summaryrefslogtreecommitdiffstats
path: root/include/astra/CudaBackProjectionAlgorithm.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/astra/CudaBackProjectionAlgorithm.h')
-rw-r--r--include/astra/CudaBackProjectionAlgorithm.h110
1 files changed, 110 insertions, 0 deletions
diff --git a/include/astra/CudaBackProjectionAlgorithm.h b/include/astra/CudaBackProjectionAlgorithm.h
new file mode 100644
index 0000000..965c734
--- /dev/null
+++ b/include/astra/CudaBackProjectionAlgorithm.h
@@ -0,0 +1,110 @@
+/*
+-----------------------------------------------------------------------
+Copyright 2012 iMinds-Vision Lab, University of Antwerp
+
+Contact: astra@ua.ac.be
+Website: http://astra.ua.ac.be
+
+
+This file is part of the
+All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+
+The ASTRA Toolbox is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+The ASTRA Toolbox is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+
+-----------------------------------------------------------------------
+$Id$
+*/
+
+#ifndef _INC_ASTRA_CUDABACKPROJECTIONALGORITHM
+#define _INC_ASTRA_CUDABACKPROJECTIONALGORITHM
+
+#include "Globals.h"
+#include "Config.h"
+
+#include "CudaReconstructionAlgorithm2D.h"
+
+#ifdef ASTRA_CUDA
+
+namespace astra {
+
+/**
+ * \brief
+ * This class contains a GPU implementation of backprojection.
+ *
+ * \par XML Configuration
+ * \astra_xml_item{ProjectionDataId, integer, Identifier of a projection data object as it is stored in the DataManager.}
+ * \astra_xml_item{ReconstructionDataId, integer, Identifier of a volume data object as it is stored in the DataManager.}
+ *
+ * \par MATLAB example
+ * \astra_code{
+ * cfg = astra_struct('BP_CUDA');\n
+ * cfg.ProjectionDataId = sino_id;\n
+ * cfg.ReconstructionDataId = recon_id;\n
+ * alg_id = astra_mex_algorithm('create'\, cfg);\n
+ * astra_mex_algorithm('iterate'\, alg_id\, 1);\n
+ * astra_mex_algorithm('delete'\, alg_id);\n
+ * }
+ *
+ */
+class _AstraExport CCudaBackProjectionAlgorithm : public CCudaReconstructionAlgorithm2D
+{
+
+public:
+
+ // type of the algorithm, needed to register with CAlgorithmFactory
+ static std::string type;
+
+ /** Default constructor, containing no code.
+ */
+ CCudaBackProjectionAlgorithm();
+
+ /** Destructor.
+ */
+ virtual ~CCudaBackProjectionAlgorithm();
+
+ /** Initialize the algorithm with a config object.
+ *
+ * @param _cfg Configuration Object
+ * @return initialization successful?
+ */
+ virtual bool initialize(const Config& _cfg);
+
+ /** Initialize class.
+ *
+ * @param _pProjector Projector Object. (Ignored)
+ * @param _pSinogram ProjectionData2D object containing the sinogram data.
+ * @param _pReconstruction VolumeData2D object for storing the reconstructed volume.
+ * @param _iGPUindex GPU to use.
+ * @param _iPixelSuperSampling Square root of number of samples per voxel, used to compute the backprojection
+ */
+ bool initialize(CProjector2D* _pProjector,
+ CFloat32ProjectionData2D* _pSinogram,
+ CFloat32VolumeData2D* _pReconstruction,
+ int _iGPUindex = 0, int _iPixelSuperSampling = 1);
+
+ /** Get a description of the class.
+ *
+ * @return description string
+ */
+ virtual std::string description() const;
+};
+
+// inline functions
+inline std::string CCudaBackProjectionAlgorithm::description() const { return CCudaBackProjectionAlgorithm::type; };
+
+} // end namespace
+
+#endif // ASTRA_CUDA
+
+#endif