Bgsegm

Objective-C

@interface Bgsegm : NSObject

Swift

class Bgsegm : NSObject

The Bgsegm module

Member classes: BackgroundSubtractorMOG, BackgroundSubtractorGMG, BackgroundSubtractorCNT, BackgroundSubtractorGSOC, BackgroundSubtractorLSBP, BackgroundSubtractorLSBPDesc, SyntheticSequenceGenerator

Member enums: LSBPCameraMotionCompensation

Methods

  • Creates a CNT Background Subtractor

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorCNT *)
    createBackgroundSubtractorCNT:(int)minPixelStability
                       useHistory:(BOOL)useHistory
                maxPixelStability:(int)maxPixelStability
                       isParallel:(BOOL)isParallel;

    Swift

    class func createBackgroundSubtractorCNT(minPixelStability: Int32, useHistory: Bool, maxPixelStability: Int32, isParallel: Bool) -> BackgroundSubtractorCNT

    Parameters

    minPixelStability

    number of frames with same pixel color to consider stable
    useHistory

    determines if we’re giving a pixel credit for being stable for a long time
    maxPixelStability

    maximum allowed credit for a pixel in history
    isParallel

    determines if we’re parallelizing the algorithm

  • Creates a CNT Background Subtractor

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorCNT *)
    createBackgroundSubtractorCNT:(int)minPixelStability
                       useHistory:(BOOL)useHistory
                maxPixelStability:(int)maxPixelStability;

    Swift

    class func createBackgroundSubtractorCNT(minPixelStability: Int32, useHistory: Bool, maxPixelStability: Int32) -> BackgroundSubtractorCNT

    Parameters

    minPixelStability

    number of frames with same pixel color to consider stable
    useHistory

    determines if we’re giving a pixel credit for being stable for a long time
    maxPixelStability

    maximum allowed credit for a pixel in history

  • Creates a CNT Background Subtractor

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorCNT *)
    createBackgroundSubtractorCNT:(int)minPixelStability
                       useHistory:(BOOL)useHistory;

    Swift

    class func createBackgroundSubtractorCNT(minPixelStability: Int32, useHistory: Bool) -> BackgroundSubtractorCNT

    Parameters

    minPixelStability

    number of frames with same pixel color to consider stable
    useHistory

    determines if we’re giving a pixel credit for being stable for a long time

  • Creates a CNT Background Subtractor

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorCNT *)createBackgroundSubtractorCNT:
    (int)minPixelStability;

    Swift

    class func createBackgroundSubtractorCNT(minPixelStability: Int32) -> BackgroundSubtractorCNT

    Parameters

    minPixelStability

    number of frames with same pixel color to consider stable

  • Creates a CNT Background Subtractor

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorCNT *)createBackgroundSubtractorCNT;

    Swift

    class func createBackgroundSubtractorCNT() -> BackgroundSubtractorCNT

  • Creates a GMG Background Subtractor

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGMG *)
    createBackgroundSubtractorGMG:(int)initializationFrames
                decisionThreshold:(double)decisionThreshold;

    Swift

    class func createBackgroundSubtractorGMG(initializationFrames: Int32, decisionThreshold: Double) -> BackgroundSubtractorGMG

    Parameters

    initializationFrames

    number of frames used to initialize the background models.
    decisionThreshold

    Threshold value, above which it is marked foreground, else background.

  • Creates a GMG Background Subtractor

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGMG *)createBackgroundSubtractorGMG:
    (int)initializationFrames;

    Swift

    class func createBackgroundSubtractorGMG(initializationFrames: Int32) -> BackgroundSubtractorGMG

    Parameters

    initializationFrames

    number of frames used to initialize the background models.

  • Creates a GMG Background Subtractor

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGMG *)createBackgroundSubtractorGMG;

    Swift

    class func createBackgroundSubtractorGMG() -> BackgroundSubtractorGMG

  • Creates an instance of BackgroundSubtractorGSOC algorithm.

    Implementation of the different yet better algorithm which is called GSOC, as it was implemented during GSOC and was not originated from any paper.

