Investigation of Optimal Light Source Wavelength for Cuffless Blood Pressure Estimation Using a Single Photoplethysmography Sensor.
Sogo TodaKenta MatsumuraPublished in: Sensors (2023)
Keyphrases
- light source
- blood pressure
- point light source
- shape from shading
- single image
- lighting conditions
- photometric stereo
- multiple images
- surface normals
- heart rate
- illumination conditions
- structured light
- object surface
- multiple light sources
- reflectance properties
- viewpoint
- specular reflection
- image irradiance
- real objects
- surface orientation
- shape recovery
- cast shadows
- viewing direction
- risk factors
- surface reflectance
- high quality