Struct BoundingBox 

pub struct BoundingBox {
    pub x1: u32,
    pub y1: u32,
    pub x2: u32,
    pub y2: u32,
    pub label: String,
    pub confidence: Option<f32>,
}

A single detection emitted by a VL model’s grounding head.

Coordinates are in pixel space of the input image, following Qwen2.5-VL’s inclusive xyxy convention — the same as COCO and standard detection reference implementations. Both corners are inclusive: width is x2 - x1 + 1, height is y2 - y1 + 1. label is the model-supplied object reference; may be empty when the prompt already named the subject (“find the dog”).

Fields

x1: u32

Inclusive left pixel.

y1: u32

Inclusive top pixel.

x2: u32

Inclusive right pixel (width = x2 - x1 + 1).

y2: u32

Inclusive bottom pixel (height = y2 - y1 + 1).

label: String

Object label the model attached to this box. Empty when no <|object_ref_*|> span preceded the box.

confidence: Option<f32>

Model-reported confidence in [0.0, 1.0] when available. Qwen2.5-VL does not currently emit per-box confidences inline; this field exists for forward compat with richer backends.

Implementations

impl BoundingBox

pub fn width(&self) -> u32

Pixel width of this box. Inclusive xyxy convention means a single-pixel box has width 1, not 0, so we add 1.

pub fn height(&self) -> u32

Pixel height of this box. Same inclusive convention as [width].

pub fn area(&self) -> u64

Pixel area. Convenience for ranking / IoU callers.

Trait Implementations

impl Clone for BoundingBox

fn clone(&self) -> BoundingBox

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BoundingBox

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for BoundingBox

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for BoundingBox

fn eq(&self, other: &BoundingBox) -> 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 Serialize for BoundingBox

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for BoundingBox