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    • 1. 发明公开
    • 3차원 볼륨-단면 결합 영상 생성 방법
    • 3D体积计算耦合图像生成方法
    • KR1020020073841A
    • 2002-09-28
    • KR1020010013716
    • 2001-03-16
    • 한국과학기술원
    • 김근호권민정박현욱나종범
    • G06T17/10
    • PURPOSE: A 3D volume-plan coupled image generating method is provided to obtain an image in which a planer image of a body part is coupled with related volumetric portions, thereby providing images more precise and easier to understand in the medical fields. CONSTITUTION: A method for generating 3D volume-plan coupled images includes a volume rendering step of shearing an original image data with respect to an object by the shear-warp algorithm to obtain volume data on the sheared plan and generating an intermediate volume image formed on an intermediate image plan by mixing(S11), an MPR(Multi-Planer Reconstruction) image extracting step of generating topographical images with respect to a selected portion by MPR and carrying out affine transform proper to the intermediate image plan, an image coupling step of coupling the intermediate volume image with the MPR image(S12), and a volume-plan coupled image generating step of warping the intermediate volume image-MPR coupled image for generating a final volume-plan coupled image with respect to the object(S28,S29).
    • 目的:提供一种3D体积平面耦合图像生成方法,以获得其中身体部分的平面图像与相关体积部分耦合的图像,从而在医疗领域中提供更精确和更容易理解的图像。 构成:用于生成3D体积平面耦合图像的方法包括:体绘制步骤,通过剪切 - 翘曲算法剪切相对于对象的原始图像数据,以获得关于剪切计划的体数据,并生成在 通过混合(S11)的中间图像平面图,MPR(多平面重建)图像提取步骤,通过MPR生成相对于所选择的部分的地形图像,并执行适合于中间图像图案的仿射变换;图像耦合步骤 将中间体积图像与MPR图像耦合(S12),以及体积平面图耦合图像生成步骤,使中间体积图像MPR耦合图像变形,以生成关于对象的最终体积平面图耦合图像(S28,S29 )。
    • 3. 发明授权
    • 3차원 의료영상 데이터의 가시화방법
    • 如何可视化三维医学图像数据
    • KR100342435B1
    • 2002-07-03
    • KR1020000061083
    • 2000-10-17
    • 한국과학기술원
    • 박현욱김근호
    • G06T15/00
    • 본 발명은 3차원 의료영상 데이터의 가시화방법에 관한 것으로서, 더 상세하게는 부 표본 3차원 데이터로부터 저해상도 영상을 구하고 저해상도 영상 또는 깊이정보와 3차원 데이터를 이용, 고화질의 영상을 구현하여 의료영상의 3차원 데이터를 가시화하고 실시간 처리를 할 수 있는 3차원 의료영상 데이터의 가시화방법에 관한 것이다.
      본 발명은 3차원 데이터를 2x2x2의 크기 블록으로 평균하여 부 표본화된 데이터에서 저해상도 영상 또는 깊이 정보를 구하고 2차원으로 보간하여 저해상도 영상을 구하는 제1단계와, 상기 제1단계의 저해상도 영상과 원 데이터를 이용하여 고해상도 영상을 구하는 제2단계로 구성된다.
      본 발명에 의하면 고해상도의 MIP 및 VR 영상을 얻는 데 필요한 계산시간을 절약하여 화질을 가변하면서 빠르게 고화질 영상을 볼 수 있는 효과가 있다.
    • 4. 发明公开
    • 3차원 의료영상 데이터의 가시화방법
    • 用于视觉化三维医学视频数据的方法
    • KR1020020030451A
    • 2002-04-25
    • KR1020000061083
    • 2000-10-17
    • 한국과학기술원
    • 박현욱김근호
    • G06T15/00
    • G06T3/4076G06T7/0012G06T2207/10072
    • PURPOSE: A method for visualizing three-dimensional medical video data is provided to perform MIP(maximum Intensity Projection) and VR(Volume Rendering) in low resolution, and to implement a hierarchical MIP and VR video to be processed fast, so as to reduce a time, implement high-resolution video and help medical treatment of doctors. CONSTITUTION: A low-resolution MIP(14a) is calculated from sub-sampled data(10) for high-speed processing, and is interpolated(16) in two-dimensional to calculate low-resolution video(20). High-resolution MIP video(22) is calculated using the low-resolution video(20) and full original data(12). The sub-sampling in the step of S10 is obtained by averaging three-dimensional data to a 2x2x2 size block, wherein the 2x2x2 size block is related with internal values as well as adjacent voxels(volume elements). Calculating the low-resolution MIP(14a) from the sub-sampled data(10) enables high-speed processing and is appropriate for viewing a concerned area. Values of the low-resolution MIP(14a) and the sub-sampled data(10) are compared, to obtain entire resolution data corresponding to the value having higher relation.
