Module romeo 

ROMEO weight calculation for phase unwrapping

Calculates edge weights for region-growing phase unwrapping based on:

• Phase coherence
• Phase gradient coherence (multi-echo)
• Magnitude coherence
• Magnitude weights

Reference: Dymerska, B., Eckstein, K., Bachrata, B., Siow, B., Trattnig, S., Shmueli, K., Robinson, S.D. (2021). “Phase unwrapping with a rapid opensource minimum spanning tree algorithm (ROMEO).” Magnetic Resonance in Medicine, 85(4):2294-2308. https://doi.org/10.1002/mrm.28563

Reference implementation: https://github.com/korbinian90/MriResearchTools.jl

Structs

RomeoParams

Parameters for ROMEO weight calculation.

Constants

TWO_PI 🔒

Functions

calculate_weights_romeo

Calculate ROMEO edge weights for phase unwrapping

calculate_weights_romeo_configurable

Calculate ROMEO edge weights with configurable weight components

calculate_weights_single_echo

Simplified weight calculation for single-echo data (no phase2)

idx3d 🔒

Index into a 3D array in Fortran order (column-major, matches NIfTI)

voxel_quality_romeo

Calculate per-voxel quality map from ROMEO edge weights

wrap_angle 🔒

Wrap angle to [-π, π]