| 摘要 |
PROBLEM TO BE SOLVED: To improve the accuracy of combining positions of elongated images at low cost, in a radiation imaging apparatus applicable to elongated images having a range greater than a detectable range of a radiation image detecting means. SOLUTION: A laser source for a cross mark display generally provided in an apparatus is utilized. Displacement measuring means for measuring distances to measuring objects by receiving a laser beam reflected by the measuring objects is added thereto. Positions that correspond to the ends of images in the movement direction of the radiation image detecting means are scanned in the direction perpendicular to the movement direction with the laser beam at each of a plurality of imaging operations. The displacement measuring means measures the positions of the ends of subjects in the laser scanning direction by receiving the laser beam reflected during scanning. When combining a plurality of radiation images, an image processing means matches the combining positions of respective radiation images such that the ends of the subjects measured during each imaging operation are matched, and generates the elongated image. COPYRIGHT: (C)2010,JPO&INPIT |
