Shape discrimination device, shape discrimination method and shape discrimination program

摘要

A shape discrimination device includes an approximate curve calculator configured to calculate an approximate curve of a contour, the contour being a line having a finite length representing a part of an outline of an object shown in an image, the approximate curve being a line approximating to the contour and calculated based on coordinates forming the contour, a distance calculator configured to calculate a first distance and a second distance being distances from a first and second end of the contour to a first and second end of the approximate curve, respectively, a coincidence calculator configured to calculate a center coincidence being a degree of coincidence between a center of the contour and the approximate curve, and a specifier configured to specify a shape of the object or a part of the object based on the first distance, the second distance, and the center coincidence.