Merge pull request #75 from wjp/cuda_options

Move supersampling options from Algorithm to CudaProjector

14 files changed, 197 insertions, 73 deletions

diff --git a/include/astra/CudaProjector2D.h b/include/astra/CudaProjector2D.h
index a571851..ecfca41 100644
--- a/include/astra/CudaProjector2D.h
+++ b/include/astra/CudaProjector2D.h
@@ -121,9 +121,15 @@ public:
 	virtual std::string description() const;
 
 
+	Cuda2DProjectionKernel getProjectionKernel() const { return m_projectionKernel; }
+	int getVoxelSuperSampling() const { return m_iVoxelSuperSampling; }
+	int getDetectorSuperSampling() const { return m_iDetectorSuperSampling; }
+
 protected:
 
 	Cuda2DProjectionKernel m_projectionKernel;
+	int m_iVoxelSuperSampling;
+	int m_iDetectorSuperSampling;
 };
 
 //----------------------------------------------------------------------------------------
diff --git a/include/astra/CudaProjector3D.h b/include/astra/CudaProjector3D.h
index a181531..1d570fe 100644
--- a/include/astra/CudaProjector3D.h
+++ b/include/astra/CudaProjector3D.h
@@ -115,11 +115,14 @@ public:
 
 
 	Cuda3DProjectionKernel getProjectionKernel() const { return m_projectionKernel; }
+	int getVoxelSuperSampling() const { return m_iVoxelSuperSampling; }
+	int getDetectorSuperSampling() const { return m_iDetectorSuperSampling; }
 
 protected:
 
 	Cuda3DProjectionKernel m_projectionKernel;
-
+	int m_iVoxelSuperSampling;
+	int m_iDetectorSuperSampling;
 
 };
 
diff --git a/samples/matlab/s010_supersampling.m b/samples/matlab/s010_supersampling.m
index 80f6f56..148f6ad 100644
--- a/samples/matlab/s010_supersampling.m
+++ b/samples/matlab/s010_supersampling.m
@@ -12,23 +12,15 @@ vol_geom = astra_create_vol_geom(256, 256);
 proj_geom = astra_create_proj_geom('parallel', 3.0, 128, linspace2(0,pi,180));
 P = phantom(256);
 
-% Because the astra_create_sino_gpu wrapper does not have support for
-% all possible algorithm options, we manually create a sinogram
-phantom_id = astra_mex_data2d('create', '-vol', vol_geom, P);
-sinogram_id = astra_mex_data2d('create', '-sino', proj_geom);
-cfg = astra_struct('FP_CUDA');
-cfg.VolumeDataId = phantom_id;
-cfg.ProjectionDataId = sinogram_id;
+% We create a projector set up to use 3 rays per detector element
+cfg_proj = astra_struct('cuda');
+cfg_proj.option.DetectorSuperSampling = 3;
+cfg_proj.ProjectionGeometry = proj_geom;
+cfg_proj.VolumeGeometry = vol_geom;
+proj_id = astra_mex_projector('create', cfg_proj);
 
-% Set up 3 rays per detector element
-cfg.option.DetectorSuperSampling = 3;
 
-alg_id = astra_mex_algorithm('create', cfg);
-astra_mex_algorithm('run', alg_id);
-astra_mex_algorithm('delete', alg_id);
-astra_mex_data2d('delete', phantom_id);
-
-sinogram3 = astra_mex_data2d('get', sinogram_id);
+[sinogram3 sinogram_id] = astra_create_sino(P, proj_id);
 
 figure(1); imshow(P, []);
 figure(2); imshow(sinogram3, []);
@@ -39,14 +31,14 @@ rec_id = astra_mex_data2d('create', '-vol', vol_geom);
 cfg = astra_struct('SIRT_CUDA');
 cfg.ReconstructionDataId = rec_id;
 cfg.ProjectionDataId = sinogram_id;
-% Set up 3 rays per detector element
-cfg.option.DetectorSuperSampling = 3;
+cfg.ProjectorId = proj_id;
+
 
 % There is also an option for supersampling during the backprojection step.
 % This should be used if your detector pixels are smaller than the voxels.
 
