公开(公告)号：US11055884B2

公开(公告)日：2021-07-06

申请号：US16757224

申请日：2018-10-16

Applicant: RaySearch Laboratories AB

Inventor： Sebastian Andersson ,  Rasmus Nilsson ,  Erik Traneus

IPC: G06T11/00 ,  G16H20/40 ,  G16H50/70 ,  G16H30/40 ,  G06F16/53 ,  A61B6/03 ,  A61B6/00 ,  A61N5/10 ,  G06T7/00

Abstract: A method of correcting a first CT image for shading artefacts using another CT image as reference, comprising the steps of creating a difference image between the images and a correction map based on the difference image. The correction map is used to correct the first CT image. A method of converting a CT image to the value range of another CT image is also disclosed.