Graph connection Laplacian allows for enhanced outcomes of consumer camera based photoplethysmography imaging.
Stefan BorikHau-Tieng WuKirk H. ShelleyAymen A. AlianPublished in: Biomed. Signal Process. Control. (2024)
Keyphrases
- acquired images
- graph laplacian
- imaging devices
- ccd camera
- imaging systems
- image analysis
- hand held
- imaging process
- field of view
- single viewpoint
- high resolution
- active illumination
- single shot
- image capture
- graph structure
- graph theory
- light intensity
- directed graph
- medical imaging
- structure from motion
- vision system
- optical properties
- image processing
- multiple cameras
- weighted graph
- random walk
- real time
- image acquisition
- focal plane
- camera motion
- imaging model
- laplacian matrix
- computer vision
- spectral decomposition
- graph mining
- focal length
- video camera
- surveillance system
- heat kernel
- limited field of view
- synthetic aperture
- captured images
- graph representation
- single camera
- camera calibration
- image segmentation