The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 10, 2024

Filed:

Feb. 06, 2020
Applicants:

Carl Zeiss Meditec, Inc., Dublin, CA (US);

Carl Zeiss Meditec Ag, Jena, DE;

Inventors:

Niranchana Manivannan, Fremont, CA (US);

Mary Durbin, San Francisco, CA (US);

Assignees:

Carl Zeiss Meditec, Inc., Dublin, CA (US);

Carl Zeiss Meditec AG, Jena, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06V 40/18 (2022.01); A61B 3/12 (2006.01); G06T 7/149 (2017.01); G06V 10/42 (2022.01); G06V 10/46 (2022.01); G06V 10/82 (2022.01); G06V 10/25 (2022.01);
U.S. Cl.
CPC ...
G06V 40/197 (2022.01); A61B 3/12 (2013.01); G06T 7/149 (2017.01); G06V 10/421 (2022.01); G06V 10/469 (2022.01); G06V 10/82 (2022.01); G06V 40/193 (2022.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/20104 (2013.01); G06T 2207/30041 (2013.01); G06V 10/25 (2022.01);
Abstract

An automated segmentation and identification system/method for identifying geographic atrophy (GA) phenotypic patterns in fundus autofluorescence images. A hybrid process combines a supervised pixel classifier with an active contour algorithm. A trained, machine learning model (e.g., SVM or U-Net) provides initial GA segmentation/classification, and this is followed by Chan-Vese active contour algorithm. The junctional zones of the GA segmented area are then analyzed for geometric regularity and light intensity regularity. A determination of GA phenotype is made, at least in part, from these parameters.


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