| 摘要 |
An object of the present invention is to provide a method to correct distortion in a photographic image of a concrete construction. A concrete construction is constructed by pouring concrete into spaces formed by a plurality of moldboards, whereby the removed moldboard left the prints thereof on the surface of the concrete construction. The present invention exploits these features of a concrete construction. A method according to present invention comprises the steps of determining positions of the print of vertexes of the moldboards in the image and modifying the image on the basis of the positions of the print of vertexes so as to remove distortion of the image.
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