-
1.发明公开公开(公告)号：US20240130700A1
公开(公告)日：2024-04-25
申请号：US17970744
申请日：2022-10-20
发明人： Mathieu PLAMONDON , Balazs NAGY , Mathias LEHMANN , Adam Michal STRZELECKI , Igor PETERLIK , Dieter Marc SEGHERS
IPC分类号： A61B6/00
CPC分类号： A61B6/4085 , A61B6/5282
摘要： A computer-implemented method of reducing scatter in an X-ray projection image of an object, the method comprising: generating an initial X-ray projection image of an object with an imaging beam produced by an imaging system; based on a first transmission indicator for the object and on a second transmission indicator for at least one element of the imaging system, selecting a kernel for convolution of the initial projection image; convolving the initial X-ray projection image with the kernel to generate a scatter component of the initial X-ray projection image; and generating a corrected X-ray projection image by removing the scatter component from the initial X-ray projection image.
-
2.发明公开公开(公告)号：US20240225573A9
公开(公告)日：2024-07-11
申请号：US17970744
申请日：2022-10-21
发明人： Mathieu PLAMONDON , Balazs NAGY , Mathias LEHMANN , Adam Michal STRZELECKI , Igor PETERLIK , Dieter Marc SEGHERS
IPC分类号： A61B6/00
CPC分类号： A61B6/4085 , A61B6/5282
摘要： A computer-implemented method of reducing scatter in an X-ray projection image of an object, the method comprising: generating an initial X-ray projection image of an object with an imaging beam produced by an imaging system; based on a first transmission indicator for the object and on a second transmission indicator for at least one element of the imaging system, selecting a kernel for convolution of the initial projection image; convolving the initial X-ray projection image with the kernel to generate a scatter component of the initial X-ray projection image; and generating a corrected X-ray projection image by removing the scatter component from the initial X-ray projection image.
-
3.发明公开公开(公告)号：US20240130699A1
公开(公告)日：2024-04-25
申请号：US17970741
申请日：2022-10-20
发明人： Mathieu PLAMONDON , Balazs NAGY , Mathias LEHMANN , Adam Michal STRZELECKI , Igor PETERLIK , Dieter Marc SEGHERS
CPC分类号： A61B6/40 , A61B6/03 , A61B6/06 , G01N2223/419
摘要： A computer-implemented method of reducing scatter in an X-ray projection image of an object comprises: generating an initial X-ray projection image with an imaging beam and an X-ray detector; based on a first position in a detector array of the X-ray detector, selecting a first kernel for convolution of a first portion of the initial projection image, wherein the first position corresponds to the first portion of the initial projection image; based on a second position in the detector array of the X-ray detector, selecting a second kernel for convolution of a second portion of the initial projection image, wherein the second position corresponds to the second portion of the initial projection image; convolving the first portion with the first kernel and the second portion with the second kernel to generate a scatter component of the initial X-ray projection image; and generating a corrected X-ray projection image by removing the scatter component from the initial X-ray projection image.
-
4.发明公开公开(公告)号：US20240225572A9
公开(公告)日：2024-07-11
申请号：US17970741
申请日：2022-10-21
发明人： Mathieu PLAMONDON , Balazs NAGY , Mathias LEHMANN , Adam Michal STRZELECKI , Igor PETERLIK , Dieter Marc SEGHERS
CPC分类号： A61B6/40 , A61B6/03 , A61B6/06 , G01N2223/419
摘要： A computer-implemented method of reducing scatter in an X-ray projection image of an object comprises: generating an initial X-ray projection image with an imaging beam and an X-ray detector; based on a first position in a detector array of the X-ray detector, selecting a first kernel for convolution of a first portion of the initial projection image, wherein the first position corresponds to the first portion of the initial projection image; based on a second position in the detector array of the X-ray detector, selecting a second kernel for convolution of a second portion of the initial projection image, wherein the second position corresponds to the second portion of the initial projection image; convolving the first portion with the first kernel and the second portion with the second kernel to generate a scatter component of the initial X-ray projection image; and generating a corrected X-ray projection image by removing the scatter component from the initial X-ray projection image.
-
-
-
搜索结果
4 条记录 (耗时 0.019 秒)
