System and method for image correction

A system, comprising:

• at least one storage device including a set of instructions for image correction;
• 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 configured to cause the system to perform operations including:
• receiving an original image including a metal artifact resulted from a metal object;
• pre-correcting the original image to generate pre-corrected projection data;
• determining a plurality of weighting coefficients based on a feature of the metal object, wherein at least one of the plurality of weighting coefficients is related to the original image, at least another one of the plurality of weighting coefficients is related to the pre-corrected projection data;
• and
• generating a corrected image based on the original image, the pre-corrected projection data, and the plurality of weighting coefficients.

A non-transitory computer readable medium, comprising executable instructions that, when executed by at least one processor, direct the at least one processor to perform a method, the method comprising:

• receiving an original image including a metal artifact resulted from a metal object;
• pre-correcting the original image;
• generating correction data based on the original image and the pre-corrected image;
• weighting the original image and the pre-corrected image based on the correction data and a regularity degree of the metal artifact, wherein the regularity degree of the metal artifact is associated with a shape of the metal object;
• and
• generating a corrected image based on the weighting, including:
• determining a plurality of weighting coefficients, the plurality of weighting coefficients being adjusted based on a weighting intensity, the weighting intensity being related to the regularity degree of the metal artifact;
• and
• generating the corrected image based on the correction data and the plurality of weighting coefficients.