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公开(公告)号：US20140193054A1
公开(公告)日：2014-07-10
申请号：US14117056
申请日：2012-05-22
申请人： Thomas Blaffert , Steffen Renisch , Bernd Schweizer , Zhiqiang Hu
发明人： Thomas Blaffert , Steffen Renisch , Bernd Schweizer , Zhiqiang Hu
IPC分类号： G06T11/00
CPC分类号： G06T11/005 , G01R33/481 , G06T7/11 , G06T7/155 , G06T7/174 , G06T7/181 , G06T2207/10084 , G06T2207/10088 , G06T2207/10104 , G06T2207/20152 , G06T2207/20221 , G06T2207/30004 , G06T2207/30008 , G06T2207/30061
摘要： The invention relates to an apparatus for generating an attenuation correction map. An image providing unit (5, 6) provides an image of an object comprising different element classes and a segmentation unit (11) applies a segmentation to the image for generating a segmented image comprising image regions corresponding to the element classes. The segmentation is based on at least one of a watershed segmentation and a body contour segmentation based on a contiguous skin and fat layers in the image. A feature determination unit (12) determines features of at least one of a) the image regions and b) boundaries between the image regions depending on image values of the image and an assigning unit (13) assigns attenuation values to the image regions based on the determined features for generating the attenuation correction map. The performed image processing steps can allow for producing a high quality attenuation correction map, even if the initial image does not comprise image values related to the attenuation of radiation like a CT image.
摘要翻译： 本发明涉及一种用于产生衰减校正图的装置。 图像提供单元（5,6）提供包括不同元素类别的对象的图像，并且分割单元（11）对图像应用分割以生成包括对应于元素类别的图像区域的分割图像。 分割基于基于图像中的连续皮肤和脂肪层的分水岭分割和身体轮廓分割中的至少一个。 特征确定单元（12）确定a）图像区域和b）图像区域之间的边界中的至少一个的特征，取决于图像的图像值，并且分配单元（13）基于图像区域向图像区域分配衰减值 确定的用于产生衰减校正图的特征。 执行的图像处理步骤可以允许产生高质量的衰减校正图，即使初始图像不包括像CT图像的辐射衰减相关的图像值。
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公开(公告)号：US09324167B2
公开(公告)日：2016-04-26
申请号：US14117056
申请日：2012-05-22
申请人： Thomas Blaffert , Steffen Renisch , Bernd Schweizer , Zhiqiang Hu
发明人： Thomas Blaffert , Steffen Renisch , Bernd Schweizer , Zhiqiang Hu
CPC分类号： G06T11/005 , G01R33/481 , G06T7/11 , G06T7/155 , G06T7/174 , G06T7/181 , G06T2207/10084 , G06T2207/10088 , G06T2207/10104 , G06T2207/20152 , G06T2207/20221 , G06T2207/30004 , G06T2207/30008 , G06T2207/30061
摘要： The invention relates to an apparatus for generating an attenuation correction map. An image providing unit (5, 6) provides an image of an object comprising different element classes and a segmentation unit (11) applies a segmentation to the image for generating a segmented image comprising image regions corresponding to the element classes. The segmentation is based on at least one of a watershed segmentation and a body contour segmentation based on a contiguous skin and fat layers in the image. A feature determination unit (12) determines features of at least one of a) the image regions and b) boundaries between the image regions depending on image values of the image and an assigning unit (13) assigns attenuation values to the image regions based on the determined features for generating the attenuation correction map. The performed image processing steps can allow for producing a high quality attenuation correction map, even if the initial image does not comprise image values related to the attenuation of radiation like a CT image.
摘要翻译： 本发明涉及一种用于产生衰减校正图的装置。 图像提供单元（5,6）提供包括不同元素类别的对象的图像，并且分割单元（11）对图像应用分割以生成包括对应于元素类别的图像区域的分割图像。 分割基于基于图像中的连续皮肤和脂肪层的分水岭分割和身体轮廓分割中的至少一个。 特征确定单元（12）确定a）图像区域和b）图像区域之间的边界中的至少一个的特征，取决于图像的图像值，并且分配单元（13）基于图像区域向图像区域分配衰减值 确定的用于产生衰减校正图的特征。 执行的图像处理步骤可以允许产生高质量的衰减校正图，即使初始图像不包括像CT图像的辐射衰减相关的图像值。
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3.发明授权Apparatus for generating assignments between image regions of an image and element classes 有权用于在图像和元素类的图像区域之间生成分配的装置公开(公告)号：US09336613B2
公开(公告)日：2016-05-10
申请号：US14117698
申请日：2012-05-23
申请人： Thomas Blaffert , Steffen Renisch , Bernd Schweizer , Zhiqiang Hu
发明人： Thomas Blaffert , Steffen Renisch , Bernd Schweizer , Zhiqiang Hu
CPC分类号： G06T11/008 , G06T7/0012 , G06T7/11 , G06T7/155 , G06T7/174 , G06T2207/10088 , G06T2207/10104 , G06T2207/20152 , G06T2207/20221 , G06T2207/30004 , G06T2207/30061
摘要： An apparatus for generating assignments between image regions of an image of an object and element classes includes an assigning unit (13) for assigning element classes to image regions of an element image of the object, which is indicative of a distribution of the element classes, depending on region and/or boundary features, which are determined depending on image values of a provided object image and provided first preliminary assignments. Thus, the resulting element image with the assignments to the element classes is not necessarily based on the provided object image only, but can also be based on the provided preliminary assignments. If the quality of the assignments defined by the element image would be restricted due to restrictions of the provided object image, these restrictions of the provided image can therefore be compensated by the preliminary assignments such that the quality of the resulting element image can be improved.
