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    METHOD AND SYSTEM FOR IDENTIFYING DEFECTS IN A RADIOGRAPHIC IMAGE OF A SCANNED OBJECT
    1.
    发明申请
    METHOD AND SYSTEM FOR IDENTIFYING DEFECTS IN A RADIOGRAPHIC IMAGE OF A SCANNED OBJECT 有权
    用于识别扫描对象的放射图像中的缺陷的方法和系统

    公开(公告)号：US20090097729A1

    公开(公告)日：2009-04-16

    申请号：US11872190

    申请日：2007-10-15

    申请人： Rajashekar Venkatachalam ,  Manoharan Venugopal ,  Megha Navalgund ,  Gokul Swamy

    发明人： Rajashekar Venkatachalam ,  Manoharan Venugopal ,  Megha Navalgund ,  Gokul Swamy

    IPC分类号： G06K9/00

    CPC分类号： G06K9/00 ,  G06T7/0004

    摘要： A method for processing a radiographic image of a scanned object is provided. The method comprises acquiring radiographic image data corresponding to a scanned object and identifying one or more regions of interest in the radiographic image data corresponding to the scanned object. The method further comprises performing an image-contrast comparison of the radiographic image data corresponding to the scanned object and one or more reference radiographic images, to identify one or more defects in the radiographic image data corresponding to the scanned object.

    摘要翻译： 提供了一种用于处理扫描对象的放射线图像的方法。 该方法包括获取与扫描对象相对应的放射线图像数据，并识别与扫描对象相对应的放射照相图像数据中的一个或多个感兴趣区域。 该方法还包括执行与扫描对象相对应的放射线照相图像数据和一个或多个参考放射线照相图像的图像对比度比较，以识别与扫描对象相对应的放射照相图像数据中的一个或多个缺陷。

    APPARATUS AND SYSTEM FOR INSPECTING STRUCTURES
    2.
    发明申请
    APPARATUS AND SYSTEM FOR INSPECTING STRUCTURES 有权
    检查结构的装置和系统

    公开(公告)号：US20130181136A1

    公开(公告)日：2013-07-18

    申请号：US13351876

    申请日：2012-01-17

    申请人： Rajashekar Venkatachalam ,  Christopher Jay Morse ,  Daniel Jay Scoville

    发明人： Rajashekar Venkatachalam ,  Christopher Jay Morse ,  Daniel Jay Scoville

    IPC分类号： G01T1/20

    CPC分类号： G01T1/20 ,  G01N23/04 ,  G01N2223/311 ,  G01N2223/628

    摘要： This disclosure describes an apparatus and a system for inspection of deepwater assets, e.g., pipes and pipelines that traverse the ocean floor. In one embodiment, the apparatus includes a housing that retains a compensation fluid therein to form a fluidic environment. A digital detector resides in the fluidic environment. The digital detector can generate digital images in response to radiation that penetrate though the deepwater asset and impinges on components of the digital detector. In one embodiment, the digital detector utilizes one or more seal members to secure the components together. The seal members may be permeable and/or impermeable to the compensation fluid thereby preventing and/or permitting migration of the compensation fluid between certain components of the digital detector.

    摘要翻译： 本公开描述了用于检查深水资产的装置和系统，例如穿过海底的管道和管道。 在一个实施例中，该装置包括将补偿流体保持在其中以形成流体环境的壳体。 数字检测器位于流体环境中。 数字检测器可以响应穿透深水资源并撞击数字检测器的部件的辐射而产生数字图像。 在一个实施例中，数字检测器利用一个或多个密封构件将部件固定在一起。 密封构件可以是补偿流体的可渗透和/或不可渗透的，从而防止和/或允许补偿流体在数字检测器的某些部件之间迁移。

    Apparatus and system for inspecting structures
    7.
    发明授权
    Apparatus and system for inspecting structures 有权
    用于检查结构的装置和系统

    公开(公告)号：US08822932B2

    公开(公告)日：2014-09-02

    申请号：US13351876

    申请日：2012-01-17

    申请人： Daniel Jay Scoville ,  Rajashekar Venkatachalam ,  Christopher Jay Morse

    发明人： Daniel Jay Scoville ,  Rajashekar Venkatachalam ,  Christopher Jay Morse

    IPC分类号： G01T1/161

    CPC分类号： G01T1/20 ,  G01N23/04 ,  G01N2223/311 ,  G01N2223/628

    摘要： This disclosure describes an apparatus and a system for inspection of deepwater assets, e.g., pipes and pipelines that traverse the ocean floor. In one embodiment, the apparatus includes a housing that retains a compensation fluid therein to form a fluidic environment. A digital detector resides in the fluidic environment. The digital detector can generate digital images in response to radiation that penetrate though the deepwater asset and impinges on components of the digital detector. In one embodiment, the digital detector utilizes one or more seal members to secure the components together. The seal members may be permeable and/or impermeable to the compensation fluid thereby preventing and/or permitting migration of the compensation fluid between certain components of the digital detector.

