-
公开(公告)号：US09072458B2
公开(公告)日：2015-07-07
申请号：US13782523
申请日：2013-03-01
Applicant: NIDEK CO., LTD.
Inventor： Yuji Murase
CPC classification number: A61B3/102 , A61B3/0041 , A61B3/0091
Abstract: An ophthalmologic photographing apparatus includes: a photographing optical system, including a scanning unit for scanning an examinee's eye with measurement light, for obtaining a tomographic image of the examinee's eye; an observing optical system, including a light-receiving device for receiving reflected light from the examinee's eye, for obtaining a front image of the examinee's eye based on a light receiving signal from the light-receiving device; a condition setting unit for setting conditions for capturing a tomographic image; and a tracking controller for performing tracking that controls the scanning unit in a manner of scanning a predetermined photographing portion of the examinee's eye based on a front image acquired by the observing optical system as well as performing tracking related to substantially the same photographing portion even in a case where the photographing condition is changed by the condition setting unit.
Abstract translation: 一种眼科摄影装置，包括：拍摄光学系统，包括用于利用测量光扫描受检者的眼睛的扫描单元，用于获得被检眼的断层图像; 观察光学系统，包括用于接收来自受检者的眼睛的反射光的光接收装置，用于基于来自光接收装置的光接收信号获得被检眼的前方图像; 条件设置单元，用于设置用于捕获断层图像的条件; 以及跟踪控制器，用于执行跟踪，其以基于由观察光学系统获取的前视图扫描受检者的预定拍摄部分的方式控制扫描单元，以及执行与基本上相同的拍摄部分的跟踪，即使在 通过条件设定单元改变摄影条件的情况。
-
公开(公告)号：US09259151B2
公开(公告)日：2016-02-16
申请号：US14161733
申请日：2014-01-23
Applicant: NIDEK CO., LTD.
Inventor： Yuji Murase
CPC classification number: A61B3/102 , A61B3/1025 , A61B3/1233
Abstract: There is provided an ophthalmic imaging apparatus including an optical coherence tomography (OCT) optical system for acquiring a tomographic image of a subject eye, an observation optical system configured to acquire a front image of the subject eye. The apparatus functions as an image generation unit which repeatedly generates the tomographic image based on an output signal from the OCT optical system, and repeatedly generates the front image based on an output signal from the observation optical system, a determination unit which detects a positional deviation between a reference front image and each of front images generated by the image generation unit, and determines consecutiveness of the front images whose positional deviation satisfies a permissible range, and a selection process unit which selects one of multiple tomographic images generated by the image generation unit, based on a determination result by the determination unit.
Abstract translation: 提供一种眼科成像装置，其包括用于获取被检眼的断层图像的光学相干断层摄影（OCT）光学系统，被配置为获取被检眼的前方图像的观察光学系统。 该装置用作基于来自OCT光学系统的输出信号重复产生断层图像的图像生成单元，并且基于来自观察光学系统的输出信号重复生成前方图像，确定单元检测位置偏差 并且确定位置偏差满足容许范围的前方图像的连续性，以及选择处理单元，其选择由图像生成单元生成的多个断层图像之一 ，基于确定单元的确定结果。
-
公开(公告)号：US10070780B2
公开(公告)日：2018-09-11
申请号：US15183288
申请日：2016-06-15
Applicant: NIDEK CO., LTD.
Inventor： Yuji Murase , Yukihiro Higuchi , Norimasa Satake
CPC classification number: A61B3/0033 , A61B3/0025 , A61B3/0041 , A61B3/005 , A61B3/102 , A61B3/1225 , A61B3/145
Abstract: An ophthalmologic photographing apparatus includes: a photographing optical system that includes a scanning unit for scanning an examinee's eye with measurement light to obtain a tomographic image of the examinee's eye; an observing optical system that includes a light-receiving device for receiving reflected light from the examinee's eye to obtain a moving image of a front image of the examinee's eye based on a light-receiving signal from the light-receiving device; a display controller for displaying the front image acquired by the observing optical system in a still state on a monitor as well as enabling setting of a capturing position of the tomographic image, the setting using the front image; and a drive controller for controlling the scanning unit to acquire the tomographic image in accordance with the capturing position.
