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1. 发明申请

WO2013027138A1 FREQUENCY DEPENDENT COMBINATION OF X-RAY IMAGES OF DIFFERENT MODALITIES 审中-公开
标题翻译：不同模式的X射线图像的频率相关组合
公开(公告)号：WO2013027138A1
公开(公告)日：2013-02-28
申请号：PCT/IB2012/053854
申请日：2012-07-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , MAACK, Hanns-Ingo , RÖSSL, Ewald , KOEHLER, Thomas , PROKSA, Roland
发明人： MAACK, Hanns-Ingo , RÖSSL, Ewald , KOEHLER, Thomas , PROKSA, Roland
IPC分类号： G06T5/50
CPC分类号： G06T11/60 , A61B6/484 , G06T5/50 , G06T2207/10116 , G06T2207/20056 , G06T2207/20221 , G06T2207/30004
摘要： The present invention relates to X-ray imaging technology. In phase-contrast imaging, different types of image information, e.g. absorption image information and differential phase-contrast image information, may be obtained by a single image acquisition process. Individual types of image information comprise different image properties. The present invention relates to a frequency dependent combination of different types of image information to obtain a combined image having improved properties over the individual image information and their respective image information type. Accordingly, an apparatus (56) as well as a method (100) for image processing in X-ray imaging of an object is provided comprising receiving (102) first image information of the object of a first image information type, receiving (104) second image information of the object of a second image information type,wherein the second image information type is different from the first image information type. Subsequently the first image information and the second image information is combined(106)to obtain combined image information of the object, wherein the combination of the first image information and the second image information is a frequency-dependent combination, depending on the spatial frequency of the first image information and the second image information.
摘要翻译：本发明涉及X射线成像技术。在相位对比成像中，不同类型的图像信息，例如，吸收图像信息和差分相位差图像信息可以通过单个图像获取处理获得。各种类型的图像信息包括不同的图像属性。本发明涉及不同类型的图像信息的频率相关组合，以获得具有相对于各个图像信息及其各自的图像信息类型具有改进的特性的组合图像。因此，提供了一种装置（56）以及用于对象的X射线成像中的图像处理的方法（100），包括接收（102）第一图像信息类型的对象的第一图像信息，接收（104）第二图像信息类型的对象的第二图像信息，其中第二图像信息类型与第一图像信息类型不同。随后，将第一图像信息和第二图像信息组合（106）以获得对象的组合图像信息，其中第一图像信息和第二图像信息的组合是频率相关组合，其取决于第一图像信息和第二图像信息。

2. 发明申请

WO2012114250A1 DETECTION APPARATUS 审中-公开
标题翻译：检测装置
公开(公告)号：WO2012114250A1
公开(公告)日：2012-08-30
申请号：PCT/IB2012/050755
申请日：2012-02-20
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , RÖSSL, Ewald , KOEHLER, Thomas , PROKSA, Roland
发明人： RÖSSL, Ewald , KOEHLER, Thomas , PROKSA, Roland
IPC分类号： A61B6/03
CPC分类号： G21K1/00 , A61B6/027 , A61B6/032 , A61B6/4035 , A61B6/4078 , A61B6/4233 , A61B6/482
摘要： The invention relates to a detection apparatus comprising a filter (20) for filtering a conical radiation beam (4) such that at least a first region (22) and a second region (23) of the radiation beam are generated having different energy spectra, wherein the first region of the radiation beam illuminates a first detector area (25) on a detection surface (21) of a detector, thereby generating a first set of detection values, and the second region of the radiation beam illuminates a second detector area (26) on the detection surface, thereby generating a second set of detection values. For example, by using the filter the detection apparatus can be used as dual-energy computed tomography apparatus, wherein, for instance, a standard computed tomography apparatus can be transformed to a dual-energy computed tomography apparatus by adding the filter to the standard computed tomography apparatus, preferentially without modifying the radiation source and the detector.
摘要翻译：本发明涉及一种检测装置，其包括用于过滤锥形辐射束（4）的过滤器（20），使得产生具有不同能谱的辐射束的至少第一区域（22）和第二区域（23）其中辐射束的第一区域照射检测器的检测表面（21）上的第一检测器区域（25），从而产生第一组检测值，并且辐射束的第二区域照亮第二检测器区域 26），从而产生第二组检测值。例如，通过使用滤波器，检测装置可以用作双能计算机断层摄影装置，其中，例如，标准计算机断层摄影装置可以通过将滤波器加到标准计算机断层摄影装置优选不改变辐射源和检测器的断层摄影装置。

