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    OCT SIGNAL PROCESSING DEVICE AND OCT SIGNAL PROCESSING PROGRAM
    1.
    发明申请
    OCT SIGNAL PROCESSING DEVICE AND OCT SIGNAL PROCESSING PROGRAM 审中-公开

    公开(公告)号：US20190380588A1

    公开(公告)日：2019-12-19

    申请号：US16068452

    申请日：2017-01-05

    Applicant: NIDEK CO., LTD.

    Inventor： Naoki TAKENO ,  Masaaki HANEBUCHI ,  Yasuhiro FURUUCHI ,  Hajime NAMIKI

    IPC: A61B5/00 ,  A61B3/10 ,  A61B3/12 ,  G06T7/20 ,  G06F17/18

    Abstract: An OCT signal processing device has an acquisition unit for acquiring three or more OCT signals being temporally different from each other with respect to the same position on a subject, from an OCT device that detects an OCT signal based on reflection light of measurement light applied to a subject and reference light corresponding to the measurement light, and a calculation unit for calculating motion contrast based on a plurality of OCT signals. The calculation unit selects two or more sets of OCT signals having different time interval between the OCT signals among sets obtained by extracting a plurality of OCT signals out of the three or more OCT signals, and calculates motion contrast for each of the selected two or more sets.

    OPTICAL COHERENCE TOMOGRAPHY DEVICE
    2.
    发明申请
    OPTICAL COHERENCE TOMOGRAPHY DEVICE 有权
    光学相干手术设备

    公开(公告)号：US20150168127A1

    公开(公告)日：2015-06-18

    申请号：US14566778

    申请日：2014-12-11

    Applicant: NIDEK CO., LTD.

    Inventor： Naoki TAKENO ,  Masaaki HANEBUCHI ,  Yasuhiro FURUUCHI ,  Hajime NAMIKI

    IPC: G01B9/02

    CPC classification number: G01B9/02091 ,  A61B3/0025 ,  A61B3/102 ,  A61B5/0066 ,  A61B5/7203 ,  G01B9/0201 ,  G01B9/02045 ,  G01B9/02087 ,  G06T2207/10101

    Abstract: There is provided an optical coherence tomography device provided with: an OCT optical system configured to output OCT signal; and an analysis processing unit configured to process the OCT signal and generate motion contrast data of the specimen. The analysis processing unit is provided with: a first image data generation unit configured to process multiple OCT signals to generate first image data representing phase difference information of the multiple OCT signals, and a second image data generation unit configured to process the OCT signal to generate second image data representing amplitude information of the OCT signal. The analysis processing unit generates the motion contrast data based on the phase difference information in the first image data and the amplitude information in the second image data.

    Abstract translation: 提供了一种光学相干断层摄影装置，其具有：配置成输出OCT信号的OCT光学系统; 以及分析处理单元，被配置为处理所述OCT信号并生成所述样本的运动对比度数据。 所述分析处理单元设置有：第一图像数据生成单元，被配置为处理多个OCT信号以生成表示所述多个OCT信号的相位差信息的第一图像数据;以及第二图像数据生成单元，被配置为处理所述OCT信号以产生 表示OCT信号的幅度信息的第二图像数据。 分析处理单元基于第一图像数据中的相位差信息和第二图像数据中的幅度信息生成运动对比度数据。

    OPHTHALMOLOGIC APPARATUS
    4.
    发明申请
    OPHTHALMOLOGIC APPARATUS 有权
    眼科手术

    公开(公告)号：US20160038023A1

    公开(公告)日：2016-02-11

    申请号：US14813846

    申请日：2015-07-30

    Applicant: NIDEK CO., LTD.

    Inventor： Masakazu ENDO ,  Masaaki HANEBUCHI ,  Yasuhiro FURUUCHI

    IPC: A61B3/10 ,  A61B3/00 ,  G01B9/02

    CPC classification number: A61B3/1005 ,  A61B3/00 ,  A61B3/0025 ,  A61B3/10 ,  A61B3/102 ,  G01B9/02051 ,  G01B9/02083 ,  G01B9/02091

    Abstract: The present invention relates to an ophthalmologic apparatus for acquiring depth information of an eye including a light source; a measurement optical path guiding measurement light; a reference optical path generating reference light; and a detector generating a detection signal containing an interference signal of the measurement light via the measurement optical path and the reference light coming from the reference optical path; an actuator driving at least part of the interference optical system to vary an optical path length difference between the measurement optical path and the reference optical path; a standard optical system including optical members disposed corresponding to the optical path length differences in one of the measurement optical path and the reference optical path. Optical members guide part of the measurement light or the reference light to the detector.

    Abstract translation: 本发明涉及一种用于获取包括光源的眼睛的深度信息的眼科装置; 导向测量光的测量光路; 参考光路产生参考光; 以及检测器，其经由所述测量光路和来自所述参考光路的参考光产生包含所述测量光的干扰信号的检测信号; 致动器驱动所述干涉光学系统的至少一部分，以改变所述测量光路和所述参考光路之间的光程长度差; 标准光学系统，包括与测量光路和参考光路之一中的光路长度差对应设置的光学部件。 光学构件将部分测量光或参考光引导到检测器。

    OPHTHALMIC SYSTEM
    5.
    发明公开
    OPHTHALMIC SYSTEM 审中-公开

    公开(公告)号：US20230233080A1

    公开(公告)日：2023-07-27

    申请号：US18192078

    申请日：2023-03-29

    Applicant: NIDEK CO., LTD.

