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【課題】撮影装置の位置測定誤差に起因する撮影対象圃場の特定精度の劣化を防ぐ。【解決手段】圃場形状を拡大した拡大圃場を生成する拡大部34と、拡大圃場が重複する重複領域に関連づけて、重複領域内で重複する拡大圃場の数、識別情報、及び、重複領域内から撮影された圃場と判定される撮影方位範囲をその圃場と対応させて記録した方位範囲情報と、を記録した重複領域リストと、撮影位置が含まれる全ての拡大圃場を選出してその数及び識別情報を取得する選出部36と、選出された拡大圃場の数及び識別情報が、重複領域リスト中の拡大圃場の数及び識別情報と一致する全ての重複領域を抽出し、抽出された重複領域に関連する撮影方位範囲内に撮影方位を含む圃場を撮影された圃場と特定する特定部37と、を備える。【選択図】図2
