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公开(公告)号：KR101287098B1
公开(公告)日：2013-07-16
申请号：KR1020110040172
申请日：2011-04-28
Applicant: 서강대학교산학협력단
IPC: A61B8/00
CPC classification number: G06T5/007 , G01S7/52026 , G01S7/52038 , G01S7/52046 , G06T5/10 , G06T2207/10132 , G06T2207/20056 , G06T2207/30004
Abstract: 본 발명은 주파수 영상 합성 방법에 관한 것으로서, 수신 신호의 각 대역별 중심 주파수를 추정하고, 추정된 각 대역별 중심 주파수를 이용하여 수신 신호를 각 대역별로 분리한 다음, 대역별로 수신 신호를 분리한 결과를 이용하여 대역별로 에너지를 추정하고, 추정된 에너지로부터 각 대역별 가중치 팩터를 결정하며, 결정된 각 대역별 가중치 팩터를 대역별로 수신 신호를 분리한 결과에 적용하여 각 대역별 주파수 영상을 합성하는 것을 특징으로 하며, 초음파 영상의 대조도를 높여 개선된 초음파 영상을 제공할 수 있다.
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公开(公告)号：KR1020130039198A
公开(公告)日：2013-04-19
申请号：KR1020110103707
申请日：2011-10-11
Applicant: 서강대학교산학협력단
IPC: A61B8/14
Abstract: PURPOSE: A method and apparatus for generating a photoacoustic image for detecting a calcification tissue are provided to supply accurate calcification tissue information to a user by detecting a microscale calcification phenomenon in breast and thyroid gland tissues. CONSTITUTION: A laser applying unit(100) applies a laser to an object. A photoacoustic signal receiving unit(105) receives a photoacoustic signal generated after the laser is applied to the object. A calcification tissue determining unit(110) determines whether a tissue is a calcification tissue or a peripheral tissue by comparing the size of the photoacoustic signal. A photoacoustic image postprocessing unit(120) emphasizes a calcification tissue image and removes a peripheral tissue image. An ultrasonic image generating unit(130) generates an ultrasonic image by using the photoacoustic signal received from the photoacoustic signal receiving unit. [Reference numerals] (100) Laser applying unit; (105) Photoacoustic signal receiving unit; (110) Calcification tissue determining unit; (120) Photoacoustic image postprocessing unit; (130) Ultrasonic image generating unit; (140) Image output unit; (AA) Object;
Abstract translation: 目的：提供一种用于产生用于检测钙化组织的光声图像的方法和装置，用于通过检测乳腺和甲状腺组织中的微量钙化现象向使用者提供精确的钙化组织信息。 构成：激光施加单元（100）将激光施加到物体上。 光声信号接收单元（105）接收在激光被施加到物体之后产生的光声信号。 钙化组织确定单元（110）通过比较光声信号的大小来确定组织是钙化组织还是外周组织。 光声图像后处理单元（120）强调钙化组织图像并去除外周组织图像。 超声波图像生成部（130）通过使用从光声信号接收部接收的光声信号来生成超声波图像。 （附图标记）（100）激光施加单元; （105）光声信号接收单元; （110）钙化组织确定单元; （120）光声图像后处理单元; （130）超声波图像生成单元; （140）图像输出单元; （AA）对象;
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公开(公告)号：KR1020130034987A
公开(公告)日：2013-04-08
申请号：KR1020110099172
申请日：2011-09-29
Applicant: 서강대학교산학협력단
Abstract: PURPOSE: An ultrasound imaging system and an ultrasound image generation method are provided to understand a location in which HIFU energy is focused in advance using ultrasound energy in the range not affecting a human body. CONSTITUTION: An ultrasound imaging system for obtaining a HIFU focus image includes a HIFU transmission beam former(100) transmitting, focusing and delaying a HIFU transmission signal having a frequency simultaneously in the ultrasound image converter frequency response range and the HIFU converter frequency response range; a HIFU converter(110) transmitting the transmitted, focused and delayed HIFU transmission signal to a target object; an ultrasound image converter(120) receiving the ultrasound signal received from the target object; an image reception beam former(130) generating synthetic beam by receiving, focusing and delaying the received ultrasound signal and an ultrasound image generation unit(140) generating an ultrasound image from the generated synthetic beam. [Reference numerals] (100) HIFU transmission beam former; (110) HIFU converter; (120) Ultrasound image converter; (130) Image reception beam former; (140) Ultrasound image generation unit; (150) Display unit; (160) Focus control unit; (170) Input unit; (AA) Target object;
