A fast and robust standard-deviation based method for bulk-motion compensation in phase-based functional OCT

Case ID:
2530
Web Published:
7/9/2020
Description:

Standard deviation phase compensation for OCTA and Doppler OCT

 

This invention involves a novel bulk motion compensation method for phase-based functional OCT.  The two widely used phase compensation methods are the “average” (AVG) method and the “histogram” (HIST) method, wherein the latter estimates the vessel shadow artifact of the AVG method by finding the phase shift with the highest bin number (peak density) in the HIST of all values crossing the tissue on each A-line.  The HIST method improves accuracy of the AVG method by iteratively subtracting estimated bulk motion phase shift on each A-line, but requires a large computational budget.  Our calculations show that our novel method has an image quality improvement of 62% over the AVG method and is almost five times faster than that of the HIST method. 

 

Filed PCT international patent app 4/4/2019, publicly accessible as: PCT/US19/25446.  Provisional filed on 4/2/2018.

 

Optics Letters Vol. 43, Issue 9, pp. 2204-2207 (2018)

https://doi.org/10.1364/OL.43.002204

Article accepted Apr 3, 2018 and published May 1, 2018.

 

Contact Arvin Paranjpe, paranjpe@ohsu.edu

Patent Information:
Category(s):
Software
Device
Diagnostics
For Information, Contact:
Arvin Paranjpe
Technology Development Manager
Oregon Health & Science University
(503) 494-8200
paranjpe@ohsu.edu
Inventors:
Yali Jia
Xiang Wei
Keywords:
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