PROBLEM TO BE SOLVED: To provide a subject information acquisition device capable of selectively highlighting a structure, and a display method of an image on a subject.SOLUTION: A subject information acquisition device includes an extraction processing part for extracting a signal component of mutually different first and second frequency bands from an electric signal based on an acoustic wave propagating from a subject as a result of light irradiation to the subject, an image signal generation part for generating a first image signal based on the signal component of the first frequency band extracted by the extraction processing part, a second image signal based on the signal component of the second frequency band extracted by the extraction processing part, and a third image signal based on the electric signal, and a subject information acquisition device including a weighting processing part for weighting a signal strength of the third image signal based on the signal strength of the first and second image signals.SELECTED DRAWING: Figure 1【課題】構造物を選択的に強調できる被検体情報取得装置および被検体に関する画像の表示方法を提供する。【解決手段】被検体への光照射に起因して被検体から伝搬した音響波に基づく電気信号から、互いに異なる第１および第２の周波数帯域の信号成分を抽出する抽出処理部と、抽出処理部が抽出した第１の周波数帯域の信号成分に基づく第１の画像信号、抽出処理部が抽出した第２の周波数帯域の信号成分に基づく第２の画像信号、および電気信号に基づく第３の画像信号を生成する画像信号生成部と、第１および第２の画像信号の信号強度に基づいて第３の画像信号の信号強度を重みづけする重みづけ処理部を有する被検体情報取得装置を用いる。【選択図】図１