 % Set up 2 rays per image pixel dimension, for 4 rays total per image pixel.
-% cfg.option.PixelSuperSampling = 2;
+% cfg_proj.option.PixelSuperSampling = 2;
 
 
 alg_id = astra_mex_algorithm('create', cfg);
diff --git a/src/CudaBackProjectionAlgorithm3D.cpp b/src/CudaBackProjectionAlgorithm3D.cpp
index fbb8f28..e8e0433 100644
--- a/src/CudaBackProjectionAlgorithm3D.cpp
+++ b/src/CudaBackProjectionAlgorithm3D.cpp
@@ -32,6 +32,7 @@ $Id$
 
 #include "astra/AstraObjectManager.h"
 
+#include "astra/CudaProjector3D.h"
 #include "astra/ConeProjectionGeometry3D.h"
 #include "astra/ParallelProjectionGeometry3D.h"
 #include "astra/ParallelVecProjectionGeometry3D.h"
@@ -102,9 +103,20 @@ bool CCudaBackProjectionAlgorithm3D::initialize(const Config& _cfg)
 		return false;
 	}
 
+	CCudaProjector3D* pCudaProjector = 0;
+	pCudaProjector = dynamic_cast<CCudaProjector3D*>(m_pProjector);
+	if (!pCudaProjector) {
+		// TODO: Report
+	}
+
 	m_iGPUIndex = (int)_cfg.self.getOptionNumerical("GPUindex", -1);
 	CC.markOptionParsed("GPUindex");
-	m_iVoxelSuperSampling = (int)_cfg.self.getOptionNumerical("VoxelSuperSampling", 1);
+
+
+	m_iVoxelSuperSampling = 1;
+	if (pCudaProjector)
+		m_iVoxelSuperSampling = pCudaProjector->getVoxelSuperSampling();
+	m_iVoxelSuperSampling = (int)_cfg.self.getOptionNumerical("VoxelSuperSampling", m_iVoxelSuperSampling);
 	CC.markOptionParsed("VoxelSuperSampling");
 
 	CFloat32ProjectionData3DMemory* pSinoMem = dynamic_cast<CFloat32ProjectionData3DMemory*>(m_pSinogram);
diff --git a/src/CudaCglsAlgorithm3D.cpp b/src/CudaCglsAlgorithm3D.cpp
index 3457b81..f527dc5 100644
--- a/src/CudaCglsAlgorithm3D.cpp
+++ b/src/CudaCglsAlgorithm3D.cpp
@@ -32,6 +32,7 @@ $Id$
 
 #include "astra/AstraObjectManager.h"
 
+#include "astra/CudaProjector3D.h"
 #include "astra/ConeProjectionGeometry3D.h"
 #include "astra/ParallelVecProjectionGeometry3D.h"
 #include "astra/ConeVecProjectionGeometry3D.h"
@@ -106,12 +107,27 @@ bool CCudaCglsAlgorithm3D::initialize(const Config& _cfg)
 		return false;
 	}
 
+	CCudaProjector3D* pCudaProjector = 0;
+	pCudaProjector = dynamic_cast<CCudaProjector3D*>(m_pProjector);
+	if (!pCudaProjector) {
+		// TODO: Report
+	}
+
 	m_iGPUIndex = (int)_cfg.self.getOptionNumerical("GPUindex", -1);
 	CC.markOptionParsed("GPUindex");
-	m_iDetectorSuperSampling = (int)_cfg.self.getOptionNumerical("DetectorSuperSampling", 1);
-	CC.markOptionParsed("DetectorSuperSampling");
-	m_iVoxelSuperSampling = (int)_cfg.self.getOptionNumerical("VoxelSuperSampling", 1);
+
+	m_iVoxelSuperSampling = 1;
+	m_iDetectorSuperSampling = 1;
+	if (pCudaProjector) {
+		// New interface
+		m_iVoxelSuperSampling = pCudaProjector->getVoxelSuperSampling();
+		m_iDetectorSuperSampling = pCudaProjector->getDetectorSuperSampling();
+	}
+	// Deprecated options
+	m_iVoxelSuperSampling = (int)_cfg.self.getOptionNumerical("VoxelSuperSampling", m_iVoxelSuperSampling);
+	m_iDetectorSuperSampling = (int)_cfg.self.getOptionNumerical("DetectorSuperSampling", m_iDetectorSuperSampling);
 	CC.markOptionParsed("VoxelSuperSampling");
+	CC.markOptionParsed("DetectorSuperSampling");
 
