公开(公告)号：EP3438650A1

公开(公告)日：2019-02-06

申请号：EP17774945.4

申请日：2017-03-27

申请人： Job Corporation

发明人： YAMAKAWA, Tsutomu ,  YAMAMOTO, Shuichiro ,  YAMASAKI, Masashi ,  OKADA, Masahiro

IPC分类号： G01N23/04 ,  G01N23/18

摘要： Circuitry for converting frame data outputted from an obliquely arranged detector, to frame data in a coordinate system for reconstruction is avoided from becoming larger in size and an processing amount is reduced. An X-ray apparatus is provided with a two-dimensional pixel array, the two-dimensional pixel array having a plurality of rectangular pixels, having a predetermined size and outputting an electrical signal in response to an incident X-ray photon. The pixels of the array are arranged in the row and column directions in a first Cartesian coordinate system. The row direction is set obliquely to a scan direction. In this array, when viewing from any one of sides in the scan direction, a pixel group is provided solely or repeatedly, the pixel group being composed of "M columns x N pieces" pixels (M is a positive integer equal to or larger than 1, N is a positive integer equal to or larger than 2, and M and N have a relationship of prime numbers), the group of pixels providing a quadrangle whose diagonal line is parallel with the scan direction. The frame data, outputted at the constant period from the respective pixels, are converted to frame data in a second Cartesian coordinate system configured in a memory space, the second Cartesian coordinate system having a row direction which is set to accord with the scan direction and a column direction orthogonal to the row direction.

公开(公告)号：EP3287774A1

公开(公告)日：2018-02-28

申请号：EP16783207.0

申请日：2016-04-20

申请人： Job Corporation

发明人： YAMAKAWA, Tsutomu ,  YAMAMOTO, Shuichiro ,  OBATA, Yoshiharu ,  YAMASAKI, Masashi ,  OKADA, Masahiro

IPC分类号： G01N23/087 ,  A61B6/00 ,  A61B6/12 ,  A61B6/14 ,  G01N23/04 ,  G01N23/18

摘要： The type and/or properties of a substance is identified highly accurately regardless of the thickness of the substance. A data processing apparatus (12) processes counts detected at each of pixels of a photo counting detector (26) in each of a plurality of energy ranges of X-rays, the X-rays being radiated from an X-ray tube, (21) transmitted through an object. The apparatus (12) includes means (35) calculating an image of the object (OB) based on the counts, and means (35) setting a region of interest on the image. The apparatus (12) further includes means (35) removing, from the pixel, pixel information showing a background present in the region of interest, and means (35) calculating, pixel by pixel, inherent information inherent to the substance, based on the counts detected at each of the respective pixels in each of the energy ranges of the X-rays in the region of interest, the inherent information indicating a transmission characteristic inherent to the X-rays.

摘要翻译： 无论物质的厚度如何，物质的类型和/或性质都能高度准确地识别出来。 数据处理设备（12）处理在X射线的多个能量范围中的每个能量范围中的光电计数检测器（26）的每个像素处检测到的计数，所述X射线是从X射线管辐射的，（21 ）通过物体传输。 装置（12）包括基于计数来计算物体（OB）的图像的装置（35），以及设置图像上的感兴趣区域的装置（35）。 装置（12）还包括从像素中去除表示存在于感兴趣区域中的背景的像素信息的装置（35），以及用于基于该像素逐个像素计算物质固有的固有信息的装置（35） 在感兴趣区域中的X射线的每个能量范围中的每个相应像素处检测到的计数，固有信息指示X射线固有的透射特性。

公开(公告)号：EP3287774B8

公开(公告)日：2020-12-02

申请号：EP16783207.0

申请日：2016-04-20

申请人： Job Corporation

发明人： YAMAKAWA, Tsutomu ,  YAMAMOTO, Shuichiro ,  OBATA, Yoshiharu ,  YAMASAKI, Masashi ,  OKADA, Masahiro

IPC分类号： G01N23/087 ,  A61B6/00 ,  A61B6/12 ,  A61B6/14 ,  G01N23/04 ,  G01N23/18

公开(公告)号：EP3287774B1

公开(公告)日：2020-09-23

申请号：EP16783207.0

申请日：2016-04-20

申请人： Job Corporation

发明人： YAMAKAWA, Tsutomu ,  YAMAMOTO, Shuichiro ,  OBATA, Yoshiharu ,  YAMASAKI, Masashi ,  OKADA, Masahiro

IPC分类号： G01N23/087 ,  A61B6/00 ,  A61B6/12 ,  A61B6/14 ,  G01N23/04 ,  G01N23/18

公开(公告)号：EP3098594A1

公开(公告)日：2016-11-30

申请号：EP15741002.8

申请日：2015-01-23

申请人： Job Corporation

发明人： YAMAKAWA, Tsutomu ,  YAMAMOTO, Shuichiro ,  YAMASAKI, Masashi

IPC分类号： G01N23/04 ,  A61B6/02 ,  G01T7/00

CPC分类号： G01N23/046 ,  A61B6/02 ,  A61B6/12 ,  A61B6/14 ,  G01N23/044 ,  G01N2223/401 ,  G01N2223/619 ,  G01N2223/643

摘要： Foreign matter present inside an object and the like are detected with higher resolution and higher reliability. Frame data of a plurality of tomographic planes that are parallel in the scan direction and set in a space between an X-ray tube (31 and an X-ray detecting unit (22) is generated based on detected frame data. The generation of frame data is performed based on the fan-shaped spreading of an X-ray beam and the differences in position in a height direction between the plurality of tomographic planes from a detection surface. Tomographic images are respectively generated from the frame data of the plurality of tomographic planes based on a laminography technique. Edge information based on the changes in pixel values in each tomographic image is calculated for each pixel. A three-dimensional distribution of the edge information is generated. A search is performed on the edge information in a direction passing through the plurality of tomographic planes. As a result of the search, pixels indicating a maximum value in the edge information are detected. Only pixels in the plurality of tomographic images that positionally correspond to the detected pixels are combined into a single composite image.

摘要翻译： 以更高的分辨率和更高的可靠性检测物体内存在的异物。 基于检测到的帧数据，生成沿X射线管（31和X射线检测部22）之间的扫描方向并行设置的多个断层图像的帧数据，生成帧 基于X射线束的扇形扩展和来自检测面的多个断层图像之间的高度方向上的位置差异进行数据，分别从多个断层图像的帧数据生成断层图像 基于层析技术的平面，针对每个像素计算基于每个断层图像中的像素值的变化的边缘信息，生成边缘信息的三维分布，沿着通过的方向对边缘信息执行搜索 通过多个断层摄影平面，作为搜索结果，检测出表示边缘信息中的最大值的像素，只有多个断层扫描中的像素 与检测到的像素对应的hic图像被组合成单个合成图像。