PROBLEM TO BE SOLVED: To prevent deterioration in specification precision of a field to be photographed due to a position measurement error of a photographic device.;SOLUTION: A field management support device includes an enlargement part 34 which generates an enlarged field having an enlarged field shape, a selection part 36 which selects an overlap area list in which number and identification information on enlarged fields overlapping in an overlap area in which the enlarged fields overlap, and azimuth range information having a photographic azimuth range, determined as a field photographed from inside the overlap area, recorded corresponding to the field are recorded associatively with the overlap area, and all enlarged fields including a photographic position, and acquires number and identification information on the enlarged fields; and a specification part 37 which extracts all overlap areas such that the selected number and identification information on the enlarged fields matches number and identification information on the enlarged fields in the overlap area list, and specifies fields including a photographic azimuth in a photographic azimuth range associated with the extracted overlap areas as a field having been photographed.;COPYRIGHT: (C)2012,JPO&INPIT
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