公开(公告)号：US11950849B2

公开(公告)日：2024-04-09

申请号：US16975399

申请日：2018-12-26

Applicant: TOPCON CORPORATION

Inventor： Yasufumi Fukuma ,  Hisashi Tsukada

IPC: A61B3/135 ,  A61B3/00 ,  A61B3/103 ,  A61B3/117 ,  A61B3/14

CPC classification number: A61B3/135 ,  A61B3/0058 ,  A61B3/103 ,  A61B3/1176 ,  A61B3/14

Abstract: An ophthalmic system of an embodiment includes a slit lamp microscope, three dimensional image constructing unit, rendering processor, display controller, report creating unit, and report output unit. The slit lamp microscope includes a front image acquiring unit that photographs an anterior eye segment to acquire a front image, and an image collecting unit that photographs the anterior eye segment with slit light to collect a plurality of images. The three dimensional image constructing unit constructs a three dimensional image based on the collected images. The rendering processor applies rendering to the three dimensional image to construct a rendered image. The display controller displays the front image and the rendered image on a display device. The report creating unit includes a user interface used for creating a report on information displayed. The report output unit outputs the report.

公开(公告)号：US10881295B2

公开(公告)日：2021-01-05

申请号：US16046244

申请日：2018-07-26

Applicant: TOPCON CORPORATION

Inventor： Hisashi Tsukada ,  Yasufumi Fukuma

IPC: A61B3/135 ,  A61B3/00 ,  A61B3/14

Abstract: An ophthalmic system of an embodiment includes a slit lamp microscope and an information processing apparatus. The slit lamp microscope includes an image acquisition device that acquires a three dimensional image by photographing a subject's eye, and a first communication device that transmits the three dimensional image to the information processing apparatus. The information processing apparatus includes a second communication device that receives the three dimensional image transmitted by the first communication device, a display controller that displays a first image based on the three dimensional image on a display device, a partial region designation processor that designates a partial region of the first image, and a rendering processor that renders the three dimensional image based on the partial region to construct a second image. The display controller displays the second image on the display device.

公开(公告)号：US12262948B2

公开(公告)日：2025-04-01

申请号：US16642066

申请日：2018-07-09

Applicant: Topcon Corporation

Inventor： Yasufumi Fukuma ,  Kazuhiro Oomori ,  Hisashi Tsukada

IPC: A61B3/10 ,  A61B3/00 ,  A61B3/13

Abstract: The present disclosure provides a microscope including a first optical member configured to guide light from a light source in a first optical axis direction; a first reflecting member configured to guide the light guided in the first optical axis direction in a second optical axis direction substantially orthogonal to the first optical axis direction; a second optical member configured to relay the light guided in the second optical axis direction; a second reflecting member configured to guide the light relayed by the second optical member in a third optical axis direction substantially orthogonal to the second optical axis direction; and a function expansion objective lens disposed on the third optical axis direction and configured to radiate the light guided in the third optical axis direction onto a predetermined portion of the observation target.

公开(公告)号：US12226160B2

公开(公告)日：2025-02-18

申请号：US18378711

申请日：2023-10-11

Applicant: TOPCON CORPORATION

Inventor： Yasufumi Fukuma ,  Hisashi Tsukada ,  Atsushi Kubota

IPC: G06K9/00 ,  A61B3/00 ,  A61B3/10 ,  A61B3/12 ,  A61B5/00 ,  G01B9/02 ,  G01B9/02091 ,  G06T3/14 ,  G06T3/20 ,  G06T3/60 ,  G06T7/32

Abstract: An OCT apparatus of an exemplary aspect includes an OCT scanner, image data generating unit, registration unit, and image data composing unit. The OCT scanner is configured to acquire three dimensional data sets by applying an OCT scan to mutually different three dimensional regions of a sample. The image data generating unit is configured to generate a plurality of pieces of image data from the three dimensional data sets. The registration unit is configured to perform a first registration between the plurality of pieces of image data by applying an image correlation calculation to each of overlap regions in the plurality of pieces of image data. The image data composing unit is configured to compose the plurality of pieces of image data based on a result of the first registration.

