Systems and methods for quasi-ballistic photon optical coherence tomography in diffusive scattering media using a lock-in camera detector
US10219700B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2017 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | Dec 22, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16H30/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Described herein are systems and methods for noninvasive functional brain imaging using low-coherence interferometry (e.g., for the purpose of creating a brain computer interface with higher spatiotemporal resolution). One variation of a system and method comprises optical interference components and techniques using a lock-in camera. The system comprises a light source and a processor configured to rapidly phase-shift the reference light beam across a pre-selected set of phase shifts or offsets, to store a set of interference patterns associated with each of these pre-selected phase shifts, and to process these stored interference patterns to compute an estimate of the number of photons traveling between a light source and the lock-in camera detector for which the path length falls within a user-defined path length range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.