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.
Patent No.:
Date of Patent:
Mar. 16, 2021
Filed:
Mar. 19, 2019
Applicant:
Welch Allyn, Inc., Skaneateles Falls, NY (US);
Inventors:
William Niall Creedon, Portland, OR (US);
Eric Joseph Laurin, Beaverton, OR (US);
Richard Allen Mowrey, Ottawa, CA;
Assignee:
Welch Allyn, Inc., Skaneateles Falls, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 7/00 (2017.01); G06T 3/40 (2006.01); G06T 7/12 (2017.01); A61B 3/12 (2006.01); A61B 3/00 (2006.01); G06T 7/136 (2017.01);
U.S. Cl.
CPC ...
G06T 7/0012 (2013.01); A61B 3/0008 (2013.01); A61B 3/12 (2013.01); G06T 3/4007 (2013.01); G06T 7/12 (2017.01); G06T 7/136 (2017.01); G06T 2207/30041 (2013.01);
Abstract
A digital imaging system processes digital images of a subject's fundus and/or pupils to determine pupil edge region pixels. Pupil edge region pixels are removed and a glint area is identified and interpolated over. Resulting images can be processed to determine a pixel intensity distribution slope. Using the pixel intensity distribution slope, refractive error determinations can be made.