DistanceFunction

norfair_rs::distances

Enum DistanceFunction

pub enum DistanceFunction {
    Frobenius(ScalarDistance),
    MeanEuclidean(ScalarDistance),
    MeanManhattan(ScalarDistance),
    Iou(VectorizedDistance),
    ScipyEuclidean(ScipyDistance),
    ScipySqeuclidean(ScipyDistance),
    ScipyManhattan(ScipyDistance),
    ScipyCosine(ScipyDistance),
    ScipyChebyshev(ScipyDistance),
}

Expand description

Enum-based distance function for static dispatch.

This avoids Box<dyn Distance> vtable overhead by using an enum with inline implementations. Use distance_function_by_name() to create instances.

Variants§

Frobenius(ScalarDistance)

MeanEuclidean(ScalarDistance)

MeanManhattan(ScalarDistance)

Iou(VectorizedDistance)

ScipyEuclidean(ScipyDistance)

ScipySqeuclidean(ScipyDistance)

ScipyManhattan(ScipyDistance)

ScipyCosine(ScipyDistance)

ScipyChebyshev(ScipyDistance)

Implementations§

impl DistanceFunction

pub fn get_distances( &self, objects: &[&TrackedObject], candidates: &[&Detection], ) -> DMatrix<f64>

Get distances between objects and candidates.

pub fn get_distances_objects( &self, objects: &[&TrackedObject], candidates: &[&TrackedObject], ) -> DMatrix<f64>

Get distances between two sets of TrackedObjects (for ReID matching).

For built-in distance functions, creates temporary Detections from candidate estimates. For custom Python callables, this requires the reid_distance_function to accept (TrackedObject, TrackedObject) -> float (not Detection, TrackedObject).

Trait Implementations§

impl Clone for DistanceFunction

fn clone(&self) -> DistanceFunction

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Distance for DistanceFunction

fn get_distances( &self, objects: &[&TrackedObject], candidates: &[&Detection], ) -> DMatrix<f64>

Compute distances between objects and candidate detections. Read more

Auto Trait Implementations§

impl Freeze for DistanceFunction

impl RefUnwindSafe for DistanceFunction

impl Send for DistanceFunction

impl Sync for DistanceFunction

impl Unpin for DistanceFunction

impl UnwindSafe for DistanceFunction

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Same for T

type Output = T

Should always be Self

impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more

fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).

fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.

fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.