/
FBP2D_SPECT.par
47 lines (36 loc) · 1.44 KB
/
FBP2D_SPECT.par
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FBP2DParameters :=
; Example file to run FBP on SPECT data
input file := input.hs
output filename prefix := fbp_recon
; output image parameters
; zoom defaults to 1
zoom := 1
; image size defaults to whole FOV
xy output image size (in pixels) := 180
; you NEED to set this to the number of z-position in your data.
; otherwise, things will currently go wrong
Z output image size (in pixels):=64
; filter parameters, default to pure ramp
; choose alpha < 1 for a Hamming window
alpha parameter for ramp filter := 1
; cut-off (max 0.5 for no cut-off (i.e. at Nyquist)
cut-off for ramp filter (in cycles) := 0.5
; you need to use the SPECT UB projection matrix for back projection
Back Projector type:= matrix
Back Projector Using Matrix Parameters :=
Matrix type := SPECT UB
Projection Matrix By Bin SPECT UB Parameters:=
; has to be Geometrical for FBP
psf type:= Geometrical
;Attenuation correction has to be off for FBP
attenuation type := No
; you could use a mask to backproject only to a part of the image
; this will save time and memory
;Mask properties { Cylinder // Attenuation Map // Explicit Mask // No}
mask type := No
mask file := mask.hv
; no point in keeping things in memory as FBP runs the projector only once
keep all views in cache := 0
End Projection Matrix By Bin SPECT UB Parameters:=
End Back Projector Using Matrix Parameters :=
end:=