PROBLEM TO BE SOLVED: To provide a technique which reduces a burden on a user when the user refers to an image to which attention is paid at the past reference time.SOLUTION: A display device of the present invention comprises: an acquisition means for acquiring reference history information which indicates past reference states of a plurality of tomographic images whose imaging positions are different from each other, and includes at least information indicating a cumulative reference count or a cumulative reference time of each tomographic image an extraction means for extracting, using the reference history information, a tomographic image whose cumulative reference count or cumulative reference time is more than a predetermined threshold from among the plurality of tomographic images as a tomographic image to which attention is paid at the past reference time and a classification means for, when a plurality of tomographic images are extracted by the extraction means, grouping the plurality of tomographic images according to groups of tomographic images having an interval of imaging positions equal to or less than a predetermined value.COPYRIGHT: (C)2013,JPO&INPIT【課題】過去の参照時に注目された画像を参照する際のユーザの負担を軽減する技術を提供する。【解決手段】本発明の表示装置は、撮影位置が互いに異なる複数の断層画像の過去の参照状況を表す参照履歴情報であって、少なくとも、各断層画像の累計参照回数または累計参照時間を表す情報を含む参照履歴情報を取得する取得手段と、前記参照履歴情報を用いて、前記複数の断層画像のうち、累計参照回数または累計参照時間が所定の閾値以上の断層画像を、過去の参照時に注目された断層画像として抽出する抽出手段と、前記抽出手段で抽出された断層画像が複数あった場合には、撮影位置の間隔が所定値以下の断層画像の集まり毎にグループ分けする分類手段と、を有する。【選択図】図1
