Struct CocoDetection 

pub struct CocoDetection {
    pub id: AnnId,
    pub image_id: ImageId,
    pub category_id: CategoryId,
    pub score: f64,
    pub bbox: Bbox,
    pub area: f64,
    pub segmentation: Option<Segmentation>,
    pub keypoints: Option<Vec<f64>>,
    pub num_keypoints: Option<u32>,
}

One COCO detection record (the DT side, what loadRes consumes).

Per the dispositions in this module’s header:

• is_crowd does not exist as a field — quirks E2 / J4.
• area is derived from bbox at construction (bbox.w * bbox.h) — quirk J3.
• id is honored when the user supplies one and auto-assigned otherwise — quirk J1 (aligned, an opinionated improvement over pycocotools’ silent overwrite).

Fields

id: AnnId

Detection id. Either user-supplied (J1) or auto-assigned by CocoDetections::from_inputs.

image_id: ImageId

Image this detection is on.

category_id: CategoryId

Category this detection predicts.

score: f64

Confidence score. Sort key for the matching engine.

bbox: Bbox

Bounding box ((x, y, w, h)).

area: f64

Pixel area, derived from bbox per quirk J3.

segmentation: Option<Segmentation>

Segmentation prediction, when the detector emits one. None for bbox-only detectors. Parity dispositions match CocoAnnotation::segmentation.

keypoints: Option<Vec<f64>>

Flat keypoint triplets [x_1, y_1, v_1, x_2, y_2, v_2, ...] (per ADR-0012). None for bbox-/segm-only detectors; the eval pipeline raises EvalError::InvalidAnnotation when a DT is missing keypoints under iouType="keypoints".

num_keypoints: Option<u32>

COCO num_keypoints count of visible keypoints. On DT this field is not required (pycocotools never reads it); the OKS pipeline derives it from keypoints when needed. Tracked here for shape-parity with CocoAnnotation::num_keypoints.

Trait Implementations

impl Annotation for CocoDetection

fn image_id(&self) -> ImageId

Image this annotation belongs to.

fn category_id(&self) -> CategoryId

Category this annotation belongs to.

fn area(&self) -> f64

Pixel area.

fn is_crowd(&self) -> bool

Crowd flag (raw, before parity resolution).

fn effective_ignore(&self, _: ParityMode) -> bool

Effective ignore flag under the given parity mode.

impl Clone for CocoDetection

fn clone(&self) -> CocoDetection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CocoDetection

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

Formats the value using the given formatter.

impl PartialEq for CocoDetection

fn eq(&self, other: &CocoDetection) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for CocoDetection