 	m_pCgls = new AstraCGLS3d();
 
diff --git a/src/CudaFDKAlgorithm3D.cpp b/src/CudaFDKAlgorithm3D.cpp
index 467e641..667d926 100644
--- a/src/CudaFDKAlgorithm3D.cpp
+++ b/src/CudaFDKAlgorithm3D.cpp
@@ -32,6 +32,7 @@ $Id$
 
 #include "astra/AstraObjectManager.h"
 
+#include "astra/CudaProjector3D.h"
 #include "astra/ConeProjectionGeometry3D.h"
 
 #include "../cuda/3d/astra3d.h"
@@ -100,9 +101,19 @@ bool CCudaFDKAlgorithm3D::initialize(const Config& _cfg)
 		return false;
 	}
 
+	CCudaProjector3D* pCudaProjector = 0;
+	pCudaProjector = dynamic_cast<CCudaProjector3D*>(m_pProjector);
+	if (!pCudaProjector) {
+		// TODO: Report
+	}
+
 	m_iGPUIndex = (int)_cfg.self.getOptionNumerical("GPUindex", -1);
 	CC.markOptionParsed("GPUindex");
-	m_iVoxelSuperSampling = (int)_cfg.self.getOptionNumerical("VoxelSuperSampling", 1);
+
+	m_iVoxelSuperSampling = 1;
+	if (pCudaProjector)
+		m_iVoxelSuperSampling = pCudaProjector->getVoxelSuperSampling();
+	m_iVoxelSuperSampling = (int)_cfg.self.getOptionNumerical("VoxelSuperSampling", m_iVoxelSuperSampling);
 	CC.markOptionParsed("VoxelSuperSampling");
 
 	m_bShortScan = _cfg.self.getOptionBool("ShortScan", false);
diff --git a/src/CudaFilteredBackProjectionAlgorithm.cpp b/src/CudaFilteredBackProjectionAlgorithm.cpp
index 5d6c166..aac96d6 100644
--- a/src/CudaFilteredBackProjectionAlgorithm.cpp
+++ b/src/CudaFilteredBackProjectionAlgorithm.cpp
@@ -32,6 +32,7 @@ $Id$
 #include <cstring>
 
 #include "astra/AstraObjectManager.h"
+#include "astra/CudaProjector2D.h"
 #include "../cuda/2d/astra.h"
 
 #include "astra/Logging.h"
@@ -77,8 +78,22 @@ bool CCudaFilteredBackProjectionAlgorithm::initialize(const Config& _cfg)
 		clear();
 	}
 
+	// Projector
+	XMLNode node = _cfg.self.getSingleNode("ProjectorId");
+	CCudaProjector2D* pCudaProjector = 0;
+	if (node) {
+		int id = boost::lexical_cast<int>(node.getContent());
+		CProjector2D *projector = CProjector2DManager::getSingleton().get(id);
+		pCudaProjector = dynamic_cast<CCudaProjector2D*>(projector);
+		if (!pCudaProjector) {
+			ASTRA_WARN("non-CUDA Projector2D passed");
+		}
+	}
+	CC.markNodeParsed("ProjectorId");
+
+
 	// sinogram data
-	XMLNode node = _cfg.self.getSingleNode("ProjectionDataId");
+	node = _cfg.self.getSingleNode("ProjectionDataId");
 	ASTRA_CONFIG_CHECK(node, "CudaFBP", "No ProjectionDataId tag specified.");
 	int id = boost::lexical_cast<int>(node.getContent());
 	m_pSinogram = dynamic_cast<CFloat32ProjectionData2D*>(CData2DManager::getSingleton().get(id));
@@ -152,10 +167,16 @@ bool CCudaFilteredBackProjectionAlgorithm::initialize(const Config& _cfg)
 	m_iGPUIndex = (int)_cfg.self.getOptionNumerical("GPUindex", -1);
 	CC.markOptionParsed("GPUindex");
 
