A radiographic imaging apparatus includes: a radiation source for applying radiation to a subject and at least one marker a detecting unit for detecting the radiation transmitted through the subject and an image obtaining unit for moving the radiation source relative to the detecting means, applying the radiation to the subject from a plurality of radiation source positions provided by the movement of the radiation source, and obtaining a plurality of images corresponding respectively to the radiation source positions. The apparatus further includes a radiation source position obtaining unit for obtaining positional information of each radiation source position of interest relative to a reference radiation source position among the radiation source positions based on at least one marker image contained in each of a reference image obtained with the reference radiation source position and an image of interest obtained with the radiation source position of interest.
