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1.发明申请MULTI-ENERGY RADIOGRAPHIC SYSTEM FOR ESTIMATING EFFECTIVE ATOMIC NUMBER USING MULTIPLE RATIOS 审中-公开使用多重比例估计有效原子数的多功能放射性系统公开(公告)号：US20090052762A1
公开(公告)日：2009-02-26
申请号：US12129371
申请日：2008-05-29
申请人： Peter Dugan , Robert L. Finch , John M. Munley , David M. Asner , Christopher W. Peters , Kenei Suntarat , David M. Brown , Shawn Locke
发明人： Peter Dugan , Robert L. Finch , John M. Munley , David M. Asner , Christopher W. Peters , Kenei Suntarat , David M. Brown , Shawn Locke
IPC分类号： G06K9/00
CPC分类号： G01N23/06 , G06K9/6263
摘要： A method of determining an effective atomic number, Zeff, of an object may include obtaining a plurality of radiographic images of the object. Each radiographic image can be obtained using a different independent X-ray energy level. An intensity value for each pixel in a region of interest in each radiographic image can be determined. A plurality of measured ratios, R, can be formed using attenuation coefficients from a pair of different radiographic images. At least one adjusted measured ratio, Rm, can be calculated based on the plurality of measured ratios, R, and at least one corresponding estimation coefficient, α. Zeff values can be assigned based on a comparison of the at least one adjusted measured ratio, Rm to a material attenuation database.
摘要翻译： 确定对象的有效原子序数Zeff的方法可以包括获得对象的多个放射照相图像。 可以使用不同的独立X射线能量水平获得每个放射照相图像。 可以确定每个放射线照相图像中的感兴趣区域中的每个像素的强度值。 可以使用来自一对不同放射照相图像的衰减系数来形成多个测量的比率R。 可以基于多个测量的比率R和至少一个对应的估计系数αα来计算至少一个调整的测量比率R m。 可以基于至少一个经调整的测量比率Rm与材料衰减数据库的比较来分配Zeff值。
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公开(公告)号：US20090052622A1
公开(公告)日：2009-02-26
申请号：US12129055
申请日：2008-05-29
申请人： Peter Dugan , Robert L. Finch , Shawn Locke , Gregory Reyner , John M. Munley , Kenei Suntarat
发明人： Peter Dugan , Robert L. Finch , Shawn Locke , Gregory Reyner , John M. Munley , Kenei Suntarat
IPC分类号： G01N23/04
CPC分类号： G01N23/06 , G06K9/6263
摘要： A method for automatically detecting nuclear material using radiographic images of a cargo container includes receiving a plurality of radiographic images of the cargo container and aligning the plurality of images with respect to each other to produce registered images. The method also includes segmenting the registered images using the atomic number and other edge/texture information in order to locate one or more regions of interest within the registered images and estimating atomic number information for each of a predetermined number of portions of the registered images. The method includes assigning a threat level and a confidence value to regions of interest identified as a potential threat and evaluating the regions of interest identified as potential threats using material context information and adjusting, based on the evaluation, the threat level values and confidences of the regions of interest identified as potential threats. The method also includes providing the regions of interest and adjusted threat level and confidence values as output to an operator station.
摘要翻译： 使用货物集装箱的放射线图像自动检测核材料的方法包括：接收货物集装箱的多个放射照相图像并使多个图像相对于彼此对准以产生已注册的图像。 该方法还包括使用原子序号和其他边缘/纹理信息分割注册的图像，以便在注册的图像内定位一个或多个感兴趣的区域，并且为登记图像的预定数量的部分中的每一个估计原子序号信息。 该方法包括将威胁级别和置信度值分配给识别为潜在威胁的兴趣区域，并且使用材料上下文信息来评估被识别为潜在威胁的兴趣区域，并且基于评估调整威胁级别值和信任度 感兴趣的地区被认为是潜在的威胁。 该方法还包括将感兴趣区域和经调整的威胁级别和置信度值提供给操作员站的输出。
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公开(公告)号：US20090003651A1
公开(公告)日：2009-01-01
申请号：US12129036
申请日：2008-05-29
IPC分类号： G06K9/00
CPC分类号： G01N23/06 , G06K9/6263
摘要： A system for segmenting radiographic images of a cargo container can include an object segmentation recognition module adapted to perform a series of functions. The functions can include receiving a plurality of radiographic images of a cargo container, each image generated using a different energy level and segmenting each of the radiographic images using one or more segmentation modules to generate segmentation data representing one or more image segments. The functions can also include identifying image layers within the radiographic images using a plurality of layer analysis modules by providing the plurality of radiographic images and the segmentation data as input to the layer analysis modules, and determining adjusted atomic number values for an atomic number image based on the image layers. The functions can include adjusting the atomic number image based on the adjusted atomic number values for the regions of interest to generate an adjusted atomic number image and identifying regions of interest within the adjusted atomic number image based on an image characteristic. The functions can also include providing coordinates of each region of interest and the adjusted atomic number image as output.
