AstraCpuImpl.call_backward

AstraCpuImpl.call_backward(x, out=None, **kwargs)

Run an ASTRA back-projection on the given data using the CPU.

Parameters

proj_dataproj_space.real_space element

Projection data to which the back-projector is applied. Although proj_space may be complex, this element needs to be real.

outvol_space element, optional

Element of the reconstruction space to which the result is written. If None, an element in vol_space is created.

Returns

outvol_space element

Reconstruction data resulting from the application of the back-projector. If out was provided, the returned object is a reference to it.