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    Integrated localization method and apparatus of high accuracy robust to route change
    6.
    发明授权
    Integrated localization method and apparatus of high accuracy robust to route change 有权

    公开(公告)号：US11422225B2

    公开(公告)日：2022-08-23

    申请号：US16477458

    申请日：2017-12-28

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Taikjin Lee ,  Chulki Kim ,  Yongsang Ryu ,  Beomju Shin

    IPC: G01S5/14 ,  H04W4/029 ,  G01S5/00 ,  G01S5/02 ,  G01S11/06 ,  G01S19/01 ,  H04W88/18 ,  G01C21/20

    Abstract: The present invention relates to integrated localization method and apparatus of high accuracy, and estimates a relative position of a moving node, based on motion sensing of the moving node, estimates an absolute position of the moving node, based on a change pattern of at least one signal strength received from at least one fixed node over a plurality of time points, calculates accuracy of the absolute position of the moving node that changes along a movement route of the moving node, and determines a current position of the moving node from at least one of the relative position and the absolute position estimated as such in accordance with the accuracy of the absolute position of the moving node. Accordingly, it is possible to accurately estimate a position of a moving node using a radio signal which not only accurately estimates the position of the moving node even in a change of wireless environment or various route changes but also has almost no change in signal strength over a wide region.

    Apparatus and method for measuring ganglion cells
    8.
    发明授权
    Apparatus and method for measuring ganglion cells 有权
    用于测量神经节细胞的装置和方法

    公开(公告)号：US08818492B2

    公开(公告)日：2014-08-26

    申请号：US13686291

    申请日：2012-11-27

    Applicant: Korea Institute of Science and Technology

    Inventor： Jae Hun Kim ,  Seok Lee ,  Hyuk Jae Lee ,  Taikjin Lee ,  Sun Ho Kim ,  Seok Hwan Kim ,  Jin Wook Jeoung ,  Ki Ho Park ,  Ju Yeong Oh ,  Deok Ha Woo ,  Chulki Kim

    IPC: A61B5/05 ,  A61B3/14

    CPC classification number: A61B3/145

    Abstract: An apparatus for measuring ganglion cells may include: a light generation unit configured to irradiate a first light signal polarized in a first direction and a second light signal polarized in a second direction perpendicular to the first direction to a subject; a reflected light processing unit configured to generate an amplification signal corresponding to an image of the subject using a first reflection signal, which is the first light signal reflected from the subject, and a second reflection signal, which is the second light signal reflected from the subject; and an image processing unit configured to measure ganglion cells in the subject using the amplification signal. The apparatus may be used to count the number of normal ganglion cells in the retina by measuring a phase difference of two lights polarized in different directions. The apparatus may also be used to monitor the progress of glaucoma.

    Abstract translation: 用于测量神经节细胞的装置可以包括：光产生单元，被配置为将与第一方向垂直的第二方向上的沿第一方向偏振的第一光信号和第二光信号偏振到对象; 反射光处理单元，被配置为使用作为从被摄体反射的第一光信号的第一反射信号和从第二反射信号反射的第二反射信号，生成与被摄体的图像相对应的放大信号， 学科; 以及图像处理单元，被配置为使用所述放大信号来测量所述对象中的神经节细胞。 该装置可以通过测量在不同方向上偏振的两个光的相位差来计数视网膜中正常神经节细胞的数量。 该装置还可用于监测青光眼的进展。

    Optical imaging apparatus using metamaterial and optical imaging method using metamaterial
    9.
    发明授权
    Optical imaging apparatus using metamaterial and optical imaging method using metamaterial 有权

    公开(公告)号：US11175186B2

    公开(公告)日：2021-11-16

    申请号：US16809275

    申请日：2020-03-04

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  Center for Advanced Meta-Materials

    Inventor： Minah Seo ,  Sang-Hun Lee ,  Chulki Kim ,  Jae Hun Kim ,  Taikjin Lee ,  Deok Ha Woo

    IPC: G01J5/08 ,  G02B1/00 ,  G01J5/00

    Abstract: One embodiment of the present invention provides an optical imaging apparatus using a metamaterial including a metamaterial array sensor which includes a plurality of unit cells made of a metamaterial and is positioned adjacent to an observation object, an imaging beam providing unit which provides an imaging beam toward the metamaterial array sensor, a control beam providing unit which controls a control beam provided to the unit cell to block the imaging beam incident on the unit cell, and an imaging beam measuring unit which measures a unit cell imaging beam transmission amount passing through the unit cell by measuring an imaging beam transmission amount of the metamaterial array sensor when the imaging beam passes through the unit cell and an imaging beam transmission amount of the metamaterial array sensor when the control beam is focused on the unit cell to block the imaging beam incident on the unit cell.

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