公开(公告)号：US09619889B2

公开(公告)日：2017-04-11

申请号：US14520190

申请日：2014-10-21

Applicant: General Electric Company

Inventor： Brian Edward Nett ,  Chuang Miao

IPC: G06K9/00 ,  G06T7/00 ,  A61B19/00 ,  A61B6/00 ,  G06T5/00

CPC classification number: G06T7/12 ,  A61B6/481 ,  A61B6/52 ,  A61B6/5258 ,  A61B34/10 ,  A61B90/37 ,  A61B2090/374 ,  A61B2090/3764 ,  A61B2090/378 ,  A61B2576/00 ,  G06T5/008 ,  G06T7/11 ,  G06T2207/10081

Abstract: Various methods and systems are provided for correcting contrast banding artifacts across multiple acquisitions in reconstructed images. In one embodiment, a method for computed tomography imaging comprises generating an original image comprising multiple subvolumes, segmenting the original image into different structures for each subvolume, selectively applying a mask-based correction through each area of subvolume that includes continuous structures to generate an updated image, and performing streak correction between the original image and the updated image to generate a final image. In this way, image quality may be improved without adjusting anatomical structures in an image.

公开(公告)号：US20160110892A1

公开(公告)日：2016-04-21

申请号：US14520190

申请日：2014-10-21

Applicant: General Electric Company

Inventor： Brian Edward Nett ,  Chuang Miao

IPC: G06T11/00 ,  A61B6/00 ,  G06T7/00 ,  A61B19/00

CPC classification number: G06T7/12 ,  A61B6/481 ,  A61B6/52 ,  A61B6/5258 ,  A61B34/10 ,  A61B90/37 ,  A61B2090/374 ,  A61B2090/3764 ,  A61B2090/378 ,  A61B2576/00 ,  G06T5/008 ,  G06T7/11 ,  G06T2207/10081

Abstract: Various methods and systems are provided for correcting contrast banding artifacts across multiple acquisitions in reconstructed images. In one embodiment, a method for computed tomography imaging comprises generating an original image comprising multiple subvolumes, segmenting the original image into different structures for each subvolume, selectively applying a mask-based correction through each area of subvolume that includes continuous structures to generate an updated image, and performing streak correction between the original image and the updated image to generate a final image. In this way, image quality may be improved without adjusting anatomical structures in an image.

Abstract translation: 提供了各种方法和系统，用于在重建图像中的多次采集中校正对比度条带伪影。 在一个实施例中，一种用于计算机断层摄影成像的方法包括：生成包括多个子体积的原始图像，将原始图像分割成每个子体积的不同结构，通过包括连续结构的子体积的每个区域选择性地应用基于掩码的校正，以生成更新的 图像和在原始图像和更新图像之间执行条纹校正以生成最终图像。 以这种方式，可以在不调整图像中的解剖结构的情况下改善图像质量。