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1. 发明授权

US06816571B2 Method and apparatus for transmitting information about a target object between a prescanner and a CT scanner 有权
标题翻译：用于在预分器和CT扫描器之间传送关于目标对象的信息的方法和装置
公开(公告)号：US06816571B2
公开(公告)日：2004-11-09
申请号：US10068459
申请日：2002-02-06
申请人： Richard R. Bijjani , Richard F. Eilbert , Shunghe Shi
发明人： Richard R. Bijjani , Richard F. Eilbert , Shunghe Shi
IPC分类号： G01N2304
CPC分类号： G01N23/087 , G01N23/046 , G01N2223/402 , G01N2223/419 , G01N2223/421 , G01V5/0041 , G01V5/005
摘要： A method or apparatus for analyzing an object includes an X-ray prescanner that performs a prescan of the object to determine prescan information about the object. Then, a CT scanner performs a CT scan on at least one plane of the object based on the prescan information to determine CT information. In one embodiment, if the CT scan of the object includes or is in the vicinity of metal, then metal artifact correction of a reconstructed image from the CT scan is performed based on the prescan information. In another embodiment, a processor analyzes the CT information and the prescan information to determine whether to update the prescan information based on the CT information
摘要翻译：用于分析对象的方法或装置包括执行对象的预扫描以确定关于对象的预扫描信息的X射线预处理器。然后，CT扫描仪基于预扫描信息对目标的至少一个平面进行CT扫描，以确定CT信息。在一个实施例中，如果对象的CT扫描包括或处于金属附近，则基于预扫描信息执行来自CT扫描的重建图像的金属伪影校正。在另一实施例中，处理器分析CT信息和预扫描信息，以确定是否基于CT信息来更新预扫描信息

2. 发明授权

US06792070B2 Radiation image recording method and apparatus 失效
标题翻译：辐射图像记录方法和装置
公开(公告)号：US06792070B2
公开(公告)日：2004-09-14
申请号：US10270289
申请日：2002-10-15
申请人： Hideyuki Sakaida
发明人： Hideyuki Sakaida
IPC分类号： G01N2304
CPC分类号： A61B6/484 , A61B6/00 , A61B6/4092 , A61B6/4216 , G01N23/04
摘要： Radiation is irradiated to an object, and the radiation, which carries image information of the object, is detected at a plurality of positions for image recording, which are set at different distances from the object, a plurality of radiation images of the object being thereby acquired. The acquisition of the radiation images is performed by use of a plurality of two-dimensional detectors, such that the radiation, which carries the image information of the object, at a position for image recording, which is remote from the object, is detected with a two-dimensional detector having a sensitivity higher than the sensitivity of a two-dimensional detector for detecting the radiation at a position for image recording, which is close to the object.
摘要翻译：辐射被照射到物体上，并且携带物体的图像信息的辐射被检测在用于图像记录的多个位置上，这些位置被设置在与物体不同的距离处，因此对象的多个辐射图像获得了通过使用多个二维检测器来进行放射线图像的获取，使得在用于图像记录的远离物体的位置处承载物体的图像信息的辐射被检测到二维检测器的灵敏度高于二维检测器的灵敏度，用于检测靠近物体的图像记录位置处的辐射。

3. 发明授权

US06763083B2 Article screening system 有权
标题翻译：文章筛选系统
公开(公告)号：US06763083B2
公开(公告)日：2004-07-13
申请号：US10232937
申请日：2002-08-30
申请人： Kenneth R. Fernandez
发明人： Kenneth R. Fernandez
IPC分类号： G01N2304
CPC分类号： G01V5/0058
摘要： During the last ten years patents directed to luggage scanning apparatus began to appear in the patent art. Absent from the variety of approaches in the art is stereoscopic imaging that entails exposing two or more images of the same object, each taken from a slightly different perspective. If the perspectives are too different, that is, if there is too much separation of the X-ray exposures, the image will look flat. Yet with a slight separation, a stereo separation, interference occurs. Herein a system is provided for the production of stereo pairs. One perspective, a left or a right perspective angle, is first established. Next, the other perspective angle is computed. Using these left and right perspectives the X-ray sources can then be spaced away from each other.
摘要翻译：在过去十年中，专利行李扫描仪的专利开始出现在专利文献中。从现有技术中的各种方法来看，立体成像需要暴露相同对象的两个或多个图像，每个图像都从略有不同的角度来看。如果观点太差，就是说，如果X射线曝光的分离太多，图像看起来就会平坦。然而，轻微的分离，立体声分离，发生干扰。这里提供了用于生产立体声对的系统。首先建立一个透视图，左视角或右视角。接下来，计算另一透视角。使用这些左和右视角，X射线源可以彼此间隔开。

