SIMILARITY DETERMINATION DEVICE, SIMILARITY DETERMINATION METHOD, AND SIMILARITY DETERMINATION PROGRAM

摘要

A display control unit displays a tomography image of a specific tomography plane in a first medical image on a display unit. A finding classification unit classifies each pixel of a sub-area of the first medical image into at least one finding. A feature set calculation unit calculates a first feature set for each finding in the sub-area. A weighting coefficient setting unit sets a weighting coefficient, which indicates a degree of weighting that varies depending on a size of each finding, for each finding. A similarity derivation unit carries out a weighting process for the first feature set for each finding calculated in the sub-area and a second feature set for each finding calculated in advance in a second medical image on the basis of the weighting coefficient in order to establish a similarity between the first medical image and the second medical image Derive image.