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGSOC *)
    createBackgroundSubtractorGSOC:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                       replaceRate:(float)replaceRate
                   propagationRate:(float)propagationRate
                     hitsThreshold:(int)hitsThreshold
                             alpha:(float)alpha
                              beta:(float)beta
           blinkingSupressionDecay:(float)blinkingSupressionDecay
      blinkingSupressionMultiplier:(float)blinkingSupressionMultiplier
        noiseRemovalThresholdFacBG:(float)noiseRemovalThresholdFacBG
        noiseRemovalThresholdFacFG:(float)noiseRemovalThresholdFacFG;

    Swift

    class func createBackgroundSubtractorGSOC(mc: LSBPCameraMotionCompensation, nSamples: Int32, replaceRate: Float, propagationRate: Float, hitsThreshold: Int32, alpha: Float, beta: Float, blinkingSupressionDecay: Float, blinkingSupressionMultiplier: Float, noiseRemovalThresholdFacBG: Float, noiseRemovalThresholdFacFG: Float) -> BackgroundSubtractorGSOC

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    replaceRate

    Probability of replacing the old sample - how fast the model will update itself.
    propagationRate

    Probability of propagating to neighbors.
    hitsThreshold

    How many positives the sample must get before it will be considered as a possible replacement.
    alpha

    Scale coefficient for threshold.
    beta

    Bias coefficient for threshold.
    blinkingSupressionDecay

    Blinking supression decay factor.
    blinkingSupressionMultiplier

    Blinking supression multiplier.
    noiseRemovalThresholdFacBG

    Strength of the noise removal for background points.
    noiseRemovalThresholdFacFG

    Strength of the noise removal for foreground points.

  • Creates an instance of BackgroundSubtractorGSOC algorithm.

    Implementation of the different yet better algorithm which is called GSOC, as it was implemented during GSOC and was not originated from any paper.

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGSOC *)
    createBackgroundSubtractorGSOC:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                       replaceRate:(float)replaceRate
                   propagationRate:(float)propagationRate
                     hitsThreshold:(int)hitsThreshold
                             alpha:(float)alpha
                              beta:(float)beta
           blinkingSupressionDecay:(float)blinkingSupressionDecay
      blinkingSupressionMultiplier:(float)blinkingSupressionMultiplier
        noiseRemovalThresholdFacBG:(float)noiseRemovalThresholdFacBG;

    Swift

    class func createBackgroundSubtractorGSOC(mc: LSBPCameraMotionCompensation, nSamples: Int32, replaceRate: Float, propagationRate: Float, hitsThreshold: Int32, alpha: Float, beta: Float, blinkingSupressionDecay: Float, blinkingSupressionMultiplier: Float, noiseRemovalThresholdFacBG: Float) -> BackgroundSubtractorGSOC

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    replaceRate

    Probability of replacing the old sample - how fast the model will update itself.
    propagationRate

    Probability of propagating to neighbors.
    hitsThreshold

    How many positives the sample must get before it will be considered as a possible replacement.
    alpha

    Scale coefficient for threshold.
    beta

    Bias coefficient for threshold.
    blinkingSupressionDecay

    Blinking supression decay factor.
    blinkingSupressionMultiplier

    Blinking supression multiplier.
    noiseRemovalThresholdFacBG

    Strength of the noise removal for background points.

  • Creates an instance of BackgroundSubtractorGSOC algorithm.

    Implementation of the different yet better algorithm which is called GSOC, as it was implemented during GSOC and was not originated from any paper.

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGSOC *)
    createBackgroundSubtractorGSOC:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                       replaceRate:(float)replaceRate
                   propagationRate:(float)propagationRate
                     hitsThreshold:(int)hitsThreshold
                             alpha:(float)alpha
                              beta:(float)beta
           blinkingSupressionDecay:(float)blinkingSupressionDecay
      blinkingSupressionMultiplier:(float)blinkingSupressionMultiplier;

    Swift

    class func createBackgroundSubtractorGSOC(mc: LSBPCameraMotionCompensation, nSamples: Int32, replaceRate: Float, propagationRate: Float, hitsThreshold: Int32, alpha: Float, beta: Float, blinkingSupressionDecay: Float, blinkingSupressionMultiplier: Float) -> BackgroundSubtractorGSOC

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    replaceRate

    Probability of replacing the old sample - how fast the model will update itself.
    propagationRate

    Probability of propagating to neighbors.
    hitsThreshold

    How many positives the sample must get before it will be considered as a possible replacement.
    alpha

    Scale coefficient for threshold.
    beta

    Bias coefficient for threshold.
    blinkingSupressionDecay

    Blinking supression decay factor.
    blinkingSupressionMultiplier

    Blinking supression multiplier.