4. 发明授权

US06751286B2 Computed-tomography system with filtering 失效
标题翻译：计算机断层扫描系统与滤波
公开(公告)号：US06751286B2
公开(公告)日：2004-06-15
申请号：US10150053
申请日：2002-05-16
申请人： Jan Timmer
发明人： Jan Timmer
IPC分类号： G01N2304
CPC分类号： G06T11/005
摘要： A computed-tomography system comprises a data-processing system arranged to receive attenuation profiles for respective orientations. A lowest representative noise level of the individual attenuation profiles is determined. The attenuation profiles are filtered in dependence of said lowest representative noise level. In particular it is achieved that the filtered attenuation profiles have the lowest maximum noise level among the received attenuation profiles.
摘要翻译：计算机断层摄影系统包括被布置为接收各个取向的衰减曲线的数据处理系统。确定各个衰减曲线的最低代表性噪声水平。根据所述最低代表性噪声电平对衰减曲线进行滤波。特别地，实现了滤波的衰减分布在接收的衰减分布中具有最低的最大噪声电平。

5. 发明授权

US06728333B2 Film density template and method for comparison of film exposure 失效
标题翻译：薄膜密度模板和比较薄膜曝光的方法
公开(公告)号：US06728333B2
公开(公告)日：2004-04-27
申请号：US10124924
申请日：2002-04-18
申请人： Donovan M. Bakalyar , Lance Hefner
发明人： Donovan M. Bakalyar , Lance Hefner
IPC分类号： G01N2304
CPC分类号： G01N23/04
摘要： The present invention provides an apparatus and method permitting one sheet of radiographic film to be exposed multiple times including a control unit for correcting the optical density of the film based upon the spatial variation of x-ray field intensity. In particular, the present invention includes a system and method for determining an optical density of radiographic imaging film utilizing a mask for absorbing soft x-ray radiation thereby creating a reference exposure, and further utilizing a template to execute a number of sequential exposures of radiographic imaging film such that the radiographic film is selectively irradiated. The control unit is adapted for deriving a corrective optical density value based upon reference measurements, and correcting the series of template exposures using the corrective optical density value.
摘要翻译：本发明提供了允许一张放射线照相胶片多次曝光的装置和方法，包括用于基于x射线场强度的空间变化校正胶片的光密度的控制单元。特别地，本发明包括一种系统和方法，该系统和方法用于利用掩模吸收软X射线辐射从而产生参考曝光来确定放射线照相成像薄膜的光密度，并进一步利用模板执行多次连续曝光成像膜，使得放射线照相胶片被选择性地照射。控制单元适于基于参考测量导出校正光密度值，并且使用校正光密度值来校正一系列模板曝光。

6. 发明授权

US06661868B2 Radiation inspection apparatus and radiation inspection method 失效
公开(公告)号：US06661868B2
公开(公告)日：2003-12-09
申请号：US10123756
申请日：2002-04-16
申请人： Ryoichi Sawada
发明人： Ryoichi Sawada
IPC分类号： G01N2304
CPC分类号： G01N23/04
摘要： A radiation inspection apparatus is configured in such a way as to totalize pixels, whose gray levels represented by pixel gray level information, which is outputted from radiation detector, are within a preset gray level range of gray level profile from XL to XH, and to inspect from a result of the totalization whether or not a stockout of object occurs. Thus, the apparatus is enabled to correctly determine an occurrence of a stockout of the object by simple data processing without performing pattern recognition on a radiation perspective image.

7. 发明授权

US06567496B1 Cargo inspection apparatus and process 有权
标题翻译：货物检验仪器和流程
公开(公告)号：US06567496B1
公开(公告)日：2003-05-20
申请号：US09686048
申请日：2000-10-11
申请人： Boris S. Sychev
发明人： Boris S. Sychev
IPC分类号： G01N2304
CPC分类号： G01V5/0016 , G01N23/04 , G01V5/0041
摘要： A cargo inspection apparatus and process includes scanning containers with x-rays along two different planes. Outputs from x-ray sensors along the two different planes are collected for use in establishing the presence of contraband within the container. Using the sensor output data, images of the container are provided and suspicious areas and background areas are identified on the images. By using representative suspicious area and background area geometry and compensating in the suspicious area for the effective estimated background thereat, the average atomic number and density of the suspicious contraband is established. The average atomic number and density is then compared with known atomic numbers and densities of contraband materials and an output indicative of whether the suspicious area falls within the parameters of actual contraband material is provided.
摘要翻译：货物检验装置和过程包括沿着两个不同的平面扫描具有x射线的容器。收集来自沿着两个不同平面的x射线传感器的输出用于确定容器内是否存在违禁品。使用传感器输出数据，提供容器的图像，并在图像上识别可疑区域和背景区域。通过使用代表性的可疑区域和背景区域几何，并在可疑区域补偿有效的估计背景，建立了可疑违禁品的平均原子数和密度。然后将平均原子数和密度与已知的违禁材料原子数和密度进行比较，并提供指示可疑区域是否落在实际违禁物质的参数内的输出。

