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-/*
------------------------------------------------------------------------
-Copyright: 2010-2018, imec Vision Lab, University of Antwerp
- 2014-2018, CWI, Amsterdam
-
-Contact: astra@astra-toolbox.com
-Website: http://www.astra-toolbox.com/
-
-This file is part of the 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/>.
-
------------------------------------------------------------------------
-*/
-
-#ifndef _CUDA_EM_H
-#define _CUDA_EM_H
-
-#include "algo.h"
-
-namespace astraCUDA {
-
-class _AstraExport EM : public ReconAlgo {
-public:
- EM();
- virtual ~EM();
-
- // disable some features
- virtual bool enableSinogramMask() { return false; }
- virtual bool enableVolumeMask() { return false; }
- virtual bool setMinConstraint(float) { return false; }
- virtual bool setMaxConstraint(float) { return false; }
-
- virtual bool init();
-
- virtual bool iterate(unsigned int iterations);
-
- virtual float computeDiffNorm();
-
-protected:
- void reset();
- bool precomputeWeights();
-
- // Temporary buffers
- float* D_projData;
- unsigned int projPitch;
-
- float* D_tmpData;
- unsigned int tmpPitch;
-
- // Geometry-specific precomputed data
- float* D_pixelWeight;
- unsigned int pixelPitch;
-};
-
-_AstraExport bool doEM(float* D_volumeData, unsigned int volumePitch,
- float* D_projData, unsigned int projPitch,
- const SDimensions& dims, const float* angles,
- const float* TOffsets, unsigned int iterations);
-
-}
-
-#endif