MEASURING APPARATUS, MEASURING METHOD, AND PROGRAM

• Main Authors: ADACHI YOSHIHISA, OKUMURA TETSUYA, TOMIZAWA RYOTA
• Format: Patent
• Language: English; Japanese
• Published: 05.09.2023
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

To provide a measuring apparatus capable of separating a noise caused by a flicker and a frequency component caused by the time change of an organism from each other.SOLUTION: The measuring apparatus comprises: an imaging unit which images an organism to acquire a moving image; a pixel value calculation unit which calculates a representative value of pixel values in a region of interest including an image of the organism, from each image constituting the moving image; and a pulse wave calculation unit which calculates a pulse wave signal from the time change of the representative value. The imaging unit images the organism with a frame rate capable of separating a frequency component caused by a flicker and a frame rate included in the pulse wave signal and a frequency component caused by the time change of the organism included in the pulse wave signal from each other.SELECTED DRAWING: Figure 2 【課題】フリッカによるノイズと、生体の時間変化に起因する周波数成分とを分離できる測定装置を提供する。【解決手段】測定装置は、生体を撮像して動画像を取得する撮像部と、動画像を構成する各画像から、生体の像を含む関心領域の画素値の代表値を算出する画素値算出部と、代表値の時間変化から脈波信号を算出する脈波算出部と、を備え、撮像部は、脈波信号に含まれるフリッカとフレームレートとに起因する周波数成分と、脈波信号に含まれる生体の時間変化に起因する周波数成分とを分離可能なフレームレートで生体を撮像する。【選択図】図２