    摘要翻译： 本公开描述了用于检查深水资产的装置和系统，例如穿过海底的管道和管道。 在一个实施例中，该装置包括将补偿流体保持在其中以形成流体环境的壳体。 数字检测器位于流体环境中。 数字检测器可以响应穿透深水资源并撞击数字检测器的部件的辐射而产生数字图像。 在一个实施例中，数字检测器利用一个或多个密封构件将部件固定在一起。 密封构件可以是补偿流体的可渗透和/或不可渗透的，从而防止和/或允许补偿流体在数字检测器的某些部件之间迁移。

    Method and system for identifying defects in a radiographic image of a scanned object
    8.
    发明授权
    Method and system for identifying defects in a radiographic image of a scanned object 有权
    用于识别扫描对象的放射照相图像中的缺陷的方法和系统

    公开(公告)号：US08204291B2

    公开(公告)日：2012-06-19

    申请号：US11872190

    申请日：2007-10-15

    申请人： Rajashekar Venkatachalam ,  Manoharan Venugopal ,  Megha Navalgund ,  Gokul Swamy

    发明人： Rajashekar Venkatachalam ,  Manoharan Venugopal ,  Megha Navalgund ,  Gokul Swamy

    IPC分类号： G06K9/03

    CPC分类号： G06K9/00 ,  G06T7/0004

    摘要： A method for processing a radiographic image of a scanned object is provided. The method comprises acquiring radiographic image data corresponding to a scanned object and identifying one or more regions of interest in the radiographic image data corresponding to the scanned object. The method further comprises performing an image-contrast comparison of the radiographic image data corresponding to the scanned object and one or more reference radiographic images, to identify one or more defects in the radiographic image data corresponding to the scanned object.

    摘要翻译： 提供了一种用于处理扫描对象的放射线图像的方法。 该方法包括获取与扫描对象相对应的放射线图像数据，并识别与扫描对象相对应的放射照相图像数据中的一个或多个感兴趣区域。 该方法还包括执行与扫描对象相对应的放射线照相图像数据和一个或多个参考放射线照相图像的图像对比度比较，以识别与扫描对象相对应的放射照相图像数据中的一个或多个缺陷。

    Converting a digital radiograph to an absolute thickness map
    10.
    发明授权
    Converting a digital radiograph to an absolute thickness map 有权
    将数字X射线照片转换为绝对厚度图

    公开(公告)号：US07480363B2

    公开(公告)日：2009-01-20

    申请号：US11108498

    申请日：2005-04-18

    申请人： Brian W. Lasiuk ,  Thomas J. Batzinger ,  Manoharan Venugopal ,  Elizabeth L. Dixon ,  Michael R. Hopple ,  Nityanand Gopalika ,  Sivaramanivas Ramaswamy ,  Debasish Mishra ,  Rajashekar Venkatachalam ,  Vamishi Krishna Reddy Kommareddy

    发明人： Brian W. Lasiuk ,  Thomas J. Batzinger ,  Manoharan Venugopal ,  Elizabeth L. Dixon ,  Michael R. Hopple ,  Nityanand Gopalika ,  Sivaramanivas Ramaswamy ,  Debasish Mishra ,  Rajashekar Venkatachalam ,  Vamishi Krishna Reddy Kommareddy

    IPC分类号： G01B15/02

    CPC分类号： G01B15/025

    摘要： A digital radiography imaging system for acquiring digital images of an object, and a method for transforming digital images into an absolute thickness map characterizing the object under inspection. The system includes a radiation source for directing radiation through a desired region of the object, and a radiation detector having a plurality of sensing elements for detecting radiation passing through the object. Numerical data generated from each sensing element is calibrated, for example by correcting for variations in radiation paths between the source and detector, by correcting for variations in the spatial frequency response (MTF) of the detector, by correcting for variations in the geometric profile of the object under inspection, and by correcting for material contained in and/or around the object. The calibrated data is processed in order to generate and display an absolute thickness map of the object. The calibration procedures are adapted for extracting a thickness map from both isotope sources and X-ray tube sources.

    摘要翻译： 一种用于获取对象的数字图像的数字放射线照相成像系统，以及将数字图像转换为表征检查对象的绝对厚度图的方法。 该系统包括用于引导辐射通过物体的期望区域的辐射源，以及具有用于检测通过物体的辐射的多个感测元件的辐射检测器。 通过校正检测器的空间频率响应（MTF）的变化，通过校正各个感测元件的几何轮廓的变化来校正每个感测元件产生的数值数据，例如通过校正源和检测器之间的辐射路径的变化 被检查物体，以及通过校正物体中和/或周围的物质。 对校准后的数据进行处理，以生成和显示对象的绝对厚度图。 校准程序适用于从同位素源和X射线管源提取厚度图。