-	// Pixel supersampling factor
-	m_iPixelSuperSampling = (int)_cfg.self.getOptionNumerical("PixelSuperSampling", 1);
+	m_iPixelSuperSampling = 1;
+	if (pCudaProjector) {
+		// New interface
+		m_iPixelSuperSampling = pCudaProjector->getVoxelSuperSampling();
+	}
+	// Deprecated options
+	m_iPixelSuperSampling = (int)_cfg.self.getOptionNumerical("PixelSuperSampling", m_iPixelSuperSampling);
 	CC.markOptionParsed("PixelSuperSampling");
 
+
 	// Fan beam short scan mode
 	if (m_pSinogram && dynamic_cast<CFanFlatProjectionGeometry2D*>(m_pSinogram->getGeometry())) {
 		m_bShortScan = (int)_cfg.self.getOptionBool("ShortScan", false);
diff --git a/src/CudaForwardProjectionAlgorithm.cpp b/src/CudaForwardProjectionAlgorithm.cpp
index 0f97d59..b382f2e 100644
--- a/src/CudaForwardProjectionAlgorithm.cpp
+++ b/src/CudaForwardProjectionAlgorithm.cpp
@@ -71,9 +71,24 @@ bool CCudaForwardProjectionAlgorithm::initialize(const Config& _cfg)
 {
 	ASTRA_ASSERT(_cfg.self);
 	ConfigStackCheck<CAlgorithm> CC("CudaForwardProjectionAlgorithm", this, _cfg);
+
+	// Projector
+	XMLNode node = _cfg.self.getSingleNode("ProjectorId");
+	CCudaProjector2D* pCudaProjector = 0;
+	if (node) {
+		int id = boost::lexical_cast<int>(node.getContent());
+		CProjector2D *projector = CProjector2DManager::getSingleton().get(id);
+		pCudaProjector = dynamic_cast<CCudaProjector2D*>(projector);
+		if (!pCudaProjector) {
+			ASTRA_WARN("non-CUDA Projector2D passed to FP_CUDA");
+		}
+	}
+	CC.markNodeParsed("ProjectorId");
+
+
 	
 	// sinogram data
-	XMLNode node = _cfg.self.getSingleNode("ProjectionDataId");
+	node = _cfg.self.getSingleNode("ProjectionDataId");
 	ASTRA_CONFIG_CHECK(node, "FP_CUDA", "No ProjectionDataId tag specified.");
 	int id = boost::lexical_cast<int>(node.getContent());
 	m_pSinogram = dynamic_cast<CFloat32ProjectionData2D*>(CData2DManager::getSingleton().get(id));
@@ -94,21 +109,14 @@ bool CCudaForwardProjectionAlgorithm::initialize(const Config& _cfg)
 		CC.markOptionParsed("GPUIndex");
 
 	// Detector supersampling factor
-	m_iDetectorSuperSampling = (int)_cfg.self.getOptionNumerical("DetectorSuperSampling", 1);
-	CC.markOptionParsed("DetectorSuperSampling");
-
-
-	// This isn't used yet, but passing it is not something to warn about
-	node = _cfg.self.getSingleNode("ProjectorId");
-	if (node) {
-		id = boost::lexical_cast<int>(node.getContent());
-		CProjector2D *projector = CProjector2DManager::getSingleton().get(id);
-		if (!dynamic_cast<CCudaProjector2D*>(projector)) {
-			ASTRA_WARN("non-CUDA Projector2D passed to FP_CUDA");
-		}
+	m_iDetectorSuperSampling = 1;
+	if (pCudaProjector) {
+		// New interface
+		m_iDetectorSuperSampling = pCudaProjector->getDetectorSuperSampling();
 	}
-	CC.markNodeParsed("ProjectorId");
-	
+	// Deprecated option
+	m_iDetectorSuperSampling = (int)_cfg.self.getOptionNumerical("DetectorSuperSampling", m_iDetectorSuperSampling);
+	CC.markOptionParsed("DetectorSuperSampling");
 
