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公开(公告)号：US11903646B2
公开(公告)日：2024-02-20
申请号：US15734237
申请日：2019-04-15
Applicant: Topcon Corporation
Inventor： Yusuke Ono
CPC classification number: A61B3/102 , A61B3/0025 , G06T7/0012 , G06T7/70 , G06T2207/10101 , G06T2207/30041 , G06T2207/30168 , G06V2201/03
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：US11219363B2
公开(公告)日：2022-01-11
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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公开(公告)号：US11179034B2
公开(公告)日：2021-11-23
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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公开(公告)号：US10993616B2
公开(公告)日：2021-05-04
申请号：US16113246
申请日：2018-08-27
Applicant: TOPCON CORPORATION
Inventor： Yusuke Ono
IPC: A61B3/14 , A61B3/00 , A61B3/117 , A61B3/12 , A61B3/10 , G06T7/246 , G06T7/73 , G06T7/32 , A61B3/13 , A61B3/15 , A61B90/00
Abstract: An ophthalmologic apparatus comprises an optical system that acquires data of an anterior segment of a subject's eye or a fundus of the subject's eye, an imaging unit that images the anterior segment or the fundus, a movement mechanism that moves the subject's eye and the optical system relative to each other, and a controller that controls die movement mechanism. The controller controls the movement mechanism so as to maintain a positional relationship between the subject's eye and the optical system based on an anterior segment image acquired by the imaging unit in an anterior segment mode for acquiring data of the anterior segment by the optical system, and controls the movement mechanism so as to maintain the positional relationship based on a fundus image acquired by the imaging unit in a fundus mode for acquiring data of the fundus by the optical system.
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公开(公告)号：US10849499B2
公开(公告)日：2020-12-01
申请号：US16115577
申请日：2018-08-29
Applicant: TOPCON CORPORATION
Inventor： Yusuke Ono
Abstract: An ophthalmologic apparatus comprises an optical system that includes an optical scanner, deflects light from a light source using the optical scanner, projects the light onto a subject's eye, and receives light based on returning light from the subject's eye, a movement mechanism that moves the subject's eye and the optical system relative to each other, an image acquisition unit that acquires an image of the subject's eye, an abnormality detector that detects abnormality based on a reference image and the image of the subject's eye, a scan controller that controls the optical scanner to re-perform a first scan or a second scan so as to project light from the light source onto a start position of the first scan, which is being performed for the subject's eye at an acquisition timing of the image of the subject's eye, or a start position of the second scan performed before the first scan, when the abnormality is detected by the abnormality detector, and a tracking controller that controls the movement mechanism based on the reference image and the image of the subject's eye, when the abnormality is not detected by the abnormality detector.
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Patent Agency Ranking
公开(公告)号：US11826102B2
公开(公告)日：2023-11-28
申请号：US15734239
申请日：2019-04-15
Applicant: Topcon Corporation
Inventor： Yusuke Ono
CPC classification number: A61B3/102 , A61B3/0025 , A61B3/117 , G06T7/0012 , G06T7/13 , G06T7/73 , G06V40/19 , G16H30/40 , G06T2207/10101 , G06T2207/20164 , G06T2207/30041 , G06T2207/30168
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：US11806076B2
公开(公告)日：2023-11-07
申请号：US17891140
申请日：2022-08-19
Applicant: Topcon Corporation
Inventor： Yusuke Ono , Hiroyuki Aoki
IPC: A61B3/00 , A61B3/10 , A61B3/12 , A61B3/14 , G06V10/25 , G06V10/75 , G06V10/80 , G06V10/143 , G06V10/147 , G06V40/19 , G06V40/18 , G06V40/14
CPC classification number: A61B3/0025 , A61B3/102 , A61B3/12 , A61B3/14 , G06V10/143 , G06V10/147 , G06V10/25 , G06V10/751 , G06V10/803 , G06V10/809 , G06V40/19 , G06V40/193 , G06V40/14
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：US11571123B2
公开(公告)日：2023-02-07
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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公开(公告)号：US11452445B2
公开(公告)日：2022-09-27
申请号：US16739137
申请日：2020-01-10
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：US20190059723A1
公开(公告)日：2019-02-28
申请号：US16115577
申请日：2018-08-29
Applicant: TOPCON CORPORATION
Inventor： Yusuke Ono
Abstract: An ophthalmologic apparatus comprises an optical system that includes an optical scanner, deflects light from a light source using the optical scanner, projects the light onto a subject's eye, and receives light based on returning light from the subject's eye, a movement mechanism that moves the subject's eye and the optical system relative to each other, an image acquisition unit that acquires an image of the subject's eye, an abnormality detector that detects abnormality based on a reference image and the image of the subject's eye, a scan controller that controls the optical scanner to re-perform a first scan or a second scan so as to project light from the light source onto a start position of the first scan, which is being performed for the subject's eye at an acquisition timing of the image of the subject's eye, or a start position of the second scan performed before the first scan, when the abnormality is detected by the abnormality detector, and a tracking controller that controls the movement mechanism based on the reference image and the image of the subject's eye, when the abnormality is not detected by the abnormality detector.
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