IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD AND PROGRAM

To generate a difference image having the proper resolution in accordance with a display cross section.SOLUTION: An image processing device comprises: acquisition means which acquires a first medical image and a second medical image being three-dimensional images obtained by imaging a subject; decision means which decides the first resolution on the basis of the resolution of the first medical image and the second resolution on the basis of the prescribed resolution; first generation means which generates a first difference image having the first resolution with the first difference processing between the first medical image and the second medical image and generates a second difference image having the second resolution with the second difference processing between the first medical image and the second medical image; and second generation means which generates a projection image by using the second difference image.SELECTED DRAWING: Figure 1 【課題】 表示断面に応じた適切な解像度を有する差分画像を生成する。【解決手段】 被検体を撮像して得られた３次元画像である第１の医用画像と第２の医用画像を取得する取得手段と、前記第１の医用画像の解像度に基づいて第１の解像度を決定し、所定の解像度に基づいて第２の解像度を決定する決定手段と、前記第１の医用画像と前記第２の医用画像の間の第１の差分処理により前記第１の解像度を有する第１の差分画像を生成し、前記第１の医用画像と前記第２の医用画像の間の第２の差分処理により前記第２の解像度を有する第２の差分画像を生成する第１の生成手段と、前記第２の差分画像を用いて投影画像を生成する第２の生成手段と、を備えることを特徴とする画像処理装置。【選択図】 図１