robbietuk

Greater number of delayed coincidences than random event coincidences in output ROOT files

3

I recently posted this issue on the users list but had no joy in diagnosing the issue. I have been simulating PET acquisitions using GATE on an XCAT phantom for...

This is mostly for documenting the issue. I am running from Clion and a number of CTests (including `test_data_processor_projectors`) are failing because I haven't installed STIR, just built it. The...

Sets up the basic PyQt5 UI and uses MatPlotLib for image show. Currently, takes command line argument for projection data path. Remaining todo: v0.2 - [x] File browser built into...

lm_to_projdata output filename prefix with "." leads to suffix issue

1

Playing with `lm_to_projdata.par` output filename prefix and the usage of `output filename prefix := Unlisted/Delayed/Sim_test.Delayed` results in filename header `Sim_test.hs` and binary `Sim_test.Delayed_f1g1d0b0`. `Sim_test.hs` does link correctly with `name of...

Generate SWIG prior factory

2

Adds downcasting via a swig factory for priors. This should address #662 and #707

No rotational symmetry tests ---- As mentioned in https://github.com/UCL/STIR/issues/999#issuecomment-1050071059, there are no rotational symmetry tests run right now because the[ two implemented scanner configurations](https://github.com/UCL/STIR/blob/77ec42303521e3a84d8053d7511d929e06003084/src/recon_test/test_DataSymmetriesForBins_PET_CartesianGrid.cxx#L679-L704) have non-zero `intrinsic_azimuthal_tilt` (related to #181),...

This came up in a discussion today so making a reminder issue. I think we are only testing c++11 builds with GHA. https://github.com/UCL/STIR/blob/master/.github/workflows/build-test.yml We found that with some MacOS clang...

An issue identified in #961, specifically [here](https://github.com/UCL/STIR/pull/961#discussion_r750694702). The output projdata may be created from the template when provided. However, significant information is ignored when creating the randoms from singles, e.g.,...

This will impact any randoms estimation from singles and may have lead to the increased half life observed in https://github.com/UCL/STIR/pull/941. The provided plot indicates that the singles decay slower than...

Listmode reconstruction with bin normalisation causes rotation of image xy for data but not sensitivity

1

List mode reconstruction using OSMAPOSL using data from Gate in root file format can cause a rotation in x-y from the sensitivity image. This occurs even if the sensitivy image...