Patent ID: 11875434
Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A method implemented on a computing device having at least one processor and at least one storage device, the method comprising:
obtaining a plurality of projection images of a subject, the plurality of projection images being generated according to scan data acquired by a CT scanner at a plurality of gantry angles, each of the plurality of projection images corresponding to one of the plurality of gantry angles; and
correcting the plurality of projection images by performing one or more iterations, an iteration of the one or more iterations including:
correcting the plurality of projection images in the iteration to generate a plurality of corrected projection images;
determining whether the plurality of corrected projection images in the iteration satisfy a condition; and
in response to determining that the plurality of corrected projection images fail to satisfy the condition, designating the plurality of corrected projection images in the iteration as the plurality of projection images in a next iteration.