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11.发明授权公开(公告)号：US10881295B2
公开(公告)日：2021-01-05
申请号：US16046244
申请日：2018-07-26
申请人： TOPCON CORPORATION
发明人： Hisashi Tsukada , Yasufumi Fukuma
摘要： 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.
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公开(公告)号：US20200100673A1
公开(公告)日：2020-04-02
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.
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公开(公告)号：US11880943B2
公开(公告)日：2024-01-23
申请号：US17727847
申请日：2022-04-25
申请人： Topcon Corporation
发明人： Yasufumi Fukuma , Satoshi Yanobe
IPC分类号： G06T19/00 , G06F18/214
CPC分类号： G06T19/003 , G06F18/214
摘要： The data set receiving unit 13 of the information processing apparatus 1 of an aspect example receives a data set that includes at least BIM data. The route setting processor 151 sets a route, which is arranged inside and/or outside a virtual building represented by the BIM data, based on the data set received. The virtual image set generating processor 152 generates a virtual image set of the virtual building along the route, based on the received data set and the set route. The inference model creating processor 153 creates an inference model by applying machine learning with training data that includes at least the generated virtual image set to a neural network. The inference model created is used to identify data of a building material from data acquired by measuring a building.
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公开(公告)号：US11503996B2
公开(公告)日：2022-11-22
申请号：US16610259
申请日：2018-05-02
申请人： Topcon Corporation
发明人： Yasufumi Fukuma , Kazuhiro Oomori
摘要： The object of the present invention is to develop an ophthalmologic microscope of a new method that increases the degree of freedom in the optical design in the Galilean ophthalmologic microscope provided with an OCT optical system. The present invention provides an ophthalmologic microscope 1 comprising; an illuminating optical system 300, an observation optical system 400; an objective lens 2; and an OCT optical system 500, characterized in that the optical axis O-500 of the OCT optical system does not penetrate through the objective lens 2, it comprises objective lens for OCT 507 through which the optical axis O-500 of the OCT optical system penetrates, and deflection optical elements 503a, 503b for scanning of the OCT optical system and the objective lens for OCT 507 are in a substantially optically conjugate positional relation.
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15.发明授权公开(公告)号：US11375892B2
公开(公告)日：2022-07-05
申请号：US16916154
申请日：2020-06-30
申请人： TOPCON CORPORATION
发明人： Hisashi Tsukada , Atsushi Kubota , Yasufumi Fukuma
IPC分类号： G01B9/02 , A61B3/10 , A61B5/00 , G01B9/02091 , G06T7/32 , A61B3/00 , A61B3/12 , G06T3/00 , G06T3/20 , G06T3/60
摘要： 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.
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公开(公告)号：US11013401B2
公开(公告)日：2021-05-25
申请号：US16200676
申请日：2018-11-27
申请人： Topcon Corporation
摘要： An ophthalmologic apparatus of some exemplary embodiments includes an illumination system, interference photographing system, anterior eye segment photographing system, first optical path coupling element, and controller. The illumination system projects illumination light output from a light source, onto the anterior eye segment of a subject's eye. The interference photographing system performs photographing of an interference pattern formed on the cornea by the illumination light. The anterior eye segment photographing system performs photographing of the anterior eye segment onto which the illumination light is being projected. The 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. The controller controls a display device to display an interference image acquired by the interference photographing system, over an anterior eye segment image acquired by the anterior eye segment photographing system.
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公开(公告)号：US11925415B2
公开(公告)日：2024-03-12
申请号：US16980452
申请日：2019-03-13
申请人： TOPCON CORPORATION
CPC分类号： A61B3/135 , A61B3/0008 , A61B3/0041 , A61B3/0075 , A61B3/0091 , A61B3/117 , A61B3/14
摘要： A slit lamp microscope of some embodiment examples includes an illumination system, first photographing system, first movement mechanism, and controller. The illumination system includes a slit forming unit that forms a slit for generating slit light and projects the slit light onto an anterior segment of a subject's eye from a first direction. The first photographing system photographs the anterior segment onto which the slit light is being projected, from a second direction different from the first direction. The first movement mechanism moves a movable portion that includes at least the slit forming unit. The controller performs a first control for the first movement mechanism to move the movable portion and a second control for the first photographing system to photograph the anterior segment a plurality of times in parallel with each other.
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公开(公告)号：US11871994B2
公开(公告)日：2024-01-16
申请号：US17494273
申请日：2021-10-05
申请人： Topcon Corporation
发明人： Yasufumi Fukuma , Kazuhiro Oomori
摘要： The object of the present invention is to develop an ophthalmologic microscope of a new method that increases the degree of freedom in the optical design in the Galilean ophthalmologic microscope provided with an OCT optical system. The present invention provides an ophthalmologic microscope, wherein an observation optical system, an objective lens, and an OCT optical system are placed in such a way that the optical axis of the OCT optical system does not penetrate through objective lens, and the optical axis of the observation optical system and the optical axis of the OCT optical system are non-coaxial, and wherein the ophthalmologic microscope further comprises a SLO optical system that scans a light ray which is a visible ray, a near infrared ray, or an infrared ray and guides the light to the subject's eye so as to become substantially coaxial with the optical axis of the OCT optical system.
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公开(公告)号：US20210082116A1
公开(公告)日：2021-03-18
申请号：US17103058
申请日：2020-11-24
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.
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公开(公告)号：US20200163545A1
公开(公告)日：2020-05-28
申请号：US16200676
申请日：2018-11-27
申请人： Topcon Corporation
摘要： An ophthalmologic apparatus of some exemplary embodiments includes an illumination system, interference photographing system, anterior eye segment photographing system, first optical path coupling element, and controller. The illumination system projects illumination light output from a light source, onto the anterior eye segment of a subject's eye. The interference photographing system performs photographing of an interference pattern formed on the cornea by the illumination light. The anterior eye segment photographing system performs photographing of the anterior eye segment onto which the illumination light is being projected. The 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. The controller controls a display device to display an interference image acquired by the interference photographing system, over an anterior eye segment image acquired by the anterior eye segment photographing system.
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