A spectrum extraction method based on uncertainty in noninvasive blood components examinaton

• Published in: Guang pu xue yu guang pu fen xi Vol. 33; no. 2; p. 459
• Main Authors: Lin, Ling, Xiong, Bo, Zhao, Shuang-Qi, Liu, Gui-Li, Wang, Xiao-Fei, Li, Gang
• Format: Journal Article
• Language: Chinese
• Published: China 01.02.2013
• Subjects: Algorithms; Blood Chemical Analysis; Humans; Oximetry; Oxygen - blood; Photoplethysmography; Spectroscopy, Near-Infrared - methods; Uncertainty

An improved spectrum extraction method is proposed based on the dynamic spectrum theory to improve the precision. First, the drift baseline is fitted to restrain the effect of relative motion between the finger and the probe. Then, the spectrum is extracted using the square-sum-root method as a repl...