Blood flow index calculation method, blood flow index calculation program, and blood flow index calculation device

摘要

A blood flow index calculating apparatus (10) obtains an image, in which a first site of a living body and a second site of the living body are captured by a camera, the first site being a part of the living body of a subject, and the second site being a site different from the first site. Further, the blood flow index calculating apparatus (10) extracts an area of the first site of the living body and an area of the second site of the living body, the areas being included in the image. Furthermore, a pulse wave pattern of the first site of the living body is detected from the area of the first site of the living body and a pulse wave pattern of the second site of the living body is detected from the area of the second site of the living body. Moreover, the blood flow index calculating apparatus (10) calculates a delay amount from the pulse wave pattern of the first site of the living body and the pulse wave pattern of the second site of the living body. In addition, the blood flow index calculating apparatus (10) calculates an index related to blood flow by using the delay amount.