Struct InnerFitConfig 

pub struct InnerFitConfig {
    pub min_points: usize,
    pub min_inlier_ratio: f32,
    pub max_rms_residual: f64,
    pub max_center_shift_px: f64,
    pub max_ratio_abs_error: f64,
    pub local_peak_halfwidth_idx: usize,
    pub ransac: RansacConfig,
    pub miss_confidence_factor: f32,
    pub max_angular_gap_rad: f64,
    pub require_inner_fit: bool,
}

Configuration for robust inner ellipse fitting from outer-fit hints.

Fields

min_points: usize

Minimum number of sampled points required to attempt a fit.

min_inlier_ratio: f32

Minimum accepted inlier ratio when RANSAC is used.

max_rms_residual: f64

Maximum accepted RMS Sampson residual (px) of the fitted inner ellipse.

max_center_shift_px: f64

Maximum allowed center shift from outer to inner fit center (px).

max_ratio_abs_error: f64

Maximum allowed absolute error in recovered scale ratio vs radial hint.

local_peak_halfwidth_idx: usize

Local half-width (in radius-sample indices) around the radial hint.

ransac: RansacConfig

RANSAC configuration for robust inner ellipse fitting.

miss_confidence_factor: f32

Confidence multiplier applied when inner ellipse fit fails or is absent.

Inner fit failure is a reliable signal of poor image quality (heavy blur, distortion, or edge contamination). Setting this below 1.0 discounts the decode confidence when the inner ring cannot be fitted, making true markers in clear regions easier to separate from false detections.

Default: 0.7 (30 % confidence reduction on inner-fit miss).

max_angular_gap_rad: f64

Maximum allowed angular gap (radians) between consecutive inner edge points. Fits where the largest gap exceeds this are rejected.

Default: π/2 (90 degrees).

require_inner_fit: bool

When true, markers are hard-rejected (not just penalized) if the inner ellipse cannot be fitted. Requires two good ellipses per marker.

Default: false (backward-compatible).

Trait Implementations

impl Clone for InnerFitConfig

fn clone(&self) -> InnerFitConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InnerFitConfig

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

Formats the value using the given formatter.

impl Default for InnerFitConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for InnerFitConfig

where InnerFitConfig: Default,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for InnerFitConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.