公开(公告)号：US11754516B2

公开(公告)日：2023-09-12

申请号：US17310845

申请日：2020-02-27

Applicant: Topcon Corporation ,  RIKEN

Inventor： Hisashi Tsukada ,  Shigenori Nagano ,  Yoshie Otake ,  Hideyuki Sunaga ,  Yuichi Yoshimura ,  Koji Ikado

IPC: G01N23/204 ,  G01V5/00 ,  G01N23/20 ,  G01N23/202

CPC classification number: G01N23/204 ,  G01N23/20 ,  G01N23/202 ,  G01V5/0025 ,  G01N2223/1063 ,  G01N2223/1066 ,  G01N2223/316 ,  G01N2223/646

Abstract: A neutron emission unit is configured to emit neutrons such that a center axis (Nh) of a neutron emission intersects a center axis direction of collimators (23a to 23e). A calculation unit is capable of generating information about an inspection object in the center axis direction of the collimators, based on position information of a neutron detector and/or position information of the neutron emission unit, information about an angle (θ1) at which the center axis of the neutron emission intersects the center axis direction of the collimators, and a neutron amount detected by the neutron detector.

公开(公告)号：US11747288B2

公开(公告)日：2023-09-05

申请号：US17279537

申请日：2019-09-25

Applicant: Topcon Corporation ,  RIKEN

Inventor： Shigenori Nagano ,  Hisashi Tsukada ,  Yoshie Otake ,  Koji Ikado ,  Yuichi Yoshimura ,  Hideyuki Sunaga

IPC: G01N23/05 ,  G01N23/09 ,  G01N23/204 ,  G01V5/00 ,  G01N23/20008 ,  H05H3/04 ,  H05H6/00 ,  H05H7/04 ,  H05H9/00 ,  G01N23/02

CPC classification number: G01N23/204 ,  G01N23/025 ,  G01N23/05 ,  G01N23/09 ,  G01N23/20008 ,  G01V5/0025 ,  G01V5/0066 ,  H05H3/04 ,  H05H6/00 ,  H05H7/04 ,  H05H9/00 ,  G01N2223/04 ,  G01N2223/045 ,  G01N2223/053 ,  G01N2223/106 ,  G01N2223/20 ,  G01N2223/204 ,  G01N2223/33

Abstract: A non-destructive inspection system 1 includes a neutron radiation source 3 capable of emitting neutrons N, and a neutron detector 14 capable of detecting neutrons Nb produced via an inspection object 6a among neutrons N emitted from the neutron radiation source 3. The neutron radiation source 3 includes a linear accelerator 11 capable of emitting charged particles P accelerated; a first magnet section 12 including magnets 12a and 12b facing each other, the magnets 12a and 12b being capable of deflecting the charged particles P in a direction substantially perpendicular to a direction of emission of the charged particles P from the linear accelerator 11; and a target section 13 capable of producing neutrons N by being irradiated with the charged particles P that have passed through the first magnet section 12.

公开(公告)号：US11849996B2

公开(公告)日：2023-12-26

申请号：US16917925

申请日：2020-07-01

Applicant: TOPCON CORPORATION

Inventor： Yasufumi Fukuma ,  Hisashi Tsukada ,  Atsushi Kubota

IPC: G06K9/00 ,  A61B3/10 ,  A61B5/00 ,  G01B9/02091 ,  G01B9/02 ,  G06T7/32 ,  A61B3/00 ,  A61B3/12 ,  G06T3/00 ,  G06T3/20 ,  G06T3/60

CPC classification number: A61B3/102 ,  A61B3/0025 ,  A61B3/12 ,  A61B5/0066 ,  G01B9/02083 ,  G01B9/02091 ,  G06T3/0068 ,  G06T3/20 ,  G06T3/60 ,  G06T7/32 ,  G06T2200/04 ,  G06T2207/10101 ,  G06T2207/20212 ,  G06T2207/30041

