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31. 发明申请

US20070058849A1 Region delineation in computer tomographic angiography 失效
标题翻译：计算机断层造影中的区域划分
公开(公告)号：US20070058849A1
公开(公告)日：2007-03-15
申请号：US10554355
申请日：2004-04-14
申请人： Cristian Lorenz
发明人： Cristian Lorenz
IPC分类号： G06K9/00 , G06K9/34
CPC分类号： A61B6/504 , A61B6/481 , G06T7/12 , G06T7/149 , G06T2207/10081 , G06T2207/20132 , G06T2207/30048
摘要： The semi-automatic extraction and delineation of the cardiac region of interest in computer tomographic angiography images is time consuming and requires an experienced operator. According to the present invention, a completely automatic delineation and extraction of the CROI is provided, wherein the chest wall is detected and the region where the CROI is attached to the chest wall. Then, the descending aorta is detected. After that a circular initialization of a closed contour around a part of the CROI is performed, which is optimized in a subsequent step. Then, a propagation is performed through all slices of the CTA image, where the preceding contour of the preceding slice image is used for an actual contour optimization in the actual slice image. Advantageously, a fully automatic delineation and extraction of the CROI is provided within very short time.
摘要翻译：计算机断层造影图像中心脏区域的半自动提取和描绘是耗时的，需要有经验的操作者。根据本发明，提供了CROI的完全自动描绘和提取，其中检测到胸壁和CROI附接到胸壁的区域。然后，检测降主动脉。之后，执行围绕CROI的一部分的封闭轮廓的循环初始化，其在随后的步骤中被优化。然后，通过CTA图像的所有切片执行传播，其中先前切片图像的先前轮廓用于实际切片图像中的实际轮廓优化。有利地，在非常短的时间内提供CROI的全自动描绘和提取。

32. 发明申请

US20050157925A1 Method for interactive segmentation of a structure contained in an object 有权
标题翻译：用于对象中包含的结构的交互式分割的方法
公开(公告)号：US20050157925A1
公开(公告)日：2005-07-21
申请号：US10508562
申请日：2003-03-17
申请人： Cristian Lorenz
发明人： Cristian Lorenz
IPC分类号： A61B6/03 , G06T5/00 , G06T7/00 , G06T7/40 , G06K9/34 , G06T17/00
CPC分类号： G06T7/11 , G06T7/187 , G06T2207/10081 , G06T2207/20101 , G06T2207/30008
摘要： The invention relates to a method for the interactive segmentation of a structure contained in an object from a three-dimensional image of the object. In an expansion mode a region expansion process is carried out, the results of said process simply being completely or partly undone again in a contraction mode. A quasi-continuous similarity measure can be used to determine whether or not a voxel belongs to the structure to be segmented. The expansion taking place in the region expansion process always involves the voxels having the largest similarity measure each time.
摘要翻译：本发明涉及一种用于从对象的三维图像中包含在对象中的结构的交互式分割的方法。在膨胀模式中，进行区域膨胀过程，所述方法的结果在收缩模式中简单地完全或部分地被还原。可以使用准连续相似性度量来确定体素是否属于待分割的结构。在区域扩展过程中发生的扩展总是涉及每次具有最大相似性度量的体素。

33. 发明授权

US09367913B2 Choosing anatomical variant model for image segmentation 有权
标题翻译：选择图像分割的解剖变异模型
公开(公告)号：US09367913B2
公开(公告)日：2016-06-14
申请号：US13823472
申请日：2011-09-13
申请人： Cristian Lorenz , Hans Barschdorf , Tobias Klinder , Raghed Hanna
发明人： Cristian Lorenz , Hans Barschdorf , Tobias Klinder , Raghed Hanna
IPC分类号： G06T7/00 , G06T17/00 , G06T15/08
CPC分类号： G06T7/0012 , G06T7/12 , G06T7/149 , G06T15/08 , G06T17/00 , G06T2207/30004
摘要： A system (100) for segmenting an object in an image adapts a first model for segmenting the object to the image. A feature is extracted from the image based on the adapted first model. A second model is selected for segmenting the object from a plurality of models for segmenting the object, based on the feature extracted from the image. The second model includes additional detail of the object. The second model is utilized based on the adapted first model and/or the feature extracted from the image; the initialized second model is adapted to the image. The features extracted from the image based on the adapted first model help the system (100) to select the second model for segmenting the object from a plurality of models for segmenting the object. The adapted first model and/or the extracted features are also used for initializing the second model. Because the second model includes the additional detail of the object, the segmentation result using the second model is more complete than the segmentation result Obtained using the first model. Moreover, the initialization of the second model based on the adapted first model and/or the detected features Improves the accuracy of the second model adaptation.
摘要翻译：用于在图像中分割对象的系统（100）适应用于将对象分割成图像的第一模型。基于适配的第一模型从图像中提取特征。基于从图像提取的特征，选择第二模型用于从多个模型分割对象以分割对象。第二个模型包括对象的附加细节。基于适应的第一模型和/或从图像提取的特征来利用第二模型; 初始化的第二模型适用于图像。基于适配的第一模型从图像提取的特征帮助系统（100）选择用于从多个模型分割对象的第二模型以分割对象。适应的第一模型和/或提取的特征也用于初始化第二模型。因为第二个模型包括对象的附加细节，所以使用第二模型的分割结果比使用第一模型获得的分割结果更完整。此外，基于适配的第一模型和/或检测到的特征对第二模型的初始化提高了第二模型适应的准确性。

