#include <StationaryWaveletPacketTree.h>

Inheritance diagram for panwave::StationaryWaveletPacketTree:

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Collaboration diagram for panwave::StationaryWaveletPacketTree:

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Public Member Functions
	StationaryWaveletPacketTree (size_t height, const Wavelet *wavelet, PaddingMode padding_mode=PaddingMode::Zeroes)

void	Decompose () override

void	Reconstruct (size_t level) override

Public Member Functions inherited from panwave::WaveletPacketTreeTemplateBase< 4 >
	WaveletPacketTreeTemplateBase (size_t height, const Wavelet *wavelet)

void	SetRootSignal (const std::vector< double > *signal) override

const std::vector< double > *	GetRootSignal () override

size_t	GetWaveletLevelCount () const override

Public Member Functions inherited from panwave::Tree< WaveletPacketTreeBase::WaveletPacketTreeNodeData, k >
	Tree (size_t height)

Public Member Functions inherited from panwave::WaveletPacketTreeBase
	WaveletPacketTreeBase (const WaveletPacketTreeBase &)=delete

	WaveletPacketTreeBase (const WaveletPacketTreeBase &&)=delete

WaveletPacketTreeBase &	operator= (const WaveletPacketTreeBase &)=delete

WaveletPacketTreeBase &	operator= (const WaveletPacketTreeBase &&)=delete

virtual size_t	GetWaveletLevelCount () const =0

Protected Member Functions
void	DecomposeNode (size_t node)

void	ReconstructNode (size_t node)

void	ReconstructAccumulate (size_t leaf_node, std::vector< double > *accumulated_signal)

Protected Member Functions inherited from panwave::Tree< WaveletPacketTreeBase::WaveletPacketTreeNodeData, k >
size_t	GetLeafCount () const

size_t	GetFirstLeaf () const

size_t	GetLastLeaf () const

bool	IsLeaf (size_t node) const

size_t	GetChild (size_t parent, size_t child_index) const

size_t	GetParent (size_t child) const

WaveletPacketTreeBase::WaveletPacketTreeNodeData &	GetNodeData (size_t index)

bool	IsMarked (size_t node) const

void	SetMark (size_t node)

void	Unmark ()

size_t	GetHeight () const

Additional Inherited Members
Protected Attributes inherited from panwave::WaveletPacketTreeTemplateBase< 4 >
const Wavelet *	wavelet_

Detailed Description

A wavelet packet tree which tries to keep the reconstructed signals stationary in time. This has the effect of producing smoother reconstructed signals compared to a conventional wavelet packet tree decomposition.
This is implemented as a quad tree where the signal of each node is decomposed into four children signals. The four signals produced are the details and approximate coefficients downsampled dyadically in both even and odd dyadic modes.

See also: WaveletPacketTree

Constructor & Destructor Documentation

◆ StationaryWaveletPacketTree()

panwave::StationaryWaveletPacketTree::StationaryWaveletPacketTree	(	size_t	height,
		const Wavelet *	wavelet,
		PaddingMode	padding_mode = `PaddingMode::Zeroes`
	)

Construct a StationaryWaveletPacketTree instance.
Root signal is initially unset. Set it before calling Decompose.

Parameters

height	Height of the tree. A tree with only one root node has height of 1.
wavelet	Wavelet object used during decomposition / reconstruction.
padding_mode	How we should pad the signal data during decomposition / reconstruction. (default: Zeroes)

See also: Wavelet; Decompose; Reconstruct

Member Function Documentation

◆ Decompose()

void panwave::StationaryWaveletPacketTree::Decompose ( )

overridevirtual

Perform a wavelet packet tree decomposition.
Starting with the root node, decomposes recursively every node in the tree stopping at the leaf nodes.
This is not a sparse decomposition, all nodes will have decomposed signal data after executing.

See also: SetRootSignal

Implements panwave::WaveletPacketTreeBase.

◆ Reconstruct()

void panwave::StationaryWaveletPacketTree::Reconstruct ( size_t level )

overridevirtual

Reconstruct an isolated wavelet level.
Beginning at the leaf nodes, recursively reconstruct up all levels of the tree stopping at the root node.
Upon completion, the root signal will contain the reconstructed signal.

Parameters

level The wavelet level we should isolate and reconstruct.

See also: GetRootSignal

Implements panwave::WaveletPacketTreeBase.

◆ ReconstructAccumulate()

void panwave::StationaryWaveletPacketTree::ReconstructAccumulate	(	size_t	leaf_node,
		std::vector< double > *	accumulated_signal
	)

protected

Isolates one leaf and reconstructs the root signal. The root signal is accumulated into accumulated_signal.

Parameters

leaf_node	The leaf node we want to isolate.
accumulated_signal	Vector in which we will add the root signal after isolating the leaf and reconstructing the signal.

The documentation for this class was generated from the following files:

src/StationaryWaveletPacketTree.h
src/StationaryWaveletPacketTree.cc

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ StationaryWaveletPacketTree()

Member Function Documentation

◆ Decompose()

◆ Reconstruct()

◆ ReconstructAccumulate()