专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20070160312A1 Apparatus and method for registering images of a structured object 审中-公开
标题翻译：用于登记结构化对象的图像的装置和方法
公开(公告)号：US20070160312A1
公开(公告)日：2007-07-12
申请号：US10597874
申请日：2005-02-02
申请人： Thomas Blaffert , Rafael Wiemker
发明人： Thomas Blaffert , Rafael Wiemker
IPC分类号： G06K9/32 , G06K9/00
CPC分类号： G06T7/30 , G06T2207/30061
摘要： The invention relates to an apparatus and a method for registering a first image (A1) with a second stored image (A2) of an object such as the chest (2) of a patient. The images (A1, A2) may, for instance, have been produced by an X-ray CT system (1) and be used in the trend control of lung tumors. The images (A1, A2) are automatically segmented into various object constituents (a, b, c). Following this, only image areas (B1, B2) of object constituents (b) relevant to the task in hand are registered. In the trend control of lung tumors, for instance, a registration of the lung areas (b) is sufficient.
摘要翻译：本发明涉及一种用于将第一图像（A 1）与诸如患者的胸部（2）的物体的第二存储图像（A 2）进行登记的装置和方法。图像（A 1，A 2）可以例如已经由X射线CT系统（1）产生并且用于肺肿瘤的趋势控制。图像（A 1，A 2）被自动分割成各种对象成分（a，b，c）。此后，仅登记与手头任务相关的对象成分（b）的图像区域（B 1，B 2）。在肺肿瘤的趋势控制中，例如肺部区域（b）的登记就足够了。

42. 发明申请

US20070098242A1 Analysis of pulmonary ct data 有权
标题翻译：肺ct数据分析
公开(公告)号：US20070098242A1
公开(公告)日：2007-05-03
申请号：US10560321
申请日：2004-05-28
申请人： Rafael Wiemker , Thomas Blaffert , Vladimir Pekar
发明人： Rafael Wiemker , Thomas Blaffert , Vladimir Pekar
IPC分类号： G06K9/00
CPC分类号： G06T7/0012
摘要： Ground glass opacities in the lung are non-solid nebular-like shadows in the parenchyma tissue of the lung, which may be precursors of a lung cancer. According to the present invention, ground glass opacities may automatically be determined on the basis of a texture analysis of the parenchyma. Advantageously, according to the present invention, a robust and reliable determination of ground glass opacities may be provided, even if vessels, lung walls, airspace or bronchi walls are present within the local neighborhood of the ground glass opacity.
摘要翻译：肺中的玻璃不透明度是肺实质组织中非固体的星状样阴影，可能是肺癌的前体。根据本发明，可以根据实质的纹理分析自动确定研磨玻璃的不透明度。有利地，根据本发明，即使在玻璃不透明度的局部邻域内存在容器，肺壁，空气或支气管壁，也可以提供坚实可靠的磨玻璃不透明度测定。

43. 发明申请

US20060050939A1 Computer-aided detection of lung nodules 失效
标题翻译：计算机辅助检测肺结节
公开(公告)号：US20060050939A1
公开(公告)日：2006-03-09
申请号：US10535465
申请日：2003-11-12
申请人： Rafael Wiemker
发明人： Rafael Wiemker
IPC分类号： G06K9/00
CPC分类号： G06T7/0012 , G06T7/11 , G06T2207/10081 , G06T2207/30064
摘要： The invention relates to a method and a device for forming an image of body structures from an image data set, notably for highlighting potential nodular structures (KI; KA) in a lung. The problem to be solved by the invention is to achieve automatic highlighting of potential nodular structures in methods of this kind. This is realized in that in a plurality of steps a binary data set is formed in which all pixels present in the image data set are subdivided into pixels to be marked and those not to be marked, a first filtering operation being performed in which for each pixel (D) there is determined a distance value which corresponds to the shortest distance between the pixel and the edge (KAG) of the image structure (KA) in which the pixel is situated, those pixels being selected from the binary data set whose distance value is below a predetermined distance limit value, there being performed a second filtering operation in which those previously selected pixels remain selected which are directly neighbored by two pixels having a smaller distance value in both directions of at least one straight line which extends through the pixel, there being performed a third filtering operation in which those previously selected pixels remain selected for which the surrounding pixels, being situated at a distance corresponding to the distance value of the pixel, have a distance value which is a predetermined distance difference value smaller than the distance value of the pixel to be tested itself, the pixels thus selected being used to form an image in which the selected pixels are highlighted.
摘要翻译：本发明涉及一种用于从图像数据集形成身体结构图像的方法和装置，特别是用于突出肺中的潜在结节结构（KI; KA）。本发明要解决的问题是在这种方法中实现潜在的结节结构的自动突出。这是由于在多个步骤中形成二进制数据集，其中存在于图像数据集中的所有像素被细分为要标记的像素和不被标记的像素，执行第一滤波操作，其中对于每个像素（D）确定与像素所在的图像结构（KA）的像素和边缘（KAG）之间的最短距离相对应的距离值，那些像素选自二进制数据集，其距离值在预定的距离限制值以下，执行第二滤波操作，其中先前选择的像素保持选择，其中至少一条直线延伸穿过该像素的两个方向上具有较小距离值的两个像素直接相邻执行了第三次滤波操作，其中先前选择的像素保持选择，周围像素位于其间对应于像素的距离值的距离值具有小于被测试像素本身的距离值的预定距离差值的距离值，所选择的像素被用于形成其中所选择的像素为突出显示。

