[Problems to be Solved]In the case where radiological imaging of a human body with an embedded artificial object is performed, obtaining a more accurate radiation exposure dose of the human body.[Means for Solving the Problems]In the case where a radiation exposure dose of a human body that includes an artificial object is obtained based on a radiation image signal detected by a radiation image detector through the application of radiation transmitted through the human body, information of the artificial object included in the human body is obtained and, in the case where information indicating that an artificial object is included in the human body is obtained as the information of the artificial object, a correction is performed to increase the radiation exposure dose, which is based on the radiation image signal, by a predetermined correction radiation exposure dose.