Abstract translation: 目的：提供超声成像系统和超声波图像生成方法，以便在不影响人体的范围内使用超声波能量来预先知道HIFU能量聚焦的位置。 构成：用于获得HIFU对焦图像的超声波成像系统包括HIFU发送波束成形器（100），其在超声波图像转换器频率响应范围和HIFU转换器频率响应范围内同时发送，聚焦和延迟具有频率的HIFU发送信号; HIFU转换器（110）将发送的，聚焦的和延迟的HIFU发送信号发送到目标对象; 接收从目标物体接收的超声信号的超声波图像转换器（120） 通过接收，聚焦和延迟所接收的超声信号产生合成束的图像接收波束形成器（130）和从所生成的合成波束产生超声波图像的超声波图像生成单元（140）。 （附图标记）（100）HIFU透射束形成器; （110）HIFU转换器; （120）超声图像转换器; （130）图像接收波束形成器; （140）超声图像生成单元; （150）显示单元; （160）对焦控制单元; （170）输入单元; （AA）目标物体;
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公开(公告)号：KR1020120096736A
公开(公告)日：2012-08-31
申请号：KR1020110016006
申请日：2011-02-23
Applicant: 서강대학교산학협력단
Abstract: PURPOSE: A method and apparatus for focusing an ultrasonic beam are provided to reduce delay time data to be downloaded by decreasing an operation quality to calculate delay time. CONSTITUTION: An ultrasonic transducer(130) receives an ultrasonic signal reflected from an object. A data buffer unit(160) stores a plurality of channel data generated from the ultrasonic signal. A delay time operating unit(170) operates delay time applied to the plurality of the channel data. A beam former(180) generates a synthetic beam by synthesizing the plurality of the channel data. A channel aligning unit(140) aligns the channel data.
Abstract translation: 目的：提供一种用于聚焦超声波束的方法和装置，通过降低操作质量来计算延迟时间来减少要下载的延迟时间数据。 构成：超声波换能器（130）接收从物体反射的超声波信号。 数据缓冲器单元（160）存储从超声波信号生成的多个通道数据。 延迟时间操作单元（170）操作施加到多个通道数据的延迟时间。 波束形成器（180）通过合成多个通道数据来生成合成波束。 信道对齐单元（140）对准信道数据。
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公开(公告)号：KR1020120086598A
公开(公告)日：2012-08-03
申请号：KR1020110007933
申请日：2011-01-26
Applicant: 서강대학교산학협력단
IPC: A61B8/00
Abstract: PURPOSE: An apparatus and a method for adaptive dynamic quadrature demodulation are provided to reduce the energy loss of a signal during a quadrature demodulation process by accurately converting a biased signal component into a base band signal. CONSTITUTION: A frequency estimation unit(110) estimates changes in the center frequency of a received ultrasound signal according to the propagation depth. A dynamic quadrature demodulation unit(120) implements dynamic quadrature demodulation using the estimated changes. A dynamic filter(130) determines the specification of a filter from the center frequency estimated by the frequency estimation unit, where the specification includes a cut-off frequency of a low-pass filter.
Abstract translation: 目的：提供一种用于自适应动态正交解调的装置和方法，以通过将偏置的信号分量精确地转换为基带信号来减少在正交解调处理期间的信号的能量损失。 构成：频率估计单元（110）根据传播深度估计接收到的超声波信号的中心频率的变化。 动态正交解调单元（120）使用估计的改变来实现动态正交解调。 动态滤波器（130）从由频率估计单元估计的中心频率确定滤波器的规格，其中该规格包括低通滤波器的截止频率。
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Patent Agency Ranking
公开(公告)号：KR101126181B1
公开(公告)日：2012-03-22
申请号：KR1020100014353
申请日：2010-02-17
Applicant: 서강대학교산학협력단
IPC: A61B8/00
CPC classification number: G01S7/52044 , G01S15/8963
Abstract: 본 발명은 초음파 영상 시스템의 화소점에 수신 집속하는 방법에 관한 것으로서 적어도 두 개 이상의 송신 주사선의 데이터를 이용하여 화소점의 빔집속 데이터를 송신 주사선별로 획득하고, 각각의 송신 주사선과 화소점 사이의 거리에 따라 송신 주사선별로 획득한 화소점의 빔집속 데이터를 선형 보간하는 것을 특징으로 하며, 송신 주사선의 간격이 넓어지면서 발생하는 구획화 현상에 의한 영상의 왜곡을 줄일 수 있고, 송신 주사선의 수를 줄여 프레임율을 높일 때 증가하는 구획화를 제거하여 높은 프레임율로 구획화가 없는 영상을 얻을 수 있다.
