METHOD AND DEVICE FOR DETERMINING MAGNIFICATION OF RADIOGRAPHIC IMAGE

摘要

PROBLEM TO BE SOLVED: To determine the magnification of a radiographic image in a radiography device with an X ray source and an image collecting means mounted on a support body for supporting a subject to be radiographed in such a way as to rotate around at least one axis when the position of the subject is determined. SOLUTION: At least two images corresponding to two angle positions are collected. Projection of at least one point of the subject radiographed on the images is specified, and at least one magnification of the images is determined first as the function of the angle displacement of the radiation source and a recording means between the collected images, and next as the function of the specified projection position on the images.