1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
/*
-----------------------------------------------------------------------
Copyright: 2010-2021, imec Vision Lab, University of Antwerp
2014-2021, CWI, Amsterdam
Contact: astra@astra-toolbox.com
Website: http://www.astra-toolbox.com/
This file is part of the 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/>.
-----------------------------------------------------------------------
*/
#ifndef _INC_ASTRA_FILTEREDBACKPROJECTION
#define _INC_ASTRA_FILTEREDBACKPROJECTION
#include "ReconstructionAlgorithm2D.h"
#include "Globals.h"
#include "Projector2D.h"
#include "Float32ProjectionData2D.h"
#include "Float32VolumeData2D.h"
#include "Filters.h"
namespace astra {
/**
* \brief
* This class contains the implementation of the filtered back projection (FBP)
* reconstruction algorithm.
*
* \par XML Configuration
* \astra_xml_item{ProjectorId, integer, Identifier of a projector as it is stored in the ProjectorManager.}
* \astra_xml_item{VolumeDataId, integer, Identifier of the volume data object as it is stored in the DataManager.}
* \astra_xml_item{ReconstructionDataId, integer, Identifier of the resulting projection data object as it is stored in the DataManager.}
* \astra_xml_item_option{ProjectionIndex, integer, 0, Only reconstruct this specific projection angle. }
* \par MATLAB example
* \astra_code{
* cfg = astra_struct('FP');\n
* cfg.ProjectorId = proj_id;\n
* cfg.ReconstructionDataId = vol_id;\n
* cfg.ProjectionDataId = sino_id;\n
* alg_id = astra_mex_algorithm('create'\, cfg);\n
* astra_mex_algorithm('run'\, alg_id);\n
* astra_mex_algorithm('delete'\, alg_id);\n
* }
*
*/
class _AstraExport CFilteredBackProjectionAlgorithm : public CReconstructionAlgorithm2D {
protected:
/** Initial clearing. Only to be used by constructors.
*/
virtual void _clear();
/** Check the values of this object. If everything is ok, the object can be set to the initialized state.
* The following statements are then guaranteed to hold:
* - valid projector
* - valid data objects
* - projection order all within range
*/
virtual bool _check();
public:
// type of the algorithm, needed to register with CAlgorithmFactory
static std::string type;
/** Default constructor, containing no code.
*/
CFilteredBackProjectionAlgorithm();
/** Destructor.
*/
virtual ~CFilteredBackProjectionAlgorithm();
/** Initialize class.
*
* @param _pProjector Projector to use.
* @param _pSinogram ProjectionData2D object containing the sinogram data.
* @param _pReconstruction VolumeData2D object for storing the reconstructed volume.
* @return success
*/
bool initialize(CProjector2D* _pProjector,
CFloat32VolumeData2D* _pReconstruction,
CFloat32ProjectionData2D* _pSinogram);
/** Initialize the algorithm with a config object.
*
* @param _cfg Configuration Object
* @return initialization successful?
*/
virtual bool initialize(const Config& _cfg);
/** Clear this class.
*/
virtual void clear();
/** Get all information parameters
*
* @return map with all boost::any object
*/
virtual std::map<std::string,boost::any> getInformation();
/** Get a single piece of information represented as a boost::any
*
* @param _sIdentifier identifier string to specify which piece of information you want
* @return boost::any object
*/
virtual boost::any getInformation(std::string _sIdentifier);
/** Perform a number of iterations.
*
* @param _iNrIterations amount of iterations to perform.
*/
virtual void run(int _iNrIterations = 0);
/** Performs the filtering of the projection data.
*
* @param _pFilteredSinogram will contain filtered sinogram afterwards
*/
void performFiltering(CFloat32ProjectionData2D * _pFilteredSinogram);
/** Get a description of the class.
*
* @return description string
*/
virtual std::string description() const;
protected:
SFilterConfig m_filterConfig;
};
// inline functions
inline std::string CFilteredBackProjectionAlgorithm::description() const { return CFilteredBackProjectionAlgorithm::type; };
} // end namespace
#endif
|