3. 发明申请

WO2008149292A2 DETECTION DEVICE FOR DETECTING RADIATION 审中-公开
标题翻译：用于检测辐射的检测装置
公开(公告)号：WO2008149292A2
公开(公告)日：2008-12-11
申请号：PCT/IB2008/052170
申请日：2008-06-04
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , PROKSA, Roland , SCHLOMKA, Jens-Peter , RÖSSL, Ewald
发明人： PROKSA, Roland , SCHLOMKA, Jens-Peter , RÖSSL, Ewald
CPC分类号： G01T1/1648
摘要： The present invention relates to a detection device for detecting radiation emitted from a radiation source, wherein the detection device (6) comprises a detection surface (19) and lamellae (18) protruding from the detection surface (19), wherein the lamellae (18) comprise a first end portion (20) close to the detection surface (19) and a second end portion (21) remote from the detection surface (19) and wherein the first end portion (20) has a larger width than the second end portion (21). The invention relates further to a computed tomography apparatus comprising this detection device.
摘要翻译：本发明涉及一种用于检测从辐射源发射的辐射的检测装置，其中检测装置（6）包括从检测表面（19）突出的检测表面（19）和薄片（18），其中薄片（18））包括靠近检测表面（19）的第一端部（20）和远离检测表面（19）的第二端部（21），并且其中第一端部（20）的宽度大于第二端部分（21）。本发明进一步涉及包括该检测装置的计算机断层摄影装置。

4. 发明申请

WO2012176088A1 IMAGING APPARATUS 审中-公开
标题翻译：成像设备
公开(公告)号：WO2012176088A1
公开(公告)日：2012-12-27
申请号：PCT/IB2012/052865
申请日：2012-06-07
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , RÖSSL, Ewald , THRAN, Axel , PROKSA, Roland
发明人： RÖSSL, Ewald , THRAN, Axel , PROKSA, Roland
IPC分类号： G01N23/04 , A61B6/03
CPC分类号： G06T11/005 , A61B6/032 , A61B6/482 , A61B6/583 , G01N23/046 , G01N2223/401 , G01N2223/419 , G06T2211/408
摘要： The invention relates to an imaging apparatus (31) for imaging an object. A reconstruction unit (12) determines component projection data values, which correspond to, for example, a base material of the object, and reconstructs an image of the object based on the determined component projection data values. A component projection data value, which corresponds to a ray, is determined as a combination of weighted base functions, which depend on energy projection data values of the same ray and the orientation of the same ray. This allows considering a possible dependency of the corresponding decomposition on the orientation of the ray, thereby allowing the imaging apparatus to improve the quality of decomposing the provided energy projection data values into the component projection data values and thus of a finally reconstructed image of the object, which is reconstructed based on the component projection data values.
摘要翻译：本发明涉及一种用于对物体成像的成像装置（31）。重建单元（12）确定与例如对象的基础材料相对应的分量投影数据值，并且基于所确定的分量投影数据值来重构对象的图像。对应于射线的分量投影数据值被确定为加权基函数的组合，其依赖于相同射线的能量投影数据值和相同射线的取向。这允许考虑相应分解对于射线取向的可能依赖性，从而允许成像装置提高将所提供的能量投影数据值分解成分量投影数据值并因此提高对象的最终重建图像的质量，其基于分量投影数据值被重建。

5. 发明申请

WO2012101537A1 SPECTRAL IMAGING 审中-公开
标题翻译：光谱成像
公开(公告)号：WO2012101537A1
公开(公告)日：2012-08-02
申请号：PCT/IB2012/050150
申请日：2012-01-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , SCHIRRA, Carsten Oliver , LANZA, Gregory , PROKSA, Roland , RÖSSL, Ewald , THRAN, Axel , MANZKE, Robert
发明人： SCHIRRA, Carsten Oliver , LANZA, Gregory , PROKSA, Roland , RÖSSL, Ewald , THRAN, Axel , MANZKE, Robert
IPC分类号： G06T11/00
CPC分类号： G06T7/0012 , A61B6/481 , A61B6/482 , G06T11/005 , G06T2211/408
摘要： A method includes analyzing a spectral projection image of a portion of a subject, generating a value quantifying an amount of a target specific contrast material in a region of interest of the spectral projection image, and generating a signal indicative of a presence of the target in response to the value satisfying a predetermined threshold level.
摘要翻译：一种方法包括分析对象的一部分的光谱投影图像，产生量化在所述光谱投影图像的感兴趣区域中的目标特定对比度材料的量的值，以及生成指示所述目标的存在的信号响应于满足预定阈值水平的值。