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公开(公告)号：KR1020120010012A
公开(公告)日：2012-02-02
申请号：KR1020100071455
申请日：2010-07-23
Applicant: 서강대학교산학협력단
Abstract: PURPOSE: An apparatus and a method for HIFU therapy are provided to enable a user to operate without damaging blood vessel and internal organs. CONSTITUTION: An apparatus for HIFU therapy comprises: a HIFU treatment transducer(141) which transmits high intensity focused ultrasound in order to focus energy on a treatment position; a B-mode signal processing unit(150) which forms a B-mode video signal; an ultrasonic wave signal processing unit(130) which generates an ultrasound image treatment position image; an image integration unit(160) which outputs a signal of a combined image of a B-mode focused image and a treatment position image; and a system controller(110) which calibrates the focal point of high intensity focused ultrasound.
Abstract translation: 目的：提供用于HIFU治疗的装置和方法，以使用户能够在不损伤血管和内脏的情况下操作。 构成：用于HIFU治疗的装置包括：HIFU治疗换能器（141），其传送高强度聚焦超声以将能量聚焦在治疗位置; 形成B模式视频信号的B模式信号处理单元（150）; 产生超声波图像处理位置图像的超声波信号处理部（130） 输出B模式聚焦图像和处理位置图像的组合图像的信号的图像合成单元（160）; 以及校准高强度聚焦超声的焦点的系统控制器（110）。
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公开(公告)号：KR101092649B1
公开(公告)日：2011-12-13
申请号：KR1020100015885
申请日：2010-02-22
Applicant: 서강대학교산학협력단
IPC: A23L3/54
Abstract: 본 발명은 초음파 속도를 추정하는 방법에 관한 것으로서 각 채널로 수신되는 채널 데이터에 초음파 속도로부터 계산되는 수신 집속 지연 시간을 적용하고, 수신 집속 지연 시간이 적용된 채널 데이터로부터 각 채널 데이터 위상 간의 차이를 산출한 다음, 산출된 각 채널 데이터 위상 간의 차이를 이용하여 최적의 초음파 속도를 추정하는 것을 특징으로 하며, 매질에 따라 달라지는 초음파 속도를 추정하여 빔집속과 스캔변환에 이용함으로써, 위상 왜곡을 최소화하고, SNR, 공간 해상도 및 콘트라스트 해상도가 개선된 초음파 영상을 디스플레이할 수 있다.
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公开(公告)号：KR1020110022445A
公开(公告)日：2011-03-07
申请号：KR1020090080044
申请日：2009-08-27
Applicant: 서강대학교산학협력단
IPC: A61B8/00
Abstract: PURPOSE: A system for configuring an ultrasonic wave image and method thereof are provided to prevent lateral resolution deterioration even though a synthetic aperture focusing method using a virtual sound source is used. CONSTITUTION: A method for configuring an ultrasonic wave image comprises the following units. A location of a virtual sound source for applying a synthetic aperture focusing method is set. A beam pattern is produced from an image point based on the location of each virtual sound source.
Abstract translation: 目的：提供一种用于配置超声波图像的系统及其方法，以便即使使用使用虚拟声源的合成孔径聚焦方法来防止横向分辨率劣化。 构成：用于配置超声波图像的方法包括以下单元。 设置用于应用合成孔径聚焦方法的虚拟声源的位置。 基于每个虚拟声源的位置从图像点产生波束图案。
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公开(公告)号：KR1020110022440A
公开(公告)日：2011-03-07
申请号：KR1020090080037
申请日：2009-08-27
Applicant: 서강대학교산학협력단
IPC: A61B8/00
Abstract: PURPOSE: An ultrasonic wave signal beam former and a beam forming method using the same are provided to reduce hardware complexity even though the hardware complexity increases if a sampling frequency is higher than an existing frequency. CONSTITUTION: An ultrasonic wave signal beam former comprises the following units. A sampling unit samples an ultrasonic wave signal by a sampling frequency which is N times higher than a central frequency that an array converter has. The array converter receives an ultrasonic wave signal reflected from a collection point. A memory unit stores the ultrasonic wave signal sampled in the sampling unit. A time delay calculating unit calculates a time delay value for selecting an ultrasonic wave signal to be interpolated among ultrasonic wave signals stored in the memory unit.
Abstract translation: 目的：提供超声波信号波束形成器和使用该超声波波束形成方法的波束形成方法，以便在采样频率高于现有频率时硬件复杂性增加时降低硬件复杂度。 构成：超声波信号束形成器包括以下单元。 采样单元以比阵列转换器具有的中心频率高出N倍的采样频率对超声波信号进行采样。 阵列转换器接收从收集点反射的超声波信号。 存储单元存储在采样单元中采样的超声波信号。 时间延迟计算单元计算用于选择存储在存储单元中的超声波信号之中的要插值的超声波信号的时间延迟值。
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