    Inventor： Naoki TAKENO ,  Yasuhiro FURUUCHI ,  Shinya MITO ,  Kouji HAMAGUCHI

    IPC: A61B3/18 ,  A61B3/00

    CPC classification number: A61B3/185 ,  A61B3/0025 ,  A61B3/0075

    Abstract: An ophthalmic system for examining a subject eye of an examinee includes a plurality of examination units, a robot mechanism, and a controller. The plurality of examination units have housings different from each other, perform examinations different from each other, and include at least a first examination unit and a second examination unit. The robot mechanism has a holding unit that holds and releases either the first examination unit or the second examination unit, and a moving unit that is connected to the holding unit and moves three-dimensionally. A controller controls driving of the robot mechanism to adjust a relative positional relationship between the subject eye and the first examination unit or the second examination unit held by the holding unit. The first examination unit or the second examination unit is replaced to be held by the holding unit for performing a different examination on the subject eye.

    OPTICAL COHERENCE TOMOGRAPHY DEVICE
    8.
    发明申请
    OPTICAL COHERENCE TOMOGRAPHY DEVICE 有权
    光学相干手术设备

    公开(公告)号：US20150094978A1

    公开(公告)日：2015-04-02

    申请号：US14499735

    申请日：2014-09-29

    Applicant: NIDEK CO., LTD.

    Inventor： Masaaki HANEBUCHI ,  Yasuhiro FURUUCHI

    IPC: G01B9/02 ,  A61B5/00 ,  A61B3/10

    CPC classification number: G01B9/02075 ,  A61B3/102 ,  A61B5/0066 ,  G01B9/02004 ,  G01B9/02069 ,  G01B9/02091 ,  G01B2290/25 ,  G01B2290/45 ,  G01B2290/70

    Abstract: An optical coherence tomography device includes an SS-OCT optical system which includes a wavelength swept optical source which sweeps an emission wavelength, an optical splitter which splits an interference signal light caused by interference between a measurement light and a reference light into a first interference signal light and a second interference signal light having a phase difference from the first interference signal light, a balance detector which includes a first detector configured to detect the first interference signal light and a second detector configured to detect the second interference signal light, and which processes detection signals from the first and second detectors to perform balance detection, and an optical member which is disposed between the optical splitter and one of the first detector and the second detector to generate a fixed pattern noise by one of the first interference signal light and the second interference signal light.

    Abstract translation: 光学相干断层摄影装置包括：SS-OCT光学系统，其包括扫描发射波长的波长扫描光源;将由测量光和参考光之间的干扰引起的干扰信号光分解成第一干涉信号的光分路器; 光和具有与第一干涉信号光的相位差的第二干涉信号光;平衡检测器，包括被配置为检测第一干涉信号光的第一检测器和被配置为检测第二干涉信号光的第二检测器，以及哪个处理 来自第一和第二检测器的检测信号以执行平衡检测;以及光学构件，其设置在光分路器与第一检测器和第二检测器中的一个之间，以通过第一干涉信号光和第二检测器中的一个产生固定图案噪声 第二干扰信号灯。

    METHOD FOR REDUCING NOISE IN TOMOGRAPHIC IMAGE AND RECORDING MEDIUM HAVING NOISE REDUCING PROGRAM STORED THEREIN
    10.
    发明申请
    METHOD FOR REDUCING NOISE IN TOMOGRAPHIC IMAGE AND RECORDING MEDIUM HAVING NOISE REDUCING PROGRAM STORED THEREIN 有权
    用于减少图像中的噪声的方法和具有减少噪声的程序存储的记录介质的方法

    公开(公告)号：US20130208968A1

    公开(公告)日：2013-08-15

    申请号：US13754565

    申请日：2013-01-30

    Applicant: NIDEK CO., LTD.

    Inventor： Masaaki HANEBUCHI ,  Norimasa SATAKE ,  Yasuhiro FURUUCHI ,  Hajime NAMIKI

    IPC: G06T5/00

    CPC classification number: G06T5/002 ,  A61B3/102 ,  A61B3/1225 ,  A61B5/0066 ,  A61B5/7203 ,  G01B9/02004 ,  G01B9/0207 ,  G01B9/02091 ,  G06T5/10 ,  G06T2207/10101

    Abstract: A method for reducing noise in a tomographic image, includes: acquiring phase information of a noise component signal, the signal being provided as a signal corresponding to a noise component of the tomographic image and included in a spectrum interference signal output from a detector of a swept source optical coherence tomography device; acquiring a tomographic image in response to a spectrum interference signal with a corrected phase deviation based on the acquired phase information; and reducing the noise component of this tomographic image.

    Abstract translation: 一种用于降低断层图像中的噪声的方法，包括：获取噪声分量信号的相位信息，所述信号被提供为与断层图像的噪声分量相对应的信号，并被包括在从检测器输出的频谱干扰信号中 扫描光学相干断层摄影装置; 基于所获取的相位信息，响应于具有校正的相位偏差的频谱干扰信号来获取断层图像; 并降低该断层图像的噪声分量。

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