34. 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。

35. 发明授权

US08582883B2 Simultaneous model-based segmentation of objects satisfying pre-defined spatial relationships 有权
标题翻译：满足预定义空间关系的对象的同时基于模型的分割
公开(公告)号：US08582883B2
公开(公告)日：2013-11-12
申请号：US12935037
申请日：2009-03-30
申请人： Astrid Ruth Franz , Tobias Klinder , Robin Mitja Benjamin Wolz , Cristian Lorenz
发明人： Astrid Ruth Franz , Tobias Klinder , Robin Mitja Benjamin Wolz , Cristian Lorenz
IPC分类号： G06K9/34
CPC分类号： G06T7/12 , G06T7/149 , G06T2207/10072 , G06T2207/30012
摘要： The invention relates to a system (100) for segmenting a plurality of objects in image data using simultaneous model-based image segmentation. A surface mesh is adapted to each object to be segmented. To avoid or reduce the possibility of mesh collision, a plurality of connecting edges for connecting two proximal meshes are used. A connection energy defined for the plurality of connecting edges allows controlling the spatial relationship between the first and second mesh. This is achieved by including in the connection energy expression terms that will increase the connection energy when the lengths of edges of the plurality of connecting edges connecting the first and second mesh decrease. Using the reference configuration of the plurality of connecting edges defined based on the pre-positioned first and second mesh allows taking into account prior knowledge about a typical spatial relationship between the first and second object of the plurality of objects.
摘要翻译：本发明涉及一种用于使用同时基于模型的图像分割来分割图像数据中的多个对象的系统（100）。表面网格适合于要分割的每个对象。为了避免或减少网格碰撞的可能性，使用用于连接两个近侧网格的多个连接边缘。为多个连接边限定的连接能量允许控制第一和第二网格之间的空间关系。这是通过在连接第一和第二网格的多个连接边缘的边缘的长度减小的连接能量表达术语中包括将增加连接能量来实现的。使用基于预先定位的第一和第二网格定义的多个连接边缘的参考配置，可以考虑关于多个对象中的第一和第二对象之间的典型空间关系的先前知识。

36. 发明授权

US08111885B2 Image processing device and method 有权
标题翻译：图像处理装置及方法
公开(公告)号：US08111885B2
公开(公告)日：2012-02-07
申请号：US11815456
申请日：2006-02-03
申请人： Jens Von Berg , Cristian Lorenz
发明人： Jens Von Berg , Cristian Lorenz
IPC分类号： G06K9/00
CPC分类号： G06T7/149 , G06T7/12 , G06T2207/10072 , G06T2207/30048
摘要： The present invention relates to an image processing device and a corresponding image processing method for processing medical image data showing at least two image objects, including a segmentation unit for detection and/or segmentation of image objects in said image data. To allow a more accurate and better segmentation of target objects which are hard to localize and detect, it is proposed that the segmentation unit comprises: a selection unit (61) for selecting a target object for detection and/or segmentation and an intermediary object in said image data, which is easier detectable than said target object and for which position information about the spatial relationship to said target object are known, an intermediary object segmentation unit (62) for segmentation of said intermediary object in said image data, a target object detection unit (63) for detection and/or segmentation of said target object in said image data using said segmented intermediary object and said position information about the spatial relationship of said intermediary object to said target object.
摘要翻译：图像处理装置及图像处理方法技术领域本发明涉及图像处理装置和图像处理方法，该图像处理方法用于处理表示至少两个图像对象的医学图像数据，所述图像对象包括用于所述图像数据中的图像对象的检测和/或分割的分割单元。为了允许对难以定位和检测的目标对象进行更准确和更好的分割，提出了分割单元包括：选择单元（61），用于选择用于检测和/或分割的目标对象和中间对象所述图像数据比所述目标对象更容易检测，并且关于与所述目标对象的空间关系的位置信息是已知的），用于在所述图像数据中分割所述中间对象的中间对象分割单元（62），目标对象检测单元（63），用于使用所述分割的中间对象在所述图像数据中检测和/或分割所述目标对象，以及关于所述中间对象与所述目标对象的空间关系的位置信息。

