Enum ModelSource 

pub enum ModelSource {
    Onnx,
    TfLite,
    CoreMl,
    Other,
}

Container format of the model the signals were read from. Drives Ultralytics per-format conventions (box normalization, tensor order).

Variants

Onnx

An ONNX export. Ultralytics emits pixel-space box coordinates here, so the inferred schema sets normalized: false.

TfLite

A TFLite/LiteRT export. Ultralytics emits boxes normalized to [0, 1] here, so the inferred schema sets normalized: true.

CoreMl

A CoreML export (.mlpackage / .mlmodelc). Ultralytics’ CoreML converter traces the same graph the ONNX exporter traces — the 1/w normalize lives only in IOSDetectModel, which is used solely on the nms=True pipeline path — so a no-NMS export emits pixel-space box coordinates and the inferred schema sets normalized: false, matching ModelSource::Onnx.

Established by source-tracing the Ultralytics exporter and confirmed by runtime magnitude measurement against a matched fp16 ONNX pair; testdata/infer/NOTES.md records the reasoning, the measurement and the captured fixture.

This resolution covers the no-NMS export only. A nms=True export runs Apple’s NMS pipeline (image/iouThreshold/ confidenceThreshold inputs, dynamically-shaped confidence/ coordinates outputs) — a different artifact entirely, not the anchor-grid tensor this resolution reasons about. Inference does not classify it as a schema: neither output’s shape can match the [1, 4+nc, A] anchor-grid layout this module looks for.

Other

Any other container. Inference refuses this with InferError::UnknownBoxConvention rather than assuming a box convention: whether coordinates are pixel-space or [0, 1] follows the exporter, is not derivable from tensor shapes, and getting it wrong scales every box by the input size. The variant exists so a signal collector can report honestly what it read; add a measured container here rather than routing it through Other.

Trait Implementations

impl Clone for ModelSource

fn clone(&self) -> ModelSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ModelSource

impl Debug for ModelSource

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

Formats the value using the given formatter.

impl Eq for ModelSource

impl PartialEq for ModelSource

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ModelSource