Module field_mapping 

Field mapping stage

Multi-echo phase → B0 field map in ppm. Implements the canonical field mapping pipeline: phase offset removal → bipolar correction → unwrapping → B0 estimation.

Functions

field_mapping_direct 🔒

Path B: Multi-echo without phase offset removal (per-echo unwrap + linear fit)

field_mapping_single_echo 🔒

Path C: Single echo unwrap

field_mapping_with_offset 🔒

Path A: Multi-echo with phase offset removal

run_field_mapping

Run field mapping: convert per-echo phase data to a B0 field map in ppm.

unwrap_single 🔒

Unwrap a single echo using the configured algorithm.