  • Creates an instance of BackgroundSubtractorGSOC algorithm.

    Implementation of the different yet better algorithm which is called GSOC, as it was implemented during GSOC and was not originated from any paper.

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGSOC *)
    createBackgroundSubtractorGSOC:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                       replaceRate:(float)replaceRate
                   propagationRate:(float)propagationRate
                     hitsThreshold:(int)hitsThreshold
                             alpha:(float)alpha
                              beta:(float)beta
           blinkingSupressionDecay:(float)blinkingSupressionDecay;

    Swift

    class func createBackgroundSubtractorGSOC(mc: LSBPCameraMotionCompensation, nSamples: Int32, replaceRate: Float, propagationRate: Float, hitsThreshold: Int32, alpha: Float, beta: Float, blinkingSupressionDecay: Float) -> BackgroundSubtractorGSOC

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    replaceRate

    Probability of replacing the old sample - how fast the model will update itself.
    propagationRate

    Probability of propagating to neighbors.
    hitsThreshold

    How many positives the sample must get before it will be considered as a possible replacement.
    alpha

    Scale coefficient for threshold.
    beta

    Bias coefficient for threshold.
    blinkingSupressionDecay

    Blinking supression decay factor.

  • Creates an instance of BackgroundSubtractorGSOC algorithm.

    Implementation of the different yet better algorithm which is called GSOC, as it was implemented during GSOC and was not originated from any paper.

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGSOC *)
    createBackgroundSubtractorGSOC:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                       replaceRate:(float)replaceRate
                   propagationRate:(float)propagationRate
                     hitsThreshold:(int)hitsThreshold
                             alpha:(float)alpha
                              beta:(float)beta;

    Swift

    class func createBackgroundSubtractorGSOC(mc: LSBPCameraMotionCompensation, nSamples: Int32, replaceRate: Float, propagationRate: Float, hitsThreshold: Int32, alpha: Float, beta: Float) -> BackgroundSubtractorGSOC

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    replaceRate

    Probability of replacing the old sample - how fast the model will update itself.
    propagationRate

    Probability of propagating to neighbors.
    hitsThreshold

    How many positives the sample must get before it will be considered as a possible replacement.
    alpha

    Scale coefficient for threshold.
    beta

    Bias coefficient for threshold.

  • Creates an instance of BackgroundSubtractorGSOC algorithm.

    Implementation of the different yet better algorithm which is called GSOC, as it was implemented during GSOC and was not originated from any paper.

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGSOC *)
    createBackgroundSubtractorGSOC:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                       replaceRate:(float)replaceRate
                   propagationRate:(float)propagationRate
                     hitsThreshold:(int)hitsThreshold
                             alpha:(float)alpha;

    Swift

    class func createBackgroundSubtractorGSOC(mc: LSBPCameraMotionCompensation, nSamples: Int32, replaceRate: Float, propagationRate: Float, hitsThreshold: Int32, alpha: Float) -> BackgroundSubtractorGSOC

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    replaceRate

    Probability of replacing the old sample - how fast the model will update itself.
    propagationRate

    Probability of propagating to neighbors.
    hitsThreshold

    How many positives the sample must get before it will be considered as a possible replacement.
    alpha

    Scale coefficient for threshold.

  • Creates an instance of BackgroundSubtractorGSOC algorithm.

    Implementation of the different yet better algorithm which is called GSOC, as it was implemented during GSOC and was not originated from any paper.

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGSOC *)
    createBackgroundSubtractorGSOC:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                       replaceRate:(float)replaceRate
                   propagationRate:(float)propagationRate
                     hitsThreshold:(int)hitsThreshold;

    Swift

    class func createBackgroundSubtractorGSOC(mc: LSBPCameraMotionCompensation, nSamples: Int32, replaceRate: Float, propagationRate: Float, hitsThreshold: Int32) -> BackgroundSubtractorGSOC

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    replaceRate

    Probability of replacing the old sample - how fast the model will update itself.
    propagationRate

    Probability of propagating to neighbors.
    hitsThreshold

    How many positives the sample must get before it will be considered as a possible replacement.

  • Creates an instance of BackgroundSubtractorGSOC algorithm.

