Abstract: An ultrasound image displaying apparatus includes: a composite data generating unit which generates composite data in which data based on echo signals obtained by transmitting ultrasound to a subject are multiple-frame combined; a display unit on which an ultrasound image based on the composite data is displayed; and an index calculating unit which calculates an index related to the amount of motion artifacts in the ultrasound image for each frame, based on the data. The composite data generating unit generates composite data combined using data of some or all frames in each of which the index satisfies a prescribed reference.

Abstract: A detection apparatus for detecting the position of a boundary between a first part and a second part of a subject, includes a pixel extraction unit for extracting a plurality of candidate pixels acting as candidates for a pixel situated on the boundary on the basis of image data of a first section crossing the first part and the second part, and a pixel specification unit for specifying the pixel situated on the boundary from within the plurality of candidate pixels by using an identifier which has been prepared by using an algorithm of machine learning.