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diff --git a/docs/filters.rst b/docs/filters.rst index 5227f3b..00e4e1b 100644 --- a/docs/filters.rst +++ b/docs/filters.rst @@ -1094,6 +1094,67 @@ Tomographic backprojection Height of the region of interest. The default value of 0 denotes full height. +Tomographic Stacked backprojection +---------------------------------- + +.. gobj:class:: stacked-backproject + + Computes the backprojection of multiple sinograms in parallel. + Stream multiple sinograms by introducing a stack filter of certain size + before this filter. + A suitable minimum stack size must be specified based on precision mode + + 1. single - 2 + 2. half - 4 + 3. int8 - 4 + + .. gobj:prop:: num-projections:uint + + Number of projections between 0 and 180 degrees + + .. gobj:prop:: offset:uint + + Offset to the first projection. + + .. gobj:prop:: axis-pos:double + + Position of the rotation axis in horizontal pixel dimension of a + sinogram or projection. If not given, the center of the sinogram is + assumed. + + .. gobj:prop:: angle-step:double + + Angle step increment in radians. If not given, pi divided by height + of input sinogram is assumed. + + .. gobj:prop:: angle-offset:double + + Constant angle offset in radians. This determines effectively the + starting angle. + + .. gobj:prop:: roi-x:uint + + Horizontal coordinate of the start of the ROI. By default 0. + + .. gobj:prop:: roi-y:uint + + Vertical coordinate of the start of the ROI. By default 0. + + .. gobj:prop:: roi-width:uint + + Width of the region of interest. The default value of 0 denotes full + width. + + .. gobj:prop:: roi-height:uint + + Height of the region of interest. The default value of 0 denotes full + height. + + .. gobj:prop:: precision-mode:enum + + Precision mode or storage format which can be ``single`` or ``half`` + or ``int8`` + Correspondingly it represents storage in 32, 16 and 8-bits. Forward projection ------------------ |