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 faster methods, such as, Log-Polar 3D (ToMoBAR) or FBP3D (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 (e.g., GPU memory errors). As a 2D/slice-by-slice method, it has the lowest GPU memory footprint and therefore a good choice on systems with very limited GPU memory available.

What are the adjustable parameters:

See the ASTRA’s API for the FBP_CUDA method as the same parameters applicable.