    Implementation of the different yet better algorithm which is called GSOC, as it was implemented during GSOC and was not originated from any paper.

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGSOC *)
    createBackgroundSubtractorGSOC:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                       replaceRate:(float)replaceRate
                   propagationRate:(float)propagationRate;

    Swift

    class func createBackgroundSubtractorGSOC(mc: LSBPCameraMotionCompensation, nSamples: Int32, replaceRate: Float, propagationRate: Float) -> BackgroundSubtractorGSOC

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    replaceRate

    Probability of replacing the old sample - how fast the model will update itself.
    propagationRate

    Probability of propagating to neighbors.

  • Creates an instance of BackgroundSubtractorGSOC algorithm.

    Implementation of the different yet better algorithm which is called GSOC, as it was implemented during GSOC and was not originated from any paper.

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGSOC *)
    createBackgroundSubtractorGSOC:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                       replaceRate:(float)replaceRate;

    Swift

    class func createBackgroundSubtractorGSOC(mc: LSBPCameraMotionCompensation, nSamples: Int32, replaceRate: Float) -> BackgroundSubtractorGSOC

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    replaceRate

    Probability of replacing the old sample - how fast the model will update itself.

  • Creates an instance of BackgroundSubtractorGSOC algorithm.

    Implementation of the different yet better algorithm which is called GSOC, as it was implemented during GSOC and was not originated from any paper.

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGSOC *)
    createBackgroundSubtractorGSOC:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples;

    Swift

    class func createBackgroundSubtractorGSOC(mc: LSBPCameraMotionCompensation, nSamples: Int32) -> BackgroundSubtractorGSOC

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.

  • Creates an instance of BackgroundSubtractorGSOC algorithm.

    Implementation of the different yet better algorithm which is called GSOC, as it was implemented during GSOC and was not originated from any paper.

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGSOC *)createBackgroundSubtractorGSOC:
    (LSBPCameraMotionCompensation)mc;

    Swift

    class func createBackgroundSubtractorGSOC(mc: LSBPCameraMotionCompensation) -> BackgroundSubtractorGSOC

    Parameters

    mc

    Whether to use camera motion compensation.

  • Creates an instance of BackgroundSubtractorGSOC algorithm.

    Implementation of the different yet better algorithm which is called GSOC, as it was implemented during GSOC and was not originated from any paper.

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorGSOC *)createBackgroundSubtractorGSOC;

    Swift

    class func createBackgroundSubtractorGSOC() -> BackgroundSubtractorGSOC

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)
    createBackgroundSubtractorLSBP:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                        LSBPRadius:(int)LSBPRadius
                            Tlower:(float)Tlower
                            Tupper:(float)Tupper
                              Tinc:(float)Tinc
                              Tdec:(float)Tdec
                            Rscale:(float)Rscale
                           Rincdec:(float)Rincdec
        noiseRemovalThresholdFacBG:(float)noiseRemovalThresholdFacBG
        noiseRemovalThresholdFacFG:(float)noiseRemovalThresholdFacFG
                     LSBPthreshold:(int)LSBPthreshold
                          minCount:(int)minCount;

    Swift

    class func createBackgroundSubtractorLSBP(mc: LSBPCameraMotionCompensation, nSamples: Int32, LSBPRadius: Int32, Tlower: Float, Tupper: Float, Tinc: Float, Tdec: Float, Rscale: Float, Rincdec: Float, noiseRemovalThresholdFacBG: Float, noiseRemovalThresholdFacFG: Float, LSBPthreshold: Int32, minCount: Int32) -> BackgroundSubtractorLSBP

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    LSBPRadius

    LSBP descriptor radius.
    Tlower

    Lower bound for T-values. See CITE: LGuo2016 for details.
    Tupper

    Upper bound for T-values. See CITE: LGuo2016 for details.
    Tinc

    Increase step for T-values. See CITE: LGuo2016 for details.
    Tdec

    Decrease step for T-values. See CITE: LGuo2016 for details.
    Rscale

    Scale coefficient for threshold values.
    Rincdec

    Increase/Decrease step for threshold values.
    noiseRemovalThresholdFacBG

    Strength of the noise removal for background points.
    noiseRemovalThresholdFacFG

    Strength of the noise removal for foreground points.
    LSBPthreshold

    Threshold for LSBP binary string.
    minCount

    Minimal number of matches for sample to be considered as foreground.

