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    • 21. 发明授权
    • 자기공명영상 잡음 제거 방법 및 장치
    • 用于消除磁共振图像噪声的方法和装置
    • KR101359206B1
    • 2014-02-07
    • KR1020130005824
    • 2013-01-18
    • 연세대학교 산학협력단
    • 황도식
    • A61B5/055
    • G01R33/565G06T5/002G06T5/50G06T2207/10088G06T2207/30004
    • Disclosed are a method and an apparatus for eliminating noise in magnetic resonance images. According to the present invention, the method for eliminating noise in magnetic resonance images includes a step (a) of successively obtaining magnetic resonance images on the same part in a predetermined time range; a step (b) of calculating the probability information that the tissue of a first pixel is the same as that of a second pixel by using decay information according to the signal intensity of the first and second pixel of the magnetic resonance images; and a step (c) of determining the new signal intensity of the first and second pixel by weighted-averaging the signal intensity of the first and second pixel according to the probability information. [Reference numerals] (S100) Obtain a plurality of magnetic resonance images; (S102) Determine a same tissue; (S104) Calculate the average of same tissue pixels
    • 公开了一种消除磁共振图像中的噪声的方法和装置。 根据本发明,用于消除磁共振图像中的噪声的方法包括在预定时间范围内在相同部分上依次获得磁共振图像的步骤(a); 根据磁共振图像的第一和第二像素的信号强度,通过使用衰减信息来计算第一像素的组织与第二像素的组织相同的概率信息的步骤(b) 以及通过根据概率信息对第一和第二像素的信号强度加权平均来确定第一和第二像素的新信号强度的步骤(c)。 (附图标记)(S100)获得多个磁共振图像; (S102)确定相同的组织; (S104)计算相同组织像素的平均值
    • 22. 发明授权
    • 선택적 회질 영상을 획득할 수 있는 자기공명영상 장치 및 이를 이용한 자기공명영상 획득방법
    • 用于构造灰度物体的磁网谐振成像装置选择MR图像和使用其的方法
    • KR101310706B1
    • 2013-09-24
    • KR1020120035696
    • 2012-04-05
    • 고려대학교 산학협력단
    • 박재석이현열
    • A61B5/055
    • A61B5/0042A61B5/055A61B2576/026G01R33/5602G01R33/5617G06T11/008G06T2207/10088G06T2207/20216G06T2207/30016
    • PURPOSE: A magnetic resonance imaging apparatus for selectively acquiring a grey matter magnetic resonance image and a magnetic resonance image acquiring method using the same are provided to remove fundamentally the necessity of long inversion time by applying an inversion pulse for controlling a white matter image signal, thereby innovatively shortening the whole image time. CONSTITUTION: An inversion pulse generating unit (100) applies an inversion pulse about an organism in order to suppress a white matter image signal. An excitation pulse generating unit (200) applies an RF excitation pulse in order to excite magnetization in the organism after reverse time by the inversion pulse. An image signal receiving part (300) respectively obtains a first final image signal and a second final image signal from a first echo train and a second echo train in an RF refocusing pulse train. A video generator (400) produces a grey matter image from the first final image signal and the second final image signal. A magnetization preparation part (500) prepares longitudinal axis magnetization before the magnetization preparation part applies a first inversion pulse. [Reference numerals] (100) Inversion pulse generating unit; (200) Excitation pulse generating unit; (300) Image signal receiving part; (400) Video generator; (500) Magnetization preparation part
    • 目的:提供用于选择性获取灰度磁共振图像的磁共振成像装置和使用该磁共振图像的磁共振图像获取方法,以通过应用用于控制白质图像信号的反转脉冲来基本上消除长时间反转时间的必要性, 从而创新地缩短整个图像时间。 构成:反转脉冲发生单元(100)对生物体施加反转脉冲以抑制白质图像信号。 励磁脉冲发生单元(200)施加RF激励脉冲,以便通过反转脉冲在反向时间之后激发生物体中的磁化。 图像信号接收部分(300)分别从RF重聚焦脉冲串中的第一回波串和第二回波串获得第一最终图像信号和第二最终图像信号。 视频发生器(400)从第一最终图像信号和第二最终图像信号产生灰度图像。 磁化准备部件(500)在磁化准备部件施加第一反转脉冲之前准备纵轴磁化强度。 (附图标记)(100)反转脉冲发生单元; (200)励磁脉冲发生单元; (300)图像信号接收部; (400)视频发生器; (500)磁化准备部分
    • 23. 发明公开
    • 양전자 방출 단층 촬영에서의 영상 보정 방법 및 장치
    • 装置和校正位置发射图像的方法
    • KR1020130083205A
    • 2013-07-22
    • KR1020120003856
    • 2012-01-12
    • 삼성전자주식회사
    • 박병관이성덕송태용이재목
    • G06T5/00A61B6/00
    • G06T7/0012A61B6/037G06T5/003G06T5/50G06T2200/04G06T2207/10081G06T2207/10088G06T2207/10104G06T2207/30004
