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Welcome to the remote photoplethysmography (rPPG) wiki!

The rPPG github repository is created to improve rPPG algorithms that allow the extraction of average heart rate and the timing of heart pulses from skin surfaces as recorded with cameras that filmed people's faces and other body parts. The surface of the skin and the light it reflects tends to change rhythmically as a function of heart pulsations. Each heart pulsation widens the blood vessels, inducing texture changes (due to physical and color changes) at the skin’s surface. These changes are not detectable with the human eye but a digital camera (e.g., a webcam) is able to capture such small fluctuations in texture. The extraction of the heart rate signal from the skin surface recorded with videos requires several image processing steps. The description and the implementation of these steps are published here (link follows soon). The current code includes these image processing steps. However, there are several remaining challenges that need to be solved by changing the current algorithm. At the "issues" page you can find a list of code requirements (requests; to do's) and invite you to help me to further develop the current algorithms. Please contact me if you would like to become a contributor to this rPPG project.