| CPC G06T 11/003 (2013.01) [G06T 5/50 (2013.01); G06T 7/0014 (2013.01); G06T 2207/10088 (2013.01)] | 18 Claims |
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1. A system, comprising:
at least one storage device including a set of instructions; and
at least one processor in communication with the at least one storage device, wherein when executing the set of instructions, the at least one processor is directed to cause the system to perform operations including:
obtaining a plurality of sets of image data of a subject acquired by a magnetic resonance (MR) scanner, each set of the plurality of sets of image data being acquired from a channel corresponding to a coil unit of a coil array of the MR scanner;
obtaining a set of reference image data of the subject;
for each set of the plurality of sets of image data,
determining a phase shift between the set of reference image data and the set of image data using a cross-correlation algorithm, including:
determining a cross-correlation coefficient between the set of reference image data and the set of image data using the cross-correlation algorithm; and
designating a value of the cross-correlation coefficient divided by a magnitude of the cross-correlation coefficient as the phase shift between the set of reference image data and the set of image data; and
obtaining, based on the phase shift, a set of corrected image data of the channel by performing a phase correction for the set of image data;
determining, based on a plurality of sets of corrected image data of
the subject, target image data of the subject; and
reconstructing, based on the target image data of the subject, a target image of the subject.
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