44. 发明授权

US06373918B1 Method for the detection of contours in an X-ray image 失效
标题翻译：用于检测X射线图像中轮廓的方法
公开(公告)号：US06373918B1
公开(公告)日：2002-04-16
申请号：US09526429
申请日：2000-03-15
申请人： Rafael Wiemker , Sabine Dippel , Thorsten Buzug , Martin Stahl , Thomas Blaffert
发明人： Rafael Wiemker , Sabine Dippel , Thorsten Buzug , Martin Stahl , Thomas Blaffert
IPC分类号： G01N23083
CPC分类号： G06T7/0012 , A61B6/5252 , G06T7/12 , G06T2207/10116 , G06T2207/20061 , G06T2207/30004
摘要： The present invention relates to a method for automatically detecting contours of, for example, shutters or implants in an X-ray image. A number of closed paths is derived from the X-ray image, one of said closed paths being selected, in dependence on the contrast along the closed paths, as the contour. The closed paths may be derived from a set of line candidates on which contour pixel candidates are situated. The contour pixel candidates can be derived from a high-pass or gradient version of the X-ray image.
摘要翻译：本发明涉及一种用于自动检测X射线图像中的例如百叶窗或植入物的轮廓的方法。从X射线图像导出许多封闭路径，根据沿着封闭路径的对比度，所选择的一个所述封闭路径作为轮廓。闭合路径可以从轮廓像素候选位置所在的一组线候选导出。轮廓像素候选可以从X射线图像的高通或渐变版本导出。

45. 发明授权

US10380735B2 Image data segmentation 有权
公开(公告)号：US10380735B2
公开(公告)日：2019-08-13
申请号：US13637674
申请日：2011-03-16
申请人： Rafael Wiemker , Thomas Buelow , Daniel Bystrov , Torbjoern Vik , Heinrich Schulz
发明人： Rafael Wiemker , Thomas Buelow , Daniel Bystrov , Torbjoern Vik , Heinrich Schulz
IPC分类号： G06T7/00 , G06T7/12
摘要： A method for segmenting image data includes identifying a 2D boundary start position corresponding to tissue of interest in a cross-section of volumetric image data, wherein the start position is identified by a current position of a graphical pointer with respect to the cross-section, generating a preview 2D boundary for the tissue of interest based on the start position, displaying the preview 2D boundary superimposed over the cross-section, and updating the displayed preview 2D boundary if the position of the graphical pointer changes with respect to the cross-section.

