Efficient sampling of optical coherence tomography data for explicit ranging over extended depth
US10502544B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2017 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Jun 14, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B9/02091
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An efficient OCT data collection and processing method for obtaining a high-axial-resolution image with explicit ranging over an extended depth is described. The method includes collecting a first dataset at a transverse location of the sample. The first dataset comprises spectra of a bandwidth (Δk1) sampled at a spectral sampling interval (dk1). A second dataset comprising spectra of a bandwidth (Δk2) sampled at a spectral sampling interval (dk2) is collected. The bandwidth Δk2 is less than Δk1 and spectral sampling interval dk2 is less than dk1. The first and the second datasets are processed to generate at least one A-scan with an axial resolution higher than the axial resolution corresponding to the bandwidth Δk2 and a depth range larger than the depth range provided by sampling interval dk1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.