xample of PSF reconstruction is included as well. Sensitivity image is obtained with backprojection, but can also be omitted by simply having only one output parameter.</span></div><div  class = 'S1'><span>All selected corrections are applied to the forward and/or backward projections. If you wish to use different projectors for the forward or backward projections, you need to manually set options.projector_type between them. E.g. compute forward projection when</span><span style=' font-family: monospace;'>