8. 发明授权

US06563903B2 Container inspection apparatus 有权
公开(公告)号：US06563903B2
公开(公告)日：2003-05-13
申请号：US09889998
申请日：2001-07-23
申请人： Kejun Kang , Wenhuan Gao , Yinong Liu , Zhiqiang Chen , Yuanjing Li , Jianmin Li , Chuanxiang Tang , Junli Li , Huayi Zhang , Wanlong Wu , Zhizhong Liang , Dong Yun , Ou Sun , Jianjun Su , Shangmin Sun
发明人： Kejun Kang , Wenhuan Gao , Yinong Liu , Zhiqiang Chen , Yuanjing Li , Jianmin Li , Chuanxiang Tang , Junli Li , Huayi Zhang , Wanlong Wu , Zhizhong Liang , Dong Yun , Ou Sun , Jianjun Su , Shangmin Sun
IPC分类号： G01N2304
CPC分类号： G01V5/0008 , G01N23/04 , G01V5/0066
摘要： A relocatable container inspection device, which is constituted by modularized units, is used for inspecting a container. The device comprises: a first cabin unit including a radiation source for generating a beam of penetration radiation for penetrating the container to be inspected; a second cabin unit including detectors for detecting the beam of penetration radiation penetrating through the container being inspected and producing corresponding radiographic signals, the second cabin unit and the first cabin unit being arranged oppositely in both sides of an inspection passage; a gantry unit bridging the first cabin unit and the second cabin unit to form a portal-shaped frame adapted for straddling the container being inspected; means for moving the frame relative to the container being inspected along the inspection passage, so that the detectors receive the beam of the penetration radiation generated from the radiation resource and passing through the container being inspected, thereby continuously scanning the container and producing the corresponding radiographic signals, wherein the first cabin unit, the second cabin unit and the gantry unit are all individually made as modular units so as to be quickly and easily assembled and disassembled with each other on the inspection site. In the present invention, all of the modularized units of the container inspection device can be easily assembled and disassembled in the work field, and the dimensions of each modular unit are sized to be suitable for road transports and to be facilitate for the device's movement.

9. 发明授权

US06473487B1 Method and apparatus for physical characteristics discrimination of objects using a limited view three dimensional reconstruction 失效
标题翻译：用于使用有限视图三维重建的物体的物理特性辨别的方法和装置
公开(公告)号：US06473487B1
公开(公告)日：2002-10-29
申请号：US09752811
申请日：2000-12-27
申请人： Khai Minh Le
发明人： Khai Minh Le
IPC分类号： G01N2304
CPC分类号： G01V5/005 , G01N23/04
摘要： A method and apparatus for determining a specified physical characteristic in an object exposes the object to at least two angularly fixed sources of electromagnetic radiation to create projected images of the object. The sources are rotationally scanned about the object so as to oscillate in an angular range about the object. The sources are relatively stationary to one another. A three dimensional reconstructed image of the object based on the projected images of the object is created and examined for a specified physical characteristic in the object.
摘要翻译：用于确定对象中的指定物理特征的方法和装置将对象暴露于至少两个角度固定的电磁辐射源，以产生对象的投影图像。源围绕物体旋转扫描以围绕物体在角度范围内振荡。这些来源相对固定。基于对象的投影图像创建并检查对象中的指定物理特性的对象的三维重建图像。

10. 发明授权

US06459758B1 Method and apparatus for discrete tomography 有权
标题翻译：离散层析成像的方法和装置
公开(公告)号：US06459758B1
公开(公告)日：2002-10-01
申请号：US09137533
申请日：1998-08-21
申请人： David Lee , Yehuda Vardi
发明人： David Lee , Yehuda Vardi
IPC分类号： G01N2304
CPC分类号： G01N23/046 , G01N2223/419
摘要： Discrete tomographic apparatus comprises an electron microscope for irradiating a sample comprising an atomic lattice structure. Line count data is obtained for the main directions of a cross section of the sample. A non-linear programming algorithm is applied to obtain probabilities of occupancy of lattice sites by atoms of the sample. The non-linear programming algorithm comprises an iterative application of the expectation/maximization algorithm upper bounded by the constraint that each variable is valued at less than or equal to one. Once the algorithm is iteratively applied a phantom image of the cross section of the sample is generated. The cross sectional area may be less than one thousand atoms by one thousand atoms.
摘要翻译：离散层析装置包括用于照射包含原子格子结构的样品的电子显微镜。对于样品的横截面的主要方向获得行计数数据。应用非线性规划算法来获得样品原子占据晶格位点的概率。非线性规划算法包括以约束为单位的期望/最大化算法的迭代应用，每个变量的价值小于或等于1。一旦算法被迭代地应用，则生成样本横截面的幻影图像。横截面积可以小于千原子一千个原子。

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