-
4.发明授权公开(公告)号：US08985772B2
公开(公告)日：2015-03-24
申请号：US14058438
申请日：2013-10-21
Applicant: Nidek Co., Ltd.
Inventor： Yuji Murase
CPC classification number: A61B3/102 , A61B3/0058 , A61B3/14
Abstract: An ophthalmologic photographing apparatus includes: an optical coherence system for obtaining a tomographic image of an examinee's eye, having an optical scanner for scanning the eye with measurement light and a detector for detecting an interference signal of the light and reference light; an observing optical system for acquiring a front image of the eye; a scan controller for controlling the optical scanner to scan with the light different transverse positions set on the image, and acquire first interference signals at the positions; a display controller for displaying on a monitor an image created in response to the first interference signal; and an image recapture setting unit for setting a rephotographing transverse position in response to an operation signal from an operating unit for the image on the monitor. The scan controller scans the eye with the light at the rephotographing transverse position, and acquires a second interference signal.
Abstract translation: 一种眼科摄影装置，包括：光学相干系统，用于获得受检者的眼睛的断层图像，具有用于用测量光扫描眼睛的光学扫描器和用于检测光和参考光的干涉信号的检测器; 用于获取眼睛的正面图像的观察光学系统; 扫描控制器，用于控制光学扫描器用设置在图像上的光不同横向位置进行扫描，并获取位置处的第一干涉信号; 显示控制器，用于在监视器上显示响应于所述第一干扰信号而创建的图像; 以及图像再捕获设置单元，用于响应于来自用于监视器上的图像的操作单元的操作信号来设置重新拍摄横向位置。 扫描控制器在照相横向位置用光扫描眼睛，并获得第二干涉信号。
-
公开(公告)号：US11571122B2
公开(公告)日：2023-02-07
申请号：US16585117
申请日：2019-09-27
Applicant: NIDEK CO., LTD.
Inventor： Yuji Murase , Naoto Honda
Abstract: An image processor performs a histogram acquisition step of acquiring a histogram representing a distribution of gradation values of pixels in a fundus color image captured by irradiating a fundus with a plurality of beams of single-color light having different wavelengths, the histogram being acquired for each channel corresponding to each beam of single-color light, a histogram correction step of acquiring a corrected histogram by correcting the histogram of each channel acquired in the histogram acquisition step, of which a target pattern is set for each channel in advance, so as to fit to the corresponding target pattern, and a color tone corrected image generation step of generating a color tone corrected image, in which a distribution of gradation values for each channel is represented by the corrected histogram, based on the corrected histogram of each channel.
-
Patent Agency Ranking
公开(公告)号：US11071452B2
公开(公告)日：2021-07-27
申请号：US14753927
申请日：2015-06-29
Applicant: NIDEK CO., LTD.
Inventor： Norimasa Satake , Yukihiro Higuchi , Yuji Murase , Yasuhiro Furuuchi , Hajime Namiki , Naoki Isogai , Masaaki Hanebuchi , Naoki Takeno
Abstract: The present disclosure relates to an optical coherence tomography (OCT) including: an OCT device, an OCT calculation method, and an OCT calculation program, enabling correlation between images to be easily performed; more specifically it relates to a case where a functional OCT image such as a motion contrast is acquired by using the OCT; acquiring the functional OCT image through a calculation process of an OCT signal is a time-consuming process, for this reason, a long time elapses until the point that a functional OCT image can be observed after OCT imaging is completed, and thus this causes stress to a subject and an examiner; the present disclosure provides an OCT device, an OCT calculation method, and an OCT calculation program, enabling a functional OCT image to be rapidly acquired and enables an examiner to easily perform diagnosis.
-
公开(公告)号：US09795292B2
公开(公告)日：2017-10-24
申请号：US13780637
申请日：2013-02-28
Applicant: NIDEK CO., LTD.
