Struct Params 

pub struct Params {
    pub iou_type: IouType,
    pub img_ids: Vec<u64>,
    pub cat_ids: Vec<u64>,
    pub iou_thrs: Vec<f64>,
    pub rec_thrs: Vec<f64>,
    pub max_dets: Vec<usize>,
    pub area_rng: Vec<[f64; 2]>,
    pub area_rng_lbl: Vec<String>,
    pub use_cats: bool,
    pub kpt_oks_sigmas: Vec<f64>,
}

Evaluation parameters controlling IoU thresholds, area ranges, and detection limits.

Defaults match pycocotools: 10 IoU thresholds (0.50:0.05:0.95), 101 recall thresholds, and standard COCO area ranges. Keypoint evaluation uses different defaults (3 area ranges instead of 4, max 20 detections instead of 1/10/100).

Fields

iou_type: IouType

IoU computation type (bbox, segm, or keypoints).

img_ids: Vec<u64>

Image IDs to evaluate (empty = all images).

cat_ids: Vec<u64>

Category IDs to evaluate (empty = all categories).

iou_thrs: Vec<f64>

IoU thresholds for matching (default: 0.50, 0.55, …, 0.95).

rec_thrs: Vec<f64>

Recall thresholds for interpolated precision (default: 0.00, 0.01, …, 1.00).

max_dets: Vec<usize>

Maximum detections per image for each summary metric (default: [1, 10, 100]).

area_rng: Vec<[f64; 2]>

Area ranges as [min, max] for filtering (default: all/small/medium/large).

area_rng_lbl: Vec<String>

Labels for each area range (e.g. “all”, “small”, “medium”, “large”).

use_cats: bool

Whether to evaluate per-category (true) or pool all categories (false).

kpt_oks_sigmas: Vec<f64>

Per-keypoint OKS sigmas (default: 17 COCO keypoint sigmas).

Implementations

impl Params

pub fn new(iou_type: IouType) -> Self

Create default parameters for the given evaluation type.

Keypoint evaluation uses 3 area ranges (all/medium/large) and a single max-detections value of 20. All other types use 4 area ranges (all/small/medium/large) and max-detections of [1, 10, 100].

Trait Implementations

impl Clone for Params

fn clone(&self) -> Params

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Params

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

Formats the value using the given formatter.