Package boofcv.alg.background.moving

Class BackgroundMovingGaussian_SB<T extends ImageGray<T>,Motion extends InvertibleTransform<Motion>>

java.lang.Object

boofcv.alg.background.BackgroundModel<T>

boofcv.alg.background.BackgroundModelMoving<T,Motion>

boofcv.alg.background.moving.BackgroundMovingGaussian<T,Motion>

boofcv.alg.background.moving.BackgroundMovingGaussian_SB<T,Motion>

All Implemented Interfaces:

BackgroundAlgorithmGaussian

public class BackgroundMovingGaussian_SB<T extends ImageGray<T>,Motion extends InvertibleTransform<Motion>>
extends BackgroundMovingGaussian<T,Motion>

Implementation of BackgroundMovingGaussian for ImageGray.

Field Summary

Fields

Modifier and Type	Field	Description
protected final InterpolatePixelMB<InterleavedF32>	_interpolationBG
protected final InterpolatePixelS<T>	_interpolationInput
protected final InterleavedF32	background
protected final BackgroundMovingGaussian_SB<T,Motion>.boofcv.alg.background.moving.BackgroundMovingGaussian_SB.Helper	helper
protected final GrowArray<BackgroundMovingGaussian_SB<T,Motion>.boofcv.alg.background.moving.BackgroundMovingGaussian_SB.Helper>	helpers
protected final GImageGray	inputWrapper

Fields inherited from class boofcv.alg.background.moving.BackgroundMovingGaussian

initialVariance, learnRate, minimumDifference, threshold

Fields inherited from class boofcv.alg.background.BackgroundModelMoving

_transform, backgroundHeight, backgroundWidth, corners, currentToWorld, homeToWorld, worldToCurrent, worldToHome

Fields inherited from class boofcv.alg.background.BackgroundModel

imageType, unknownValue

Constructor Summary

Constructors

Constructor	Description
BackgroundMovingGaussian_SB(float learnRate, float threshold, Point2Transform2Model_F32<Motion> transform, InterpolationType interpType, Class<T> imageType)	Configurations background removal.

Method Summary

Modifier and Type	Method	Description
protected void	_segment(Motion currentToWorld, T frame, GrayU8 segmented)
void	initialize(int backgroundWidth, int backgroundHeight, Motion homeToWorld)	Initializes background model.
void	reset()	Resets model to its original state
protected void	updateBackground(int x0, int y0, int x1, int y1, T frame)	Call to update the background with the frame inside the bounding box.

Methods inherited from class boofcv.alg.background.BackgroundModelMoving

segment, updateBackground

Methods inherited from class boofcv.alg.background.BackgroundModel

getImageType, getUnknownValue, setUnknownValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface boofcv.alg.background.BackgroundAlgorithmGaussian

getInitialVariance, getLearnRate, getMinimumDifference, getThreshold, setInitialVariance, setLearnRate, setMinimumDifference, setThreshold

Field Details

_interpolationInput

protected final InterpolatePixelS<T extends ImageGray<T>> _interpolationInput

_interpolationBG

protected final InterpolatePixelMB<InterleavedF32> _interpolationBG

inputWrapper

protected final GImageGray inputWrapper

background

protected final InterleavedF32 background

helpers

protected final GrowArray<BackgroundMovingGaussian_SB<T extends ImageGray<T>,Motion extends InvertibleTransform<Motion>>.boofcv.alg.background.moving.BackgroundMovingGaussian_SB.Helper> helpers

helper

protected final BackgroundMovingGaussian_SB<T extends ImageGray<T>,Motion extends InvertibleTransform<Motion>>.boofcv.alg.background.moving.BackgroundMovingGaussian_SB.Helper helper

Constructor Details

BackgroundMovingGaussian_SB

public BackgroundMovingGaussian_SB(float learnRate,
 float threshold,
 Point2Transform2Model_F32<Motion> transform,
 InterpolationType interpType,
 Class<T> imageType)

Configurations background removal.

Parameters:

learnRate - Specifies how quickly the background is updated. 0 = static 1.0 = instant. Try 0.05

threshold - Threshold for background. Try 10.

transform - Used to apply motion model

interpType - Type of interpolation. BILINEAR recommended for accuracy. NEAREST_NEIGHBOR for speed. .

imageType - Type of input image.

Method Details

initialize

public void initialize(int backgroundWidth,
 int backgroundHeight,
 Motion homeToWorld)

Description copied from class: BackgroundModelMoving

Initializes background model. Specifies the size of the background image and transform from the "home" image to the background "world"

Specified by:

initialize in class BackgroundModelMoving<T extends ImageGray<T>,Motion extends InvertibleTransform<Motion>>

Parameters:

backgroundWidth - Width of background

backgroundHeight - Height of background

homeToWorld - Transform from home to world.

reset

public void reset()

Description copied from class: BackgroundModel

Resets model to its original state

Specified by:

reset in class BackgroundModel<T extends ImageGray<T>>

updateBackground

protected void updateBackground(int x0,
 int y0,
 int x1,
 int y1,
 T frame)

Description copied from class: BackgroundModelMoving

Call to update the background with the frame inside the bounding box. Implementing class needs to make sure the rectangle is inside the background.

Specified by:

updateBackground in class BackgroundModelMoving<T extends ImageGray<T>,Motion extends InvertibleTransform<Motion>>

_segment

protected void _segment(Motion currentToWorld,
 T frame,
 GrayU8 segmented)

Specified by:

_segment in class BackgroundModelMoving<T extends ImageGray<T>,Motion extends InvertibleTransform<Motion>>