diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/CudaSartAlgorithm.cpp | 17 | ||||
| -rw-r--r-- | src/CudaSirtAlgorithm.cpp | 6 | ||||
| -rw-r--r-- | src/SartAlgorithm.cpp | 8 | ||||
| -rw-r--r-- | src/SirtAlgorithm.cpp | 11 |
4 files changed, 38 insertions, 4 deletions
diff --git a/src/CudaSartAlgorithm.cpp b/src/CudaSartAlgorithm.cpp index d202847..bf97224 100644 --- a/src/CudaSartAlgorithm.cpp +++ b/src/CudaSartAlgorithm.cpp @@ -107,7 +107,8 @@ bool CCudaSartAlgorithm::initialize(const Config& _cfg) CC.markOptionParsed("ProjectionOrderList"); } - + m_fLambda = _cfg.self.getOptionNumerical("Relaxation", 1.0f); + CC.markOptionParsed("Relaxation"); return true; } @@ -123,12 +124,26 @@ bool CCudaSartAlgorithm::initialize(CProjector2D* _pProjector, if (!m_bIsInitialized) return false; + m_fLambda = 1.0f; + m_pAlgo = new astraCUDA::SART(); m_bAlgoInit = false; return true; } +//---------------------------------------------------------------------------------------- + +void CCudaSartAlgorithm::initCUDAAlgorithm() +{ + CCudaReconstructionAlgorithm2D::initCUDAAlgorithm(); + + astraCUDA::SART* pSart = dynamic_cast<astraCUDA::SART*>(m_pAlgo); + + pSart->setRelaxation(m_fLambda); +} + + } // namespace astra diff --git a/src/CudaSirtAlgorithm.cpp b/src/CudaSirtAlgorithm.cpp index 7beb30e..c8dc677 100644 --- a/src/CudaSirtAlgorithm.cpp +++ b/src/CudaSirtAlgorithm.cpp @@ -50,6 +50,8 @@ CCudaSirtAlgorithm::CCudaSirtAlgorithm() m_pMinMask = 0; m_pMaxMask = 0; + + m_fLambda = 1.0f; } //---------------------------------------------------------------------------------------- @@ -86,6 +88,8 @@ bool CCudaSirtAlgorithm::initialize(const Config& _cfg) } CC.markOptionParsed("MaxMaskId"); + m_fLambda = _cfg.self.getOptionNumerical("Relaxation", 1.0f); + CC.markOptionParsed("Relaxation"); m_pAlgo = new astraCUDA::SIRT(); m_bAlgoInit = false; @@ -108,6 +112,7 @@ bool CCudaSirtAlgorithm::initialize(CProjector2D* _pProjector, m_pAlgo = new astraCUDA::SIRT(); m_bAlgoInit = false; + m_fLambda = 1.0f; return true; } @@ -130,6 +135,7 @@ void CCudaSirtAlgorithm::initCUDAAlgorithm() ASTRA_ASSERT(ok); } + pSirt->setRelaxation(m_fLambda); } diff --git a/src/SartAlgorithm.cpp b/src/SartAlgorithm.cpp index 9346160..403f851 100644 --- a/src/SartAlgorithm.cpp +++ b/src/SartAlgorithm.cpp @@ -151,6 +151,9 @@ bool CSartAlgorithm::initialize(const Config& _cfg) CC.markOptionParsed("ProjectionOrderList"); } + m_fLambda = _cfg.self.getOptionNumerical("Relaxation", 1.0f); + CC.markOptionParsed("Relaxation"); + // create data objects m_pTotalRayLength = new CFloat32ProjectionData2D(m_pProjector->getProjectionGeometry()); m_pTotalPixelWeight = new CFloat32VolumeData2D(m_pProjector->getVolumeGeometry()); @@ -246,6 +249,7 @@ map<string,boost::any> CSartAlgorithm::getInformation() { map<string, boost::any> res; res["ProjectionOrder"] = getInformation("ProjectionOrder"); + res["Relaxation"] = getInformation("Relaxation"); return mergeMap<string,boost::any>(CReconstructionAlgorithm2D::getInformation(), res); }; @@ -253,6 +257,8 @@ map<string,boost::any> CSartAlgorithm::getInformation() // Information - Specific boost::any CSartAlgorithm::getInformation(std::string _sIdentifier) { + if (_sIdentifier == "Relaxation") + return m_fLambda; if (_sIdentifier == "ProjectionOrder") { vector<float32> res; for (int i = 0; i < m_iProjectionCount; i++) { @@ -286,7 +292,7 @@ void CSartAlgorithm::run(int _iNrIterations) m_pProjector, SinogramMaskPolicy(m_pSinogramMask), // sinogram mask ReconstructionMaskPolicy(m_pReconstructionMask), // reconstruction mask - SIRTBPPolicy(m_pReconstruction, m_pDiffSinogram, m_pTotalPixelWeight, m_pTotalRayLength), // SIRT backprojection + SIRTBPPolicy(m_pReconstruction, m_pDiffSinogram, m_pTotalPixelWeight, m_pTotalRayLength, m_fLambda), // SIRT backprojection m_bUseSinogramMask, m_bUseReconstructionMask, true // options on/off ); diff --git a/src/SirtAlgorithm.cpp b/src/SirtAlgorithm.cpp index d9f3a65..ff25648 100644 --- a/src/SirtAlgorithm.cpp +++ b/src/SirtAlgorithm.cpp @@ -76,6 +76,7 @@ void CSirtAlgorithm::_clear() m_pDiffSinogram = NULL; m_pTmpVolume = NULL; + m_fLambda = 1.0f; m_iIterationCount = 0; } @@ -91,6 +92,7 @@ void CSirtAlgorithm::clear() ASTRA_DELETE(m_pDiffSinogram); ASTRA_DELETE(m_pTmpVolume); + m_fLambda = 1.0f; m_iIterationCount = 0; } @@ -128,6 +130,9 @@ bool CSirtAlgorithm::initialize(const Config& _cfg) return false; } + m_fLambda = _cfg.self.getOptionNumerical("Relaxation", 1.0f); + CC.markOptionParsed("Relaxation"); + // init data objects and data projectors _init(); @@ -152,6 +157,8 @@ bool CSirtAlgorithm::initialize(CProjector2D* _pProjector, m_pSinogram = _pSinogram; m_pReconstruction = _pReconstruction; + m_fLambda = 1.0f; + // init data objects and data projectors _init(); @@ -248,7 +255,7 @@ void CSirtAlgorithm::run(int _iNrIterations) x = 1.0f / x; else x = 0.0f; - pfT[i] = x; + pfT[i] = m_fLambda * x; } pfT = m_pTotalRayLength->getData(); for (int i = 0; i < m_pTotalRayLength->getSize(); ++i) { @@ -296,7 +303,7 @@ void CSirtAlgorithm::run(int _iNrIterations) m_pTmpVolume->setData(0.0f); pBackProjector->project(); - // divide by pixel weights + // multiply with relaxation factor divided by pixel weights (*m_pTmpVolume) *= (*m_pTotalPixelWeight); (*m_pReconstruction) += (*m_pTmpVolume); |