class RemoveUnresponsiveAndFluctuatingRings

detect_stripe(listdata, snr)

Algorithm 4 in the paper. To locate stripe positions.

Parameters

• listdata (1D normalized array.) –

• snr (Ratio (>1.0) used to detect stripe locations.) –

Returns

listmask

Return type

1D binary mask.

pre_process()

This method is called immediately after base_pre_process().

process_frames(data)

This method is called after the plugin has been created by the pipeline framework and forms the main processing step

Parameters

data (list(np.array)) – A list of numpy arrays for each input dataset.

remove_large_stripe(matindex, sinogram, snr, size)

Algorithm 5 in the paper. To remove large stripes.

Parameters

• sinogram (2D array.) –

• snr (Ratio (>1.0) used to detect stripe locations.) –

• size (Window size of the median filter.) –

Returns

sinogram

Return type

stripe-removed sinogram.

setup()

This method is first to be called after the plugin has been created. It determines input/output datasets and plugin specific dataset information such as the pattern (e.g. sinogram/projection).