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Comparative Study
. 2005 Apr;27(3):245-8.
doi: 10.1016/j.medengphy.2004.10.002.

Oxygen saturation determined using a novel wavelet ratio surface

Paul S Addison  1 , James N Watson
Affiliations
Comparative Study

Oxygen saturation determined using a novel wavelet ratio surface

Paul S Addison et al. Med Eng Phys. 2005 Apr.

Abstract

A wavelet-based method is presented for oxygen saturation measurement using photoplethysmogram signals from a standard pulse oximeter device. The transform moduli of both red and infrared signals are used to derive a novel wavelet ratio surface. Projection of the pulse component onto this surface allows optimal derivation of oxygen saturation.

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