Principle component analysis on photoplethysmograms: Blood oxygen saturation estimation and signal segmentation

Abstract

Most pulse oximeters determine blood oxygen saturation (SpO<inf>2</inf>) after calculating a coefficient, R, that represents the normalized ratiometric contributions of the pulsatile red and near-infrared photoplethysmograms (PPGs) acquired by the sensor. This paper presents a new approach that uses principle component analysis (PCA) to separate the signal… (More)
DOI: 10.1109/IEMBS.2011.6091812

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