Publication | Closed Access
Kernel Flow: a high channel count scalable TD-fNIRS system
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2021
Year
Unknown Venue
Kernel FlowNirs SystemsEngineeringSpectroscopyBiomedical ImagingBiomedical PhotonicsComputer EngineeringTd-nirs SystemMulti-channel ProcessingNear-infrared SpectroscopyIntegrated CircuitsBiophotonicsInstrumentationBiomedical EngineeringChannel CharacterizationSignal ProcessingOptical ImagingRadiology
Time-Domain Near-Infrared Spectroscopy (TD-NIRS) has been considered as the gold standard of non-invasive optical brain imaging devices. However, due to the high cost, complexity, and large form-factor, it has not been as widely adopted as Continuous Wave (CW) NIRS systems. Kernel Flow is a TD-NIRS system that has been designed to break through these limitations by maintaining the performance of a research grade TD-NIRS system while integrating all of the components into a small modular device. The Kernel Flow modules are built around miniaturized laser drivers, custom integrated circuits, and specialized detectors. The modules can be assembled into a system with dense channel coverage over the entire head. We show performance similar to benchtop systems with our miniaturized device.