Evaluation of a Low-Cost and Accessible Approach for Noninvasive Real-Time Blood Oxygen Saturation Measurement Using Video Images

Oxygen is an essential element for human survival, as it is the primary "fuel" for cells in our body. Thus, maintaining a safe level of oxygen in the blood-stream is crucial. Medical professionals refer to the lack of oxygen in the blood as hypoxemia. Severe episodes of hypoxemia can arise from cardiac arrest, suffocation, or drowning and can cause loss of consciousness, rapid organ failure, and death [1]. The novel coronavirus SARS-CoV-2 causes COVID-19 and has become a serious global health issue. More than 676 million people have been infected and over six million deaths worldwide were due to COVID-19-related complications [2].