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)
    createBackgroundSubtractorLSBP:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                        LSBPRadius:(int)LSBPRadius
                            Tlower:(float)Tlower
                            Tupper:(float)Tupper
                              Tinc:(float)Tinc
                              Tdec:(float)Tdec
                            Rscale:(float)Rscale
                           Rincdec:(float)Rincdec
        noiseRemovalThresholdFacBG:(float)noiseRemovalThresholdFacBG
        noiseRemovalThresholdFacFG:(float)noiseRemovalThresholdFacFG
                     LSBPthreshold:(int)LSBPthreshold;

    Swift

    class func createBackgroundSubtractorLSBP(mc: LSBPCameraMotionCompensation, nSamples: Int32, LSBPRadius: Int32, Tlower: Float, Tupper: Float, Tinc: Float, Tdec: Float, Rscale: Float, Rincdec: Float, noiseRemovalThresholdFacBG: Float, noiseRemovalThresholdFacFG: Float, LSBPthreshold: Int32) -> BackgroundSubtractorLSBP

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    LSBPRadius

    LSBP descriptor radius.
    Tlower

    Lower bound for T-values. See CITE: LGuo2016 for details.
    Tupper

    Upper bound for T-values. See CITE: LGuo2016 for details.
    Tinc

    Increase step for T-values. See CITE: LGuo2016 for details.
    Tdec

    Decrease step for T-values. See CITE: LGuo2016 for details.
    Rscale

    Scale coefficient for threshold values.
    Rincdec

    Increase/Decrease step for threshold values.
    noiseRemovalThresholdFacBG

    Strength of the noise removal for background points.
    noiseRemovalThresholdFacFG

    Strength of the noise removal for foreground points.
    LSBPthreshold

    Threshold for LSBP binary string.

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)
    createBackgroundSubtractorLSBP:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                        LSBPRadius:(int)LSBPRadius
                            Tlower:(float)Tlower
                            Tupper:(float)Tupper
                              Tinc:(float)Tinc
                              Tdec:(float)Tdec
                            Rscale:(float)Rscale
                           Rincdec:(float)Rincdec
        noiseRemovalThresholdFacBG:(float)noiseRemovalThresholdFacBG
        noiseRemovalThresholdFacFG:(float)noiseRemovalThresholdFacFG;

    Swift

    class func createBackgroundSubtractorLSBP(mc: LSBPCameraMotionCompensation, nSamples: Int32, LSBPRadius: Int32, Tlower: Float, Tupper: Float, Tinc: Float, Tdec: Float, Rscale: Float, Rincdec: Float, noiseRemovalThresholdFacBG: Float, noiseRemovalThresholdFacFG: Float) -> BackgroundSubtractorLSBP

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    LSBPRadius

    LSBP descriptor radius.
    Tlower

    Lower bound for T-values. See CITE: LGuo2016 for details.
    Tupper

    Upper bound for T-values. See CITE: LGuo2016 for details.
    Tinc

    Increase step for T-values. See CITE: LGuo2016 for details.
    Tdec

    Decrease step for T-values. See CITE: LGuo2016 for details.
    Rscale

    Scale coefficient for threshold values.
    Rincdec

    Increase/Decrease step for threshold values.
    noiseRemovalThresholdFacBG

    Strength of the noise removal for background points.
    noiseRemovalThresholdFacFG

    Strength of the noise removal for foreground points.

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)
    createBackgroundSubtractorLSBP:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                        LSBPRadius:(int)LSBPRadius
                            Tlower:(float)Tlower
                            Tupper:(float)Tupper
                              Tinc:(float)Tinc
                              Tdec:(float)Tdec
                            Rscale:(float)Rscale
                           Rincdec:(float)Rincdec
        noiseRemovalThresholdFacBG:(float)noiseRemovalThresholdFacBG;

    Swift

    class func createBackgroundSubtractorLSBP(mc: LSBPCameraMotionCompensation, nSamples: Int32, LSBPRadius: Int32, Tlower: Float, Tupper: Float, Tinc: Float, Tdec: Float, Rscale: Float, Rincdec: Float, noiseRemovalThresholdFacBG: Float) -> BackgroundSubtractorLSBP

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    LSBPRadius

    LSBP descriptor radius.
    Tlower

    Lower bound for T-values. See CITE: LGuo2016 for details.
    Tupper

    Upper bound for T-values. See CITE: LGuo2016 for details.
    Tinc

    Increase step for T-values. See CITE: LGuo2016 for details.
    Tdec

    Decrease step for T-values. See CITE: LGuo2016 for details.
    Rscale

    Scale coefficient for threshold values.
    Rincdec

    Increase/Decrease step for threshold values.
    noiseRemovalThresholdFacBG

    Strength of the noise removal for background points.

