information indicative of a correspondence relationship between the coordinates of pixels on the image formation element and the coordinates of pixels on the second effective projection region, is calculated.;COPYRIGHT: (C)2011,JPO&INPIT