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Pulse oximeter employed in intensive care units and is a crucial equipment employed to measure the vital parameters like heart rate and blood oxygen saturation levels. Using Pulse oximeter, photoplethysmographic (PPG) data is recorded using the PPG sensors attached to the patient is used to estimate oxygen saturation levels. Patient movements while recording the PPG data may result in erroneous estimation...
Different signal processing methods are proposed for addressing the motion artifact (MA) related issues in pulse oximetry applications. MA corruption due to voluntary or involuntary movements of patient, while recording the photoplethysmographic (PPG) data using pulse oximeter, is the main source of error in the estimation of arterial blood oxygen saturation (SpO2). In this paper, for addressing the...
Photoplethysmographic (PPG) signals obtained at Red and Infrared wavelengths are utilized in pulse oximetry for estimation of arterial blood oxygen saturation (SpO2). Mostly inaccurate readings in a pulse oximeter arise when PPG signals are contaminated with motion artifacts (MA) due to the movement of patient and hence MA are a common cause of oximeter failure and loss of accuracy. This paper presents...
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