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Version: 0.7.x

Class: ObjectDetectionModule

Defined in: packages/react-native-executorch/src/modules/computer_vision/ObjectDetectionModule.ts:13

Module for object detection tasks.

Extends​

  • BaseModule

Constructors​

Constructor​

new ObjectDetectionModule(): ObjectDetectionModule

Returns​

ObjectDetectionModule

Inherited from​

BaseModule.constructor

Properties​

nativeModule​

nativeModule: any = null

Defined in: packages/react-native-executorch/src/modules/BaseModule.ts:8

Native module instance

Inherited from​

BaseModule.nativeModule

Methods​

delete()​

delete(): void

Defined in: packages/react-native-executorch/src/modules/BaseModule.ts:41

Unloads the model from memory.

Returns​

void

Inherited from​

BaseModule.delete


forward()​

forward(imageSource, detectionThreshold): Promise<Detection[]>

Defined in: packages/react-native-executorch/src/modules/computer_vision/ObjectDetectionModule.ts:46

Executes the model's forward pass, where imageSource can be a fetchable resource or a Base64-encoded string. detectionThreshold can be supplied to alter the sensitivity of the detection.

Parameters​

imageSource​

string

The image source to be processed.

detectionThreshold​

number = 0.7

The threshold for detection sensitivity. Default is 0.7.

Returns​

Promise<Detection[]>

An array of Detection objects representing detected items in the image.


forwardET()​

protected forwardET(inputTensor): Promise<TensorPtr[]>

Defined in: packages/react-native-executorch/src/modules/BaseModule.ts:23

Runs the model's forward method with the given input tensors. It returns the output tensors that mimic the structure of output from ExecuTorch.

Parameters​

inputTensor​

TensorPtr[]

Array of input tensors.

Returns​

Promise<TensorPtr[]>

Array of output tensors.

Inherited from​

BaseModule.forwardET


getInputShape()​

getInputShape(methodName, index): Promise<number[]>

Defined in: packages/react-native-executorch/src/modules/BaseModule.ts:34

Gets the input shape for a given method and index.

Parameters​

methodName​

string

method name

index​

number

index of the argument which shape is requested

Returns​

Promise<number[]>

The input shape as an array of numbers.

Inherited from​

BaseModule.getInputShape


load()​

load(model, onDownloadProgressCallback): Promise<void>

Defined in: packages/react-native-executorch/src/modules/computer_vision/ObjectDetectionModule.ts:21

Loads the model, where modelSource is a string that specifies the location of the model binary. To track the download progress, supply a callback function onDownloadProgressCallback.

Parameters​

model​

Object containing modelSource.

modelSource​

ResourceSource

onDownloadProgressCallback​

(progress) => void

Optional callback to monitor download progress.

Returns​

Promise<void>

Overrides​

BaseModule.load