RingRemovalWaveletfft

Summary

RingRemovalWaveletfft

Process category

Brief description

Computational demand

for typical tomography data

(low, medium, high)

Comment(s)

Reference(s)

Common alternative process(es)

corrector

To suppress ring artefacts.

High

Computationally demanding as it relies on applying Fourier Transform.
Over-aggressive application can lead to new artefacts.

CcpiRingArtefactFilter
RavenFilter

Parameters

Brief description

Savu Configurator command

>>> disp -avv

-------------------------------------------------------------------------------------
 1) RingRemovalWaveletfft(savu.plugins.ring_removal.ring_removal_waveletfft)         
  A plugin removes ring artefacts                                                    
    1)            in_datasets : []
    Create a list of the dataset(s) to process.
    2)                  level : 3
    Wavelet decomposition level.
    3)           out_datasets : []
    Create a list of the dataset(s) to create.
    4)                 nvalue : 5
    Order of the the Daubechies (DB) wavelets.
    5)                  padFT : 20
    Padding for Fourier transform.
    6)                  sigma : 1
    Damping parameter. Larger is stronger.
-------------------------------------------------------------------------------------

>>>

Additional notes

For basic information on this process, please use the disp -av (or disp -avv or disp -v[v] <process index>) command in Savu Configurator (see above). The table below is intended to provide some additional notes on a number of selected topics:

Item	Parameter name	Parameter format	Example(s)		Comment(s)
Item	Parameter name	Parameter format	Parameter value	Effect	Comment(s)
1	in_datasets
2	level
3	out_datasets
4	nvalue
5	padFT
6	sigma

Usage

TBC.

Tomography Reconstruction

RingRemovalWaveletfft

Analytics

Summary

Parameters

Brief description

Additional notes

Usage

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