公开(公告)号：US20170256076A1

公开(公告)日：2017-09-07

申请号：US15507077

申请日：2015-07-31

Applicant: General Electric Company

Inventor： Ming Yan ,  Kun Tao ,  Hao Xu

IPC: G06T11/00 ,  A61B6/03 ,  A61B6/00 ,  G06T7/00

CPC classification number: G06T11/005 ,  A61B6/032 ,  A61B6/5205 ,  G06T7/0012 ,  G06T2207/10081

Abstract: Embodiments of the present invention disclose a method for removing streaks from detector cells with performance difference, specifically a method for removing streaks from detector cells with performance difference and streaks caused by other reasons. The method comprises: estimating a projection on a detector cell with performance difference for each of one or more views; reconstructing one or more initial images with the estimated projection on the detector cell with performance difference for each view; estimating a projection error on the detector cell with performance difference for each view from the reconstructed one or more initial images having streaks; and reconstructing one or more output images with the estimated projection error on the detector cell with performance difference for each view to remove the streaks from the reconstructed one or more output images, improving quality of CT reconstructed images.

公开(公告)号：US20170181725A1

公开(公告)日：2017-06-29

申请号：US15380493

申请日：2016-12-15

Applicant: General Electric Company

Inventor： Xiaodong Han ,  Menachem Halmann ,  Kun Tao ,  Zhenyu Liu ,  Gang Cheng ,  Dongqing Chen ,  Hong Wang

IPC: A61B8/08 ,  A61B8/06 ,  A61B8/00

CPC classification number: A61B8/0875 ,  A61B8/4218 ,  A61B8/4281 ,  A61B8/4488 ,  A61B8/483 ,  A61B8/488 ,  A61B8/54

Abstract: An ultrasound imaging system includes a scanning assembly, a three-dimensional (3D) image acquisition device, and a controller. The scanning assembly is configured to receive a hand or foot and includes a transducer array and an acoustic coupling fluid. The 3D image acquisition device is configured for obtaining a 3D image of the hand or foot. The controller is configured for automatically adjusting direction or orientation of the transducer array with respect to the hand or foot based on the 3D image of the hand or foot.