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

Claim 4:
5. The system of claim 2, wherein the second projection data is obtained by performing a second scan of the subject using a second imaging device, the second scan is performed using energy beams of one or more energy spectra generated by the second device, and the first projection data is further determined based on the energy spectra and detector energy response of the second device, and to determine first projection data based on the first image and the energy spectra and detector energy response of the second device, the at least one processor is further directed to:
divide, based on an energy range metric, the energy spectrum of the energy beams related to the second scan into one or more bins, each bin corresponding to an energy range;
for each of the one or more bins, determine simulated projection data based on the first image and an energy range corresponding to the bin; and
combine the simulated projection data of the one or more bins to generate the first projection data.