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)
    createBackgroundSubtractorLSBP:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                        LSBPRadius:(int)LSBPRadius
                            Tlower:(float)Tlower
                            Tupper:(float)Tupper
                              Tinc:(float)Tinc
                              Tdec:(float)Tdec
                            Rscale:(float)Rscale
                           Rincdec:(float)Rincdec;

    Swift

    class func createBackgroundSubtractorLSBP(mc: LSBPCameraMotionCompensation, nSamples: Int32, LSBPRadius: Int32, Tlower: Float, Tupper: Float, Tinc: Float, Tdec: Float, Rscale: Float, Rincdec: Float) -> BackgroundSubtractorLSBP

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    LSBPRadius

    LSBP descriptor radius.
    Tlower

    Lower bound for T-values. See CITE: LGuo2016 for details.
    Tupper

    Upper bound for T-values. See CITE: LGuo2016 for details.
    Tinc

    Increase step for T-values. See CITE: LGuo2016 for details.
    Tdec

    Decrease step for T-values. See CITE: LGuo2016 for details.
    Rscale

    Scale coefficient for threshold values.
    Rincdec

    Increase/Decrease step for threshold values.

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)
    createBackgroundSubtractorLSBP:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                        LSBPRadius:(int)LSBPRadius
                            Tlower:(float)Tlower
                            Tupper:(float)Tupper
                              Tinc:(float)Tinc
                              Tdec:(float)Tdec
                            Rscale:(float)Rscale;

    Swift

    class func createBackgroundSubtractorLSBP(mc: LSBPCameraMotionCompensation, nSamples: Int32, LSBPRadius: Int32, Tlower: Float, Tupper: Float, Tinc: Float, Tdec: Float, Rscale: Float) -> BackgroundSubtractorLSBP

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    LSBPRadius

    LSBP descriptor radius.
    Tlower

    Lower bound for T-values. See CITE: LGuo2016 for details.
    Tupper

    Upper bound for T-values. See CITE: LGuo2016 for details.
    Tinc

    Increase step for T-values. See CITE: LGuo2016 for details.
    Tdec

    Decrease step for T-values. See CITE: LGuo2016 for details.
    Rscale

    Scale coefficient for threshold values.

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)
    createBackgroundSubtractorLSBP:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                        LSBPRadius:(int)LSBPRadius
                            Tlower:(float)Tlower
                            Tupper:(float)Tupper
                              Tinc:(float)Tinc
                              Tdec:(float)Tdec;

    Swift

    class func createBackgroundSubtractorLSBP(mc: LSBPCameraMotionCompensation, nSamples: Int32, LSBPRadius: Int32, Tlower: Float, Tupper: Float, Tinc: Float, Tdec: Float) -> BackgroundSubtractorLSBP

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    LSBPRadius

    LSBP descriptor radius.
    Tlower

    Lower bound for T-values. See CITE: LGuo2016 for details.
    Tupper

    Upper bound for T-values. See CITE: LGuo2016 for details.
    Tinc

    Increase step for T-values. See CITE: LGuo2016 for details.
    Tdec

    Decrease step for T-values. See CITE: LGuo2016 for details.

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)
    createBackgroundSubtractorLSBP:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                        LSBPRadius:(int)LSBPRadius
                            Tlower:(float)Tlower
                            Tupper:(float)Tupper
                              Tinc:(float)Tinc;

    Swift

    class func createBackgroundSubtractorLSBP(mc: LSBPCameraMotionCompensation, nSamples: Int32, LSBPRadius: Int32, Tlower: Float, Tupper: Float, Tinc: Float) -> BackgroundSubtractorLSBP

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    LSBPRadius

    LSBP descriptor radius.
    Tlower

    Lower bound for T-values. See CITE: LGuo2016 for details.
    Tupper

    Upper bound for T-values. See CITE: LGuo2016 for details.
    Tinc

    Increase step for T-values. See CITE: LGuo2016 for details.

