From 43a38c117405f99e3a1b498f899de4ba6d01a044 Mon Sep 17 00:00:00 2001 From: Willem Jan Palenstijn Date: Wed, 7 Oct 2015 18:14:39 +0200 Subject: Improve option passing through CudaProjector3D Not all constructors were reading options from the projector. Also allow passing GPUIndex via CudaProjector3D. Thanks to Nicola Vigano for part of the patch. --- include/astra/CudaSirtAlgorithm3D.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/astra/CudaSirtAlgorithm3D.h') diff --git a/include/astra/CudaSirtAlgorithm3D.h b/include/astra/CudaSirtAlgorithm3D.h index fda4635..379720e 100644 --- a/include/astra/CudaSirtAlgorithm3D.h +++ b/include/astra/CudaSirtAlgorithm3D.h @@ -175,6 +175,8 @@ protected: bool m_bAstraSIRTInit; int m_iDetectorSuperSampling; int m_iVoxelSuperSampling; + + void initializeFromProjector(); }; // inline functions -- cgit v1.2.3 From 16430239d04ff738a21146c410918c285552543f Mon Sep 17 00:00:00 2001 From: Willem Jan Palenstijn Date: Wed, 23 Mar 2016 15:50:24 +0100 Subject: Add relaxation parameters to SIRT3D --- include/astra/CudaSirtAlgorithm3D.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/astra/CudaSirtAlgorithm3D.h') diff --git a/include/astra/CudaSirtAlgorithm3D.h b/include/astra/CudaSirtAlgorithm3D.h index 379720e..60191cd 100644 --- a/include/astra/CudaSirtAlgorithm3D.h +++ b/include/astra/CudaSirtAlgorithm3D.h @@ -50,7 +50,7 @@ class AstraSIRT3d; * * The update step of pixel \f$v_j\f$ for iteration \f$k\f$ is given by: * \f[ - * v_j^{(k+1)} = v_j^{(k)} + \alpha \sum_{i=1}^{M} \left( \frac{w_{ij}\left( p_i - \sum_{r=1}^{N} w_{ir}v_r^{(k)}\right)}{\sum_{k=1}^{N} w_{ik}} \right) \frac{1}{\sum_{l=1}^{M}w_{lj}} + * v_j^{(k+1)} = v_j^{(k)} + \lambda \sum_{i=1}^{M} \left( \frac{w_{ij}\left( p_i - \sum_{r=1}^{N} w_{ir}v_r^{(k)}\right)}{\sum_{k=1}^{N} w_{ik}} \right) \frac{1}{\sum_{l=1}^{M}w_{lj}} * \f] * * \par XML Configuration @@ -175,6 +175,7 @@ protected: bool m_bAstraSIRTInit; int m_iDetectorSuperSampling; int m_iVoxelSuperSampling; + float m_fLambda; void initializeFromProjector(); }; -- cgit v1.2.3