公开(公告)号：US20070183586A1

公开(公告)日：2007-08-09

申请号：US11653142

申请日：2007-01-12

申请人： Markus Lendl

发明人： Markus Lendl

IPC分类号： G21K1/00

CPC分类号： G21K1/04

摘要： A radioscopy device is provided. The radioscopy device includes a detector grid; and a scattered radiation matrix. The detector grid is disposed relative to the scattered radiation matrix, which is substantially perpendicular to a direction in which the integral across both location-frequency coordinates of the Fourier transforms of the detector grid and the scattered radiation matrix is at a minimum.

摘要翻译： 提供了一种放射检查装置。 放射检查装置包括检测器格栅; 和散射辐射矩阵。 检测器栅格相对于散射辐射矩阵设置，该散射辐射矩阵基本上垂直于检测器网格的傅里叶变换的两个位置频率坐标和散射辐射矩阵之间的积分最小的方向。

公开(公告)号：US08086007B2

公开(公告)日：2011-12-27

申请号：US12286970

申请日：2008-10-03

申请人： Michelle Xiao-Hong Yan ,  Ti-chiun Chang ,  Markus Lendl ,  Stefan Boehm ,  Tong Fang ,  Peter Durlak

发明人： Michelle Xiao-Hong Yan ,  Ti-chiun Chang ,  Markus Lendl ,  Stefan Boehm ,  Tong Fang ,  Peter Durlak

IPC分类号： G06K9/00

CPC分类号： G06K9/4619 ,  G06K2209/05 ,  G06T7/0012

摘要： A method and system for image quality assessment is disclosed. The image quality assessment method is a no-reference method for objectively assessing the quality of medical images. This method is guided by the human vision model in order to accurately reflect human perception. A region of interest (ROI) of medical image is divided into non-overlapping blocks of equal size. Each of the blocks is categorized as a smooth block, a texture block, or an edge block. A perceptual sharpness measure, which is weighted by local contrast, is calculated for each of the edge blocks. A perceptual noise level measure, which is weighted by background luminance, is calculated for each of the smooth blocks. A sharpness quality index is determined based on the perceptual sharpness measures of all of the edge blocks, and a noise level quality index is determined based on the perceptual noise level measures of all of the smooth blocks. An overall image quality index can be determined by using task specific machine learning of samples of annotated images. The image quality assessment method can be used in applications, such as video/image compression and storage in healthcare and homeland security, and band-width limited wireless communication.

摘要翻译： 公开了一种用于图像质量评估的方法和系统。 图像质量评估方法是客观评估医学图像质量的非参考方法。 这种方法是以人类视觉模型为指导，以准确反映人类的感知。 医学图像的感兴趣区域（ROI）被划分成相等大小的不重叠块。 每个块被分类为平滑块，纹理块或边缘块。 针对每个边缘块计算出由局部对比度加权的感知锐度度量。 为每个平滑块计算感知噪声水平测量，其由背景亮度加权。 基于所有边缘块的感知锐度测量来确定锐度质量指标，并且基于所有平滑块的感知噪声水平测量来确定噪声水平质量指数。 可以通过使用注释图像的样本的任务特定机器学习来确定整体图像质量指数。 图像质量评估方法可用于医疗保健和国土安全中的视频/图像压缩和存储等应用，以及带宽有限的无线通信。

公开(公告)号：US07471770B2

公开(公告)日：2008-12-30

申请号：US11653142

申请日：2007-01-12

申请人： Markus Lendl

发明人： Markus Lendl

IPC分类号： G21K1/00

CPC分类号： G21K1/04

摘要： A radioscopy device is provided. The radioscopy device includes a detector grid; and a scattered radiation matrix. The detector grid is disposed relative to the scattered radiation matrix, which is substantially perpendicular to a direction in which the integral across both location-frequency coordinates of the Fourier transforms of the detector grid and the scattered radiation matrix is at a minimum.

