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公开(公告)号:US20240000310A1
公开(公告)日:2024-01-04
申请号:US18226802
申请日:2023-07-27
Applicant: Topcon Corporation
Inventor: Toshihiro MINO , Shuyun YEH , Masashi NAKAJIMA , Yasufumi FUKUMA
CPC classification number: A61B3/1005 , A61B3/0025 , A61B3/107 , A61B3/185 , A61B3/117 , A61B3/102 , A61B3/12 , A61B3/135 , A61B3/0058
Abstract: An ophthalmic information processing apparatus includes an acquisition unit and a normalizer. The acquisition unit is configured to acquire eye shape data or an intraocular distance of an eye of a subject. The normalizer is configured to normalize the eye shape data or the intraocular distance based on body data of the subject or a refractive power of the eye of the subject.
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2.
公开(公告)号:US20230404400A1
公开(公告)日:2023-12-21
申请号:US18033815
申请日:2020-12-09
Applicant: Topcon Corporation
Inventor: Kazuhiro YAMADA , Kazuhiro OOMORI , Yasufumi FUKUMA
CPC classification number: A61B3/145 , G06T7/97 , G06T7/0012 , H04N23/71 , H04N23/74 , H04N23/76 , A61B3/13 , A61B3/117 , A61B3/12 , G06T2207/30041 , G06T2207/10056
Abstract: An ophthalmic observation apparatus of an embodiment example includes a moving image generating unit, a movement mechanism, an analyzing processor, and a first controller. The moving image generating unit is configured to generate a moving image by illuminating and photographing the subject's eye. The movement mechanism is configured to move the moving image generating unit. The analyzing processor is configured to sequentially analyze a plurality of still images included in the moving image generated by the moving image generating unit being moved by the movement mechanism to sequentially detect images of a predetermined site of the subject's eye. The first controller is configured to control the movement mechanism based on a change in a predetermined image parameter of the images sequentially detected by the analyzing processor.
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公开(公告)号:US20210256679A1
公开(公告)日:2021-08-19
申请号:US17178243
申请日:2021-02-18
Applicant: Topcon Corporation
Inventor: Yasufumi FUKUMA , Mao ZAIXING , Satoshi YANOBE , Toshio YAMADA
Abstract: The system 1 of an aspect example is used for building photogrammetry. The design data 141 includes virtual material information, which includes virtual material position information, on attributes for each virtual material of a virtual building. The physical material data 142, which includes physical material position data, is generated based on measured data of a physical building constructed based on the design data 141, relates to the attributes for each physical material. The material associating processor 151 generates pairs of virtual and physical materials by determining an association between the virtual and physical materials based on the virtual material position information and the physical material position data. For each of the pairs, the attribute associating processor 152 determines an association between the virtual material information and the physical material data in accordance with the attributes.
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4.
公开(公告)号:US20210153735A1
公开(公告)日:2021-05-27
申请号:US16633160
申请日:2018-02-07
Applicant: TOPCON CORPORATION
Inventor: Hisashi TSUKADA , Yasufumi FUKUMA
IPC: A61B3/00 , A61B3/135 , A61B3/14 , A61B3/10 , G16H30/20 , G16H50/20 , G16H70/60 , G16H50/50 , G16H30/40 , G16H50/70 , G06N20/00 , G06T7/00
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.
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5.
公开(公告)号:US20230397811A1
公开(公告)日:2023-12-14
申请号:US18033849
申请日:2021-02-02
Applicant: Topcon Corporation
Inventor: Kazuhiro YAMADA , Kazuhiro OOMORI , Yasufumi FUKUMA
Abstract: An ophthalmic observation apparatus according to an embodiment example includes a moving image generating unit, an analyzing processor, a target position determining processor, and a display controller. The moving image generating unit is configured to generate a moving image by photographing the subject's eye. The analyzing processor is configured to analyze a still image included in the moving image to detect an image of a predetermined site of the subject's eye. The target position determining processor is configured to determine a target position for a predetermined treatment based at least on the image of the predetermined site detected by the analyzing processor. The display controller is configured to display, on a display device, the moving image and target position information that represents the target position.
