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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/>.
-----------------------------------------------------------------------
$Id$
*/
#ifndef _CUDA_CONE_DIMS_H
#define _CUDA_CONE_DIMS_H
namespace astra {
struct SConeProjection {
// the source
double fSrcX, fSrcY, fSrcZ;
// the origin ("bottom left") of the (flat-panel) detector
double fDetSX, fDetSY, fDetSZ;
// the U-edge of a detector pixel
double fDetUX, fDetUY, fDetUZ;
// the V-edge of a detector pixel
double fDetVX, fDetVY, fDetVZ;
};
struct SPar3DProjection {
// the ray direction
double fRayX, fRayY, fRayZ;
// the origin ("bottom left") of the (flat-panel) detector
double fDetSX, fDetSY, fDetSZ;
// the U-edge of a detector pixel
double fDetUX, fDetUY, fDetUZ;
// the V-edge of a detector pixel
double fDetVX, fDetVY, fDetVZ;
};
void computeBP_UV_Coeffs(const SPar3DProjection& proj, double &fUX, double &fUY, double &fUZ, double &fUC,
double &fVX, double &fVY, double &fVZ, double &fVC);
void computeBP_UV_Coeffs(const SConeProjection& proj, double &fUX, double &fUY, double &fUZ, double &fUC,
double &fVX, double &fVY, double &fVZ, double &fVC,
double &fDX, double &fDY, double &fDZ, double &fDC);
}
namespace astraCUDA3d {
using astra::SConeProjection;
using astra::SPar3DProjection;
struct SDimensions3D {
unsigned int iVolX;
unsigned int iVolY;
unsigned int iVolZ;
unsigned int iProjAngles;
unsigned int iProjU; // number of detectors in the U direction
unsigned int iProjV; // number of detectors in the V direction
unsigned int iRaysPerDetDim;
unsigned int iRaysPerVoxelDim;
};
}
#endif
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