 
 	// return success
diff --git a/src/CudaForwardProjectionAlgorithm3D.cpp b/src/CudaForwardProjectionAlgorithm3D.cpp
index e29b5a9..46dab12 100644
--- a/src/CudaForwardProjectionAlgorithm3D.cpp
+++ b/src/CudaForwardProjectionAlgorithm3D.cpp
@@ -97,18 +97,28 @@ bool CCudaForwardProjectionAlgorithm3D::initialize(const Config& _cfg)
 
 	// optional: projector
 	node = _cfg.self.getSingleNode("ProjectorId");
+	CCudaProjector3D* pCudaProjector = 0;
+	m_pProjector = 0;
 	if (node) {
 		id = boost::lexical_cast<int>(node.getContent());
 		m_pProjector = CProjector3DManager::getSingleton().get(id);
-	} else {
-		m_pProjector = 0; // TODO: or manually construct default projector?
+		pCudaProjector = dynamic_cast<CCudaProjector3D*>(CProjector3DManager::getSingleton().get(id));
+		m_pProjector = pCudaProjector;
+		if (!pCudaProjector) {
+			// TODO: Report
+		}
 	}
 	CC.markNodeParsed("ProjectorId");
 
 	// GPU number
 	m_iGPUIndex = (int)_cfg.self.getOptionNumerical("GPUindex", -1);
 	CC.markOptionParsed("GPUindex");
-	m_iDetectorSuperSampling = (int)_cfg.self.getOptionNumerical("DetectorSuperSampling", 1);
+
+
+	m_iDetectorSuperSampling = 1;
+	if (pCudaProjector)
+		m_iDetectorSuperSampling = pCudaProjector->getDetectorSuperSampling();
+	m_iDetectorSuperSampling = (int)_cfg.self.getOptionNumerical("DetectorSuperSampling", m_iDetectorSuperSampling);
 	CC.markOptionParsed("DetectorSuperSampling");
 
 	// success
diff --git a/src/CudaProjector2D.cpp b/src/CudaProjector2D.cpp
index fa024c8..a26e32d 100644
--- a/src/CudaProjector2D.cpp
+++ b/src/CudaProjector2D.cpp
@@ -59,6 +59,8 @@ void CCudaProjector2D::_clear()
 	m_bIsInitialized = false;
 
 	m_projectionKernel = ker2d_default;
+	m_iVoxelSuperSampling = 1;
+	m_iDetectorSuperSampling = 1;
 }
 
 //----------------------------------------------------------------------------------------
@@ -117,6 +119,12 @@ bool CCudaProjector2D::initialize(const Config& _cfg)
 	}
 	CC.markNodeParsed("ProjectionKernel");
 
+	m_iVoxelSuperSampling = (int)_cfg.self.getOptionNumerical("VoxelSuperSampling", 1);
+	CC.markOptionParsed("VoxelSuperSampling");
+ 
+	m_iDetectorSuperSampling = (int)_cfg.self.getOptionNumerical("DetectorSuperSampling", 1);
+	CC.markOptionParsed("DetectorSuperSampling");
+
 	m_bIsInitialized = _check();
 	return m_bIsInitialized;
 }
diff --git a/src/CudaProjector3D.cpp b/src/CudaProjector3D.cpp
index 41529a5..d2fd74c 100644
--- a/src/CudaProjector3D.cpp
+++ b/src/CudaProjector3D.cpp
@@ -62,6 +62,8 @@ void CCudaProjector3D::_clear()
 	m_bIsInitialized = false;
 
 	m_projectionKernel = ker3d_default;
+	m_iVoxelSuperSampling = 1;
+	m_iDetectorSuperSampling = 1;
 }
 