Abstract: An OCT apparatus of an exemplary aspect includes an OCT scanner, image data generating unit, registration unit, and image data composing unit. The OCT scanner is configured to acquire three dimensional data sets by applying an OCT scan to mutually different three dimensional regions of a sample. The image data generating unit is configured to generate a plurality of pieces of image data from the three dimensional data sets. The registration unit is configured to perform a first registration between the plurality of pieces of image data by applying an image correlation calculation to each of overlap regions in the plurality of pieces of image data. The image data composing unit is configured to compose the plurality of pieces of image data based on a result of the first registration.

公开(公告)号：US11617505B2

公开(公告)日：2023-04-04

申请号：US16633160

申请日：2018-02-07

Applicant: TOPCON CORPORATION

Inventor： Hisashi Tsukada ,  Yasufumi Fukuma

IPC: G06K9/00 ,  A61B3/00 ,  G16H70/60 ,  G16H50/50 ,  G16H30/20 ,  G16H50/70 ,  G16H50/20 ,  G16H30/40 ,  G06N20/00 ,  A61B3/10 ,  A61B3/135 ,  A61B3/14 ,  G06T7/00 ,  G16H40/60

Abstract: In an ophthalmic system of some embodiments, ophthalmic imaging apparatuses include slit lamp microscopes, and information processing system is connected to each ophthalmic imaging apparatus via a communication path. Each ophthalmic imaging apparatus is configured to acquire a three dimensional image by photographing a subject's eye, and transmit the three dimensional image to the information processing system. The information processing system is configured to receive the three dimensional image, store three dimensional images received, perform machine learning and/or data mining based on the three dimensional images, store knowledge acquired by the machine learning and/or data mining, and generate diagnosis support information by performing inference based on a three dimensional image of a subject's eye transmitted from one of the slit lamp microscopes knowledge stored in the knowledge storage.

公开(公告)号：US11229355B2

公开(公告)日：2022-01-25

申请号：US16917922

申请日：2020-07-01

Applicant: TOPCON CORPORATION

Inventor： Hisashi Tsukada ,  Atsushi Kubota ,  Yasufumi Fukuma

IPC: G01B9/02 ,  A61B3/10 ,  A61B5/00 ,  G06T7/32 ,  A61B3/00 ,  A61B3/12 ,  G06T3/00 ,  G06T3/20 ,  G06T3/60

Abstract: An OCT imaging method of some exemplary aspects includes acquiring a first three dimensional data set by applying an OCT scan targeting a first three dimensional region of a sample, creating a first two dimensional map based on representative intensity values respectively of a plurality of pieces of A-scan data included in the first three dimensional data set, designating a second three dimensional region of the sample based on the first two dimensional map, acquiring a second three dimensional data set by applying an OCT scan targeting the second three dimensional region, and generating image data from at least part of the second three dimensional data set.

公开(公告)号：US11375892B2

公开(公告)日：2022-07-05

申请号：US16916154

申请日：2020-06-30

Applicant: TOPCON CORPORATION

Inventor： Hisashi Tsukada ,  Atsushi Kubota ,  Yasufumi Fukuma

IPC: G01B9/02 ,  A61B3/10 ,  A61B5/00 ,  G01B9/02091 ,  G06T7/32 ,  A61B3/00 ,  A61B3/12 ,  G06T3/00 ,  G06T3/20 ,  G06T3/60

Abstract: An exemplary aspect is a method of processing data acquired by applying an optical coherence tomography (OCT) scan to a sample. The method includes preparing a three dimensional data set acquired from a sample, creating a two dimensional map based on representative intensity values of a plurality of pieces of A-scan data included in the three dimensional data set, placing the three dimensional data set based on the two dimensional map, and executing a process based on at least a partial data set of the three dimensional data set on which placement based on the two dimensional map has been performed.