37. 发明授权

US08094772B2 Reconstruction unit for reconstructing a fine reproduction of at least a part of an object 有权
标题翻译：重建单元，用于重建物体的至少一部分的精细再现
公开(公告)号：US08094772B2
公开(公告)日：2012-01-10
申请号：US12158069
申请日：2006-12-08
申请人： Michael Grass , Jens Berg , Cristian Lorenz
发明人： Michael Grass , Jens Berg , Cristian Lorenz
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B5/7289 , A61B6/4085 , A61B6/503 , G06T11/005 , G06T2211/412
摘要： A reconstruction unit is provided for receiving a sequence of data sets, the data sets representing structural information of the object. The reconstruction unit performs receiving scheduling information related to the data sets of the sequence of data sets. Then reconstructing a sequence of coarse reconstructions of the object by using the sequence of data sets and the scheduling information. Afterwards a sequence of adapted models of the object is generated by adapting a respective model to each of the coarse reconstructions. Then a motion of a predetermined portion of each of the adapted models is determined and a specific data set of the sequence of data sets is selected, wherein the specific data set corresponds to the adapted model with the minimum motion of the predetermined portion. Finally the reconstruction unit performs reconstructing a fine reconstruction of at least the part of the object using the specific data set.
摘要翻译：提供了重建单元，用于接收数据集的序列，所述数据集表示对象的结构信息。重建单元执行与数据集序列的数据集相关的接收调度信息。然后通过使用数据集序列和调度信息重构对象的粗略重构序列。之后，通过将相应的模型适配到每个粗略重建来产生对象的适应模型序列。然后，确定每个适配模型的预定部分的运动，并且选择数据集序列的特定数据集，其中特定数据集对应于具有预定部分的最小运动的适应模型。最后，重建单元使用特定的数据集来重构至少部分对象的精细重构。

38. 发明申请

US20110058061A1 SIMULTANEOUS MODEL-BASED SEGMENTATION OF OBJECTS SATISFYING PRE-DEFINED SPATIAL RELATIONSHIPS 有权
标题翻译：满足预先定义的空间关系的物体同步模型分类
公开(公告)号：US20110058061A1
公开(公告)日：2011-03-10
申请号：US12935037
申请日：2009-03-30
申请人： Astrid Ruth Franz , Tobias Klinder , Robin Mitja Benjamin Wolz , Cristian Lorenz
发明人： Astrid Ruth Franz , Tobias Klinder , Robin Mitja Benjamin Wolz , Cristian Lorenz
IPC分类号： G06K9/34 , H04N5/228
CPC分类号： G06T7/12 , G06T7/149 , G06T2207/10072 , G06T2207/30012
摘要： The invention relates to a system (100) for segmenting a plurality of objects in image data using simultaneous model-based image segmentation. A surface mesh is adapted to each object to be segmented. To avoid or reduce the possibility of mesh collision, a plurality of connecting edges for connecting two proximal meshes are used. A connection energy defined for the plurality of connecting edges allows controlling the spatial relationship between the first and second mesh. This is achieved by including in the connection energy expression terms that will increase the connection energy when the lengths of edges of the plurality of connecting edges connecting the first and second mesh decrease. Using the reference configuration of the plurality of connecting edges defined based on the pre-positioned first and second mesh allows taking into account prior knowledge about a typical spatial relationship between the first and second object of the plurality of objects.
摘要翻译：本发明涉及一种用于使用同时基于模型的图像分割来分割图像数据中的多个对象的系统（100）。表面网格适合于要分割的每个对象。为了避免或减少网格碰撞的可能性，使用用于连接两个近侧网格的多个连接边缘。为多个连接边限定的连接能量允许控制第一和第二网格之间的空间关系。这是通过在连接第一和第二网格的多个连接边缘的边缘的长度减小的连接能量表达术语中包括将增加连接能量来实现的。使用基于预先定位的第一和第二网格定义的多个连接边缘的参考配置，可以考虑关于多个对象中的第一和第二对象之间的典型空间关系的先前知识。

