US 12,406,341 B2
Correcting images for an ophthalmic imaging system
Mario Abraham, Burgthann (DE); and Maik Lange, Ruckersdorf (DE)
Assigned to ALCON INC., Fribourg (CH)
Filed by ALCON INC., Fribourg (CH)
Filed on Mar. 25, 2024, as Appl. No. 18/615,090.
Claims priority of provisional application 63/492,656, filed on Mar. 28, 2023.
Prior Publication US 2024/0331113 A1, Oct. 3, 2024
Int. Cl. G06T 5/77 (2024.01); A61B 3/113 (2006.01); A61B 3/14 (2006.01); G06T 7/00 (2017.01); G06T 7/292 (2017.01)
CPC G06T 5/77 (2024.01) [A61B 3/113 (2013.01); A61B 3/14 (2013.01); G06T 7/0002 (2013.01); G06T 7/292 (2017.01); G06T 2207/10012 (2013.01); G06T 2207/30041 (2013.01); G06T 2207/30196 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An ophthalmic system that images an eye region comprising at least one eye, comprising:
a camera system comprising a plurality of cameras configured to yield a plurality of image portions of the eye region, each camera located at a position relative to the eye region and configured to yield an image portion of the plurality of image portions;
an illuminator located at a position relative to the eye region and configured to direct light towards the eye region; and
a computer configured to:
receive the plurality of image portions from the camera system, the plurality of image portions comprising a first image portion and a second image portion, the first image portion provided by a first camera, the second image portion provided by a second camera;
identify one or more reflection pixels of the first image portion, the reflection pixels imaging a reflection of light from the illuminator reflected by a location of the eye region;
determine image information of one or more correction pixels of the second image portion, the correction pixels imaging the same location of the eye region; and
correct the reflection pixels using the identified image information to reduce the reflection by:
generating a correction overlay using the one or more correction pixels; and
placing the correction overlay over the one or more reflection pixels.