利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

10 records (took 0.023 seconds)

    METHOD FOR ELIMINATING ARTIFACT OF COMPUTED TOMOGRAPHY IMAGE
    1.
    发明申请
    METHOD FOR ELIMINATING ARTIFACT OF COMPUTED TOMOGRAPHY IMAGE 有权
    消除计算机图像图像的方法

    公开(公告)号：US20160048957A1

    公开(公告)日：2016-02-18

    申请号：US14823007

    申请日：2015-08-11

    Applicant: Korea University Research and Business Foundation

    Inventor： Dong-Joo Kim

    IPC: G06T7/00 ,  G06T11/60 ,  A61B6/00

    CPC classification number: G06T11/60 ,  A61B6/032 ,  A61B6/501 ,  A61B6/505 ,  A61B6/5205 ,  A61B6/5258 ,  G06T5/005 ,  G06T7/12 ,  G06T11/008 ,  G06T2207/10081 ,  G06T2207/30008 ,  G06T2207/30016 ,  G06T2211/40

    Abstract: A method for eliminating an artifact of a computed tomography image is provided. The method includes eliminating a machine artifact from a cross-sectional computed tomography scans of the brain; setting boundary points positioned on a horizontal axis and a vertical axis in the computed tomography image, from which the machine artifact has been eliminated; resetting a boundary point positioned at a boundary between the skull of the brain and the brain tissue based on the boundary points; detecting a position of a fracture of the brain in the computed tomography image, in which the boundary point has been reset, and overlaying a fracture region with a skull pixel; and eliminating an artifact from the computed tomography image, which has been overlaid with the skull pixel.

    Abstract translation: 提供了一种消除计算机断层摄影图像伪像的方法。 该方法包括从脑的横断面计算机断层扫描中消除机器伪影; 设置位于计算机断层摄影图像中的水平轴和垂直轴上的边界点，从其中消除了机器人造物; 基于边界点重置位于脑颅骨与脑组织之间边界的边界点; 检测计算机断层摄影图像中的骨折位置，其中边界点已被复位，并且覆盖具有颅骨像素的骨折区域; 并从计算机断层摄影图像中消除了与颅骨像素重叠的伪像。

    DEVICE FOR EXTRACTION OF PEAKS FROM CONTINUOUS INTRACRANIAL PRESSURE WAVEFORM AND DETECTION METHOD FOR THE SAME
    3.
    发明申请
    DEVICE FOR EXTRACTION OF PEAKS FROM CONTINUOUS INTRACRANIAL PRESSURE WAVEFORM AND DETECTION METHOD FOR THE SAME 审中-公开

    公开(公告)号：US20180103862A1

    公开(公告)日：2018-04-19

    申请号：US15567858

    申请日：2016-04-20

    Applicant: Korea University Research and Business Foundation

    Inventor： Dong-Joo Kim

    IPC: A61B5/03 ,  A61B5/0205 ,  A61B5/00

    CPC classification number: A61B5/031 ,  A61B5/0205 ,  A61B5/021 ,  A61B5/024 ,  A61B5/4842 ,  A61B5/7278 ,  A61B5/7425 ,  A61B5/743 ,  G06K9/46

    Abstract: The present invention relates to a device and a method for detecting a peak of an intracranial pressure (ICP) waveform using a morphological feature of an arterial blood pressure waveform. A peak extracting method of an ICP waveform using a morphological feature of an arterial blood pressure waveform according to an aspect of the present invention includes: extracting a pulse onset from a continuous ICP waveform based on systolic peak from arterial blood pressure waveform; dividing individual ICP waveforms in the continuous ICP waveform based on the pulse onset; deriving a derivative value from each of the ICP waveforms to extract a peak, a trough, and a flat; calculating latencies from the pulse onset extracted in each of the ICP waveforms to the extracted peaks to cluster peaks with a similar time interval and generate a peak cluster; searching a notch from each of the ICP waveforms based on the latency of a dicrotic notch of the arterial blood pressure waveform; and extracting P1, P2, and P3 peaks from each of the ICP waveforms by referring to the searched notch of the ICP.

    Apparatus and method for detecting artifact of blood pressure signal, and computer readable recording medium storing the method
    4.
    发明授权
    Apparatus and method for detecting artifact of blood pressure signal, and computer readable recording medium storing the method 有权

    公开(公告)号：US11224350B2

    公开(公告)日：2022-01-18

    申请号：US16122219

    申请日：2018-09-05

    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

    Inventor： Dong-Joo Kim

    IPC: A61B5/022 ,  A61B5/021 ,  A61B5/00 ,  A61B5/02 ,  A61B5/352

    Abstract: A method for detecting an artifact of a blood pressure signal includes measuring consecutive signals of blood pressure in real time, dividing the consecutive signals into a plurality of unit waveforms by searching systolic starting points and peak points from the measured signals, determining two outputs by applying N consecutive unit waveforms among the plurality of unit waveforms as an input to a deep belief network (DBN), and determining whether the signal is an artifact or a normal signal by using the two determined outputs. According to the present disclosure, it is possible to minimize various false alarms of bio-signal streams which are measured in real time by automatically eliminating ABP artifacts using a deep belief network (DBN) which is one of deep neural network (DNN) models capable of learning causes and shapes of various types of artifacts together.

