Continuous Pulse Rate
Pulse Rate Validation and information on the continuous pulse rate algorithm. Extracts pulse rate from video using Presage's proprietary computer vision pipeline analyzing facial blood flow patterns through consumer-grade cameras.
Key Findings
- Contactless pulse rate measurement from standard video
- Validated across diverse demographics and camera types
- Continuous monitoring without wearables
- Suitable for wellness and informational applications
See model card for Continuous Pulse Rate
Continuous Relative Blood Pressure
Relative BP Waveform High resolution continuous relative blood pressure waveform algorithm. Extracts the arterial waveform from video frames using face detection and image processing to infer relative measures of systolic, diastolic, and mean blood pressure.
Key Findings
- High resolution relative blood pressure waveform extraction
- Infers relative systolic, diastolic, and mean blood pressure
- Window-based Pearson's correlation for validation
- Validated across multiple camera platforms
See model card for Continuous Relative Blood Pressure
Continuous Breathing Rate
Breathing Rate 0.55 BrPM MAE High resolution continuous breathing rate algorithm. Estimates breathing rate and waveform from video analysis of a subject's face, chest, and shoulders using signal processing techniques, measuring rates between 4-40 breaths per minute.
Key Findings
- MAE of 0.55 BrPM with RMSE of 0.95 BrPM
- 80% return rate at confidence >= 70
- Validated against ETCO2 capnography via Biopac MP160
- Tested on 93 subjects (184 videos) across diverse Fitzpatrick types
- Validated on Logitech C920 and Samsung S24 cameras
See model card for Continuous Breathing Rate
Continuous Heart Rate Variability
HRV (SDNN, RMSSD, Stress Index) High resolution continuous heart rate variability algorithm measuring SDNN, RMSSD, and Stress Index from facial video. Provides beat-to-beat variation metrics for research, clinical, and wellness applications.
Key Findings
- Measures SDNN, RMSSD, and Stress Index from video
- Designed for clinicians, polygraphers, and researchers
- Continuous HRV monitoring without wearables
- Validated across multiple camera types and demographics
See model card for Continuous Heart Rate Variability