Inventor： Yuji Murase
CPC classification number: A61B3/113 , A61B3/102 , F04C2270/041 , G01B9/02076 , G01B9/02091 , G01B2290/65
Abstract: A method for capturing a tomographic image of an eye includes: obtaining a plurality of tomographic images of an examinee's eye by an optical scanning; obtaining a displacement distribution that is a distribution of a displacement for each A-scan among the plurality of tomographic images; and correcting a displacement among the tomographic images based on the displacement distribution.
-
公开(公告)号：US11508062B2
公开(公告)日：2022-11-22
申请号：US16830936
申请日：2020-03-26
Applicant: NIDEK CO., LTD.
Inventor： Ryosuke Shiba , Yoshiki Kumagai , Naoto Honda , Kenshiro Fujiu , Yuji Murase , Shohei Ito
Abstract: An ophthalmological image processing apparatus acquires a plurality of images of a subject eye photographed in a scanning-type imaging optical system, sets any one of the plurality of images as a template, sets corresponding points or corresponding regions between an image of the subject eye and the template at a plurality of positions of each of the image of the subject eye and the template, calculates a movement amount of each of the corresponding points or each of the corresponding regions, and corrects a distortion of the image of the subject eye with respect to the template based on the movement amount of each of the corresponding points or each of the corresponding regions.
-
公开(公告)号：US10238281B2
公开(公告)日：2019-03-26
申请号：US15422866
申请日：2017-02-02
Applicant: NIDEK CO., LTD.
Inventor： Naoki Isogai , Hideki Aono , Yukihiro Higuchi , Yuji Murase , Norimasa Satake , Keiji Murata
Abstract: An optical coherence tomography device includes an OCT optical system that irradiates a tissue of the subject's eye with measurement light from a light source, and detects interference between reference light and the measurement light reflected from the tissue by using a detector, and a processor, in which the processor performs a generation process of acquiring A-scan data based on a signal output from the detector in a cycle of 300 kilohertz or more and generating three-dimensional OCT data at any time based on the acquired A-scan data, and performs an analysis process on each piece of the three-dimensional OCT data generated at any time through the generation process, so as to output a real-time analysis result of the three-dimensional OCT data which is generated at any time.
-
10.发明授权Ophthalmic photographing apparatus and storage medium storing ophthalmic photographing program 有权眼科摄影装置和存储眼科摄影程序的存储介质公开(公告)号：US09220406B2
公开(公告)日：2015-12-29
申请号：US14161739
申请日：2014-01-23
Applicant: NIDEK CO., LTD.
Inventor： Yuji Murase , Mitsuo Yamamoto
CPC classification number: A61B3/102 , A61B3/0041 , A61B3/1025 , A61B3/14
Abstract: An ophthalmic photographing apparatus includes: an interference optical system configured to acquire a tomographic image of an eye; a processor; and memory storing computer readable instructions, when executed by the processor, causing the ophthalmic photographing apparatus to: control the interference optical system to acquire multiple tomographic images, and store the multiple tomographic images in a storage unit; acquire a composite image based on the multiple tomographic images stored in the storage unit; start a photographing operation for acquiring the multiple tomographic images based on the photographing position; acquire the composite image from the multiple tomographic images which are acquired by the interference optical system and stored in the storage unit until a first operation signal is received during the photographing operation; and transfer a process to a subsequent photographing operation when a second operation signal is received from the operation unit.
Abstract translation: 一种眼科摄影装置，包括：干涉光学系统，被配置为获取眼睛的断层图像; 处理器 以及存储器，存储计算机可读指令，当由所述处理器执行时，使得所述眼科摄影装置：控制所述干涉光学系统以获取多个断层图像，并将所述多个断层图像存储在存储单元中; 基于存储在存储单元中的多个断层图像来获取合成图像; 开始基于拍摄位置获取多个断层图像的拍摄操作; 从由干涉光学系统获取并存储在存储单元中的多个断层图像获取合成图像，直到在拍摄操作期间接收到第一操作信号; 并且当从所述操作单元接收到第二操作信号时，将处理传送到随后的拍摄操作。
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.016 seconds)
