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公开(公告)号：US20220248947A1
公开(公告)日：2022-08-11
申请号：US17730188
申请日：2022-04-27
Applicant: Topcon Corporation
Inventor： Takaaki SHIRATORI , Takuya OKI , Hiroyuki AOKI , Yusuke ONO
Abstract: Provided are an ophthalmologic device and a method of controlling the same capable of accurately and reliably acquiring ocular characteristics of a subject eye. The ophthalmologic device includes: a face supporting unit configured to support a face of an examinee; an anterior ocular segment image acquiring unit configured to repeatedly acquire an anterior ocular segment image of the subject eye of the face supported by the face supporting unit; a pupil image detecting unit configured to detect a pupil image of the subject eye for each anterior ocular segment image based on the anterior ocular segment image repeatedly acquired by the anterior ocular segment image acquiring unit; and a determining unit configured to determine whether or not the face is properly supported by the face supporting unit based on a result of detection of the pupil image for each anterior ocular segment image by the pupil image detecting unit.
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公开(公告)号：US20220386868A1
公开(公告)日：2022-12-08
申请号：US17774486
申请日：2020-12-21
Applicant: Topcon Corporation
Inventor： Yusuke ONO
Abstract: In the ophthalmic apparatus 1 of an aspect example, the image acquiring unit (the fundus camera unit 2, the OCT unit 100, the image data constructing unit 220) acquires an anterior segment image constructed based on data collected from an anterior segment of a subject's eye by OCT scanning. The part image identifying processor 231 performs identification of two or more part images respectively corresponding to two or more parts of the anterior segment from the anterior segment image acquired. The part image assessing processor 232 performs image quality assessment of each of the two or more part images. The anterior segment image assessing processor 233 performs image quality assessment of the anterior segment image based on two or more pieces of assessment data respectively obtained for the two or more part images.
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公开(公告)号：US20230115056A1
公开(公告)日：2023-04-13
申请号：US17800536
申请日：2021-01-27
Applicant: Topcon Corporation
Inventor： Kazunori ASANUMA , Yusuke ONO
Abstract: An ophthalmic apparatus of an aspect example includes an image acquiring unit, a first image region identifying processor, and a second image region identifying processor. The image acquiring unit is configured to acquire an anterior segment image constructed based on data collected from an anterior segment of a subject's eye by OCT scanning. The first image region identifying processor is configured to identify a first image region corresponding to a predetermined part of the anterior segment by analyzing a first part of the anterior segment image acquired by the image acquiring unit. The second image region identifying processor is configured to identify a second image region corresponding to the predetermined part based on the first image region identified by the first image region identifying processor, the second image region being inside a second part that includes the first part as a proper subset.
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公开(公告)号：US20220414845A1
公开(公告)日：2022-12-29
申请号：US17780038
申请日：2020-12-21
Applicant: Topcon Corporation
Inventor： Kazunori ASANUMA , Yusuke ONO
Abstract: An ophthalmic apparatus of an aspect example includes an image acquiring unit, a corneal shape estimating processor, and a first image correcting processor. The image acquiring unit is configured to acquire an anterior segment image constructed based on data collected from an anterior segment of a subject's eye by optical coherence tomography (OCT) scanning. The anterior segment image includes a missing part corresponding to a part of a cornea. The corneal shape estimating processor is configured to estimate a shape of the missing part of a cornea image by analyzing the anterior segment image acquired by the image acquiring unit. The first image correcting processor is configured to correct distortion of the anterior segment image based at least on the shape of the missing part estimated by the corneal shape estimating processor.
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公开(公告)号：US20190350455A1
公开(公告)日：2019-11-21
申请号：US16476113
申请日：2017-12-08
Applicant: TOPCON CORPORATION
Inventor： Yusuke ONO
Abstract: An ophthalmic apparatus according to an embodiment includes a fixation system, a data acquisition device, analyzing circuitry, and controlling circuitry. The fixation system projects fixation light onto a subject's eye. The data acquisition device acquires data by applying optical coherence tomography scanning to the subject's eye onto which the fixation light is being projected. The analyzing circuitry analyzes the data to specify the position of a predetermined site of the subject's eye. The controlling circuitry controls at least one of the fixation system and the data acquisition device based on the positional relationship between the position of the predetermined site specified by the analyzing circuitry and a scan area by the data acquisition device.
