Flow imaging in an optical coherence tomography (OCT) system
First Claim
Patent Images
1. An optical coherence tomography (OCT) system comprising:
- a light source configured to generate a probe beam having an adjustable swept rate and swept range;
an interferometer and beam scanning optics configured to scan the probe beam onto a sample;
a detector configured to measure an OCT interference signal returning from the sample;
a processor configured to generate an OCT image of a flow of the sample, wherein the processor is configured to;
scan a B scan of a sample N times at a first slice of the sample, wherein;
N is greater than or equal to 2,the B scan comprises a plurality of A scans,a pixel of the first slice has an M number of A scans within the pixel,each of the A scans has a spectrum range less than a full spectrum range of the light source, anda number of pixels per B scan is an approximate B scan length divided by a lateral resolution size of the pixel; and
determine a flow image of the sample using an optical coherence tomography (OCT) signal reflected back from the sample.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for imaging includes scanning a B scan of a sample N times at a first slice of a sample. N is greater than or equal to 2. The B scan includes a plurality of A scans. A pixel of the first slice has an M number of A scans within the pixel. Each of the A scans have a spectrum range less than a full spectrum range of the light source. A number of pixels per B scan is an approximate B scan length divided by a lateral resolution size of the pixel. The method further includes determine a flow image of the sample using an optical coherence tomography (OCT) signal reflected back from the sample.
-
Citations
20 Claims
-
1. An optical coherence tomography (OCT) system comprising:
-
a light source configured to generate a probe beam having an adjustable swept rate and swept range; an interferometer and beam scanning optics configured to scan the probe beam onto a sample; a detector configured to measure an OCT interference signal returning from the sample; a processor configured to generate an OCT image of a flow of the sample, wherein the processor is configured to; scan a B scan of a sample N times at a first slice of the sample, wherein; N is greater than or equal to 2, the B scan comprises a plurality of A scans, a pixel of the first slice has an M number of A scans within the pixel, each of the A scans has a spectrum range less than a full spectrum range of the light source, and a number of pixels per B scan is an approximate B scan length divided by a lateral resolution size of the pixel; and determine a flow image of the sample using an optical coherence tomography (OCT) signal reflected back from the sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method for imaging comprising:
-
scanning a B scan of a sample N times at a first slice of the sample, wherein; N is greater than or equal to 2, the B scan comprises a plurality of A scans, a pixel of the first slice has an M number of A scans within the pixel, each of the A scans has a spectrum range less than a full spectrum range of a light source, and a number of pixels per B scan is an approximate B scan length divided by a lateral resolution size of the pixel; and determining a flow image of the sample using M segments of an optical coherence tomography (OCT) signal reflected back from the sample. - View Dependent Claims (14, 15, 16)
-
-
17. A non-transitory computer readable medium having instructions thereon that, upon execution by a computing device, cause the computing device to perform operations comprising:
-
scanning a B scan of a sample N times at a first slice of the sample, wherein; N is greater than or equal to 2, the B scan comprises a plurality of A scans, a pixel of the first slice has an M number of A scans within the pixel, each of the A scans has a spectrum range less than a full spectrum range of a light source, and a number of pixels per B scan is an approximate B scan length divided by a lateral resolution size of the pixel; and determining a flow image of the sample using M segments of an optical coherence tomography (OCT) signal reflected back from the sample. - View Dependent Claims (18, 19, 20)
-
Specification