FAQs - For your end users
These user-facing FAQs can be helpful when updating the help content for end users in your platform. They are written from the perspective of your platform.
We recommend clearly explaining to your endusers what the Face Scan is and how it works. Providing this context helps build user trust and encourages engagement.
This page is not intended to be linked to directly, but rather serves as inspiration when creating your own help content.
What is the Face Scan
The Face Scan is a digital wellness measurement that uses your camera (smartphone or laptop) to assess several health indicators in about 20 seconds, such as heart rate, heart rate variability, stress levels, and sleep-related signals.
The technology detects subtle color changes in your skin caused by your heartbeat. We offer this feature as an accessible way to gain insight into your overall well-being.
Is the Face Scan safe in terms of privacy?
IntelliProve takes privacy and security very seriously. Their policies are carefully designed to ensure the highest level of confidentiality and integrity when processing data.
They undergo regular penetration tests and security assessments designed to comply with GDPR guidelines. A comprehensive overview of all measures taken to fully anonymize data can be found in IntelliProve’s privacy policy.
How long does a measurement take?
To perform a reliable measurement, a minimum analysis time of 20 seconds is required.
How accurate is the measurement?
To evaluate the performance of the algorithms, step-by-step comparative analyses are conducted against medical devices and validated questionnaires.
Does the Face Scan work on all skin tones?
Ensuring effectiveness across the entire population is a key priority for IntelliProve. Through multiple training and testing cycles with participants of diverse skin tones, no reduced performance has been observed in individuals with darker skin tones.
What are these measurements for — what can I do with them as a user?
This content depends on your platform, but below is a suggestion to add.
The measurements give you an objective overview of your well-being: for example, your stress levels, energy balance, and recovery.
By measuring regularly, you can track trends in your well-being over time. This allows you to take action early, sometimes even before you notice any symptoms yourself.
What is the added value of the Face Scan for behavior change or monitoring?
The value lies in combining objective data with your subjective experience. The Face Scan detects physiological signals that can change weeks before you actually feel something.
By measuring regularly, you start to see patterns over time — this is what supports behavior change. Results are always compared to your personal baseline, making them relevant and motivating.
How can biomarkers be used to understand mental well-being?
While objective biomarkers and parameters are often associated with physical conditions, they can also play an important role in understanding mental well-being.
IntelliProve has published a detailed blog post that explores this topic further, explaining how biomarkers can provide valuable insights into mental well-being.
How does the facial scan work technically?
- Face detection and quality control A short video of the face is captured using a camera. Algorithms correct for movement of both the face and the camera, while automatically checking recording conditions to ensure measurement quality.
- ROI detection (Region of Interest) Small areas of the face with strong blood flow are selected.
- Signal processing and machine learning Ambient light penetrates the skin and is reflected by blood vessels. Pixel values in the selected facial regions are used to construct a raw signal containing subtle color changes related to the heartbeat, using signal processing and machine learning techniques.
- Biomedical signal extraction The raw signal is processed into a high-quality photoplethysmogram (PPG) waveform and facial micro-expression patterns using advanced signal processing and machine learning techniques.
- Health parameters Using proprietary IntelliProve algorithms, health parameters are calculated based on these signals.
Can the facial scan be used as medical advice?
The scan does not provide any form of medical advice, diagnosis, or treatment and is not intended for medical use. It is designed for general wellness purposes only.
The insights provided are not a substitute for consulting a general practitioner or other medical professional. If you have concerns about your health, always consult a qualified healthcare provider.
Who is IntelliProve?
IntelliProve is a company that develops digital applications for monitoring your health. They create clinically validated algorithms that enable applications such as the facial scan used in Welwijzer.
Using the camera of your computer or smartphone, blood flow in your face is captured. Based on this, a number of health parameters are analyzed using artificial intelligence.