46. 发明授权

US09833213B2 Ariadne wall taping for bronchoscopic path planning and guidance 有权
公开(公告)号：US09833213B2
公开(公告)日：2017-12-05
申请号：US13978198
申请日：2012-01-12
申请人： Rafael Wiemker , Tobias Klinder , Martin Bergtholdt
发明人： Rafael Wiemker , Tobias Klinder , Martin Bergtholdt
IPC分类号： A62B1/04 , A61B6/00 , G06T19/00 , A61B1/00 , G06T7/00 , G06T17/00 , A61B1/267 , A61B6/03 , A61B90/00 , A61B34/10
CPC分类号： A61B6/5294 , A61B1/00045 , A61B1/2676 , A61B6/03 , A61B6/032 , A61B6/466 , A61B6/52 , A61B90/37 , A61B2034/107 , A61B2090/365 , A61B2090/366 , G06T7/0012 , G06T17/00 , G06T19/00 , G06T2210/41
摘要： A method, system and program product are provided for planning an intervention procedure in a body lumen. A CT scan of the body lumen is performed. A virtual rendering is created of the inside of the body lumen corresponding to an interventional camera image. Then a virtual tape corresponding to a planned path for the intervention procedure is projected onto a wall of the body lumen. The virtual tape is projected onto the lumen wall, which is relatively distant from the camera point on the virtual rendering, so the tape does not appear to oscillate like a central thread. Also, since the virtual tape is located on the lumen wall, it does not occlude the center of the lumen, allowing a user to better visualize the lumen during planning, during fly through, and even during an actual intervention.

47. 发明授权

US09767550B2 Method and device for analysing a region of interest in an object using x-rays 有权
公开(公告)号：US09767550B2
公开(公告)日：2017-09-19
申请号：US13989507
申请日：2011-12-05
申请人： Ingwer-Curt Carlsen , Thomas Koehler , Gerhard Martens , Ewald Rossl , Rafael Wiemker
发明人： Ingwer-Curt Carlsen , Thomas Koehler , Gerhard Martens , Ewald Rossl , Rafael Wiemker
IPC分类号： G06K9/00 , G06T7/00 , G01N23/04
CPC分类号： G06T7/0012 , G01N23/046 , G01N2223/419
摘要： A method and a device for analyzing a region of interest in an object is proposed. The method comprises: (a) providing measurement data by a differential phase contrast X-ray imaging system, and (b) analyzing characteristics of the object in the region of interest. Therein, the measurement data comprise a 2-dimensional or 3-dimensional set of pixels wherein for each pixel the measurement data comprises three types of image data spatially aligned with each other, including (i) absorption representing image data A, (ii) differential phase contrast representing image data D, and (iii) coherence representing image data C. The analyzing step is based, for each pixel, on a combination of at least two of information comprised in the absorption representing image data A and information comprised in the differential phase contrast representing image data D and information comprised in the coherence representing image data C.

48. 发明授权

US09406146B2 Quantitative perfusion analysis 有权
标题翻译：定量灌注分析
公开(公告)号：US09406146B2
公开(公告)日：2016-08-02
申请号：US13380610
申请日：2010-06-23
申请人： Rafael Wiemker , Thomas Buelow
发明人： Rafael Wiemker , Thomas Buelow
IPC分类号： G06K9/00 , G06T7/40 , G06T7/20 , G06T7/00
CPC分类号： G06T7/401 , G06T7/0016 , G06T7/20 , G06T7/41 , G06T2207/10096 , G06T2207/20104 , G06T2207/30104
摘要： A system is disclosed for quantitative analysis of perfusion images comprising image elements having intensity values associated therewith. The system comprises a frequency distribution computing subsystem (1) for computing a plurality of frequency distributions of the intensity values of at least part of the images. The system comprises a perfusion information extractor (2) for extracting information relating to perfusion from the plurality of frequency distributions. The perfusion information extractor (2) comprises a shift detector (3) for detecting a shift of the intensity values of the frequency distribution. The perfusion information extractor (2) is arranged for extracting the information relating to perfusion, based on the detected shift. A user interface element (8) enables a user to indicate a boundary between the core region and the rim region by a single degree of freedom. A vesselness subsystem (9) associates a vesselness value with an image element.
摘要翻译：公开了一种用于定量分析包括具有与其相关联的强度值的图像元素的灌注图像的系统。该系统包括用于计算至少部分图像的强度值的多个频率分布的频率分布计算子系统（1）。该系统包括用于从多个频率分布中提取与灌注相关的信息的灌注信息提取器（2）。灌注信息提取器（2）包括用于检测频率分布的强度值的偏移的移位检测器（3）。灌注信息提取器（2）被布置为基于检测到的移位来提取与灌注有关的信息。用户界面元件（8）使得用户能够通过单个自由度来指示核心区域和边缘区域之间的边界。容器子系统（9）将容器值与图像元素相关联。