摘要翻译： 用于分割货物集装箱的放射照相图像的系统可以包括适于执行一系列功能的物体分割识别模块。 这些功能可以包括接收货物集装箱的多个放射照相图像，使用不同的能量级别生成每个图像，并使用一个或多个分割模块分割每个放射线照相图像，以产生表示一个或多个图像片段的分割数据。 这些功能还可以包括通过提供多个放射照相图像和分割数据作为层分析模块的输入，并使用多个层分析模块来确定放射照相图像内的图像层，并确定基于原子序数图像的调整的原子序数值 在图像层上。 这些功能可以包括基于所感兴趣区域的经调整的原子序数值来调整原子序数图像，以产生经调整的原子序数图像，并且基于图像特征来识别调整后的原子序数图像内的感兴趣区域。 这些功能还可以包括提供每个感兴趣区域的坐标和调整后的原子序数图像作为输出。
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4.发明申请Arbitration system for determining the orientation of an envelope from a plurality of classifiers 审中-公开用于确定来自多个分类器的信封的取向的仲裁系统公开(公告)号：US20080008378A1
公开(公告)日：2008-01-10
申请号：US11482421
申请日：2006-07-07
CPC分类号： G06K9/2054 , G06K9/3208 , G06K9/6292
摘要： Systems and methods are provided for determining the orientation of an envelope. A plurality of classification elements are each operative to analyze at least one image of the envelope and produce at least one output value indicative of the orientation of the envelope. An arbitrator determines an associated orientation for the envelope according to the plurality of output values provided by the plurality of classification elements.
摘要翻译： 提供了系统和方法来确定信封的方向。 多个分类元件各自用于分析信封的至少一个图像并且产生指示信封的取向的至少一个输出值。 仲裁者根据由多个分类元素提供的多个输出值来确定信封的相关定向。
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5.发明申请System and method for real-time determination of the orientation of an envelope 审中-公开用于实时确定信封方向的系统和方法公开(公告)号：US20080008379A1
公开(公告)日：2008-01-10
申请号：US11482561
申请日：2006-07-07
CPC分类号： G06K9/2054 , G06K9/3208 , G06K9/4647
摘要： A system for recognizing and identifying postal indicia on an envelope. This includes an image acquisition element that acquires a first image, representing a first side of the envelope, and a second image, representing a second side of the envelope. A feature extractor, for each of the first and second image, extracts a plurality of numerical feature values from each image as respective first and second feature vectors that represent the envelope. An orientation classification element classifies the envelope into one of a plurality of output classes representing a plurality of possible orientations according to the first and second feature vectors.
摘要翻译： 用于在信封上识别和识别邮戳的系统。 这包括图像获取元件，其获取代表信封的第一侧的第一图像和表示信封的第二侧的第二图像。 对于第一和第二图像中的每一个，特征提取器从每个图像提取多个数字特征值作为表示包络的相应的第一和第二特征向量。 方向分类元件根据第一和第二特征向量将包络分类为表示多个可能取向的多个输出类中的一个。
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公开(公告)号：US20080008376A1
公开(公告)日：2008-01-10
申请号：US11482386
申请日：2006-07-07
CPC分类号： G06K9/2054 , G06K9/00463 , G06K9/4647
摘要： A system is presented for recognizing and identifying postal indicia on an envelope. The system includes an image acquisition element that acquires at least one binarized image of an envelope and isolates at least one region of interest from the at least one image. A candidate locator attempts to locate at least one candidate object within the at least one region of interest according to the distribution of dark pixels within the at least one region of interest. A feature extractor extracts an associated set of numerical feature values from each of the at least one candidate object. A classification element classifies each candidate object according to its associated set of numerical feature values.
摘要翻译： 提供一个系统，用于识别和识别信封上的邮戳。 该系统包括图像采集元件，其获取包络的至少一个二值化图像，并且从至少一个图像隔离至少一个感兴趣区域。 候选定位器尝试根据感兴趣的至少一个区域内的暗像素的分布来在至少一个感兴趣区域内定位至少一个候选对象。 特征提取器从所述至少一个候选对象中的每一个提取相关联的一组数值特征值。 分类元素根据其相关的数字特征值集合对每个候选对象进行分类。
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公开(公告)号：US20080008377A1
公开(公告)日：2008-01-10
申请号：US11482418
申请日：2006-07-07
CPC分类号： G06K9/2063 , G06K9/4642
摘要： A system is presented for recognizing and identifying postal indicia on an envelope. The system includes an image acquisition element that acquires a first image, representing a first side of the envelope, and a second image, representing a second side of the envelope, and generates first and second candidate images from respective opposing corners of the first image and third and fourth candidate images from respective opposing corners of the second image. A feature extractor that, for each candidate image, divides the candidate image into a plurality of regions, extracts a plurality of numerical feature values from each of the plurality of regions, and recombines the plurality of feature values into a feature vector that represents the image. A classification element classifies the image into one of a plurality of output classes representing various types of postal indicia according to the numerical feature vector.
摘要翻译： 提供一个系统，用于识别和识别信封上的邮戳。 该系统包括图像获取元件，其获取表示包络的第一侧的第一图像和表示包络的第二侧的第二图像，并且从第一图像的相应相对角度生成第一和第二候选图像，以及 第三图像和第四候选图像。 一种特征提取器，对于每个候选图像，将候选图像分割成多个区域，从多个区域中的每个区域提取多个数值特征值，并将多个特征值重新组合成表示图像的特征向量 。 分类元素根据数字特征向量将图像分类成代表各种类型的邮戳的多个输出类别之一。
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