| 摘要 |
First and second stimulable phosphor sheets are located such that the first stimulable phosphor sheet may be closer to a source of radiation. The radiation, which has passed through an object, is irradiated to the first and second stimulable phosphor sheets, and radiation images of the object are stored on the two sheets Read-out image signals A1 and A2 are respectively read out from the first and second stimulable phosphor sheets. Read-out image signals A1us and A2us are obtained respectively from high frequency component eliminating processes carried out on the read-out image signals A1 and A2. The read-out image signals A1us and A2us are subjected to a first operation expressed as B=A1us-(alpha)*A2us where (alpha) is a coefficient, and (alpha)>0, and an image signal B is thereby obtained. A second operation is then carried out which is expressed as C=(1-(beta))*A1+(beta)*A2-(gamma)*B where (beta) and (gamma) are coefficients, 0<=(beta)<=1, and (gamma)>0, and an image signal C is thereby obtained. A visible radiation image, which is free of adverse effects from scattered radiation, is then reproduced from the image signal C. |
