An object of the present invention is to improve the accuracy of biological information. An imaging apparatus for obtaining information on a pulsation of a subject includes a light source capable of switching between irradiation and stop of measurement light and a signal for obtaining signals for images including a subject. The control unit 4 controls the operation of the light source 2 and the signal acquisition unit 3 and a calculation unit 6 that obtains information about pulsation by using a difference image GS between the images G1 and G2. The signal acquisition unit 3 is arranged in N rows and M columns (M and N are integers equal to or greater than 2), and includes a pixel array unit 7 including a plurality of pixels X that generate electric charges corresponding to received light； And a peripheral circuit section 8 that forms a digital signal based on charges generated in response to the light received by the pixel X when the measurement light L is irradiated. [Selection diagram] Fig. 1【課題】生体情報の精度を向上する。【解決手段】被験者１００の脈動に関する情報を得る撮像装置１は、測定光Ｌの照射及び停止を相互に切替可能な光源２と、被験者１００を含む画像Ｇ１、Ｇ２のための信号を得る信号取得部３と、光源２及び信号取得部３の動作を制御する制御部４と、画像Ｇ１、Ｇ２の差分画像ＧＳを利用して脈動に関する情報を得る演算部６と、を備える。信号取得部３は、Ｎ行Ｍ列（Ｍ及びＮは２以上の整数）に配置され、受けた光に対応する電荷を生成する複数の画素Ｘを含む画素アレイ部７と、画素アレイ部７を制御するとともに、測定光Ｌを照射したときに画素Ｘが受けた光に応じて生じた電荷に基づくデジタル信号を形成する周辺回路部８と、を有する。【選択図】図１
