boofcv.alg.background.moving

Class BackgroundMovingGaussian_PL<T extends boofcv.struct.image.ImageGray,Motion extends georegression.struct.InvertibleTransform<Motion>>

java.lang.Object

boofcv.alg.background.BackgroundModel<T>

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

boofcv.alg.background.moving.BackgroundMovingGaussian<boofcv.struct.image.Planar<T>,Motion>

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

All Implemented Interfaces:

BackgroundAlgorithmGaussian

public class BackgroundMovingGaussian_PL<T extends boofcv.struct.image.ImageGray,Motion extends georegression.struct.InvertibleTransform<Motion>>
extends BackgroundMovingGaussian<boofcv.struct.image.Planar<T>,Motion>

Implementation of BackgroundMovingGaussian for Planar.

Field Summary

Fields

Modifier and Type	Field and Description
protected boofcv.core.image.GImageMultiBand	inputWrapper
protected boofcv.alg.interpolate.InterpolatePixelMB<boofcv.struct.image.Planar<T>>	interpolateInput
protected boofcv.alg.interpolate.InterpolatePixelMB<boofcv.struct.image.Planar<boofcv.struct.image.GrayF32>>	interpolationBG
protected float[]	pixelBG
protected float[]	pixelInput

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

initialVariance, learnRate, minimumDifference, threshold

Fields inherited from class boofcv.alg.background.BackgroundModelMoving

backgroundHeight, backgroundWidth, corners, currentToWorld, homeToWorld, transform, work, worldToCurrent, worldToHome

Fields inherited from class boofcv.alg.background.BackgroundModel

imageType, unknownValue

Constructor Summary

Constructors

Constructor and Description
BackgroundMovingGaussian_PL(float learnRate, float threshold, boofcv.struct.distort.PointTransformModel_F32<Motion> transform, boofcv.alg.interpolate.TypeInterpolate interpType, boofcv.struct.image.ImageType<boofcv.struct.image.Planar<T>> imageType) Configurations background removal.

Method Summary

Modifier and Type	Method and Description
protected void	_segment(Motion currentToWorld, boofcv.struct.image.Planar<T> frame, boofcv.struct.image.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, boofcv.struct.image.Planar<T> frame) Call to update the background with the frame inside the bounding box.

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

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

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

Field Detail

interpolateInput

protected boofcv.alg.interpolate.InterpolatePixelMB<boofcv.struct.image.Planar<T extends boofcv.struct.image.ImageGray>> interpolateInput

interpolationBG

protected boofcv.alg.interpolate.InterpolatePixelMB<boofcv.struct.image.Planar<boofcv.struct.image.GrayF32>> interpolationBG

inputWrapper

protected boofcv.core.image.GImageMultiBand inputWrapper

pixelBG

protected float[] pixelBG

pixelInput

protected float[] pixelInput

Constructor Detail

BackgroundMovingGaussian_PL

public BackgroundMovingGaussian_PL(float learnRate,
                                   float threshold,
                                   boofcv.struct.distort.PointTransformModel_F32<Motion> transform,
                                   boofcv.alg.interpolate.TypeInterpolate interpType,
                                   boofcv.struct.image.ImageType<boofcv.struct.image.Planar<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. Consult a chi-square table for reasonably values. 10 to 16 for 1 to 3 bands.

transform - Used to apply motion model

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

imageType - Type of input image.

Method Detail

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<boofcv.struct.image.Planar<T extends boofcv.struct.image.ImageGray>,Motion extends georegression.struct.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<boofcv.struct.image.Planar<T extends boofcv.struct.image.ImageGray>>

updateBackground

protected void updateBackground(int x0,
                                int y0,
                                int x1,
                                int y1,
                                boofcv.struct.image.Planar<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<boofcv.struct.image.Planar<T extends boofcv.struct.image.ImageGray>,Motion extends georegression.struct.InvertibleTransform<Motion>>

_segment

protected void _segment(Motion currentToWorld,
                        boofcv.struct.image.Planar<T> frame,
                        boofcv.struct.image.GrayU8 segmented)

Specified by:

_segment in class BackgroundModelMoving<boofcv.struct.image.Planar<T extends boofcv.struct.image.ImageGray>,Motion extends georegression.struct.InvertibleTransform<Motion>>