39. 发明申请

US20110052018A1 APPARATUS FOR SEGMENTING AN OBJECT COMPRISING SUB-OBJECTS 有权
标题翻译：用于分配包含子对象的对象的设备
公开(公告)号：US20110052018A1
公开(公告)日：2011-03-03
申请号：US12867522
申请日：2009-02-06
申请人： Thomas Blaffert , Hans Barschdorf , Jans Von Berg , Sebastian Peter Michael Dries , Cristian Lorenz , Rafael Wiemker , Tobias Klinder , Astrid Ruth Franz , Steffen Renisch
发明人： Thomas Blaffert , Hans Barschdorf , Jans Von Berg , Sebastian Peter Michael Dries , Cristian Lorenz , Rafael Wiemker , Tobias Klinder , Astrid Ruth Franz , Steffen Renisch
IPC分类号： G06K9/00 , G06K9/34
CPC分类号： G06T5/003 , G06T7/11 , G06T7/149 , G06T2207/10081 , G06T2207/20041 , G06T2207/20081 , G06T2207/20124 , G06T2207/20192 , G06T2207/30061
摘要： The present invention relates to an apparatus (1) for segmenting an object comprising sub-objects shown in an object image. The apparatus comprises a feature image generation unit (2) for generating a feature image showing features related to intermediate regions between the sub-objects and a segmentation unit (3) for segmenting the sub-objects by using the object image and the feature image. Preferentially, the feature image generation unit (2) is adapted for generating a feature image from the object image. In a further embodiment, the feature image generation unit (2) comprises a feature enhancing unit for enhancing features related to intermediate regions between the sub-objects in the object image.
摘要翻译：本发明涉及一种用于分割包含物体图像中所示的子对象的物体的装置（1）。该装置包括：特征图像生成单元，用于生成显示与子对象之间的中间区域相关的特征的特征图像和用于通过使用对象图像和特征图像来分割子对象的分割单元（3）。优选地，特征图像生成单元（2）适于从对象图像生成特征图像。在另一实施例中，特征图像生成单元（2）包括特征增强单元，用于增强与对象图像中的子对象之间的中间区域相关的特征。

40. 发明申请

US20090030657A1 SURFACE TESSELATION OF SHAPE MODELS 审中-公开
标题翻译：形状模型的表面压力
公开(公告)号：US20090030657A1
公开(公告)日：2009-01-29
申请号：US12097141
申请日：2006-12-15
申请人： Jens Von Berg , Frans Andreas Gerritsen , Juergen Weese , Cristian Lorenz , Jochen Peters , Olivier Ecabert
发明人： Jens Von Berg , Frans Andreas Gerritsen , Juergen Weese , Cristian Lorenz , Jochen Peters , Olivier Ecabert
IPC分类号： G06F17/50
CPC分类号： G06T17/20 , G06T17/10 , G06T17/205
摘要： The invention relates to a method (100) of and to a system (200) for determining a template mesh of a shape model on the basis of a plurality of instances of the shape model. The method of determining the template mesh of the shape model comprises an obtaining step (110) for obtaining the plurality of instances of the template mesh, a computing step (120) for computing a plurality of results on the basis of the plurality of instances of the shape model, a deciding step (130) for deriving a decision on the basis of the plurality of results, and a decimating step (140) for decimating the template mesh of the shape model on the basis of the decision, thereby determining the template mesh of the shape model. Thus, the template mesh of the shape model determined by the method of the invention better describes objects of interest at all locations.
摘要翻译：本发明涉及一种用于基于形状模型的多个实例来确定形状模型的模板网格的系统（200）的方法（100）。确定形状模型的模板网格的方法包括获取步骤（110），用于获得模板网格的多个实例;计算步骤（120），用于基于多个实例的多个实例来计算多个结果形状模型，用于基于多个结果导出判定的判定步骤（130），以及基于判定来抽取形状模型的模板网格的抽取步骤（140），从而确定模板形状模型的网格。因此，通过本发明的方法确定的形状模型的模板网格更好地描述了所有位置处的感兴趣对象。

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