Polyaffine transforms present an approach to piecewise transform composition where several 3D centerpoints are paired with affine transforms and a function smooths transform output across a corresponding physical domain.
Similar to how itk_dreg.reduce_dfield implements the itk_dreg.base.registration_interface.ReduceResultsMethod virtual interface, we could implement a reduction method to reduce several piecewise affine inputs into a single polyaffine transform result. A polyaffine transform may require significantly less storage than a displacement field to describe transformations over a given region.
Feature Request
Recommended: Create a new itk-dreg-polyaffine project repository for the extension.
Have itk_dreg_polyaffine depend on itk_dreg in its pyproject.toml
Background
Polyaffine transforms present an approach to piecewise transform composition where several 3D centerpoints are paired with affine transforms and a function smooths transform output across a corresponding physical domain.
Similar to how
itk_dreg.reduce_dfieldimplements theitk_dreg.base.registration_interface.ReduceResultsMethodvirtual interface, we could implement a reduction method to reduce several piecewise affine inputs into a single polyaffine transform result. A polyaffine transform may require significantly less storage than a displacement field to describe transformations over a given region.Feature Request
itk-dreg-polyaffineproject repository for the extension.itk_dreg_polyaffinedepend onitk_dregin itspyproject.tomlPolyaffineReduceResultsMethodextendingReduceResultsMethoditk-dreg-polyaffineon PyPI with example usage and testing