Class RoiAlign

Represents an RoiAlign region of interest alignment layer. This calculates an output tensor by pooling the input tensor across each region of interest given by the rois tensor.

Inheritance

Object

Layer

RoiAlign

Inherited Members

Layer.inputs

Layer.name

Layer.outputs

Layer.flags

Object.Equals(Object)

Object.Equals(Object, Object)

Object.ReferenceEquals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Namespace: Unity.Sentis.Layers

Syntax

[Serializable]
public class RoiAlign : Layer

Constructors

RoiAlign(String, String, String, String, RoiPoolingMode, Int32, Int32, Int32, Single)

Initializes and returns an instance of RoiAlign region of interest alignment layer.

Declaration

public RoiAlign(string name, string input, string rois, string batchIndices, RoiPoolingMode mode, int outputHeight, int outputWidth, int samplingRatio, float spatialScale)

Parameters

Type	Name	Description
String	name	The name to use for the output tensor of the layer.
String	input	The name to use for the input tensor of the layer.
String	rois	The name to use for the region of interest tensor of the layer.
String	batchIndices	The name to use for the 1D input tensor where each element denotes the index of the image in the batch for a given region of interest.
RoiPoolingMode	mode	The pooling mode of the operation as an RoiPoolingMode.
Int32	outputHeight	The height of the output tensor.
Int32	outputWidth	The width of the output tensor.
Int32	samplingRatio	The number of sampling points in the interpolation grid used to compute the output value of each pooled output bin.
Single	spatialScale	The multiplicative spatial scale factor used to translate coordinates from their input spatial scale to the scale used when pooling.

Fields

mode

The pooling mode of the operation as an RoiPoolingMode.

Declaration

public RoiPoolingMode mode

Field Value

Type	Description
RoiPoolingMode

outputHeight

The height of the output tensor.

Declaration

public int outputHeight

Field Value

Type	Description
Int32

outputWidth

The width of the output tensor.

Declaration

public int outputWidth

Field Value

Type	Description
Int32

samplingRatio

The number of sampling points in the interpolation grid used to compute the output value of each pooled output bin.

Declaration

public int samplingRatio

Field Value

Type	Description
Int32

spatialScale

The multiplicative spatial scale factor used to translate coordinates from their input spatial scale to the scale used when pooling.

Declaration

public float spatialScale

Field Value

Type	Description
Single

Methods

Execute(Tensor[], ExecutionContext)

Executes the layer using the operations and variables from the ExecutionContext and returns the output tensor.

If the layer has more than one output, output tensors are saved to variables.

Declaration

public override Tensor Execute(Tensor[] inputTensors, ExecutionContext ctx)

Parameters

Type	Name	Description
Tensor[]	inputTensors
ExecutionContext	ctx

Returns

Type	Description
Tensor

Overrides

Layer.Execute(Tensor[], ExecutionContext)

ToString()

Returns a string that represents the Layer.

Declaration

public override string ToString()

Returns

Type	Description
String

Overrides

Layer.ToString()