An apparatus for automatically calculating the power of only the thorax - ratio

摘要

An apparatus for automatically measuring the cardiothoracic ratios speedily and with a sufficiently high accuracy, characterized in that the profiles of the thorax and heart are first inferred by processing information on brightness from an X-ray image and then an error in the inference of the profiles is corrected by contextual data processing, so that the cardiothoracic ratio may be computed on the basis of the corrected data.