X-ray imaging apparatus, control method for the same and x-ray detector

By recording a marker provided on the X-ray detector in the camera, provides an X-ray imaging apparatus, a control method and X-ray detector that can be a low cost to obtain information about the attitude of the information and the X-ray detector according to the distance between the x-ray source and the X-ray detector . X-ray imaging apparatus according to an embodiment, the x-ray source for irradiating X-rays by generating a; Recording unit which is attached to the X-ray source taking a marker image; If the marker image with at least one marker of the plurality of the markers that make up the multi-marker arrays formed on the surface of the X-ray detector is detected in the outputs the marker has not detected the notification, in the marker image taken after the marker has not detected the notification output of It includes; a controller for detecting a single marker.