摘要翻译： 提供了一种放射检查装置。 放射检查装置包括检测器格栅; 和散射辐射矩阵。 检测器栅格相对于散射辐射矩阵设置，该散射辐射矩阵基本上垂直于检测器网格的傅里叶变换的两个位置频率坐标和散射辐射矩阵之间的积分最小的方向。

公开(公告)号：US20080267475A1

公开(公告)日：2008-10-30

申请号：US12150216

申请日：2008-04-24

申请人： Markus Lendl

发明人： Markus Lendl

IPC分类号： A61B5/00

CPC分类号： A61B6/504 ,  A61B5/7285 ,  A61B6/12 ,  A61B6/481 ,  A61B6/541 ,  A61B8/543 ,  G06T5/50 ,  G06T7/33 ,  G06T2207/10116 ,  G06T2207/20016 ,  G06T2207/20132 ,  G06T2207/20216 ,  G06T2207/30052 ,  G06T2207/30101 ,  G06T2207/30204

摘要： The invention relates to a method for high-resolution display of vessel implants in angiographic images, featuring the steps: recording at least two images of an object-catheter combination including catheter markers with a medical imaging method; detection of an region of interest created in the form of an area between the balloon markers which completely contains the object to be registered for each recorded image; coarse registration of the region of interest images by registration of the respective pairs of balloon markers of all recorded images; fine registration of the region of interest image content/of the region of interest image by registration of the region of interest content; and arithmetic averaging across the fine-registered images.

摘要翻译： 本发明涉及用于血管造影图像中的血管植入物的高分辨率显示的方法，其特征在于以下步骤：使用医学成像方法记录包括导管标记物的物 - 导管组合的至少两个图像; 以完全包含要记录的每个记录图像的对象的气球标记之间的区域的形式生成的感兴趣区域的检测; 通过注册所有记录图像的各个气球标记对来粗略地注册感兴趣区域图像; 通过注册感兴趣的内容区域，对感兴趣区域图像内容/感兴趣区域图像的精细注册图像; 并在精细注册的图像上进行算术平均。

公开(公告)号：US20080039719A1

公开(公告)日：2008-02-14

申请号：US11789928

申请日：2007-04-26

申请人： Jan Boese ,  Markus Lendl

发明人： Jan Boese ,  Markus Lendl

IPC分类号： A61B6/12 ,  H05G1/60

CPC分类号： A61M25/02 ,  A61B5/0456 ,  A61B5/7289 ,  A61B6/481 ,  A61B6/504 ,  A61M2025/0253 ,  A61M2025/028

摘要： There is described a method for determining an optimal trigger time for an ECG-triggered recording of an object. In this respect, a time sequence of dynamic images is firstly acquired with simultaneous recording of an ECG signal, then a time in the cardiac cycle is assigned to each dynamic image, and finally the dynamic images are analyzed, for example by calculation of a degree of similarity, in order to identify the time of minimal movement of the object within the time sequence.

摘要翻译： 描述了一种用于确定对ECG的ECG触发记录的最佳触发时间的方法。 在这方面，首先通过同时记录ECG信号获取动态图像的时间序列，然后将心动周期中的时间分配给每个动态图像，最后分析动态图像，例如通过计算度 的相似性，以便在时间序列内识别对象的最小移动时间。

公开(公告)号：US08457374B2

公开(公告)日：2013-06-04

申请号：US12777563

申请日：2010-05-11

申请人： Markus Lendl

发明人： Markus Lendl

IPC分类号： G06K9/00

CPC分类号： G06K9/3216 ,  G06K2009/3225 ,  G06K2209/057 ,  G06T7/11 ,  G06T2207/10081 ,  G06T2207/30021

摘要： A medical image data processing system automatically identifies a catheterization device including marker objects for use in identifying the catheterization device in a medical image for Angiography or another medical procedure. The system includes an image data processor that automatically identifies non-marker objects in a medical image by comparing image data representing individual non-marker objects with image data representing a template non-marker object. The processor automatically identifies catheterization device marker objects by comparing image data representing individual candidate marker objects with image data representing a template marker object and by processing image representative data to provide processed image data excluding image data representing non-marker objects. A user interface generates data representing a display image indicating identified marker objects and an associated catheterization device using the processed image data for presentation to a user.