    • PURPOSE: A method and an apparatus for correcting a positron emission tomography image are provided to compensate the motion blur of an image in an image process technology by minimizing the noise by zero crossing while maintaining signal-to-noise ratio when compensating the image. CONSTITUTION: A positron emission tomography (PET) detector detects line-of-response (LOR) data emitted from a photographing object (91). An extractor extracts only data through time information when the LOR data is detected (92). A converter estimates a location of a tracer through the information of the LOR data and converts the estimated location into image information (93). A compensator deblurs the converted image and reduces motion blur (94). [Reference numerals] (91) Detect LOR data; (92) Extract according to a code line; (93) Convert to images; (94) Deblurring; (AA) Start; (BB) Code; (CC) Finish
    • 目的:提供一种用于校正正电子发射断层摄影图像的方法和装置,以补偿图像处理技术中的图像的运动模糊,通过在补偿图像的同时保持信噪比来最小化过零噪声。 构成:正电子发射断层摄影(PET)检测器检测从拍摄物体(91)发射的响应线(LOR)数据。 当检测到LOR数据时,提取器仅通过时间信息提取数据(92)。 A转换器通过LOR数据的信息来估计示踪器的位置,并将估计的位置转换为图像信息(93)。 补偿器解除转换后的图像并减少运动模糊(94)。 (附图标记)(91)检测LOR数据; (92)根据代码行提取; (93)转换为图像; (94)脱脂; (AA)开始; (BB)代码; (CC)完成
    • 24. 发明公开
    • 자기공명영상을 분석하는 방법, 장치 그리고 자기공명영상을 분석하기 위한 프로그램이 기록된 기록매체
    • 用于分析磁共振成像的方法和装置,以及用于执行方法的记录介质
    • KR1020130045544A
    • 2013-05-06
    • KR1020110109808
    • 2011-10-26
    • 연세대학교 산학협력단
    • 김동현박재석김응엽양승욱
    • G06T7/00A61B5/055
    • G06K9/6202G06T7/32G06T2207/10088G06T2207/30016
    • PURPOSE: A method for analyzing an MRI(Magnetic Resonance Image), a device thereof, and a program recording medium thereof are provided to reduce the number of incorrect tumor candidates by applying an MRI black blood imaging technique and a template comparison technique. CONSTITUTION: An image obtainment unit obtains an image by applying an MRI black blood imaging technique(S210). A preprocessing unit preprocesses the obtained image(S220). A tumor candidate extraction unit extracts a tumor candidate by using a template comparison technique(S230). A feature extraction unit extracts a lot of information for the extracted tumor candidate(S240). [Reference numerals] (AA) Start; (BB) No; (CC) Yes; (DD) End; (S210) Apply an MRI blood imaging technique; (S220) Preprocess; (S230) Extract a tumor candidate; (S240) Extract the feature of the extracted tumor candidate; (S250) Tumor tissue?; (S260) Display on an original image
    • 目的:提供一种用于分析MRI(磁共振图像)的方法,其装置及其程序记录介质,以通过应用MRI黑血成像技术和模板比较技术来减少不正确的肿瘤候选物的数量。 构成:图像获取单元通过应用MRI黑血成像技术获得图像(S210)。 预处理单元预处理所获得的图像(S220)。 肿瘤候选提取单元通过使用模板比较技术提取肿瘤候选物(S230)。 特征提取单元提取用于所提取的肿瘤候选物的大量信息(S240)。 (附图标记)(AA)开始; (BB)否; (CC)是; (DD)结束; (S210)应用MRI血液成像技术; (S220)预处理; (S230)提取肿瘤候选者; (S240)提取提取的肿瘤候选者的特征; (S250)肿瘤组织 (S260)在原始图像上显示
    • 26. 发明授权
    • 편도체 형태 분석 방법 및 이를 이용한 장치
    • 使用相同方法制备亚氨酸形状分析方法和装置
    • KR101102624B1
    • 2012-01-04
    • KR1020100095532
    • 2010-09-30
    • 서울대학교산학협력단
    • 김남국류인균김형준김지은황재욱
    • A61B6/02G06T11/00
    • A61B6/466A61B5/055A61B6/02G06T15/00G06T2207/10072G06T2207/10088
    • PURPOSE: A method of an amygdala shape analysis and an apparatus using the same is provided to accurately the determination area of an amygdaloid body by analyzing the shape of the amygdaloid body and the subnucleus of the amygdaloid body. CONSTITUTION: An input unit(110) receives two dimensional amygdaloid body information. A three dimension volume coordinate generating unit(170) generates three amygdaloid body normal coordinates A quantitative analysis part(150) compares a normal coordinates with a predetermined amygdaloid body coordinate and extracts discrimination domain. A volume standardization section(120) determines three dimensional volume coordinate. A coordinate matching unit(130) changes three dimensional volume coordinate into a normal coordinates applied to an average amygdaloid body. A display unit displays the extracted discrimination domain.
