BP_CUDA

This is a GPU implementation of a simple backprojection algorithm for 2D data sets. It takes projection data as input, and returns the backprojection of this data.

Supported geometries: parallel, fanflat, fanflat_vec.

Configuration options

name

type

description

cfg.ProjectionDataId

required

The astra_mex_data2d ID of the projection data

cfg.ReconstructionDataId

required

The astra_mex_data2d ID for the backprojection data.

cfg.option.GPUindex

optional

Specifies which GPU to use. Default = 0.

cfg.option.PixelSuperSampling

optional

Specifiec the amount of pixel supersampling, i.e., how many (one dimension) subpixels are generated from a single parent pixel.