-
公开(公告)号：US11813022B2
公开(公告)日：2023-11-14
申请号：US17946064
申请日：2022-09-16
申请人： TOPCON CORPORATION
发明人： Yasufumi Fukuma , Takefumi Hayashi , Yoko Tatara
CPC分类号： A61B3/102 , A61B3/0025 , A61B3/152
摘要： An ophthalmic apparatus of an exemplary aspect performs the first and second OCT scans on a subject's eye. The first OCT scan is performed on the first region including the first site of the subject's eye, and the second OCT scan is performed on the second region including the second site. The ophthalmic apparatus acquires the first deviation information of the subject's eye prior to the first OCT scan and performs alignment, and also acquires the second deviation information of the subject's eye prior to the second OCT scan and performs alignment. The ophthalmic apparatus calculates the distance between the first site and the second site based on the first data acquired through the first OCT scan and second data acquired through the second OCT scan.
-
2.发明授权公开(公告)号：US11617505B2
公开(公告)日：2023-04-04
申请号：US16633160
申请日：2018-02-07
申请人： TOPCON CORPORATION
发明人： Hisashi Tsukada , Yasufumi Fukuma
IPC分类号： 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
摘要： 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
申请人： TOPCON CORPORATION
发明人： Hisashi Tsukada , Atsushi Kubota , Yasufumi Fukuma
IPC分类号： G01B9/02 , A61B3/10 , A61B5/00 , G06T7/32 , A61B3/00 , A61B3/12 , G06T3/00 , G06T3/20 , G06T3/60
摘要： 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：US10743762B2
公开(公告)日：2020-08-18
申请号：US16146144
申请日：2018-09-28
申请人： TOPCON CORPORATION
发明人： Hitoshi Shimizu , Masashi Nakajima , Tony H. Ko , Jonathan Liu , Yasufumi Fukuma
摘要： An ophthalmologic apparatus according to the embodiments includes an OCT optical system, an alignment unit, an image forming unit, a first calculator, and a second calculator. The OCT optical system is configured to acquire OCT data of a fundus of a subject's eye by projecting measurement light onto the fundus. The alignment unit is configured to perform alignment of the OCT optical system with reference to a predetermined site of the subject's eye. The image forming unit is configured to form a tomographic image of the fundus based on the OCT data acquired by the OCT optical system which has been aligned by the alignment unit. The first calculator is configured to calculate a first tilt angle of the tomographic image. The second calculator is configured to calculate a second tilt angle of the fundus by correcting the first tilt angle based on alignment result of the OCT optical system with respect to the predetermined site by the alignment unit.
-
公开(公告)号：US20200163548A1
公开(公告)日：2020-05-28
申请号：US16200687
申请日：2018-11-27
申请人： Topcon Corporation
摘要： An illumination system of an ophthalmologic apparatus of an exemplary embodiment projects illumination light from a light source onto the anterior eye segment of a subject's eye. An interference photographing system photographs an interference pattern formed on the cornea by the illumination light. An anterior eye segment photographing system photographs the anterior eye segment onto which the illumination light is being projected. A first optical path coupling element couples the optical path of the interference photographing system and the optical path of the anterior eye segment photographing system with one another. A controller controls a display device to display an observation interference image that is at least part of an interference image acquired by the interference photographing system and an anterior eye segment image acquired by the anterior eye segment photographing system together with each other, and controls the display device to display observation location information indicating a location of the observation interference image in the anterior eye segment image.
-
公开(公告)号：US20190259163A1
公开(公告)日：2019-08-22
申请号：US16277319
申请日：2019-02-15
申请人： Topcon Corporation
发明人： Zaixing Mao , Zhenguo Wang , Kinpui Chan , Yasufumi Fukuma
摘要： A machine learning model is trained to identify the texture difference between the different layers of a multilayer object. By training with data in full 3D space, the resulting model is capable of predicting the probability that each pixel in a 3D image belongs to a certain layer. With the resulting probability map, comparing probabilities allows one to determine boundaries between layers, and/or other properties and useful information such as volume data.
-
公开(公告)号：US12029485B2
公开(公告)日：2024-07-09
申请号：US16642052
申请日：2018-08-28
申请人： Topcon Corporation
发明人： Yasufumi Fukuma , Kazuhiro Oomori
摘要： An ophthalmic microscope including an observation optical system having a first focal point in front of an eye; an objective auxiliary lens positionable on the eye side of an objective lens in the observation optical system or releasable therefrom, a focal point when the objective auxiliary lens is positioned to a second focal point on an anterior ocular eye position; and a front lens positionable further toward the eye side than the first focal point or releasable from the position, a focal point through the eye's crystalline lens when the front lens is set to a third focal point and a posterior ocular segment position of the eye, the objective auxiliary lens set and the front lens released during anterior ocular segment observation, the front lens set and the objective auxiliary lens released during posterior ocular segment observation, without changing a positional relationship between the objective lens and eye.
-
公开(公告)号：US12011225B2
公开(公告)日：2024-06-18
申请号：US17251210
申请日：2019-06-12
申请人： Topcon Corporation
CPC分类号： A61B3/135 , A61B3/0008 , A61B3/14
摘要： A slit lamp microscope of some embodiment examples includes an illumination system, photography system, and movement mechanism. The illumination system projects slit light onto an anterior segment of an eye. The photography system includes an optical system and image sensor. The optical system directs light coming from the anterior segment onto which the slit light is being projected. The image sensor includes a light detecting plane that receives the light directed by the optical system. The movement mechanism moves the illumination and photography systems. The subject plane along the optical axis of the illumination system, the optical system, and the light detecting plane satisfy the Scheimpflug condition. The photography system acquires a plurality of images of the anterior segment by performing repetitive photography in parallel with movement of the illumination and photography systems performed by the movement mechanism.
-
公开(公告)号：US11950849B2
公开(公告)日：2024-04-09
申请号：US16975399
申请日：2018-12-26
申请人： TOPCON CORPORATION
发明人： Yasufumi Fukuma , Hisashi Tsukada
CPC分类号： A61B3/135 , A61B3/0058 , A61B3/103 , A61B3/1176 , A61B3/14
摘要： 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：US10905325B2
公开(公告)日：2021-02-02
申请号：US16200687
申请日：2018-11-27
申请人： Topcon Corporation
摘要： An illumination system of an ophthalmologic apparatus of an exemplary embodiment projects illumination light from a light source onto the anterior eye segment of a subject's eye. An interference photographing system photographs an interference pattern formed on the cornea by the illumination light. An anterior eye segment photographing system photographs the anterior eye segment onto which the illumination light is being projected. A first optical path coupling element couples the optical path of the interference photographing system and the optical path of the anterior eye segment photographing system with one another. A controller controls a display device to display an observation interference image that is at least part of an interference image acquired by the interference photographing system and an anterior eye segment image acquired by the anterior eye segment photographing system together with each other, and controls the display device to display observation location information indicating a location of the observation interference image in the anterior eye segment image.
-
-
-
-
-
-
-
-
-
搜索结果
24 条记录 (耗时 0.016 秒)
