CcpiRingArtefactFilter

Summary

CcpiRingArtefactFilter

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.

Low

Implements the same ring-suppression algorithm as that used by the tomo-centre & tomo-recon commands.
Over-aggressive application can lead to new artefacts in the form of dark rings ('shadows').

An analytical formula for ring artefact suppression in X-ray tomography and references therein.

RingRemovalWaveletfft
RavenFilter

Parameters

Brief description

Savu Configurator command

>>> disp -avv

-------------------------------------------------------------------------------------
 1) CcpiRingArtefactFilter(savu.plugins.ring_removal.ccpi_ring_artefact_filter)      
  A plugin to perform ring artefact removal                                          
    1)             num_series : 1
    High aspect ration compensation (for plate-like objects only) .
    2)                param_r : 0.005
    The correction strength - decrease (typically in order of magnitude steps) to
    increase ring supression, or increase to reduce ring supression.
    3)            in_datasets : []
    Create a list of the dataset(s) to process.
    4)           out_datasets : []
    Create a list of the dataset(s) to create.
    5)                param_n : 0
    Unknown description (for plate-like objects only).
-------------------------------------------------------------------------------------

>>>

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	num_series
2	param_r
3	in_datasets
4	out_datasets
5	param_n

Usage

TBC.

Tomography Reconstruction

CcpiRingArtefactFilter

Analytics

Summary

Parameters

Brief description

Additional notes

Usage

Related content