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diff --git a/include/astra/SparseMatrixProjector2D.inl b/include/astra/SparseMatrixProjector2D.inl
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+/*
+-----------------------------------------------------------------------
+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/>.
+
+-----------------------------------------------------------------------
+$Id$
+*/
+
+
+//----------------------------------------------------------------------------------------
+// PROJECT ALL 
+template <typename Policy>
+void CSparseMatrixProjector2D::project(Policy& p)
+{
+	ASTRA_ASSERT(m_bIsInitialized);
+
+	for (int i = 0; i < m_pProjectionGeometry->getProjectionAngleCount(); ++i)
+		for (int j = 0; j < m_pProjectionGeometry->getDetectorCount(); ++j)
+			projectSingleRay(i, j, p);
+}
+
+
+//----------------------------------------------------------------------------------------
+// PROJECT SINGLE PROJECTION
+template <typename Policy>
+void CSparseMatrixProjector2D::projectSingleProjection(int _iProjection, Policy& p)
+{
+	ASTRA_ASSERT(m_bIsInitialized);
+
+	for (int j = 0; j < m_pProjectionGeometry->getDetectorCount(); ++j)
+		projectSingleRay(_iProjection, j, p);
+}
+
+
+//----------------------------------------------------------------------------------------
+// PROJECT SINGLE RAY
+template <typename Policy>
+void CSparseMatrixProjector2D::projectSingleRay(int _iProjection, int _iDetector, Policy& p)
+{
+	ASTRA_ASSERT(m_bIsInitialized);
+
+	int iRayIndex = _iProjection * m_pProjectionGeometry->getDetectorCount() + _iDetector;
+	const CSparseMatrix* pMatrix = dynamic_cast<CSparseMatrixProjectionGeometry2D*>(m_pProjectionGeometry)->getMatrix();
+
+	// POLICY: RAY PRIOR
+	if (!p.rayPrior(iRayIndex)) return;
+
+	const unsigned int* piColIndices;
+	const float32* pfValues;
+	unsigned int iSize;
+
+	pMatrix->getRowData(iRayIndex, iSize, pfValues, piColIndices);
+
+	for (unsigned int i = 0; i < iSize; ++i) {
+		unsigned int iVolumeIndex = piColIndices[i];
+
+		// POLICY: PIXEL PRIOR
+		if (p.pixelPrior(iVolumeIndex)) {
+				
+			// POLICY: ADD
+			p.addWeight(iRayIndex, iVolumeIndex, pfValues[i]);
+
+			// POLICY: PIXEL POSTERIOR
+			p.pixelPosterior(iVolumeIndex);
+		}
+	}
+
+	// POLICY: RAY POSTERIOR
+	p.rayPosterior(iRayIndex);
+}