There is provided an information processing device, an information processing method, and a computer program capable of highly accurately designating a discretionary position in a three-dimensional model. The information processing device includes: a first display control unit that displays, on a display device, a three-dimensional model of a subject based on a plurality of captured images obtained by imaging the subject from a plurality of viewpoints; a second display control unit that displays, on the display device, a first captured image on a first viewpoint and a second captured image on a second viewpoint among the plurality of captured images; a position acquisition unit that acquires position information of a first position included in the subject in the first captured image and acquires position information of a second position included in the subject in the second captured image; a position calculation unit that calculates a third position included in the three-dimensional model, on the basis of information regarding the first viewpoint and the second viewpoint, position information of the first position, and position information of the second position; and a third display control unit that displays, on the display device, position information of the third position superimposed on the three-dimensional model.