    Device for extraction of peaks from continuous intracranial pressure waveform and detection method for the same
    5.
    发明授权
    Device for extraction of peaks from continuous intracranial pressure waveform and detection method for the same 有权

    公开(公告)号：US10799130B2

    公开(公告)日：2020-10-13

    申请号：US15567858

    申请日：2016-04-20

    Applicant: Korea University Research and Business Foundation

    Inventor： Dong-Joo Kim

    IPC: A61B5/03 ,  G06K9/46 ,  A61B5/021 ,  A61B5/024 ,  A61B5/0205 ,  A61B5/00

    Abstract: The present invention relates to a device and a method for detecting a peak of an intracranial pressure (ICP) waveform using a morphological feature of an arterial blood pressure waveform. A peak extracting method of an ICP waveform using a morphological feature of an arterial blood pressure waveform according to an aspect of the present invention includes: extracting a pulse onset from a continuous ICP waveform based on systolic peak from arterial blood pressure waveform; dividing individual ICP waveforms in the continuous ICP waveform based on the pulse onset; deriving a derivative value from each of the ICP waveforms to extract a peak, a trough, and a flat; calculating latencies from the pulse onset extracted in each of the ICP waveforms to the extracted peaks to cluster peaks with a similar time interval and generate a peak cluster; searching a notch from each of the ICP waveforms based on the latency of a dicrotic notch of the arterial blood pressure waveform; and extracting P1, P2, and P3 peaks from each of the ICP waveforms by referring to the searched notch of the ICP.

    Device for extraction of peaks from continuous intracranial pressure waveform and detection method for the same
    8.
    发明授权
    Device for extraction of peaks from continuous intracranial pressure waveform and detection method for the same 有权

    公开(公告)号：US11690526B2

    公开(公告)日：2023-07-04

    申请号：US16938243

    申请日：2020-07-24

    Applicant: Korea University Research and Business Foundation

    Inventor： Dong-Joo Kim

    IPC: A61B5/03 ,  A61B5/021 ,  A61B5/024 ,  A61B5/0205 ,  A61B5/00

    CPC classification number: A61B5/031 ,  A61B5/021 ,  A61B5/024 ,  A61B5/0205 ,  A61B5/743 ,  A61B5/7425 ,  A61B5/4842 ,  A61B5/7278

    Abstract: The present invention relates to a device and a method for detecting a peak of an intracranial pressure (ICP) waveform using a morphological feature of an arterial blood pressure waveform. A peak extracting method of an ICP waveform using a morphological feature of an arterial blood pressure waveform according to an aspect of the present invention includes: extracting a pulse onset from a continuous ICP waveform based on systolic peak from arterial blood pressure waveform; dividing individual ICP waveforms in the continuous ICP waveform based on the pulse onset; deriving a derivative value from each of the ICP waveforms to extract a peak, a trough, and a flat; calculating latencies from the pulse onset extracted in each of the ICP waveforms to the extracted peaks to cluster peaks with a similar time interval and generate a peak cluster; searching a notch from each of the ICP waveforms based on the latency of a dicrotic notch of the arterial blood pressure waveform; and extracting P1, P2, and P3 peaks from each of the ICP waveforms by referring to the searched notch of the ICP.

    Device of detection for morphological feature extraction from arterial blood pressure waveform and detection method for the same
    9.
    发明授权
    Device of detection for morphological feature extraction from arterial blood pressure waveform and detection method for the same 有权

    公开(公告)号：US10856817B2

    公开(公告)日：2020-12-08

    申请号：US15564778

    申请日：2016-04-07

    Applicant: Korea University Research and Business Foundation

    Inventor： Dong-Joo Kim

    IPC: A61B5/021 ,  A61B5/00

    Abstract: The present invention relates to a device and a method for detecting a feature of an arterial blood pressure (ABP) waveform. The feature detecting method of an ABP waveform according to an exemplary embodiment of the present invention includes: searching a peak and a trough; detecting a systolic peak based on a time interval between a peak and a neighboring peak and an average pressure value; detecting a pulse onset with respect to a trough directly before the systolic peak; extracting a candidate of a dicrotic notch based on a magnitude of the systolic peak and a measurement time; detecting a point having a lowest pressure value among candidates of the dicrotic notch as a dicrotic notch and detecting a dicrotic peak based on the dicrotic notch; and classifying the detected dicrotic notches into a normal notch and a transient notch.

Patent Agency Ranking