公开(公告)号：US11676255B2

公开(公告)日：2023-06-13

申请号：US17401957

申请日：2021-08-13

Applicant: Optos Plc

Inventor： Muzammil A. Arain ,  Jeffery Benshetler ,  Eugene Russiyanov ,  Tushar M. Ranchod

IPC: G06T5/50 ,  G06V40/18 ,  G06T7/73 ,  G06T3/40 ,  G06T11/00 ,  G06T7/11 ,  G06T7/64 ,  G06T7/00 ,  H04N23/90 ,  H04N23/698

CPC classification number: G06T5/50 ,  G06T3/4007 ,  G06T7/0014 ,  G06T7/11 ,  G06T7/64 ,  G06T7/73 ,  G06T11/00 ,  G06V40/193 ,  G06V40/197 ,  H04N23/698 ,  H04N23/90 ,  G06T2207/20021 ,  G06T2207/20068 ,  G06T2207/20081 ,  G06T2207/20221 ,  G06T2207/30041 ,  G06T2207/30204

Abstract: Generating a correction algorithm includes obtaining a model of an eye, the model including a front portion with optics to mimic a cornea and a lens of a human eye, and a rear portion having a generally hemispherical-shaped body to mimic a retina of the human eye. The rear portion includes physical reference lines on an inside surface of the generally hemispherical-shaped body. Images of the model are captured using an image capturing device aimed at the model. Vertices of the physical reference lines are identified according to a given projection technique for displaying generally hemispherical-shaped body in a two-dimensional image in the captured images. Idealized placement of the vertices of the physical reference lines is obtained according to the given projection technique. The result is a correction algorithm used to adjust any pixel of an image of an actual eye in the x-axis and in the y-axis.

公开(公告)号：US11763490B2

公开(公告)日：2023-09-19

申请号：US16936891

申请日：2020-07-23

Applicant: Optos plc

Inventor： Brendan Hamel-Bissell ,  Benjamin Adam Jacobson ,  Clint Suson ,  Clark Pentico ,  Andre E. Adams ,  Tushar M. Ranchod

IPC: G06T7/80 ,  H04N17/00 ,  G06T5/50 ,  H04N23/56 ,  H04N23/67

CPC classification number: G06T7/80 ,  G06T5/50 ,  H04N17/002 ,  H04N23/56 ,  H04N23/67 ,  G06T2207/20221 ,  G06T2207/30201

Abstract: Method of aligning an imaging device with respect to an object, the imaging device comprising two or more optical channels, is disclosed. The method may include aiming the two or more optical channels at corresponding overlapping zones of the object such that the two or more optical channels are oriented at different angles relative to each other and off-axis relative to a central axis of the imaging device. The method may additionally include guiding or focusing the imaging device relative to the object using composite images created by combining separate images from the two or more optical channels.

公开(公告)号：US11633095B2

公开(公告)日：2023-04-25

申请号：US16698024

申请日：2019-11-27

Applicant: Optos Plc

Inventor： Benjamin A. Jacobson ,  Clark Pentico ,  Andre E. Adams ,  Brendan Hamel-Bissell ,  Tushar M. Ranchod

IPC: A61B3/00 ,  A61B3/12 ,  A61B3/14 ,  A61B3/125

Abstract: A device for illuminating a posterior segment of an eye may include multiple channels. Each of the channels may include multiple illumination paths such as a first region illumination path, and a second region illumination path. The first region illumination path and the second region illumination path may be illuminated at different times such that a first region and a second region may be imaged without interference from a non-illuminated illumination path.