Patent ID: 11944382
Assignee: OREGON HEALTH & SCIENCE UNIVERSITY
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 15:
16. A system for bulk motion compensation in phased-based functional OCT imaging, the system comprising:
an OCT system configured to acquire a phased-based functional OCT dataset of a sample;
a logic subsystem; and
a data holding subsystem comprising machine-readable instructions stored thereon that are executable by the logic subsystem to:
receive, via the OCT system, a first complex-valued OCT A-scan, An, associated with a sample;
receive, via the OCT system, a second complex-valued OCT A-scan, An+1, associated with the sample;
calculate a set of variance values for the first and second complex-valued OCT A-scans according to:

v32 [std(An−An+1·exp(−i·θ))]2;

calculate a bulk motion phase shift, ΔϕB, from the set of variance values;
perform bulk motion compensation on the first and second complex-valued OCT A-scans using the bulk motion phase shift, ΔϕB; and
generate and display a flow image based on the bulk motion compensated first and second complex-valued OCT A-scans.