 //----------------------------------------------------------------------------------------
@@ -120,6 +122,12 @@ bool CCudaProjector3D::initialize(const Config& _cfg)
 	}
 	CC.markNodeParsed("ProjectionKernel");
 
+	m_iVoxelSuperSampling = (int)_cfg.self.getOptionNumerical("VoxelSuperSampling", 1);
+	CC.markOptionParsed("VoxelSuperSampling");
+ 
+	m_iDetectorSuperSampling = (int)_cfg.self.getOptionNumerical("DetectorSuperSampling", 1);
+	CC.markOptionParsed("DetectorSuperSampling");
+
 	m_bIsInitialized = _check();
 	return m_bIsInitialized;
 }
diff --git a/src/CudaReconstructionAlgorithm2D.cpp b/src/CudaReconstructionAlgorithm2D.cpp
index db99d42..71b6637 100644
--- a/src/CudaReconstructionAlgorithm2D.cpp
+++ b/src/CudaReconstructionAlgorithm2D.cpp
@@ -95,8 +95,22 @@ bool CCudaReconstructionAlgorithm2D::initialize(const Config& _cfg)
 		clear();
 	}
 
+	// Projector
+	XMLNode node = _cfg.self.getSingleNode("ProjectorId");
+	CCudaProjector2D* pCudaProjector = 0;
+	if (node) {
+		int id = boost::lexical_cast<int>(node.getContent());
+		CProjector2D *projector = CProjector2DManager::getSingleton().get(id);
+		pCudaProjector = dynamic_cast<CCudaProjector2D*>(projector);
+		if (!pCudaProjector) {
+			ASTRA_WARN("non-CUDA Projector2D passed");
+		}
+	}
+	CC.markNodeParsed("ProjectorId");
+
+
 	// sinogram data
-	XMLNode node = _cfg.self.getSingleNode("ProjectionDataId");
+	node = _cfg.self.getSingleNode("ProjectionDataId");
 	ASTRA_CONFIG_CHECK(node, "CudaSirt2", "No ProjectionDataId tag specified.");
 	int id = boost::lexical_cast<int>(node.getContent());
 	m_pSinogram = dynamic_cast<CFloat32ProjectionData2D*>(CData2DManager::getSingleton().get(id));
@@ -161,27 +175,21 @@ bool CCudaReconstructionAlgorithm2D::initialize(const Config& _cfg)
 	if (!_cfg.self.hasOption("GPUindex"))
 		CC.markOptionParsed("GPUIndex");
 
-	// Detector supersampling factor
-	m_iDetectorSuperSampling = (int)_cfg.self.getOptionNumerical("DetectorSuperSampling", 1);
+	// Supersampling factors
+	m_iDetectorSuperSampling = 1;
+	m_iPixelSuperSampling = 1;
+	if (pCudaProjector) {
+		// New interface
+		m_iDetectorSuperSampling = pCudaProjector->getDetectorSuperSampling();
+		m_iPixelSuperSampling = pCudaProjector->getVoxelSuperSampling();
+	}
+	// Deprecated options
+	m_iDetectorSuperSampling = (int)_cfg.self.getOptionNumerical("DetectorSuperSampling", m_iDetectorSuperSampling);
+	m_iPixelSuperSampling = (int)_cfg.self.getOptionNumerical("PixelSuperSampling", m_iPixelSuperSampling);
 	CC.markOptionParsed("DetectorSuperSampling");
-
-	// Pixel supersampling factor
-	m_iPixelSuperSampling = (int)_cfg.self.getOptionNumerical("PixelSuperSampling", 1);
 	CC.markOptionParsed("PixelSuperSampling");
 
