Patent ID: 7940888

Claim:
An X-ray imaging apparatus including an X-ray source having a plurality of X-ray focuses, an X-ray detector which detects X-rays emitted from the X-ray focuses and transmitted through an object, and a control unit configured to control the X-ray source and the X-ray detector, the X-ray imaging apparatus comprising: a selection unit configured to select a pair of X-ray focuses out of the plurality of X-ray focuses which project images on the X-ray detector through a region of interest of the object, from which emitted X-rays define an intersecting angle coinciding with a predetermined angle in the region of interest; and a decision unit configured to decide an X-ray focus to be used for imaging from X-ray focuses between the pair of X-ray focuses selected by the selection unit, wherein the control unit captures an X-ray image by causing emission of X-rays from the X-ray focus decided by the decision unit and causing the X-ray detector to detect the X-rays.