Jonathan Eric Liu

US Patent:

20210407088, Dec 30, 2021

Filed:

Sep 13, 2021

Appl. No.:

17/447465

Inventors:

- Tokyo, JP
Zhenguo Wang - Ridgewood NJ, US
Kinpui Chan - Ridgewood NJ, US
Jonathan Liu - New York NY, US
Jongsik Kim - Fort Lee NJ, US

International Classification:

G06T 7/00
G06T 7/73
G06T 11/00
A61B 3/12
G06K 9/46
G06K 9/62
A61B 3/10

Abstract:

A multimodal imaging system and method is capable of taking fundus images, automatically identifying regions of interest (ROIs) of the eye from the fundus images, and performing OCT imaging in the identified ROIs, where the OCT images can provide clinically relevant information for screening purposes. By automatically identifying the ROIs, expert intervention is not required to perform specialized OCT imaging and thus, such imaging and analysis can be provided at more facilities and for more subjects for a lower cost.

US Patent:

20200349701, Nov 5, 2020

Filed:

Jul 16, 2020

Appl. No.:

16/930715

Inventors:

- Tokyo, JP
Zhenguo Wang - Ridgewood NJ, US
Atsushi Kubota - Tokyo, JP
Jonathan Liu - New York NY, US

International Classification:

G06T 7/00
G06T 5/50
A61B 5/00
A61B 5/02
G06K 9/52
G06K 9/62

Abstract:

Methods and systems for angiographic imaging with optical coherence tomography (OCT) are described using ratio-based and angiographic deviation based calculations. In using these calculations to determine motion, arbitrary interframe permutations may be used, post- calculated, non-linear results for projection visualization may be averaged, poor matches may be eliminated on an A-line by A-line basis, windowing functions may be used to improve results, partial spectrums may be used when capturing data, and a minimum intensity threshold may be used for determining which pixels to use.

US Patent:

20190206054, Jul 4, 2019

Filed:

Dec 6, 2018

Appl. No.:

16/212027

Inventors:

- Tokyo, JP
Zhenguo Wang - Ridgewood NJ, US
Kinpui Chan - Ridgewood NJ, US
Jonathan Liu - New York NY, US
Jongsik Kim - Fort Lee NJ, US

International Classification:

G06T 7/00
G06T 7/73
G06T 11/00

Abstract:

A multimodal imaging system and method is capable of taking fundus images, automatically identifying regions of interest (ROIs) of the eye from the fundus images, and performing OCT imaging in the identified ROIs, where the OCT images can provide clinically relevant information for screening purposes. By automatically identifying the ROIs, expert intervention is not required to perform specialized OCT imaging and thus, such imaging and analysis can be provided at more facilities and for more subjects for a lower cost.

US Patent:

20180247409, Aug 30, 2018

Filed:

Apr 27, 2018

Appl. No.:

15/964871

Inventors:

- Tokyo, JP
Zhenguo Wang - Ridgewood NJ, US
Atsushi Kubota - Tokyo, JP
Jonathan Liu - New York NY, US

International Classification:

G06T 7/00
A61B 5/00
G06T 5/50
G06K 9/62
G06K 9/52
A61B 5/02

Abstract:

Methods and systems for angiographic imaging with optical coherence tomography (OCT) are described using ratio-based and angiographic deviation based calculations. In using these calculations to determine motion, arbitrary interframe permutations may be used, post-calculated, non-linear results for projection visualization may be averaged, poor matches may be eliminated on an A-line by A-line basis, windowing functions may be used to improve results, partial spectrums may be used when capturing data, and a minimum intensity threshold may be used for determining which pixels to use.

US Patent:

20170241763, Aug 24, 2017

Filed:

Feb 23, 2017

Appl. No.:

15/440713

Inventors:

- Tokyo, JP
Jongsik Kim - Fort Lee NJ, US
Jonathan Liu - New York NY, US
Kinpui Chan - Ridgewood NJ, US

International Classification:

G01B 9/02

Abstract:

An optical coherence tomography (OCT) system electrically mixes a signature signal with an OCT signal (e.g., an interferogram) output by a photodetector of the OCT system. The signature signal may be a signal output by a photodetector that detects an optical signal from a fiber Bragg grating. The signature signal may then be time delayed before combination with the OCT signal. A series of interferograms are then aligned according to the signature signal. A rescaling signal may be similarly electrically mixed with the signature and OCT signals.

US Patent:

20160307314, Oct 20, 2016

Filed:

Apr 5, 2016

Appl. No.:

15/091288

Inventors:

- Tokyo, JP
Zhenguo Wang - Ridgewood NJ, US
Atsushi Kubota - Tokyo, JP
Jonathan Liu - New York NY, US

International Classification:

G06T 7/00
A61B 5/02
A61B 5/00
G06K 9/52
G06K 9/62

Abstract:

Methods and systems for angiographic imaging with optical coherence tomography (OCT) are described using ratio-based and angiographic deviation based calculations. In using these calculations to determine motion, arbitrary interframe permutations may be used, post-calculated, non-linear results for projection visualization may be averaged, poor matches may be eliminated on an A-line by A-line basis, windowing functions may be used to improve results, partial spectrums may be used when capturing data, and a minimum intensity threshold may be used for determining which pixels to use.

Address:

2359 Monte Villa Cts, Marietta, GA 30062

Phone:

6786773838

VIN:

5UXFG83569LZ93090

Make:

BMW

Model:

X6

Year:

2009