49. 发明授权

US08892188B2 Identifying abnormal tissue in images of computed tomography 有权
标题翻译：识别计算机断层扫描图像中的异常组织
公开(公告)号：US08892188B2
公开(公告)日：2014-11-18
申请号：US11815973
申请日：2006-02-03
申请人： Thomas Buelow , Rafael Wiemker , Cristian Lorenz , Steffen Renisch , Thomas Blaffert
发明人： Thomas Buelow , Rafael Wiemker , Cristian Lorenz , Steffen Renisch , Thomas Blaffert
IPC分类号： A61B6/03 , G06T7/00 , G06K9/34 , A61B6/00
CPC分类号： G06T7/0012 , A61B6/032 , A61B6/481 , A61B6/5217 , G06T5/50 , G06T7/10 , G06T7/12 , G06T7/149 , G06T2207/10081 , G06T2207/10116 , G06T2207/30061 , G06T2207/30064 , G06T2207/30101
摘要： An imaging method for identifying abnormal tissue in the lung is provided, comprising the recording of slice images of the lung by means of X-ray radiation, recording of blood vessels, differentiation of blood vessels and abnormal tissue, segmentation of the abnormal tissue and display of the segmented abnormal tissue on an output device. In addition, a computer tomograph for identifying abnormal tissue in the lung is provided, having a radiation source for recording slice images of the lung and blood vessels by means of X-ray radiation, a computer unit for differentiating the blood vessels from the abnormal tissue and for segmenting the abnormal tissue, as well as an output device for displaying the segmented abnormal tissue. Furthermore, a computer program is provided for controlling a computer tomograph for an identification of abnormal tissue in the lung by means of a radiation source, designed to record slice images of the lung and blood vessels by means of X-ray radiation, to differentiate the blood vessels from abnormal tissue, to segment the abnormal tissue and to control an output device for displaying the abnormal tissue.
摘要翻译：提供了一种用于鉴定肺中异常组织的成像方法，包括通过X射线照射记录肺的切片图像，记录血管，血管和异常组织的分化，异常组织的分割和显示的输出装置上的分段异常组织。另外，提供了一种用于识别肺中的异常组织的计算机断层摄影机，具有用于通过X射线辐射记录肺和血管的切片图像的辐射源，用于将血管与异常组织分离的计算机单元并且用于分割异常组织，以及用于显示分段的异常组织的输出装置。此外，提供了一种计算机程序，用于通过辐射源来控制用于识别肺中的异常组织的计算机断层摄影机，其被设计成通过X射线辐射记录肺和血管的切片图像，以区分来自异常组织的血管，分割异常组织并控制用于显示异常组织的输出装置。

50. 发明授权

US08805044B2 Segmenting pulmonary arteries 有权
标题翻译：分段肺动脉
公开(公告)号：US08805044B2
公开(公告)日：2014-08-12
申请号：US12937289
申请日：2009-04-14
申请人： Thomas Buelow , Rafael Wiemker
发明人： Thomas Buelow , Rafael Wiemker
IPC分类号： G06K9/00
CPC分类号： G06T7/162 , G06T7/33 , G06T2207/10081 , G06T2207/20016 , G06T2207/20072 , G06T2207/30061 , G06T2207/30101
摘要： A method of identifying at least part of a pulmonary artery tree (402) comprises receiving (102) a bronchial tree structure (500) and receiving (104) a pulmonary vessel structure (400). A pair of a first bronchial segment (602) and a first vessel segment (604) is identified (106), wherein the first bronchial segment and the first vessel segment are adjacent with respect to position and orientation. The first vessel segment is identified (108) as arterial segment of the pulmonary artery tree. A spatial transformation is applied (110) such that the first bronchial segment and the first vessel segment substantially coincide (602′). Respective further vessel segments (606, 608) are identified (112) adjacent to bronchial segments (610, 612), wherein the bronchial segments are comprised in the bronchial tree.
摘要翻译：识别肺动脉树（402）的至少一部分的方法包括接收（102）支气管树结构（500）并接收（104）肺血管结构（400）。识别出一对第一支气管段（602）和第一血管段（604）（106），其中第一支气管区段和第一血管区段相对于位置和取向相邻。识别第一血管段（108）作为肺动脉树的动脉段。应用空间变换（110）使得第一支气管段和第一血管段基本上重合（602'）。识别与支气管段（610,612）相邻的另外的血管段（606,608），其中支气管段包括在支气管树中。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式