摘要翻译： 医学图像数据处理系统自动识别包括用于在用于血管造影术或其他医疗程序的医学图像中识别导管插入装置的标记物体的导管插入装置。 该系统包括图像数据处理器，其通过将表示各个非标记对象的图像数据与表示模板非标记对象的图像数据进行比较来自动识别医学图像中的非标记对象。 处理器通过将表示各个候选标记对象的图像数据与表示模板标记对象的图像数据进行比较并且通过处理图像代表数据来提供除了表示非标记对象的图像数据的处理图像数据，来自动识别导管插入装置标记对象。 用户界面产生表示指示识别的标记对象的显示图像的数据，以及使用所处理的图像数据来呈现给用户的相关联的导管插入装置。

公开(公告)号：US08208701B2

公开(公告)日：2012-06-26

申请号：US12150216

申请日：2008-04-24

申请人： Markus Lendl

发明人： Markus Lendl

IPC分类号： G06K9/00

CPC分类号： A61B6/504 ,  A61B5/7285 ,  A61B6/12 ,  A61B6/481 ,  A61B6/541 ,  A61B8/543 ,  G06T5/50 ,  G06T7/33 ,  G06T2207/10116 ,  G06T2207/20016 ,  G06T2207/20132 ,  G06T2207/20216 ,  G06T2207/30052 ,  G06T2207/30101 ,  G06T2207/30204

摘要： The invention relates to a method for high-resolution display of vessel implants in angiographic images, featuring the steps: recording at least two images of an object-catheter combination including catheter markers with a medical imaging method; detection of an region of interest created in the form of an area between the balloon markers which completely contains the object to be registered for each recorded image; coarse registration of the region of interest images by registration of the respective pairs of balloon markers of all recorded images; fine registration of the region of interest image content/of the region of interest image by registration of the region of interest content; and arithmetic averaging across the fine-registered images.

摘要翻译： 本发明涉及用于血管造影图像中的血管植入物的高分辨率显示的方法，其特征在于以下步骤：使用医学成像方法记录包括导管标记物的物 - 导管组合的至少两个图像; 以完全包含要记录的每个记录图像的对象的气球标记之间的区域的形式生成的感兴趣区域的检测; 通过注册所有记录图像的各个气球标记对来粗略地注册感兴趣区域图像; 通过注册感兴趣的内容区域，对感兴趣区域图像内容/感兴趣区域图像的精细注册图像; 并在精细注册的图像上进行算术平均。

公开(公告)号：US07609869B2

公开(公告)日：2009-10-27

申请号：US11472844

申请日：2006-06-22

申请人： Philipp Bernhardt ,  Markus Lendl

发明人： Philipp Bernhardt ,  Markus Lendl

IPC分类号： G06K9/00

CPC分类号： G06T5/10 ,  G06T5/003 ,  G06T2207/10116 ,  G06T2207/20016 ,  G06T2207/20021 ,  G06T2207/30004

摘要： A computer dismantles a two-dimensional initial image into partial images containing components that vary locally with partial image frequencies and a residual image containing a direct component which is locally invariable. For each partial image and residual image the computer determines a weighting factor and sums the weighted images into a final image. Based on a comparison of the partial image frequencies with a target frequency, the computer determines a partial image as a pilot image and its frequency as a pilot frequency. The computer determines weighting factors of the partial images so that partial images whose frequencies are below the pilot frequency are weighted less than the pilot image, and partial images whose frequencies are above the pilot frequency makes a large contribution when the noise component in the initial image is small and a small contribution when the noise component in the initial image is large.

