Struct ChiSepMediInputs 

pub struct ChiSepMediInputs<'a> {
    pub magnitude: &'a [f64],
    pub local_field: &'a [f64],
    pub r2prime: &'a [f64],
    pub n_std: &'a [f64],
    pub qsm: &'a [f64],
    pub mask: &'a [u8],
    pub mask_csf: &'a [u8],
}

The volumes chi_sep_medi takes, as chi_sep_MEDI(mag, local_field_hz, r2prime, N_std, mask, params, option_data) takes them. All are on the grid, column-major.

Fields

magnitude: &'a [f64]

Magnitude (mag; Chisep_script.m passes the root-sum-of-squares over echoes). Only its edges are used (MEDI’s gradient_mask).

local_field: &'a [f64]

Local field in ppm (the toolbox takes it in Hz; converted with ChiSepMediParams::cf).

r2prime: &'a [f64]

R2′ in Hz (r2prime).

n_std: &'a [f64]

Noise standard deviation of the field (N_std); the data weights are mask/N_std normalised to mean 1, so only its relative values matter. The toolbox (script and GUI) passes MEDI Fit_ppm_complex‘s dp1 from the echoes’ magnitudes, crate::utils::fit_ppm_complex_noise.

qsm: &'a [f64]

Conventional QSM in ppm (option_data.qsm), the initial guess.

mask: &'a [u8]

Brain mask (mask), nonzero inside.

mask_csf: &'a [u8]

CSF mask (option_data.mask_CSF), nonzero inside; required, as Chisep_script.m passes one. All zero: no CSF term, which reproduces the toolbox GUI (mask_CSF = []).

Trait Implementations

impl<'a> Clone for ChiSepMediInputs<'a>

fn clone(&self) -> ChiSepMediInputs<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Copy for ChiSepMediInputs<'a>