PROBLEM TO BE SOLVED: To provide an image processing apparatus which accurately extracts a target without regard to the shape of the target included in a medical image.SOLUTION: The image processing system acquires a medical image such as a CT image that is a target image S1100, estimates an outline shape of each partial area from seed point information of a target included in the medical image S1120, combines plural estimated partial shapes and acquires it as an outline shape S1130, and extracts the area of the target such as a lymph node on the basis of the outline shape S1140.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2017,JPO&INPIT【課題】医用画像に含まれる対象物の形状に依らず、精度良く抽出する画像処理装置を提供する。【解決手段】画像処理装置は、対象画像であるCT画像などの医用画像をデータサーバから取得しS1100、医用画像に含まれる対象物のシード点情報から概略形状を部分領域ごとに推定しS1120、推定された複数の部分形状を結合し、概略形状として取得しS1130、概略形状に基づいてリンパ節などの対象物の領域を抽出するS1140。【選択図】図3