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Patent Agency Ranking
公开(公告)号：US20230380680A1
公开(公告)日：2023-11-30
申请号：US18031904
申请日：2021-10-11
Applicant: Topcon Corporation
Inventor： Yusuke ONO
CPC classification number: A61B3/102 , A61B3/0091 , A61B3/117 , G06T7/60 , G06T2207/30041
Abstract: The ophthalmic device 1 according to an exemplary embodiment of the present invention comprises an LCD 39, an OCT unit 250, an inclination information generation unit 231, and a control unit 210. The LCD 39 presents a fixation target to an eye E under examination. The OCT unit 250 applies an OCT scan to an anterior eye part Ea of the eye E under examination, and constructs an image. The inclination information generation unit 231 generates inclination information indicating the inclination state of the anterior eye part Ea that has been drawn in the image constructed by the OCT unit 250. On the basis of the inclination information generated by the inclination information generation unit 231, the control unit 210 controls the LCD 39 to move the fixation target.
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公开(公告)号：US20220386869A1
公开(公告)日：2022-12-08
申请号：US17891140
申请日：2022-08-19
Applicant: Topcon Corporation
Inventor： Yusuke ONO , Hiroyuki AOKI
Abstract: An ophthalmologic apparatus of an embodiment example includes a front image acquiring device, a first search processor, and a second search processor. The front image acquiring device is configured to acquire a front image of a fundus of a subject's eye. The first search processor is configured to search for an interested region corresponding to an interested site of the fundus based on a brightness variation in the front image. The second search processor is configured to search for the interested region by template matching between the front image and a template image in the event that the interested region has not been detected by the first search processor.
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公开(公告)号：US20210161376A1
公开(公告)日：2021-06-03
申请号：US15734239
申请日：2019-04-15
Applicant: Topcon Corporation
Inventor： Yusuke ONO
Abstract: A scan area setting unit of an exemplary ophthalmic apparatus sets a scan area in a region passing through an iris outer edge. A first scan controller controls an OCT optical system to apply an OCT scan to the scan area. An image quality evaluating unit calculates an image quality evaluation value of an image from the OCT scan. A corner angle image detecting unit analyzes the image to detect a corner angle image. A position judging unit judges whether the corner angle image is located within a first area in an image frame. A second scan controller controls the OCT optical system to apply an OCT scan of a predetermined pattern to the anterior segment, if the image quality evaluation value is equal to or greater than a threshold and the corner angle image is located within the first area.
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公开(公告)号：US20210153737A1
公开(公告)日：2021-05-27
申请号：US15734237
申请日：2019-04-15
Applicant: Topcon Corporation
Inventor： Yusuke ONO
Abstract: An ophthalmic apparatus of an embodiment example applies an OCT scan to an anterior segment and constructs an image from acquired data. Further, the ophthalmic apparatus analyzes the image to detect an artifact along an A-scan direction and moves an OCT optical system based on the artifact. Also, the ophthalmic apparatus analyzes the image to detect a corneal image and judges whether an intersection between the artifact and the corneal image is located within a predetermined area. In addition, the ophthalmic apparatus calculates an image quality evaluation value of the image, and controls the OCT optical system to perform an OCT scan of a predetermined pattern if the intersection is located within the area and the image quality evaluation value is equal to or greater than a predetermined threshold.
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公开(公告)号：US20200288973A1
公开(公告)日：2020-09-17
申请号：US16885325
申请日：2020-05-28
Applicant: TOPCON CORPORATION
Inventor： Yusuke ONO
Abstract: An ophthalmologic processing apparatus according to embodiments acquires data of a fundus of a subject's eye optically. The ophthalmologic apparatus includes a fixation system, an image acquisition unit, a specifying unit, and a determination unit. The fixation system is configured to project fixation light onto an eye of a subject. The image acquisition unit is configured to acquire an image of the fundus of the subject's eye in a state where the fixation light is projected by the fixation system. The specifying unit is configured to analyze the image acquired by the image acquisition unit to specify an image region corresponding to a predetermined site of the fundus. The determination unit is configured to determine whether or not the image region specified by the specifying unit is included within a predetermined range in the image acquired by the image acquisition unit.
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