diff options
Diffstat (limited to 'cuda/3d')
| -rw-r--r-- | cuda/3d/astra3d.cu | 150 | ||||
| -rw-r--r-- | cuda/3d/astra3d.h | 16 |
2 files changed, 166 insertions, 0 deletions
diff --git a/cuda/3d/astra3d.cu b/cuda/3d/astra3d.cu index 0b9c70b..f672d6c 100644 --- a/cuda/3d/astra3d.cu +++ b/cuda/3d/astra3d.cu @@ -40,6 +40,12 @@ $Id$ #include "arith3d.h" #include "astra3d.h" +#include "astra/ParallelProjectionGeometry3D.h" +#include "astra/ParallelVecProjectionGeometry3D.h" +#include "astra/ConeProjectionGeometry3D.h" +#include "astra/ConeVecProjectionGeometry3D.h" +#include "astra/VolumeGeometry3D.h" + #include <iostream> using namespace astraCUDA3d; @@ -137,6 +143,150 @@ static SPar3DProjection* genPar3DProjections(unsigned int iProjAngles, + +// adjust pProjs to normalize volume geometry +template<typename ProjectionT> +static bool convertAstraGeometry_internal(const CVolumeGeometry3D* pVolGeom, + unsigned int iProjectionAngleCount, + ProjectionT*& pProjs, + float& fOutputScale) +{ + assert(pVolGeom); + assert(pProjs); + + // TODO: Relative instead of absolute + const float EPS = 0.00001f; + if (abs(pVolGeom->getPixelLengthX() - pVolGeom->getPixelLengthY()) > EPS) + return false; + if (abs(pVolGeom->getPixelLengthX() - pVolGeom->getPixelLengthZ()) > EPS) + return false; + + + // Translate + float dx = -(pVolGeom->getWindowMinX() + pVolGeom->getWindowMaxX()) / 2; + float dy = -(pVolGeom->getWindowMinY() + pVolGeom->getWindowMaxY()) / 2; + float dz = -(pVolGeom->getWindowMinZ() + pVolGeom->getWindowMaxZ()) / 2; + + float factor = 1.0f / pVolGeom->getPixelLengthX(); + + for (int i = 0; i < iProjectionAngleCount; ++i) { + // CHECKME: Order of scaling and translation + pProjs[i].translate(dx, dy, dz); + pProjs[i].scale(factor); + } + + // CHECKME: Check factor + fOutputScale *= pVolGeom->getPixelLengthX(); + + return true; +} + + + +bool convertAstraGeometry(const CVolumeGeometry3D* pVolGeom, + const CParallelProjectionGeometry3D* pProjGeom, + SPar3DProjection*& pProjs, float& fOutputScale) +{ + assert(pVolGeom); + assert(pProjGeom); + assert(pProjGeom->getProjectionAngles()); + + int nth = pProjGeom->getProjectionCount(); + + pProjs = genPar3DProjections(nth, + pProjGeom->getDetectorColCount(), + pProjGeom->getDetectorRowCount(), + pProjGeom->getDetectorSpacingX(), + pProjGeom->getDetectorSpacingY(), + pProjGeom->getProjectionAngles()); + + bool ok; + + fOutputScale = 1.0f; + + ok = convertAstraGeometry_internal(pVolGeom, nth, pProjs, fOutputScale); + + return ok; +} + +bool convertAstraGeometry(const CVolumeGeometry3D* pVolGeom, + const CParallelVecProjectionGeometry3D* pProjGeom, + SPar3DProjection*& pProjs, float& fOutputScale) +{ + assert(pVolGeom); + assert(pProjGeom); + assert(pProjGeom->getProjectionVectors()); + + int nth = pProjGeom->getProjectionCount(); + + pProjs = new SPar3DProjection[nth]; + for (int i = 0; i < nth; ++i) + pProjs[i] = pProjGeom->getProjectionVectors()[i]; + + bool ok; + + fOutputScale = 1.0f; + + ok = convertAstraGeometry_internal(pVolGeom, nth, pProjs, fOutputScale); + + return ok; +} + +bool convertAstraGeometry(const CVolumeGeometry3D* pVolGeom, + const CConeProjectionGeometry3D* pProjGeom, + SConeProjection*& pProjs, float& fOutputScale) +{ + assert(pVolGeom); + assert(pProjGeom); + assert(pProjGeom->getProjectionAngles()); + + int nth = pProjGeom->getProjectionCount(); + + pProjs = genConeProjections(nth, + pProjGeom->getDetectorColCount(), + pProjGeom->getDetectorRowCount(), + pProjGeom->getOriginSourceDistance(), + pProjGeom->getOriginDetectorDistance(), + pProjGeom->getDetectorSpacingX(), + pProjGeom->getDetectorSpacingY(), + pProjGeom->getProjectionAngles()); + + bool ok; + + fOutputScale = 1.0f; + + ok = convertAstraGeometry_internal(pVolGeom, nth, pProjs, fOutputScale); + + return ok; +} + +bool convertAstraGeometry(const CVolumeGeometry3D* pVolGeom, + const CConeVecProjectionGeometry3D* pProjGeom, + SConeProjection*& pProjs, float& fOutputScale) +{ + assert(pVolGeom); + assert(pProjGeom); + assert(pProjGeom->getProjectionAngles()); + + int nth = pProjGeom->getProjectionCount(); + + pProjs = new SConeProjection[nth]; + for (int i = 0; i < nth; ++i) + pProjs[i] = pProjGeom->getProjectionVectors()[i]; + + bool ok; + + fOutputScale = 1.0f; + + ok = convertAstraGeometry_internal(pVolGeom, nth, pProjs, fOutputScale); + + return ok; +} + + + + + class AstraSIRT3d_internal { public: SDimensions3D dims; diff --git a/cuda/3d/astra3d.h b/cuda/3d/astra3d.h index f91fe26..47e252e 100644 --- a/cuda/3d/astra3d.h +++ b/cuda/3d/astra3d.h @@ -466,6 +466,22 @@ _AstraExport bool astraCudaFDK(float* pfVolume, const float* pfProjections, bool bShortScan, int iGPUIndex, int iVoxelSuperSampling); +_AstraExport bool convertAstraGeometry(const CVolumeGeometry3D* pVolGeom, + const CParallelProjectionGeometry3D* pProjGeom, + SPar3DProjection*& pProjs, float& fOutputScale); + +_AstraExport bool convertAstraGeometry(const CVolumeGeometry3D* pVolGeom, + const CParallelVecProjectionGeometry3D* pProjGeom, + SPar3DProjection*& pProjs, float& fOutputScale); + +_AstraExport bool convertAstraGeometry(const CVolumeGeometry3D* pVolGeom, + const CConeProjectionGeometry3D* pProjGeom, + SConeProjection*& pProjs, float& fOutputScale); + +_AstraExport bool convertAstraGeometry(const CVolumeGeometry3D* pVolGeom, + const CConeVecProjectionGeometry3D* pProjGeom, + SConeProjection*& pProjs, float& fOutputScale); + } |