 
-	// This isn't used yet, but passing it is not something to warn about
-	node = _cfg.self.getSingleNode("ProjectorId");
-	if (node) {
-		id = boost::lexical_cast<int>(node.getContent());
-		CProjector2D *projector = CProjector2DManager::getSingleton().get(id);
-		if (!dynamic_cast<CCudaProjector2D*>(projector)) {
-			ASTRA_WARN("non-CUDA Projector2D passed");
-		}
-	}
-	CC.markNodeParsed("ProjectorId");
-
-
 	return _check();
 }
 
diff --git a/src/CudaSirtAlgorithm3D.cpp b/src/CudaSirtAlgorithm3D.cpp
index 5ad131b..abbb9fd 100644
--- a/src/CudaSirtAlgorithm3D.cpp
+++ b/src/CudaSirtAlgorithm3D.cpp
@@ -36,6 +36,7 @@ $Id$
 #include "astra/ParallelProjectionGeometry3D.h"
 #include "astra/ParallelVecProjectionGeometry3D.h"
 #include "astra/ConeVecProjectionGeometry3D.h"
+#include "astra/CudaProjector3D.h"
 
 #include "../cuda/3d/astra3d.h"
 
@@ -107,12 +108,28 @@ bool CCudaSirtAlgorithm3D::initialize(const Config& _cfg)
 		return false;
 	}
 
+	CCudaProjector3D* pCudaProjector = 0;
+	pCudaProjector = dynamic_cast<CCudaProjector3D*>(m_pProjector);
+	if (!pCudaProjector) {
+		// TODO: Report
+	}
+
 	m_iGPUIndex = (int)_cfg.self.getOptionNumerical("GPUindex", -1);
 	CC.markOptionParsed("GPUindex");
-	m_iDetectorSuperSampling = (int)_cfg.self.getOptionNumerical("DetectorSuperSampling", 1);
-	CC.markOptionParsed("DetectorSuperSampling");
-	m_iVoxelSuperSampling = (int)_cfg.self.getOptionNumerical("VoxelSuperSampling", 1);
+
+
+	m_iVoxelSuperSampling = 1;
+	m_iDetectorSuperSampling = 1;
+	if (pCudaProjector) {
+		// New interface
+		m_iVoxelSuperSampling = pCudaProjector->getVoxelSuperSampling();
+		m_iDetectorSuperSampling = pCudaProjector->getDetectorSuperSampling();
+	}
+	// Deprecated options
+	m_iVoxelSuperSampling = (int)_cfg.self.getOptionNumerical("VoxelSuperSampling", m_iVoxelSuperSampling);
+	m_iDetectorSuperSampling = (int)_cfg.self.getOptionNumerical("DetectorSuperSampling", m_iDetectorSuperSampling);
 	CC.markOptionParsed("VoxelSuperSampling");
+	CC.markOptionParsed("DetectorSuperSampling");
 
 	m_pSirt = new AstraSIRT3d();
 
diff --git a/src/ReconstructionAlgorithm3D.cpp b/src/ReconstructionAlgorithm3D.cpp
index 86b8ab2..f975ace 100644
--- a/src/ReconstructionAlgorithm3D.cpp
+++ b/src/ReconstructionAlgorithm3D.cpp
@@ -106,14 +106,18 @@ bool CReconstructionAlgorithm3D::initialize(const Config& _cfg)
 
 	XMLNode node;
 	int id;
-#if 0
+
 	// projector
-	node = _cfg.self->getSingleNode("ProjectorId");
-	ASTRA_CONFIG_CHECK(node, "Reconstruction3D", "No ProjectorId tag specified.");
-	id = boost::lexical_cast<int>(node->getContent());
-	m_pProjector = CProjector3DManager::getSingleton().get(id);
-	ASTRA_DELETE(node);
-#endif
+	node = _cfg.self.getSingleNode("ProjectorId");
+	m_pProjector = 0;
+	if (node) {
+		id = boost::lexical_cast<int>(node.getContent());
+		m_pProjector = CProjector3DManager::getSingleton().get(id);
+		if (!m_pProjector) {
+			// TODO: Report
+		}
+	}
+	CC.markNodeParsed("ProjectorId");
 
 	// sinogram data
 	node = _cfg.self.getSingleNode("ProjectionDataId");