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)
    createBackgroundSubtractorLSBP:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                        LSBPRadius:(int)LSBPRadius
                            Tlower:(float)Tlower
                            Tupper:(float)Tupper;

    Swift

    class func createBackgroundSubtractorLSBP(mc: LSBPCameraMotionCompensation, nSamples: Int32, LSBPRadius: Int32, Tlower: Float, Tupper: Float) -> BackgroundSubtractorLSBP

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    LSBPRadius

    LSBP descriptor radius.
    Tlower

    Lower bound for T-values. See CITE: LGuo2016 for details.
    Tupper

    Upper bound for T-values. See CITE: LGuo2016 for details.

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)
    createBackgroundSubtractorLSBP:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                        LSBPRadius:(int)LSBPRadius
                            Tlower:(float)Tlower;

    Swift

    class func createBackgroundSubtractorLSBP(mc: LSBPCameraMotionCompensation, nSamples: Int32, LSBPRadius: Int32, Tlower: Float) -> BackgroundSubtractorLSBP

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    LSBPRadius

    LSBP descriptor radius.
    Tlower

    Lower bound for T-values. See CITE: LGuo2016 for details.

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)
    createBackgroundSubtractorLSBP:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples
                        LSBPRadius:(int)LSBPRadius;

    Swift

    class func createBackgroundSubtractorLSBP(mc: LSBPCameraMotionCompensation, nSamples: Int32, LSBPRadius: Int32) -> BackgroundSubtractorLSBP

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.
    LSBPRadius

    LSBP descriptor radius.

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)
    createBackgroundSubtractorLSBP:(LSBPCameraMotionCompensation)mc
                          nSamples:(int)nSamples;

    Swift

    class func createBackgroundSubtractorLSBP(mc: LSBPCameraMotionCompensation, nSamples: Int32) -> BackgroundSubtractorLSBP

    Parameters

    mc

    Whether to use camera motion compensation.
    nSamples

    Number of samples to maintain at each point of the frame.

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)createBackgroundSubtractorLSBP:
    (LSBPCameraMotionCompensation)mc;

    Swift

    class func createBackgroundSubtractorLSBP(mc: LSBPCameraMotionCompensation) -> BackgroundSubtractorLSBP

    Parameters

    mc

    Whether to use camera motion compensation.

  • Creates an instance of BackgroundSubtractorLSBP algorithm.

    Background Subtraction using Local SVD Binary Pattern. More details about the algorithm can be found at CITE: LGuo2016

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorLSBP *)createBackgroundSubtractorLSBP;

    Swift

    class func createBackgroundSubtractorLSBP() -> BackgroundSubtractorLSBP

  • Creates mixture-of-gaussian background subtractor

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorMOG *)
    createBackgroundSubtractorMOG:(int)history
                        nmixtures:(int)nmixtures
                  backgroundRatio:(double)backgroundRatio
                       noiseSigma:(double)noiseSigma;

    Swift

    class func createBackgroundSubtractorMOG(history: Int32, nmixtures: Int32, backgroundRatio: Double, noiseSigma: Double) -> BackgroundSubtractorMOG

    Parameters

    history

    Length of the history.
    nmixtures

    Number of Gaussian mixtures.
    backgroundRatio

    Background ratio.
    noiseSigma

    Noise strength (standard deviation of the brightness or each color channel). 0 means some automatic value.

  • Creates mixture-of-gaussian background subtractor

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorMOG *)
    createBackgroundSubtractorMOG:(int)history
                        nmixtures:(int)nmixtures
                  backgroundRatio:(double)backgroundRatio;

    Swift

    class func createBackgroundSubtractorMOG(history: Int32, nmixtures: Int32, backgroundRatio: Double) -> BackgroundSubtractorMOG

    Parameters

    history

    Length of the history.
    nmixtures

    Number of Gaussian mixtures.
    backgroundRatio

    Background ratio. means some automatic value.

  • Creates mixture-of-gaussian background subtractor

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorMOG *)createBackgroundSubtractorMOG:(int)history
                                                         nmixtures:
                                                             (int)nmixtures;

    Swift

    class func createBackgroundSubtractorMOG(history: Int32, nmixtures: Int32) -> BackgroundSubtractorMOG

    Parameters

    history

    Length of the history.
    nmixtures

    Number of Gaussian mixtures. means some automatic value.

