FBP2D (ASTRA-Toolbox)

Description

This module performs Filtered-Back-projection direct reconstruction using ASTRA-Toolbox. It is an implementation of parallel-beam FBP_CUDA reconstruction method by ASTRA.

Note

This is the slowest (slice-by-slice) direct reconstruction method in the library and it is recommended to use other methods, such as, FBP3D (ToMoBAR) or Log-Polar 3D (ToMoBAR).

Where and how to use it:

This reconstruction method can be used as a back-up option if other reconstruction algorithms do not work for some reason or deliver incorrect results. Being a 2D/slice-by-slice method, it has the lowest GPU memory requirements and therefore a good choice on systems with very limited GPU memory available.

What are the adjustable parameters:

See ASTRA’s API for the FBP_CUDA method.