US 12,279,902 B2
Suppression of motion artifacts in computed tomography imaging
Gilad Shechter, Haifa (IL); and Liran Goshen, Pardes-Hanna (IL)
Assigned to KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Appl. No. 17/916,959
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Apr. 6, 2021, PCT No. PCT/EP2021/058829
§ 371(c)(1), (2) Date Oct. 4, 2022,
PCT Pub. No. WO2021/204737, PCT Pub. Date Oct. 14, 2021.
Claims priority of application No. 20168618.5 (EP), filed on Apr. 8, 2020.
Prior Publication US 2023/0148983 A1, May 18, 2023
Int. Cl. A61B 6/00 (2024.01); A61B 6/03 (2006.01); G06T 5/70 (2024.01); G06T 11/00 (2006.01)
CPC A61B 6/5264 (2013.01) [A61B 6/032 (2013.01); G06T 5/70 (2024.01); G06T 11/008 (2013.01); G06T 2207/10081 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A system for motion artifact reduction in X-ray imaging, comprising:
one or more input interfaces for receiving a first input image of an object reconstructed from a first set of projection data, and a second input image of the object reconstructed from a second set of projection data, the second set being smaller than the first set;
a motion analyzer configured to establish an estimate for motion corruption based on the two input images; and
a selective combiner configured to compute an image value for an enhanced image based on the motion estimate and image information in the first input image and/or the second input image, wherein the selective combiner is configured to combine the image information from either one or both of the input images such that a relative contribution of image information from the two input images varies with the motion estimate.