C# Class Kinect.JointPositionsFilter

Implementation of a Holt Double Exponential Smoothing filter. The double exponential smooths the curve and predicts. There is also noise jitter removal. And maximum prediction bounds. The parameters are commented in the Init function.

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Public Methods

Method	Description
Init ( ) : void
Init ( KinectInterop smoothParameters ) : void
Init ( float smoothingValue, float correctionValue, float predictionValue, float jitterRadiusValue, float maxDeviationRadiusValue ) : void	Initialize the filter with a set of manually specified TransformSmoothParameters.
JointPositionsFilter ( ) : System
Reset ( ) : void
UpdateFilter ( KinectInterop &bodyFrame ) : void

Private Methods

Method	Description
FilterBodyJoints ( KinectInterop &bodyData, int bodyIndex, KinectInterop &tempSmoothingParams ) : void
FilterJoint ( Vector3 rawPosition, int bodyIndex, int jointIndex, KinectInterop &smoothingParameters ) : Vector3

Method Details

Init() public method

public Init ( ) : void
return	void

Init() public method

public Init ( KinectInterop smoothParameters ) : void
smoothParameters	KinectInterop
return	void

Init() public method

Initialize the filter with a set of manually specified TransformSmoothParameters.

public Init ( float smoothingValue, float correctionValue, float predictionValue, float jitterRadiusValue, float maxDeviationRadiusValue ) : void
smoothingValue	float	Smoothing = [0..1], lower values is closer to the raw data and more noisy.
correctionValue	float	Correction = [0..1], higher values correct faster and feel more responsive.
predictionValue	float	Prediction = [0..n], how many frames into the future we want to predict.
jitterRadiusValue	float	JitterRadius = The deviation distance in m that defines jitter.
maxDeviationRadiusValue	float	MaxDeviation = The maximum distance in m that filtered positions are allowed to deviate from raw data.
return	void

JointPositionsFilter() public method

public JointPositionsFilter ( ) : System
return	System

Reset() public method

public Reset ( ) : void
return	void

UpdateFilter() public method

public UpdateFilter ( KinectInterop &bodyFrame ) : void
bodyFrame	KinectInterop
return	void