System and method for removing hard tissue in CT image

A method, for CT image reconstruction, implemented on a computing device having at least one processor, at least one computer-readable storage medium, the method comprising:

• obtaining a raw data set related to an object;
• generating a first image set based on the raw data set, wherein the first image set includes a first full quality image and a first max field of view image;
• generating one or more reference images based on the first max field of view image;
• generating a second image set based on the raw data set, wherein the second image set includes a second full quality image;
• generating a second bone information image based on the one or more reference images;
• correcting hardening beam artifact of the second full quality image based on the second bone information image to generate a hardening beam artifact corrected image.

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

• obtaining a raw data set related to an object;
• generating a first image set based on the raw data set, wherein the first image set includes a first full quality image and a first max field of view image;
• generating one or more reference images based on the first max field of view image;
• generating a second image set based on the raw data set, wherein the second image set includes a second full quality image;
• generating a second bone information image based on the one or more reference images;
• correcting hardening beam artifact of the second full quality image based on the second bone information image to generate the hardening beam artifact corrected image.