| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain an image wherein an artifact is reduced without regard to a photographed section and without regard to movement in energy subtraction of various sections. <P>SOLUTION: An energy subtraction apparatus is provided with: an image input means which inputs two or more different kinds of radiation images photographed by irradiating a subject with radiations of different qualities; a photographed section obtaining means which designates a photographed section; a motion compensation processing means which performs positioning processing by compensating movement of corresponding points between the two or more different kinds of radiation images by the movement of the subject; a subtraction means which subjects the two or more different kinds of radiation images to energy subtraction processing; and an operation mode switch means which switches the operation mode of the positioning processing by the motion compensation processing means according to the photographed section. <P>COPYRIGHT: (C)2010,JPO&INPIT |
