US 11,842,427 B2
Method and system of motion correction for magnetic resonance imaging
Kamlesh Pawar, Clayton (AU); Zhaolin Chen, Clayton (AU); Nadim Joni Shah, Clayton (AU); and Gary Francis Egan, Clayton (AU)
Assigned to Monash University
Appl. No. 17/055,504
Filed by MONASH UNIVERSITY, Clayton (AU)
PCT Filed May 14, 2019, PCT No. PCT/AU2019/050447
§ 371(c)(1), (2) Date Nov. 13, 2020,
PCT Pub. No. WO2019/218000, PCT Pub. Date Nov. 21, 2019.
Claims priority of application No. 2018901688 (AU), filed on May 15, 2018.
Prior Publication US 2021/0225047 A1, Jul. 22, 2021
Int. Cl. G06T 11/00 (2006.01); G06T 7/246 (2017.01); A61B 5/055 (2006.01); A61B 5/00 (2006.01); G01R 33/48 (2006.01); G01R 33/565 (2006.01); G06T 7/00 (2017.01)
CPC G06T 11/008 (2013.01) [A61B 5/055 (2013.01); A61B 5/7207 (2013.01); A61B 5/7267 (2013.01); G01R 33/4818 (2013.01); G01R 33/56509 (2013.01); G06T 7/0012 (2013.01); G06T 7/246 (2017.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/20201 (2013.01); G06T 2207/30004 (2013.01); G06T 2207/30168 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for reducing or removing motion artefacts in magnetic resonance (MR) images, the method including the steps of:
receiving a motion corrupted MR image;
determining a corrected intensity value for each pixel in the motion corrupted MR image by using a neural network; and
generating a motion corrected MR image based at least in part on the determined corrected intensity values for the pixels in the motion corrupted MR image;
wherein determining the corrected intensity value for each pixel in the motion corrupted MR image includes:
classifying intensity of each pixel in the motion corrupted MR image to one of a plurality of predetermined quantized values of intensity by using the neural network, the corrected intensity value of each pixel being the corresponding classified quantized values of intensity.