A position information acquisition unit acquires position information indicating a position of a capsule endoscope occurring at the time of capturing an endoscopic image. A track image generation unit generates track image data representing the movement track of the capsule endoscope inside a subject based on the position information. A display processing unit displays a track image. A shape identification unit identifies an area having a shape that is potentially an obstacle when an insertion part of the endoscope is inserted into the subject.
