CUDA Zeng forward and back projectors in RTK #977
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,9 +1,9 @@ | ||
| section "Projectors" | ||
| option "fp" f "Forward projection method" values="Joseph","CudaRayCast","JosephAttenuated","Zeng","CudaZeng" enum no default="Joseph" | ||
| option "bp" b "Back projection method" values="VoxelBasedBackProjection","Joseph","CudaVoxelBased","CudaRayCast","JosephAttenuated", "Zeng", "CudaZeng" enum no default="VoxelBasedBackProjection" | ||
| option "step" - "Step size along ray (for CudaRayCast only, default to the minimum voxel spacing of the input volume if set to 0)" double no default="0" | ||
| option "attenuationmap" - "Attenuation map relative to the volume to perform the attenuation correction (JosephAttenuated, Zeng and CudaZeng)" string no | ||
| option "sigmazero" - "PSF value at a distance of 0 meter of the detector (Zeng and CudaZeng only)" double no | ||
| option "alphapsf" - "Slope of the PSF against the detector distance (Zeng and CudaZeng only)" double no | ||
| option "inferiorclipimage" - "Inferior clip of the ray for each pixel of the projections (Joseph only)" string no | ||
| option "superiorclipimage" - "Superior clip of the ray for each pixel of the projections (Joseph only)" string no |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,81 @@ | ||
| /*========================================================================= | ||
| * | ||
| * Copyright RTK Consortium | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * https://www.apache.org/licenses/LICENSE-2.0.txt | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| *=========================================================================*/ | ||
| #ifndef rtkCudaZengBackProjectionImageFilter_h | ||
| #define rtkCudaZengBackProjectionImageFilter_h | ||
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| #include "rtkConfiguration.h" | ||
| #ifdef RTK_USE_CUDA | ||
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| # include "rtkBackProjectionImageFilter.h" | ||
| # include "RTKExport.h" | ||
| # include <itkCudaImage.h> | ||
| # include <itkCudaInPlaceImageFilter.h> | ||
| # include <itkImageBase.h> | ||
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| namespace rtk | ||
| { | ||
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| /** \class CudaZengBackProjectionImageFilter | ||
| * \brief CUDA implementation of the rotation-based Zeng backprojector. | ||
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Collaborator
There was a problem hiding this comment. Can you add [Zeng et al, IEEE TMI, [Zeng et al, 1999, IEEE TMI, 10.1109/42.796285] |
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| * | ||
| * The implementation reproduces the slice recursion of | ||
| * ZengBackProjectionImageFilter, including the depth-dependent Gaussian PSF | ||
| * and the optional attenuation map (input 2). | ||
| * | ||
| * \ingroup RTK Projector CudaImageToImageFilter | ||
| */ | ||
| class RTK_EXPORT CudaZengBackProjectionImageFilter | ||
| : public itk::CudaInPlaceImageFilter<itk::CudaImage<float, 3>, | ||
| itk::CudaImage<float, 3>, | ||
| BackProjectionImageFilter<itk::CudaImage<float, 3>, itk::CudaImage<float, 3>>> | ||
|
Collaborator
There was a problem hiding this comment. If I'm not mistaking, a large simplification would be to inherit from ZengBackProjectionImageFilter. Then all common members don't need to be declared. |
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| { | ||
| public: | ||
| ITK_DISALLOW_COPY_AND_MOVE(CudaZengBackProjectionImageFilter); | ||
| using ImageType = itk::CudaImage<float, 3>; | ||
| /** Metadata-only image used to build the rotated-grid transforms. Using | ||
| * ImageBase avoids the CUDA image factory replacing itk::Image::New(). */ | ||
| using CPUImageType = itk::ImageBase<3>; | ||
| using ProjectorType = BackProjectionImageFilter<ImageType, ImageType>; | ||
| using Self = CudaZengBackProjectionImageFilter; | ||
| using Superclass = itk::CudaInPlaceImageFilter<ImageType, ImageType, ProjectorType>; | ||
| using Pointer = itk::SmartPointer<Self>; | ||
| using ConstPointer = itk::SmartPointer<const Self>; | ||
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| itkNewMacro(Self); | ||
| itkOverrideGetNameOfClassMacro(CudaZengBackProjectionImageFilter); | ||
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| itkGetConstMacro(SigmaZero, double); | ||
| itkSetMacro(SigmaZero, double); | ||
| itkGetConstMacro(Alpha, double); | ||
| itkSetMacro(Alpha, double); | ||
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| protected: | ||
| CudaZengBackProjectionImageFilter(); | ||
| ~CudaZengBackProjectionImageFilter() override; | ||
| void | ||
| GPUGenerateData() override; | ||
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| private: | ||
| double m_SigmaZero{ 1.5417233052142099 }; | ||
| double m_Alpha{ 0.016241189545787734 }; | ||
| void * m_CudaWorkspace{ nullptr }; | ||
| }; | ||
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| } // namespace rtk | ||
| #endif // RTK_USE_CUDA | ||
| #endif // rtkCudaZengBackProjectionImageFilter_h | ||
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Can be mutualized with Zeng I believe