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公开(公告)号:US20230397809A1
公开(公告)日:2023-12-14
申请号:US18033802
申请日:2020-12-09
Applicant: Topcon Corporation
Inventor: Kazuhiro YAMADA , Kazuhiro OOMORI , Yasufumi FUKUMA
Abstract: An ophthalmic observation apparatus of an embodiment includes a microscope, a processor, and a display controller. The microscope includes a pair of photography systems and is configured to acquire a pair of pieces of moving image data of a subject's eye. The processor is configured to perform first processing including at least one of a control of the microscope and image processing applied to at least one of the pair of pieces of moving image data, such that a predetermined parameter of the pair of pieces of moving image data satisfies a first condition. The display controller is configured to display a pair of moving images based on the pair of pieces of moving image data produced by the first processing on a display device.
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公开(公告)号:US20230277055A1
公开(公告)日:2023-09-07
申请号:US18197754
申请日:2023-05-16
Applicant: Topcon Corporation
Inventor: Yasufumi FUKUMA , Yoshikiyo MORIGUCHI
CPC classification number: A61B3/12 , A61B3/14 , A61B3/102 , A61B3/1025
Abstract: A fundus observation apparatus includes an illumination optical system, a two-dimensional image sensor, and a deflecting member. The illumination optical system is configured to illuminate a fundus of a subject's eye with line-shaped illumination light. The two-dimensional image sensor is configured to receive returning light of the illumination light from the fundus on a movable focal plane at a position substantially conjugate optically to the fundus. The deflecting member is configured to couple an optical path of the illumination light and an optical path of the returning light and to scan the fundus with the illumination light by deflecting the illumination light in synchronization with a movement of the focal plane. The deflecting member has a configuration that allows the returning light to be transmitted through a first region and to reflect the illumination light in a second region different from the first region.
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公开(公告)号:US20220395175A1
公开(公告)日:2022-12-15
申请号:US17594912
申请日:2020-04-24
Applicant: Topcon Corporation
Inventor: Yasufumi FUKUMA , Zhenguo WANG , Zaixing MAO , Kazuhiro OOMORI , Makoto FUJINO
Abstract: In an ophthalmologic apparatus, including: an objective lens that faces a subject's eye; an illumination optical system that irradiates a cornea of the subject's eye with illumination light through the objective lens; and a corneal measurement optical system including an interference image capturing camera that takes an image of a corneal reflection light, which is a reflection of the illumination light reflected from the cornea, through the objective lens, a numerical aperture G of the illumination optical system is larger than a numerical aperture g of the corneal measurement optical system.
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公开(公告)号:US20200214555A1
公开(公告)日:2020-07-09
申请号:US16610259
申请日:2018-05-02
Applicant: Topcon Corporation
Inventor: Yasufumi FUKUMA , Kazuhiro OOMORI
Abstract: 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 0-500 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 0-500 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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公开(公告)号:US20250111518A1
公开(公告)日:2025-04-03
申请号:US18726358
申请日:2022-12-23
Applicant: TOPCON CORPORATION
Inventor: Toru ITO , Yasufumi FUKUMA , Zaixing MAO , Hisashi TSUKADA
Abstract: Provided is an object measurement device for measuring the shape of an object by recognizing the object using a machine learning model, automating determination of an edge detection direction and determination of a region for performing edge processing, and performing highly accurate edge extraction in units of sub-pixels, for example. An object measurement device according to the present invention comprises: an object recognition unit that recognizes an object in an image by inputting an acquired image as input data into a trained model, and outputs a region of the object as a recognition result; an edge detection direction determination unit that determines an edge detection direction for the region of the object recognized by the object recognition unit; an edge processing region determination unit that determines an edge processing region for the region of the object recognized by the object recognition unit; and an edge detection unit that performs edge detection in the edge detection direction determined by the edge detection direction determination unit, for the edge processing region determined by the edge processing region determination unit.
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