6. 发明申请

WO2013030708A2 PHOTON COUNTING DETECTOR 审中-公开
标题翻译：光电计数检测器
公开(公告)号：WO2013030708A2
公开(公告)日：2013-03-07
申请号：PCT/IB2012/054170
申请日：2012-08-16
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , RÖSSL, Ewald , PROKSA, Roland
发明人： RÖSSL, Ewald , PROKSA, Roland
CPC分类号： G01T1/24 , G01T1/241 , G01T1/247
摘要： Adetector array includes at least one direct conversion detector pixel (114 - 114 M ) configured to detect photons of poly-chromatic ionizing radiation. The pixel includes a cathode layer (116), an anode layer (118) including an anode electrode (118 -118 M ) for each of the at least one detector pixels, a direct conversion material (120), disposed between the cathode layer and the anode layer, anda gate electrode disposed in the direct conversion material, parallelto and between the cathode and anode layers.
摘要翻译：检测器阵列包括被配置为检测多色电离辐射的光子的至少一个直接转换检测器像素（114-140M）。像素包括阴极层（116），包括用于至少一个检测器像素中的每一个的阳极电极（118 -118M）的阳极层（118），直接转换材料（120），设置在阴极层和阳极层和设置在直接转换材料中的平行于阴极和阳极层之间的栅电极。

7. 发明申请

WO2008059425A3 RADIATION DETECTOR WITH MULTIPLE ELECTRODES ON A SENSITIVE LAYER 审中-公开
公开(公告)号：WO2008059425A3
公开(公告)日：2008-05-22
申请号：PCT/IB2007/054577
申请日：2007-11-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , ENGEL, Klaus, J. , ZEITLER, Guenter , BAEUMER, Christian , HERRMANN, Christoph , WIEGERT, Jens , PROKSA, Roland , RÖSSL, Ewald , STEADMAN BOOKER, Roger
发明人： ENGEL, Klaus, J. , ZEITLER, Guenter , BAEUMER, Christian , HERRMANN, Christoph , WIEGERT, Jens , PROKSA, Roland , RÖSSL, Ewald , STEADMAN BOOKER, Roger
IPC分类号： G01T1/29
摘要： The invention relates to a radiation detector (200), particularly an X-ray detector, which comprises at least one sensitive layer (212) for the conversion of incident photons (X) into electrical signals. A two-dimensional array of electrodes (213) is located on the front side of the sensitive layer (212), while its back side carries a counter- electrode (211). The size of the electrodes (213) may vary in radiation direction (y) for adapting the counting workload of the electrodes. Moreover, the position of the electrodes (213) with respect to the radiation direction (y) provides information about the energy of the detected photons (X).

8. 发明申请

WO2011073863A1 COMPUTED TOMOGRAPHY APPARATUS 审中-公开
标题翻译：计算机图像设备
公开(公告)号：WO2011073863A1
公开(公告)日：2011-06-23
申请号：PCT/IB2010/055712
申请日：2010-12-10
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KOEHLER, Thomas , PROKSA, Roland , ROESSL, Ewald
发明人： KOEHLER, Thomas , PROKSA, Roland , ROESSL, Ewald
IPC分类号： A61B6/03 , G01N23/04 , G06T11/00
CPC分类号： A61B6/032 , A61B6/469 , A61B6/542 , G01N23/046 , G01N2223/419 , G06T11/005 , Y10S378/901
摘要： The invention relates to a computed tomography apparatus for imaging an object. The computed tomography apparatus comprises a radiation source (2) for generating modulated radiation (4) traversing the object and a detector (6) for generating detection values depending on the radiation (4) after having traversed the object, while the radiation source (2) and the object are moved relative to each other. A weight providing unit (14) provides modulation weights for weighting the detection values depending on the modulation of the radiation (4) and a reconstruction unit (15) reconstructs an image of the object, wherein the detection values are weighted based on the provided modulation weights and an image of the object is reconstructed from the weighted detection values. This can allow to optimize the dose application to the object by modulating the radiation accordingly, wherein the reconstructed images still have a high quality.
摘要翻译：本发明涉及一种用于对物体成像的计算机断层摄影装置。计算机断层摄影装置包括用于产生经过物体的调制辐射（4）的辐射源（2）和用于在穿过物体之后产生取决于辐射（4）的检测值的检测器（6），而辐射源）并且对象相对于彼此移动。权重提供单元（14）提供调制权重，用于根据辐射（4）的调制对检测值进行加权，重建单元（15）重建对象的图像，其中基于所提供的调制对检测值进行加权从加权检测值重建对象的权重和图像。这可以通过相应地调节辐射来优化对物体的剂量应用，其中重建的图像仍然具有高质量。