摘要翻译： 一种用于在对象的图像和元素类的图像区域之间生成分配的装置包括：分配单元（13），用于将元素类分配给对象的元素图像的图像区域，其指示元素类别的分布， 取决于根据所提供的对象图像的图像值确定的区域和/或边界特征，并且提供第一初步分配。 因此，具有对元素类的赋值的结果元素图像不一定仅基于所提供的对象图像，而是还可以基于所提供的初步分配。 如果由于所提供的对象图像的限制而限制由元素图像定义的分配的质量，则可以通过初步分配来补偿所提供的图像的这些限制，使得可以提高所得到的元素图像的质量。
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4.发明申请APPARATUS FOR GENERATING ASSIGNMENTS BETWEEN IMAGE REGIONS OF AN IMAGE AND ELEMENT CLASSES 有权用于生成图像和元素类的图像区域之间的分配的装置公开(公告)号：US20140133728A1
公开(公告)日：2014-05-15
申请号：US14117698
申请日：2012-05-23
申请人： Thomas Blaffert , Steffen Renisch , Bernd Schweizer , Zhiqiang Hu
发明人： Thomas Blaffert , Steffen Renisch , Bernd Schweizer , Zhiqiang Hu
CPC分类号： G06T11/008 , G06T7/0012 , G06T7/11 , G06T7/155 , G06T7/174 , G06T2207/10088 , G06T2207/10104 , G06T2207/20152 , G06T2207/20221 , G06T2207/30004 , G06T2207/30061
摘要： The invention relates to an apparatus for generating assignments between image regions of an image of an object and element classes. The apparatus (1) comprises an assigning unit (13) for assigning element classes to image regions of an element image of the object, which is indicative of a distribution of the element classes, depending on region and/or boundary features, which are determined depending on image values of a provided object image and provided first preliminary assignments. Thus, the resulting element image with the assignments to the element classes is not necessarily based on the provided object image only, but can also be based on the provided preliminary assignments. If the quality of the assignments defined by the element image would be restricted due to restrictions of the provided object image, these restrictions of the provided image can therefore be compensated by the preliminary assignments such that the quality of the resulting element image can be improved.
摘要翻译： 本发明涉及一种用于在对象和元素类的图像的图像区域之间生成分配的装置。 所述装置（1）包括分配单元（13），用于根据所确定的区域和/或边界特征将元素类别分配给所述对象的元素图像的图像区域，所述图像区域指示所述元素类别的分布 取决于提供的对象图像的图像值并提供第一初步分配。 因此，具有对元素类的赋值的结果元素图像不一定仅基于所提供的对象图像，而是还可以基于所提供的初步分配。 如果由于所提供的对象图像的限制而限制由元素图像定义的分配的质量，则可以通过初步分配来补偿所提供的图像的这些限制，使得可以提高所得到的元素图像的质量。
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5.发明授权Method of automatic extraction of the pulmonary artery tree from 3D medical images 有权从3D医学图像自动提取肺动脉树的方法公开(公告)号：US07970189B2
公开(公告)日：2011-06-28
申请号：US11815662
申请日：2006-02-06
IPC分类号： G06K9/00
CPC分类号： G06T7/155 , G06T7/11 , G06T7/149 , G06T2200/04 , G06T2207/10081 , G06T2207/20044 , G06T2207/20156 , G06T2207/30061 , G06T2207/30101
摘要： An automated method (1) for the automatic extraction of a pulmonary vessel tree from a 3D medical image, such as multi-slice CT data, is disclosed. A segmented pulmonary vessel is identified as either an artery or a vein by determining a measure for arterialness for the vessel. The measure is based on a relation of the orientation of a local bronchus to the orientation of the segmented pulmonary vessel of the local bronchus. When a vessel is identified as a pulmonary artery, it is added to the pulmonary artery tree. Radii of the pulmonary artery and bronchus are measured automatically and positions where a ratio of these radii exhibits unusual values are presented in a display, preferably for suggesting further assessment by a radiologist, which for instance is useful for pulmonary embolism detection.