  • Creates mixture-of-gaussian background subtractor

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorMOG *)createBackgroundSubtractorMOG:(int)history;

    Swift

    class func createBackgroundSubtractorMOG(history: Int32) -> BackgroundSubtractorMOG

    Parameters

    history

    Length of the history. means some automatic value.

  • Creates mixture-of-gaussian background subtractor

    means some automatic value.

    Declaration

    Objective-C

    + (nonnull BackgroundSubtractorMOG *)createBackgroundSubtractorMOG;

    Swift

    class func createBackgroundSubtractorMOG() -> BackgroundSubtractorMOG

  • Creates an instance of SyntheticSequenceGenerator.

    Declaration

    Objective-C

    + (nonnull SyntheticSequenceGenerator *)
    createSyntheticSequenceGenerator:(nonnull Mat *)background
                              object:(nonnull Mat *)object
                           amplitude:(double)amplitude
                          wavelength:(double)wavelength
                           wavespeed:(double)wavespeed
                            objspeed:(double)objspeed;

    Swift

    class func createSyntheticSequenceGenerator(background: Mat, object: Mat, amplitude: Double, wavelength: Double, wavespeed: Double, objspeed: Double) -> SyntheticSequenceGenerator

    Parameters

    background

    Background image for object.
    object

    Object image which will move slowly over the background.
    amplitude

    Amplitude of wave distortion applied to background.
    wavelength

    Length of waves in distortion applied to background.
    wavespeed

    How fast waves will move.
    objspeed

    How fast object will fly over background.

  • Creates an instance of SyntheticSequenceGenerator.

    Declaration

    Objective-C

    + (nonnull SyntheticSequenceGenerator *)
    createSyntheticSequenceGenerator:(nonnull Mat *)background
                              object:(nonnull Mat *)object
                           amplitude:(double)amplitude
                          wavelength:(double)wavelength
                           wavespeed:(double)wavespeed;

    Swift

    class func createSyntheticSequenceGenerator(background: Mat, object: Mat, amplitude: Double, wavelength: Double, wavespeed: Double) -> SyntheticSequenceGenerator

    Parameters

    background

    Background image for object.
    object

    Object image which will move slowly over the background.
    amplitude

    Amplitude of wave distortion applied to background.
    wavelength

    Length of waves in distortion applied to background.
    wavespeed

    How fast waves will move.

  • Creates an instance of SyntheticSequenceGenerator.

    Declaration

    Objective-C

    + (nonnull SyntheticSequenceGenerator *)
    createSyntheticSequenceGenerator:(nonnull Mat *)background
                              object:(nonnull Mat *)object
                           amplitude:(double)amplitude
                          wavelength:(double)wavelength;

    Swift

    class func createSyntheticSequenceGenerator(background: Mat, object: Mat, amplitude: Double, wavelength: Double) -> SyntheticSequenceGenerator

    Parameters

    background

    Background image for object.
    object

    Object image which will move slowly over the background.
    amplitude

    Amplitude of wave distortion applied to background.
    wavelength

    Length of waves in distortion applied to background.

  • Creates an instance of SyntheticSequenceGenerator.

    Declaration

    Objective-C

    + (nonnull SyntheticSequenceGenerator *)
    createSyntheticSequenceGenerator:(nonnull Mat *)background
                              object:(nonnull Mat *)object
                           amplitude:(double)amplitude;

    Swift

    class func createSyntheticSequenceGenerator(background: Mat, object: Mat, amplitude: Double) -> SyntheticSequenceGenerator

    Parameters

    background

    Background image for object.
    object

    Object image which will move slowly over the background.
    amplitude

    Amplitude of wave distortion applied to background.

  • Creates an instance of SyntheticSequenceGenerator.

    Declaration

    Objective-C

    + (nonnull SyntheticSequenceGenerator *)
    createSyntheticSequenceGenerator:(nonnull Mat *)background
                              object:(nonnull Mat *)object;

    Swift

    class func createSyntheticSequenceGenerator(background: Mat, object: Mat) -> SyntheticSequenceGenerator

    Parameters

    background

    Background image for object.
    object

    Object image which will move slowly over the background.