| 摘要 |
PROBLEM TO BE SOLVED: To display an image so as to output an original image by pre-warping an input image to correct a distortion without using a convergence yoke. SOLUTION: The image distortion correcting device comprises a reference image generator 28 for generating a prescribed reference image, a camera 27 for photographing an image that is outputted onto a screen by inputting the reference image, a distortion information extractor 29 which extracts a correction information for a keystone distortion or a pincushion distortion for correcting the distortion when it is decided that the distortion is observed by comparing a photographed image outputted from the camera 27 with the reference image outputted from the reference image generator 28, a distortion correction memory for storing the above extracted distortion correction information, and a control unit which performs a warping of the image by performing mathematical modeling through a coordinate conversion based on the above stored distortion correction information. COPYRIGHT: (C)2006,JPO&NCIPI
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