I want to know how to simulate Poisson noise in projections using PyTomography

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1

Dear all

I want to know how to simulate Poisson noise in projections using PyTomography.The following is my projection process.

Thank you

collimator_name = ‘SY-LEHR’

energy_kev = 140

psf_meta = dicom.get_psfmeta_from_scanner_params(collimator_name, energy_kev)

psf_transform = SPECTPSFTransform(psf_meta)

system_matrix_SPECT = SPECTSystemMatrix(

obj2obj_transforms=\[att_transform, psf_transform\],

proj2proj_transforms=\[\],

object_meta=object_meta,

proj_meta=proj_meta)

proj_SPECT = system_matrix_SPECT.forward(object_truth[0])