摘要翻译： 公开了一种用于从诸如多层CT数据的3D医学图像自动提取肺血管树的自动化方法（1）。 通过确定血管动脉的测量，将分段的肺血管识别为动脉或静脉。 该措施基于局部支气管的取向与局部支气管的分段肺血管的取向的关系。 当血管被识别为肺动脉时，将其加入肺动脉树。 自动测量肺动脉和支气管的半径，并且在显示中呈现这些半径的比率显示出异常值的位置，优选用于暗示例如用于肺栓塞检测的放射科医师的进一步评估。
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公开(公告)号：US20110286652A1
公开(公告)日：2011-11-24
申请号：US13146885
申请日：2010-01-25
申请人： Sven Kabus , Cristian Lorenz , Nicole Schadewaldt , Roland Opfer , Ingwer Curt Carlsen , Steffen Renisch , Joerg Sabczynski , Hans Barschdorf , Jens Von Berg , Thomas Blaffert , Tobias Klinder
发明人： Sven Kabus , Cristian Lorenz , Nicole Schadewaldt , Roland Opfer , Ingwer Curt Carlsen , Steffen Renisch , Joerg Sabczynski , Hans Barschdorf , Jens Von Berg , Thomas Blaffert , Tobias Klinder
IPC分类号： G06K9/00
CPC分类号： A61B6/5235 , A61B5/08 , A61B6/541 , G06T7/33 , G06T2207/10081 , G06T2207/30061
摘要： A system for displaying lung ventilation information, the system comprising an input (12) and a processing unit (15). The input being provided for receiving multiple CT images (71) of a lung, each CT image (71) corresponding to one phase of at least two different phases in a respiratory cycle. The processing unit (15) being configured to compare CT images (71) corresponding to different phases in the respiratory cycle for determining a deformation vector field for each phase, to generate for each phase a ventilation image (72) based on the corresponding deformation vector field, to spatially align the ventilation images (72), and to generate for at least one common position (62) in each one of the aligned ventilation images (72), a function (81) of a time course of a ventilation value for said common position (62), each ventilation value in the function (81) being based on the deformation vector fields corresponding to the aligned ventilation images (73).
摘要翻译： 一种用于显示肺通气信息的系统，所述系统包括输入（12）和处理单元（15）。 所述输入被提供用于接收肺的多个CT图像（71），每个CT图像（71）对应于呼吸周期中的至少两个不同相的一个相。 所述处理单元（15）被配置为比较对应于呼吸周期中的不同相位的CT图像（71），以确定每个相位的变形矢量场，以根据相应的变形矢量为每个阶段生成通气图像（72） 在空间上对准通气图像（72），并且为每个对齐的通气图像（72）中的至少一个公共位置（62）产生一个通风值的时间过程的功能（81），用于 所述公共位置（62）中，所述功能（81）中的每个换气值基于对应于对齐的通气图像（73）的变形矢量场。
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7.发明申请METHOD OF AUTOMATIC EXTRACTION OF THE PULMONARY ARTERY TREE FROM 3D MEDICAL IMAGES 有权从三维医学图像中自动提取脉络膜的方法公开(公告)号：US20100128940A1
公开(公告)日：2010-05-27
申请号：US11815662
申请日：2006-02-06
IPC分类号： G06K9/62
CPC分类号： G06T7/155 , G06T7/11 , G06T7/149 , G06T2200/04 , G06T2207/10081 , G06T2207/20044 , G06T2207/20156 , G06T2207/30061 , G06T2207/30101
摘要： An automated method (1) for the automatic extraction of a pulmonary vessel tree from a 3D medical image, such as multi-slice CT data, is disclosed. A segmented pulmonary vessel is identified as either an artery or a vein by determining a measure for arterialness for the vessel. The measure is based on a relation of the orientation of a local bronchus to the orientation of the segmented pulmonary vessel of the local bronchus. When a vessel is identified as a pulmonary artery, it is added to the pulmonary artery tree. Radii of the pulmonary artery and bronchus are measured automatically and positions where a ratio of these radii exhibits unusual values are presented in a display, preferably for suggesting further assessment by a radiologist, which for instance is useful for pulmonary embolism detection.
摘要翻译： 公开了一种用于从诸如多层CT数据的3D医学图像自动提取肺血管树的自动化方法（1）。 通过确定血管动脉的测量，将分段的肺血管识别为动脉或静脉。 该措施基于局部支气管的取向与局部支气管的分段肺血管的取向的关系。 当血管被识别为肺动脉时，将其加入肺动脉树。 自动测量肺动脉和支气管的半径，并且在显示中呈现这些半径的比率显示出异常值的位置，优选用于暗示例如用于肺栓塞检测的放射科医师的进一步评估。
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公开(公告)号：US08892188B2
公开(公告)日：2014-11-18
申请号：US11815973
申请日：2006-02-03
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。
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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
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。
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公开(公告)号：US20080269598A1
公开(公告)日：2008-10-30
申请号：US11815973
申请日：2006-02-03
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。
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