9. 发明申请

WO2011036624A1 SYSTEM AND METHOD FOR GENERATING AN IMAGE OF A REGION OF INTEREST 审中-公开
标题翻译：用于生成兴趣区域的图像的系统和方法
公开(公告)号：WO2011036624A1
公开(公告)日：2011-03-31
申请号：PCT/IB2010/054256
申请日：2010-09-21
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KOEHLER, Thomas , PROKSA, Roland
发明人： KOEHLER, Thomas , PROKSA, Roland
IPC分类号： G06T5/50 , G06T11/00
CPC分类号： G06T11/008 , G06T5/50 , G06T2211/421 , G06T2211/424
摘要： The invention relates to an image generation system for generating an image of a region of interest. The image generation system comprises a measured data providing unit for providing measured data of the region of interest, a reconstruction unit (12) for reconstructing a first and a second image of the region of interest from the measured data using a first and a second reconstruction method, a noise determination unit (13) for determining first and second noise values for first and second image elements of the first and second image, and an image element combining unit (14) for combining corresponding first and second image elements into combined image elements forming a combined image based on the first and second noise values. By combining corresponding image elements of two differently reconstructed images based on determined noise values, a combined image of a region of interest can be generated with an improved quality.
摘要翻译：本发明涉及一种用于产生感兴趣区域的图像的图像生成系统。图像生成系统包括测量数据提供单元，用于提供感兴趣区域的测量数据;重建单元（12），用于使用第一和第二重构从所测量的数据重构感兴趣区域的第一和第二图像方法，用于确定第一和第二图像的第一和第二图像元素的第一和第二噪声值的噪声确定单元（13），以及用于将对应的第一和第二图像元素组合成组合图像元素的图像元素组合单元（14）基于第一和第二噪声值形成组合图像。通过基于确定的噪声值组合两个不同重建图像的相应图像元素，可以以改进的质量生成感兴趣区域的组合图像。

10. 发明申请

WO2006000997A2 IMAGING METHOD WITH BACK PROJECTION 审中-公开
标题翻译：具有后投影的成像方法
公开(公告)号：WO2006000997A2
公开(公告)日：2006-01-05
申请号：PCT/IB2005/052090
申请日：2005-06-24
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , NIELSEN, Tim , ZIEGLER, Andy , KOEHLER, Thomas , PROKSA, Roland
发明人： NIELSEN, Tim , ZIEGLER, Andy , KOEHLER, Thomas , PROKSA, Roland
IPC分类号： G06T15/00
CPC分类号： G06T11/006 , A61B6/027 , G06T2211/421 , Y10S378/901
摘要： The invention relates to an imaging method, especially a computerized tomography method, with which an object is penetrated by rays from different directions and measured values, which depend upon the intensity of the rays after penetrating the object, are acquired by a detector unit. From these measured values, an object image is reconstructed by means of back projection of measured-value-dependent back projection values. Therein, the object image is divided into overlapping, quasi-spherically symmetric image segments, each being defined by an image value and a quasi-spherically symmetric base function. Furthermore, during the back projection, the back projection values are added in proportions to the image values, wherein the proportion of a back projection value, which is added during the back projection to an image value, is dependent on a proportionality factor, which is equal to the average value of the line integrals of the base function belonging to the respective image value along those rays that have generated the measured value, on which the respective back projection value is dependent.
摘要翻译：本发明涉及一种成像方法，特别是计算机断层摄影方法，其中物体被来自不同方向的光线穿透，并且测量值取决于穿透物体之后的光线的强度，由检测器单元获取。从这些测量值，通过背投影测量值依赖的反投影值重建对象图像。其中，对象图像被划分为重叠的准球形对称图像片段，每个片段由图像值和准球形对称的基本功能定义。此外，在背投影期间，反投影值以与图像值成比例的方式相加，其中在后投影中添加的反投影值与图像值的比例取决于比例因子，即比例因子等于属于相应图像值的基本功能的线积分的平均值，沿着相应的背投影值依赖于已经产生测量值的那些射线。

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