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Flow Matching-enabled Test-Time Refinement for Unsupervised Cardiac MR Registration

Flow matching for deformable 3D medical image registration, evaluated on cardiac MRI. The repository also includes reimplementations of baseline methods (FSDiffReg, CorrMLP) for comparison.

Data Preprocessing

# ACDC
python data/acdc_preprocess.py --data_dir /path/to/acdc/database --out_dir /path/to/data

# M&Ms-2
python data/mnms2_preprocess.py --data_dir /path/to/mnms2/database --out_dir /path/to/data

Training

# FlowReg
python -m flowreg.train --data_dir /path/to/data

# FSDiffReg
python -m fsdiffreg.train --data_dir /path/to/data

# CorrMLP
python -m corrmlp.train --data_dir /path/to/data

Testing

# FlowReg
python -m flowreg.test --data_dir /path/to/data --checkpoint /path/to/checkpoint.pt

# FSDiffReg
python -m fsdiffreg.test --data_dir /path/to/data --checkpoint /path/to/checkpoint.pt

# CorrMLP
python -m corrmlp.test --data_dir /path/to/data --checkpoint /path/to/checkpoint.pt