摘要翻译： 计算机将二维初始图像拆分成包含局部图像频率本地变化的分量的部分图像，以及包含局部不变的直接分量的残差图像。 对于每个部分图像和残差图像，计算机确定加权因子并将加权图像加总成最终图像。 基于部分图像频率与目标频率的比较，计算机将部分图像确定为导频图像，并将其频率作为导频。 计算机确定部分图像的加权因子，使得其频率低于导频的部分图像被加权小于导频图像，并且其频率高于导频的部分图像在初始图像中的噪声分量时具有很大的贡献 当初始图像中的噪声分量较大时，其贡献小。

公开(公告)号：US20070016108A1

公开(公告)日：2007-01-18

申请号：US11486697

申请日：2006-07-14

申请人： Estelle Camus ,  Volker Heer ,  Markus Lendl

发明人： Estelle Camus ,  Volker Heer ,  Markus Lendl

IPC分类号： A61B5/107

CPC分类号： A61B6/12 ,  A61B6/463 ,  A61B6/466 ,  A61B6/481 ,  A61B6/504 ,  A61B6/541 ,  G06T7/33 ,  G06T7/38 ,  G06T2207/10081 ,  G06T2207/10116 ,  G06T2207/30048 ,  G06T2207/30052 ,  G06T2207/30101

摘要： The invention relates to a method for 3D visualization of vascular inserts in the human body using C-arm radiography comprising: firstly recording a contrast-agent-free vessel system having a vascular insert of two series x-ray recordings with different angulations, secondly contrast-agent-based recording the same vessel system of two series x-ray recordings, processing the first two series recordings for improving image quality of the image data sets containing the insert representation, matching the vessel anatomy from the second two series recordings to the insert representation contained in the processed first two series recordings by 2D matching, computing a 3D data set of a region around the insert enclosing the insert as completely as possible based on the processed first two series recordings, computing a 3D data set of the vessel system based on the second two series recordings, and superimposing the two computed 3D data sets based on the 2D matching.

摘要翻译： 本发明涉及一种使用C臂射线照相法在人体中对血管插入物进行3D可视化的方法，包括：首先记录具有不同角度的两个串联x射线记录的血管插入物的不含造影剂的血管系统，其次是对比度 基于记录的两个系列X射线记录的同一容器系统，处理前两个系列记录，以改善包含插入表示的图像数据集的图像质量，将血管解剖结构与第二个两个系列记录匹配到插入 通过2D匹配包含在经处理的前两个系列记录中的表示，基于经处理的前两个系列记录计算尽可能完整地包围插入物的插入物的3D数据集，计算基于容器系统的3D数据集 在第二个两个系列记录上，并且基于2D匹配叠加两个计算的3D数据集。

公开(公告)号：US20060291613A1

公开(公告)日：2006-12-28

申请号：US11472844

申请日：2006-06-22

申请人： Philipp Bernhardt ,  Markus Lendl

发明人： Philipp Bernhardt ,  Markus Lendl

IPC分类号： H05G1/60 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12

CPC分类号： G06T5/10 ,  G06T5/003 ,  G06T2207/10116 ,  G06T2207/20016 ,  G06T2207/20021 ,  G06T2207/30004

摘要： A computer dismantles a two-dimensional initial image into partial images containing components that vary locally with partial image frequencies and a residual image containing a direct component which is locally invariable. For each partial image and residual image the computer determines a weighting factor and sums the weighted images into a final image. Based on a comparison of the partial image frequencies with a target frequency, the computer determines a partial image as a pilot image and its frequency as a pilot frequency. The computer determines weighting factors of the partial images so that partial images whose frequencies are below the pilot frequency are weighted less than the pilot image, and partial images whose frequencies are above the pilot frequency makes a large contribution when the noise component in the initial image is small and a small contribution when the noise component in the initial image is large.