    • 目的:提供一种可视化三维医学视频数据的方法,以低分辨率执行MIP(最大强度投影)和VR(Volume Rendering),并实现快速处理的分层MIP和VR视频,从而减少 一时间,实施高分辨率视频,帮助医生治疗。 构成:通过用于高速处理的子采样数据(10)计算低分辨率MIP(14a),并且以二维内插(16)以计算低分辨率视频(20)。 使用低分辨率视频(20)和全原始数据(12)计算高分辨率MIP视频(22)。 通过将三维数据平均到2x2x2尺寸的块来获得S10的步骤中的子采样,其中2x2x2尺寸块与内部值以及相邻体素(体积元素)相关。 从子采样数据(10)计算低分辨率MIP(14a)使得能够进行高速处理,并且适于观看相关区域。 比较低分辨率MIP(14a)和子采样数据(10)的值,以获得与具有较高关系的值相对应的全部分辨率数据。
    • 5. 发明授权
    • 확률적 렌더링에 따른 이미지의 잡음 제거 방법
    • 噪声降低图像的噪声减少方法
    • KR101282700B1
    • 2013-07-05
    • KR1020120024843
    • 2012-03-12
    • 한국과학기술원
    • 윤성의문보창김근호전종윤이종협
    • G06T15/50G06T15/80G06T5/00
    • G06T15/80G06T15/50
    • PURPOSE: A noise removal method of an image according to the probabilistic rendering is provided to preserve the image feature of an input noise image, which is obtained through the probabilistic rendering, and effectively remove the noise; thereby improving the image quality. CONSTITUTION: An input noise image (110) is obtained through the probabilistic rendering (100). As a dispersed ray tracing (200) using the flash shading is performed to an object, which is equal to an object of the input noise image, the support images (210,220) are obtained. After the input noise image and the support images are inputted, a result image (310) is obtained by a joint bidirectional filtering (300) of the input noise image and the support images. The support images are used as an estimate value of the input noise image. [Reference numerals] (100) Probabilistic rendering; (110) Input noise image; (200) Dispersed ray tracing; (210) Virtual flash image; (220) Depth image; (300) Joint bidirectional filtering; (310) Result image
    • 目的:提供根据概率渲染的图像的噪声去除方法,以保留通过概率渲染获得的输入噪声图像的图像特征,并有效地消除噪声; 从而提高图像质量。 构成:通过概率渲染(100)获得输入噪声图像(110)。 对于与输入的噪声图像的对象相等的对象,执行使用闪光遮蔽的分散光线跟踪(200),获得支持图像(210,220)。 在输入输入噪声图像和支持图像之后,通过输入噪声图像和支持图像的联合双向滤波(300)获得结果图像(310)。 支持图像用作输入噪声图像的估计值。 (附图标记)(100)概率渲染; (110)输入噪声图像; (200)分散光线跟踪; (210)虚拟闪存映像; (220)深度图像; (300)联合双向滤波; (310)结果图像
    • 6. 发明授权
    • 3차원 볼륨-단면 결합 영상 생성 방법
    • 3차원볼륨 - 단면결합영상생성방법
    • KR100420791B1
    • 2004-03-02
    • KR1020010013716
    • 2001-03-16
    • 한국과학기술원
    • 김근호권민정박현욱나종범
    • G06T17/10
    • PURPOSE: A 3D volume-plan coupled image generating method is provided to obtain an image in which a planer image of a body part is coupled with related volumetric portions, thereby providing images more precise and easier to understand in the medical fields. CONSTITUTION: A method for generating 3D volume-plan coupled images includes a volume rendering step of shearing an original image data with respect to an object by the shear-warp algorithm to obtain volume data on the sheared plan and generating an intermediate volume image formed on an intermediate image plan by mixing(S11), an MPR(Multi-Planer Reconstruction) image extracting step of generating topographical images with respect to a selected portion by MPR and carrying out affine transform proper to the intermediate image plan, an image coupling step of coupling the intermediate volume image with the MPR image(S12), and a volume-plan coupled image generating step of warping the intermediate volume image-MPR coupled image for generating a final volume-plan coupled image with respect to the object(S28,S29).
    • 目的:提供一种3D体平面耦合图像生成方法,以获得其中身体部分的平面图像与相关体积部分耦合的图像,由此提供更精确且更容易理解的医学领域中的图像。 用于生成3D体绘图耦合图像的方法包括体绘制步骤,该体绘制步骤通过剪切变形算法相对于对象剪切原始图像数据,以获得剪切计划上的体积数据,并生成在其上形成的中间体积图像 通过混合(S11)的中间图像计划,MPR(多平面重建)图像提取步骤,通过MPR针对选择的部分生成地形图像,并执行适合于中间图像计划的仿射变换;图像耦合步骤, 将中间体积图像与MPR图像耦合(S12);以及体积平面耦合图像生成步骤,用于对中间体积图像-MPR耦合图像进行翘曲以生成关于对象的最终体积平面耦合图像(S28,S29 )。