An information presentation apparatus comprises a three-dimensional model data
recording apparatus. A projection apparatus projects a marker whose three-dimensional
position/posture relation with a photography object is known onto the photography
object. An image input apparatus inputs the photography object on which the marker
is projected. A position detection apparatus uses the position of the marker in
an image to detect a relative position relation between the photography object
and the image input apparatus. A display apparatus uses the position of the photography
object to superpose and display three-dimensional model data of the photography
object upon the image of the photography object so that the position of the image
of the photography object coincides with the position of the three-dimensional
model data.
