Process for computed tomography image

A CT image processing device comprising:

• a processor which invokes machine readable instructions corresponding to a CT image processing logic stored on a storage medium and executes the machine readable instructions to:
• access an original CT image, wherein the original CT image is reconstructed from a first set of raw data and includes distortion representative of windmill artifacts;
• generate a high-frequency image by processing the original CT image with a first frequency division process;
• generate a low-frequency image by processing a plurality of thick images with a second frequency division process and combining the plurality of processed thick images, wherein the plurality of thick images is reconstructed from a second set of raw data that includes the first set of raw data, and each of the plurality of thick images includes substantially no distortion representative of windmill artifacts;
• generate an intermediate image by synthesizing the high-frequency image and the low-frequency image;
• and
• obtain a target CT image based on the generated intermediate image.

A non-transitory computer readable storage medium storing instructions executable by a processor and upon such execution cause the processor to:

• access an original CT image, wherein the original CT image is reconstructed from a first set of raw data and includes distortion representative of windmill artifacts;
• generate a high-frequency image by processing the original CT image with a first frequency division process;
• generate a low-frequency image by processing a plurality of thick images with a second frequency division process and combining the plurality of processed thick images, wherein the plurality of thick images is reconstructed from a second set of raw data that includes the first set of raw data, and each of the plurality of thick images includes substantially no distortion representative of windmill artifacts;
• generate an intermediate image by synthesizing the high-frequency image and the low-frequency image;
• and
• obtain a target CT image based on the generated intermediate image.