公开(公告)号：US20170294001A1

公开(公告)日：2017-10-12

申请号：US15481191

申请日：2017-04-06

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Zhaoxia Zhang ,  Kun Tao ,  Xiao Xuan ,  Ming Yan ,  Han Kang

IPC: G06T5/00 ,  G06T5/10

CPC classification number: G06T5/005 ,  G06T5/10 ,  G06T2207/10116

Abstract: The present disclosure discloses a method for reducing ringing artifacts in an X-ray image, comprising: acquiring an X-ray image by scanning an object, wherein the X-ray image comprises grid line artifacts; applying a first bandwidth filter and a second bandwidth filter respectively to the X-ray image so as to obtain a filtered first image and a filtered second image, wherein the first bandwidth filter and the second bandwidth have different bandwidths; constructing a weighting map according to the X-ray image; and fusing the filtered first image and the filtered second image with the weighting map so as to obtain an output image. The present disclosure also discloses a system using the above method.

公开(公告)号：US10297010B2

公开(公告)日：2019-05-21

申请号：US15459701

申请日：2017-03-15

Applicant: General Electric Company

Inventor： Zhaoxia Zhang ,  Kun Tao ,  Hao Lai ,  Ming Yan ,  Han Kang

IPC: G06T5/00 ,  G06T5/20 ,  G06T5/50 ,  G06K9/62 ,  G06T5/10 ,  G06T11/60 ,  G06T7/13

Abstract: A method for reducing grid line artifacts in an X-ray image is disclosed, which includes acquiring an X-ray image by scanning an object, wherein the X-ray image comprises grid line artifacts; decomposing the X-ray image into a high frequency image and a low frequency image, wherein the high frequency image comprises the grid line artifacts; filtering the high frequency image to reduce the grid line artifacts in the high frequency image so as to obtain a filtered high frequency image; and combining the filtered high frequency image with the low frequency image to reconstruct an output image. A system adopting the above method is also disclosed.

公开(公告)号：US10373296B2

公开(公告)日：2019-08-06

申请号：US15481191

申请日：2017-04-06

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Zhaoxia Zhang ,  Kun Tao ,  Xiao Xuan ,  Ming Yan ,  Han Kang

IPC: G06T5/00 ,  G06T5/10

Abstract: The present disclosure discloses a method for reducing ringing artifacts in an X-ray image, comprising: acquiring an X-ray image by scanning an object, wherein the X-ray image comprises grid line artifacts; applying a first bandwidth filter and a second bandwidth filter respectively to the X-ray image so as to obtain a filtered first image and a filtered second image, wherein the first bandwidth filter and the second bandwidth have different bandwidths; constructing a weighting map according to the X-ray image; and fusing the filtered first image and the filtered second image with the weighting map so as to obtain an output image. The present disclosure also discloses a system using the above method.

公开(公告)号：US20170270640A1

公开(公告)日：2017-09-21

申请号：US15459701

申请日：2017-03-15

Applicant: General Electric Company

Inventor： Zhaoxia Zhang ,  Kun Tao ,  Hao Lai ,  Ming Yan ,  Han Kang

IPC: G06T5/00 ,  G06T5/20 ,  G06T5/50 ,  G06K9/62 ,  G06T5/10 ,  G06T11/60 ,  G06T7/13

CPC classification number: G06T5/001 ,  G06K9/6212 ,  G06T5/10 ,  G06T5/20 ,  G06T5/50 ,  G06T7/13 ,  G06T11/60 ,  G06T2207/10116 ,  G06T2207/20221 ,  G06T2207/20224

Abstract: A method for reducing grid line artifacts in an X-ray image is disclosed, which includes acquiring an X-ray image by scanning an object, wherein the X-ray image comprises grid line artifacts; decomposing the X-ray image into a high frequency image and a low frequency image, wherein the high frequency image comprises the grid line artifacts; filtering the high frequency image to reduce the grid line artifacts in the high frequency image so as to obtain a filtered high frequency image; and combining the filtered high frequency image with the low frequency image to reconstruct an output image. A system adopting the above method is also disclosed.