The present invention provides a method and system for measuring a pulse wave propagation velocity and an imaging apparatus which can be used by ordinary users on a daily basis, at low cost, and in which measurement accuracy is less likely to be affected by posture or the like. In the present invention, different parts of the human body are simultaneously imaged with a single visible light camera in a non-contact state, and image data that is continuous in time series is acquired. Next, pulse waves in different parts of the human body are detected based on temporal pixel value changes of different parts of the human body in the image data. Then, the pulse wave propagation speed of the human body is calculated based on the time difference of the pulse wave at different parts of the human body.本発明は、一般の利用者が日常的に利用でき、低コストで、測定精度が姿勢等の影響を受けにくい脈波伝播速度の測定方法及びシステム並びに撮像装置を提供する。本発明は、単一の可視光カメラにより非接触状態で人体の異なる部位を同時に撮像し、時系列的に連続した画像データを取得する。次に、画像データにおける人体の異なる部位の時間的な画素値変化に基づき、人体の異なる部位における脈波をそれぞれ検出する。そして、人体の異なる部位における脈波の時間差に基づき、人体の脈波伝播速度を算出する。
