Abstract: A stereoscopic display apparatus that performs a stereoscopic display using a right-eye image and a left-eye image acquired by radiographing a subject plural times while changing an incidence angle of radiation on the subject, includes a display unit that stereoscopically displays the right-eye image and the left-eye image, and a changing unit that shifts at least one of the right-eye image and the left-eye image displayed on the display unit to change an inter-image distance being a distance between the right-eye image and the left-eye image in a direction parallel to a straight line connecting the right eye and the left eye of an observer.

Abstract: A stereoscopic display apparatus that can perform a stereoscopic display using a right-eye image and a left-eye image acquired through radiography, includes an image display unit that can display a planar image of at least one of the right-eye image and the left-eye image as a planar display along with the stereoscopic display, a display selecting unit that selects any one of the stereoscopic display and the planar display, and a position pointing unit that can be operated in the selected stereoscopic display or planar display and that can be operated to interlock in the stereoscopic display and the planar display, wherein the position pointing unit includes a depth changing unit that changes the depth thereof in the stereoscopic display.