Description
Whenever the heart beats, the skin color changes because of the extra blood running through the vessels. These tiny skin color changes are undetectable by the human eye, but the Philips Biosensing (by rPPG) algorithms amplify these color changes to calculate an accurate pulse rate signal by analyzing the frequency of the color changes. For respiration the camera focuses on the rise and fall of the chest and abdomen. Again, by amplify these motions via the unique Philips algorithms, an accurate breathing rate is calculated. The measurements are completely unobtrusive and no uncomfortable pads or electrodes need to be worn.
The technology works with any skin type. What’s more, it has been proven in real-world tests to be the most accurate contactless technique for measuring vital signs. It can be integrated with low-cost cameras, and doesn’t require any specialist knowledge to use – making it ideal for a wide range of applications.
Philips Biosensing (by rPPG) is motion robust. It uses facial tracking to get an accurate reading during motion, for example when the user is moving in front of the camera or the whole environment is moving. This ensures always a pulse and breathing rate can be calculated.
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