Patent ID: 11875433
Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC G  A | IPC A  G

Claim 13:
14. A system configured to process projection data, comprising:
at least one non-transitory storage medium including a set of instructions; and
at least one processor in communication with the at least one non-transitory storage medium, wherein when executing the set of instructions, the at least one processor is configured to direct the system to:
obtain a first image corresponding to a first area of the subject;
obtain second projection data related to an energy spectrum and a detector energy response of a cone-beam computed tomography, the second projection data corresponding to a second area of the subject, the first area at least partially overlapping with the second area in an overlapping area;
determine first projection data based on the first image, the energy spectrum and the detector energy response of the cone-beam computed tomography by dividing the energy spectrum into one or more bins; and
determine a scatter component based on the first projection data and the second projection data.