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NltvParams

qsm_core::inversion::nltv

Struct NltvParams 

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pub struct NltvParams {
    pub lambda: f64,
    pub rho: Option<f64>,
    pub mu: f64,
    pub tol: f64,
    pub max_iter: usize,
    pub tol_newton: f64,
    pub max_iter_newton: usize,
    pub b0: f64,
    pub echo_times: Vec<f64>,
    pub te: EchoTime,
    pub pad: [i64; 3],
}
Expand description

NLTV algorithm parameters (QSM.jl nltv defaults)

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§lambda: f64

TV regularisation parameter

§rho: Option<f64>

ADMM penalty for the TV term; None uses QSM.jl’s default, 100 * lambda

§mu: f64

ADMM penalty for the data term

§tol: f64

Stopping tolerance on ||x - x_prev|| / ||x||

§max_iter: usize

Maximum ADMM iterations

§tol_newton: f64

Stopping tolerance for the Newton iterations of the data subproblem

§max_iter_newton: usize

Maximum Newton iterations per ADMM iteration

§b0: f64

Field strength in Tesla (scan parameter, for the radian conversion)

§echo_times: Vec<f64>

Echo times in seconds, in acquisition order (scan parameter, for the radian conversion).

§te: EchoTime

Which echo time the radian conversion uses. Default EchoTime::First: QSM.jl’s nltv (src/inversion/nltv.jl, fde4b92) takes the field or phase of each echo separately and gives no rule for a field combined over echoes, so the first echo time, the default where the reference does not say.

§pad: [i64; 3]

Zero padding per axis, QSM.jl’s pad (default [0, 0, 0], QSM.jl’s): < 0 does not pad that axis, ≥ 0 pads it by at least that many voxels, rounded up to QSM.jl’s fast FFT size (see with_qsmjl_padding).

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impl Clone for NltvParams

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fn clone(&self) -> NltvParams

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for NltvParams

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for NltvParams

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Serialize for NltvParams

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

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