公开(公告)号：US20230419451A1

公开(公告)日：2023-12-28

申请号：US18212212

申请日：2023-06-21

Applicant: Topcon Corporation

Inventor： Shinnosuke AZUMA

IPC: G06T5/00

CPC classification number: G06T5/002 ,  G06T2207/10101 ,  G06T2207/20216 ,  G06T2207/20081

Abstract: An embodiment is a method of processing an optical coherence tomography (OCT) image. The method is configured to acquire a plurality of images by applying a plurality of OCT scans corresponding to a plurality of different polarization conditions to a sample, and then generate a mean image with a reduced birefringence-derived artifact by applying averaging to the plurality of images corresponding to the plurality of different polarization conditions.

公开(公告)号：US20220409046A1

公开(公告)日：2022-12-29

申请号：US17842787

申请日：2022-06-17

Applicant: Topcon Corporation

Inventor： Shinnosuke AZUMA

IPC: A61B3/135 ,  A61B3/10 ,  A61B3/12

Abstract: In the ophthalmic imaging apparatus of an aspect example, the first image collecting unit collects a series of Scheimpflug images by performing scanning of a three dimensional region of a subject's eye with slit light. The second image collecting unit collects a series of time series images by performing repetitive photography of the subject's eye in parallel with the scanning of the three dimensional region performed by the first image collecting unit. The first image analyzing unit analyzes the series of time series images to determine time series shifts of the slit light during the scanning of the three dimensional region performed by the first image collecting unit. The image interpolating unit performs interpolation of the series of Scheimpflug images based on the time series shifts of the slit light determined by the first image analyzing unit.

公开(公告)号：US20220273170A1

公开(公告)日：2022-09-01

申请号：US17683379

申请日：2022-03-01

Applicant: University of Tsukuba ,  Topcon Corporation

Inventor： Yoshiaki YASUNO ,  Shuichi MAKITA ,  Tatsuo YAMAGUCHI ,  Shinnosuke AZUMA

IPC: A61B3/10 ,  A61B3/14 ,  A61B3/113 ,  A61B3/00 ,  G06N20/00 ,  G16H30/40 ,  G16H30/20

Abstract: A method of processing ophthalmic data of some embodiment examples includes preparing a data set acquired by applying optical scanning of a two-dimensional pattern to a subject's eye. The two-dimensional pattern of the optical scanning includes a series of cycles that intersects each other. The method further includes generating position history data based on the data set. The position history data represents a temporal change in a position of the subject's eye.