    • 目的:通过分析杏仁体和扁桃体的子核的形状,提供杏仁体形状分析的方法和使用该方法的装置来准确地确定杏仁体的确定区域。 构成:输入单元(110)接收二维杏仁体信息。 三维体积坐标生成单元(170)生成三个杏仁体正常坐标。定量分析部(150)将正常坐标与预定的杏仁体坐标进行比较,并提取辨别域。 体积标准化部分(120)确定三维体积坐标。 坐标匹配单元(130)将三维体积坐标改变为应用于平均杏仁体的正常坐标。 显示单元显示提取的鉴别域。
    • 28. 发明公开
    • 3D DISPLAY DEVICE
    • 3D显示设备
    • KR20070119981A
    • 2007-12-21
    • KR20060054632
    • 2006-06-17
    • CHUN HONG SUG
    • CHUN HONG SUG
    • H04N13/04A61B1/00
    • A61B5/0033G06T2207/10012G06T2207/10088
    • A three-dimensional image display device is provided to obtain a sharp three-dimensional image by rotating an opaque white pipe or a high-glossed metal pipe when there is no need to display the shape of the interior of a target object such as a drink can. Translucent band screens each having a different rotation ratio and a different band width are rotated to create several cylindrical screens each having a different diameter in the air, to which ultrasonic waves, X-ray CT images, MRI images are projected to display cubical organs of the exterior and the interior. An opaque white band screen or a high-glossed plated pipe each having the same rotation radius and band width is disposed at the circumference uniformly to form a screen in the air, to which an image is projected to display only the exterior.
    • 提供三维图像显示装置,以便在不需要显示诸如饮料的目标物体的内部形状时通过旋转不透明白色管或高光泽金属管来获得尖锐的三维图像 能够。 旋转每个具有不同旋转比和不同带宽的半透明带屏幕被旋转以产生每个在空气中具有不同直径的多个圆柱形筛网,超声波,X射线CT图像,MRI图像被投影到其上以显示立方体器官 外部和内部。 每个具有相同旋转半径和带宽的不透明白色屏幕或高光泽镀层管均匀地设置在圆周上,以在空气中形成屏幕,图像被投影到该屏幕上仅显示外部。
    • 30. 发明公开
    • 뇌 이미지에서 백질과 회백질의 분리 및 체적 산출방법
    • 用于体积计算和分离脑图像中白点和灰度的方法
    • KR1020010000002A
    • 2001-01-05
    • KR1019990024561
    • 1999-06-26
    • 박종원
    • 박종원
    • G06T7/60
    • G06T5/40G06T2207/10088G06T2207/30016
    • PURPOSE: A method for a volume calculation and a separation of a white matter and a gray matter in a brain image is provided to calculate the volume by separating the white matter and the gray matter in a brain image provided from a magnetic resonance imaging device(MRI). CONSTITUTION: A method for a volume calculation and a separation of a white matter and a gray matter in a brain image includes the following steps. Firstly, from a brain image of a PD image and a T2 image are removed a part except a brain. Secondly, from a PD image and a T2 image are removed the brain and a spinal chord. thirdly, each partial volume of the white matter and the gray matter is calculated by the use of a histogram based upon the PD image. Fourthly, an integral value of the distribution function is calculated and a discrimination value is calculated. Fifthly, the separated image is generated on the basis of the discrimination value. Sixthly, each of the volumes of the white matter and the gray matter is calculated by the use of partial volume information of the white matter and the gray matter and slice information provided from a computed tomagraph.
    • 目的:提供一种用于脑图像中的体积计算和白质和灰质分离的方法,以通过分离由磁共振成像装置提供的脑图像中的白质和灰质来计算体积( MRI)。 构成:脑图像中的体积计算和白质与灰质分离的方法包括以下步骤。 首先从PD图像和T2图像的脑图像中除去大脑以外的部分。 其次,从PD图像和T2图像中去除大脑和脊髓。 第三,通过使用基于PD图像的直方图来计算白质和灰质的每个部分体积。 第四,计算分布函数的积分值并计算鉴别值。 第五,基于鉴别值产生分离的图像。 第六,通过使用从计算的段落提供的白质的部分体积信息和灰质以及切片信息来计算白质和灰质的每一个体积。