PROBLEM TO BE SOLVED: To estimate amount of change in biological components non-invasively and with high accuracy.SOLUTION: A measuring device 10 comprises a measurement part 12D and an estimation part 12E. The measurement part 12D acquires a scattering coefficient distribution image 46 in which the scattering coefficient of a measurement target region E of a living body with respect to light including the wavelength region of a near-infrared region is prescribed on a pixel-by-pixel basis. The estimation part 12E estimates amount of change in biological components on the basis of the scattering coefficient distribution image 46.SELECTED DRAWING: Figure 1【課題】非侵襲でかつ精度良く生体成分の変化量を推定する。【解決手段】測定装置１０は、測定部１２Ｄと、推定部１２Ｅと、を備える。測定部１２Ｄは、近赤外領域の波長領域を含む光に対する、生体の測定対象領域Ｅの散乱係数を画素毎に規定した散乱係数分布画像４６を取得する。推定部１２Ｅは、散乱係数分布画像４６に基づいて、生体成分の変化量を推定する。【選択図】図１
