Patent ID: 11887221
Assignee: SHANGHAI UNITED IMAGING INTELLIGENCE CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. A system for generating an attenuation correction model, comprising:
at least one storage device including a set of instructions; and
at least one processor configured to communicate with the at least one storage device, wherein when executing the set of instructions, the at least one processor is configured to direct the system to perform operations including:
acquiring a plurality of training samples, each of the plurality of training samples including a sample positron-emission tomography (PET) image of a sample subject, a sample computed tomography (CT) image of the sample subject, and a sample attenuation-corrected PET image corresponding to the sample PET image; and
for each of the plurality of training samples, generating a sample concatenated image based on the sample PET image and the sample CT image of the training sample;
generating the attenuation correction model by training a cascaded neural network using the sample concatenated image and the sample attenuation-corrected PET image of each of the plurality of training samples.