Model Registration Modules

Model registration classes align PyVista meshes and derived image masks. They are used by WorkflowFitStatisticalModelToPatient.

• ICP (Iterative Closest Point)
  • Class Reference
• ICP with ITK Backend
  • Class Reference
• Distance Map Registration
  • Class Reference
• PCA-Based Registration
  • Class Reference

Available Classes

• RegisterModelsICP: initial surface alignment.

• RegisterModelsICPITK: ITK point-set registration.

• RegisterModelsDistanceMaps: distance-map based deformable registration.

• RegisterModelsPCA: statistical shape model fitting.

Workflow-Level Use

Most users should access model registration through the workflow:

import itk
import pyvista as pv

from physiomotion4d import WorkflowFitStatisticalModelToPatient

workflow = WorkflowFitStatisticalModelToPatient(
    template_model=pv.read("template_heart.vtu"),
    patient_models=[pv.read("lv.vtp"), pv.read("rv.vtp")],
    patient_image=itk.imread("patient_ct.nii.gz"),
)

result = workflow.run_workflow()

See Also

• Workflow Classes

• Heart Model to Patient Registration