Examples

PET scanner and sinogram geometry examples

Regular polygon PET scanner geometry

Regular polygon PET scanner geometry

LOR descriptors and sinogram definition

LOR descriptors and sinogram definition

Modularized (block) PET scanner geometry

Modularized (block) PET scanner geometry

Michelograms and axial sinogram compression

Michelograms and axial sinogram compression

PET sinogram and listmode projector examples

PET non-TOF sinogram projector

PET non-TOF sinogram projector

PET TOF sinogram projector

PET TOF sinogram projector

Non-TOF and TOF projections using a modularized (block) PET scanner geometry

Non-TOF and TOF projections using a modularized (block) PET scanner geometry

PET listmode projector (non-TOF and TOF)

PET listmode projector (non-TOF and TOF)

Iterative algorithm examples

Convergence comparison: MLEM vs OSEM vs SVRG

Convergence comparison: MLEM vs OSEM vs SVRG

Convergence comparison: SGD vs SVRG with quadratic regularization

Convergence comparison: SGD vs SVRG with quadratic regularization

PDHG and SPDHG for PET reconstruction with a directional TV prior

PDHG and SPDHG for PET reconstruction with a directional TV prior

2D non-TOF filtered back projection (FBP) of Poisson data

2D non-TOF filtered back projection (FBP) of Poisson data

DePierro’s algorithm to optimize the Poisson logL with quadratic intensity prior

DePierro's algorithm to optimize the Poisson logL with quadratic intensity prior

Iterative listmode algorithm examples

Listmode MLEM, OSEM, and SVRG

Listmode MLEM, OSEM, and SVRG

Convergence comparison: SGD vs SVRG with regularization (sinogram and listmode)

Convergence comparison: SGD vs SVRG with regularization (sinogram and listmode)

PDHG and LM-SPHG to optimize the Poisson logL and total variation

PDHG and LM-SPHG to optimize the Poisson logL and total variation

Custom parallelproj pytorch layer examples

pytorch parallelproj projection layer

pytorch parallelproj projection layer