There is provided an information processing device including a position acquisition unit configured to acquire a selection position based on a specification of a user in a captured image obtained by imaging a real space, and a line control unit configured to cause a display unit to display a two-dimensional line obtained by projecting, onto a corresponding position on a display screen of the captured image, a three-dimensional line according to a three-dimensional selection position corresponding to the selection position in a three-dimensional virtual space and a three-dimensional installation position of an imaging device including the three-dimensional selection position within an imaging range.