Abstract: An information processing system comprises a control unit configured to execute each of the following steps. A reading step reads reference information on a reference maneuver that is a medical maneuver to be referred to by a user. The reference information includes a three-dimensional position of a track point in the reference maneuver. A first reception step receives a captured image of an external world as viewed by the user. A generation step generates, based on the three-dimensional position of the track point and the captured image, display information for presenting augmented reality regarding the reference maneuver to the user. The augmented reality three-dimensionally reproduces an aspect of a medical instrument used in the reference maneuver or a hand manipulating the medical instrument.

Abstract: A medical image processing device acquires a user operation. The medical image processing device specifies, from a three-dimensional medical image in which one or more organs appear, an organ of interest to which to apply information. The medical image processing device applies predetermined information to the organ of interest that has been specified. The medical image processing device controls a display device so as to display the three-dimensional medical image.