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Medically Reviewed By: Dr. Hanif Chatur

Key Takeaways

  • Revolutionary Contactless Technology: Photoplethysmography, especially its remote form rPPG, is transforming health monitoring by offering a non-invasive method to measure vital signs without any physical contact, leveraging simple camera technology for ease of use and comfort.

  • Privacy and Versatility: With its potential to operate without storing video footage, rPPG ensures user privacy while offering wide applications across telemedicine, driver safety, and even interactive gaming, pointing towards an exciting future of integrated AI and augmented reality in health tech

  • Real-time Health Monitoring: rPPG provides immediate feedback on crucial health parameters like heart rate and oxygen saturation, enabling timely interventions and fostering continuous health tracking during daily activities without disruption.

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If Charleton Heston (The Ten Commandments, remember?) were to bring these good tidings to the world, he would say something like: On the horizon of health technology, a new star is risen; one that  foretells new hope, a new promise;  from this day forward, let no man, woman or child be denied the power to monitor their own health. And Yul Bryner would say: so it shall be written; so it shall be done. Well, I’m “writing it so” now: Photoplethysmography equipment has made it possible to say with confidence that “so it is being done”. While Photoplethysmography sounds complex and is very much a mouthful that deserves to be ranked right up there with “supercalifragilisticexpialidocious”, its potential applications are just as vastly varied and infinitely user-friendly as “Mary Poppins”. At the heart of this technology is the concept of Remote Photoplethysmography, or rPPG. And today we intend to proclaim the good (albeit unwieldy) word of Photoplethysmography to the world and reveal to all humanity (or at least our readers) how rPPG is setting new standards in contactless wellbeing monitoring. (Ok; enough with the biblical dialogue already).

What is Photoplethysmography?

Photoplethysmography is a non-invasive technique that measures the volume changes in blood vessels as blood circulates through them. Traditionally, PPG sensors have been incorporated into devices that need to be in direct contact with the skin, such as pulse oximeters. However, with the advent of rPPG, this will no longer need to be done.

The Magic of rPPG

Remote Photoplethysmography (rPPG) is a newer iteration of this technology, allowing for contactless measurement of vital signs.  rPPG uses  cutting edge developments in camera technology to capture  minute color changes in the face (or other exposed skin) and subsequently analyzes the information with advanced algorithms to generate results that detect and correspond to the heart’s pulsations. The true magic of rPPG lies in its ability to gather this data without any physical contact, making it incredibly versatile.

How Photoplethysmography Equipment Powers Contactless Wellbeing Monitoring:

Ease of Use: A rPPG is a contactless solution, the patient does not need to wear any straps, clips, or any other wearable equipment. A simple camera, even one included in a smartphone or laptop, can often capture the necessary data.

Real-time Health Insights: rPPG technology can offer real-time feedback about a person’s heart rate, oxygen saturation, and even stress levels. This immediate insight can prove to be pivotal in health and fitness monitoring, allowing crises to be identified and fatalities averted.

Enhanced User Comfort: Since there’s no physical contact, users can go about their activities without any hindrance, leading to more natural, continuous and consistent health monitoring.

Broad Applications: Due to its ability to detect subtle changes in vital health signs caused by external stimuli, rPPG has potential applications beyond personal health monitoring. It can be integrated into telemedicine platforms, driver monitoring systems that detect fatigue while on the road, or even for measuring user engagement in gaming and entertainment applications and platforms.

Data Privacy: As the increasing use of data collection technologies in the health sector brings concerns about health data privacy into the limelight, rPPG rides forth with an intuitive solution. Since the technology can operate just as effectively without storing the captured video footage, personal visuals can remain private while still providing the necessary health insights.

The Future of rPPG and Contactless Wellbeing Monitoring:

As technology advances, we can anticipate developers to bring us even more accurate rPPG algorithms that allow the technology to be applied to a broader set of issues requiring solutions. Onecould even imagine how Integration with Artificial Intelligence might allow for predictive health insights, and augmented reality platforms might offer real-time health overlays during daily activities.


Photoplethysmography equipment, especially in its remote form (rPPG), is rapidly becoming the cornerstone of contactless wellbeing monitoring. As the healthcare world increasingly progresses towards non-invasive and user-friendly health solutions, rPPG stands out as a harbinger of an entirely new era of healthcare innovation. Whether you’re a health tech enthusiast or someone looking for an easier way to monitor your health, rPPG offers a glimpse into the future of personal health technology.

MarkiTech has various subsidiaries with products and services targeted towards digital healthcare, telehealth/telemedicine, and a virtual clinic with a laser focus on helping seniors age in place and help their caregivers. is a company focused on remote patient monitoring and aging solutions, which utilizes artificial intelligence to track patient’s health and keep a round-the-clock connection between caregivers and patients.

Veyetals also uses rPPG and AI modeling algorithms to measure vitals anytime, anywhere to capture the light reflected by the blood vessels under a patient’s skin. 

Lastly, we have now launched our latest Mental Health AI Scribe tool called