From 248639b4fee8659a4106dcc44d721149a1885018 Mon Sep 17 00:00:00 2001 From: Willem Jan Palenstijn Date: Thu, 5 Mar 2015 17:01:47 +0100 Subject: Add 3d geometry normalization functions --- cuda/3d/astra3d.cu | 150 +++++++++++++++++++++++++++++++++++++++++ cuda/3d/astra3d.h | 16 +++++ include/astra/GeometryUtil3D.h | 53 +++++++++++++++ 3 files changed, 219 insertions(+) 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 using namespace astraCUDA3d; @@ -137,6 +143,150 @@ static SPar3DProjection* genPar3DProjections(unsigned int iProjAngles, + +// adjust pProjs to normalize volume geometry +template +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); + } diff --git a/include/astra/GeometryUtil3D.h b/include/astra/GeometryUtil3D.h index 698372e..6ceac63 100644 --- a/include/astra/GeometryUtil3D.h +++ b/include/astra/GeometryUtil3D.h @@ -43,6 +43,33 @@ struct SConeProjection { // the V-edge of a detector pixel double fDetVX, fDetVY, fDetVZ; + + + + + void translate(double dx, double dy, double dz) { + fSrcX += dx; + fSrcY += dy; + fSrcZ += dz; + fDetSX += dx; + fDetSY += dy; + fDetSZ += dz; + + } + void scale(double factor) { + fSrcX *= factor; + fSrcY *= factor; + fSrcZ *= factor; + fDetSX *= factor; + fDetSY *= factor; + fDetSZ *= factor; + fDetUX *= factor; + fDetUY *= factor; + fDetUZ *= factor; + fDetVX *= factor; + fDetVY *= factor; + fDetVZ *= factor; + } }; struct SPar3DProjection { @@ -57,6 +84,29 @@ struct SPar3DProjection { // the V-edge of a detector pixel double fDetVX, fDetVY, fDetVZ; + + + + + void translate(double dx, double dy, double dz) { + fDetSX += dx; + fDetSY += dy; + fDetSZ += dz; + } + void scale(double factor) { + fRayX *= factor; + fRayY *= factor; + fRayZ *= factor; + fDetSX *= factor; + fDetSY *= factor; + fDetSZ *= factor; + fDetUX *= factor; + fDetUY *= factor; + fDetUZ *= factor; + fDetVX *= factor; + fDetVY *= factor; + fDetVZ *= factor; + } }; void computeBP_UV_Coeffs(const SPar3DProjection& proj, @@ -68,6 +118,9 @@ void computeBP_UV_Coeffs(const SConeProjection& proj, double &fVX, double &fVY, double &fVZ, double &fVC, double &fDX, double &fDY, double &fDZ, double &fDC); + + + } #endif -- cgit v1.2.3