PROBLEM TO BE SOLVED: To provide an information processing unit capable of accurately measuring a pulse wave propagation time difference without contact.SOLUTION: An information processing unit 100 divides biological image information obtained by photographing the surface of a living body into plural divided areas, and detects a pulse wave signal on the basis of luminance variation with the time variation of pixels included in each divided areas. Then, the information processing unit 100 compares each pulse wave signal of each divided area, measures each delay amount of the pulse wave signal of each divided area, and identifies a maximum delay amount among the measured delay amounts.SELECTED DRAWING: Figure 1【課題】非接触で脈波伝搬時差を精度よく計測する情報処理装置を提供する。【解決手段】情報処理装置１００は、生体の表面が撮影された生体画像情報を複数の分割領域に分割し、各分割領域に含まれる画素の時間変化に伴う輝度変化に基づいて脈波信号を検出する。そして、情報処理装置１００は、各分割領域の脈波信号をそれぞれ比較して各分割領域の脈波信号の遅延量をそれぞれ測定し、測定した各遅延量のうち最大の遅延量を特定する。【選択図】図１
