summaryrefslogtreecommitdiffstats
path: root/src/ForwardProjectionAlgorithm.cpp
blob: 732f38c0e4ea89eaefc66f840d69d4b6411604a4 (plain)
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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
/*
-----------------------------------------------------------------------
Copyright: 2010-2018, imec Vision Lab, University of Antwerp
           2014-2018, 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/>.

-----------------------------------------------------------------------
*/

#include "astra/ForwardProjectionAlgorithm.h"

#include "astra/AstraObjectManager.h"
#include "astra/DataProjectorPolicies.h"

using namespace std;

namespace astra {

#include "astra/Projector2DImpl.inl"

// type of the algorithm, needed to register with CAlgorithmFactory
std::string CForwardProjectionAlgorithm::type = "FP";

//----------------------------------------------------------------------------------------
// Constructor - Default
CForwardProjectionAlgorithm::CForwardProjectionAlgorithm() 
{
	_clear();
}

//----------------------------------------------------------------------------------------
// Constructor
CForwardProjectionAlgorithm::CForwardProjectionAlgorithm(CProjector2D* _pProjector, CFloat32VolumeData2D* _pVolume, CFloat32ProjectionData2D* _pSinogram)
{
	_clear();
	initialize(_pProjector, _pVolume, _pSinogram);
}

//----------------------------------------------------------------------------------------
// Destructor
CForwardProjectionAlgorithm::~CForwardProjectionAlgorithm() 
{
	delete m_pForwardProjector;
	clear();
}

//---------------------------------------------------------------------------------------
// Clear - Constructors
void CForwardProjectionAlgorithm::_clear()
{
	m_pProjector = NULL;
	m_pSinogram = NULL;
	m_pVolume = NULL;
	m_pForwardProjector = NULL;
	m_bUseSinogramMask = false;
	m_bUseVolumeMask = false;
	m_bIsInitialized = false;
}

//---------------------------------------------------------------------------------------
// Clear - Public
void CForwardProjectionAlgorithm::clear()
{
	m_pProjector = NULL;
	m_pSinogram = NULL;
	m_pVolume = NULL;
	m_bUseSinogramMask = false;
	m_bUseVolumeMask = false;
	m_bIsInitialized = false;
}

//----------------------------------------------------------------------------------------
// Check
bool CForwardProjectionAlgorithm::_check() 
{
	// check pointers
	ASTRA_CONFIG_CHECK(m_pProjector, "ForwardProjection", "Invalid Projector Object.");
	ASTRA_CONFIG_CHECK(m_pSinogram, "ForwardProjection", "Invalid Projection Data Object.");
	ASTRA_CONFIG_CHECK(m_pVolume, "ForwardProjection", "Invalid Volume Data Object.");

	// check initializations
	ASTRA_CONFIG_CHECK(m_pProjector->isInitialized(), "ForwardProjection", "Projector Object Not Initialized.");
	ASTRA_CONFIG_CHECK(m_pSinogram->isInitialized(), "ForwardProjection", "Projection Data Object Not Initialized.");
	ASTRA_CONFIG_CHECK(m_pVolume->isInitialized(), "ForwardProjection", "Volume Data Object Not Initialized.");

	// check compatibility between projector and data classes
	ASTRA_CONFIG_CHECK(m_pSinogram->getGeometry()->isEqual(m_pProjector->getProjectionGeometry()), "ForwardProjection", "Projection Data not compatible with the specified Projector.");
	ASTRA_CONFIG_CHECK(m_pVolume->getGeometry()->isEqual(m_pProjector->getVolumeGeometry()), "ForwardProjection", "Volume Data not compatible with the specified Projector.");

	ASTRA_CONFIG_CHECK(m_pForwardProjector, "ForwardProjection", "Invalid FP Policy");

	// success
	return true;
}

//---------------------------------------------------------------------------------------
// Initialize, use a Config object
bool CForwardProjectionAlgorithm::initialize(const Config& _cfg)
{
	ASTRA_ASSERT(_cfg.self);

	// if already initialized, clear first
	if (m_bIsInitialized) {
		clear();
	}

	// projector
	XMLNode node = _cfg.self.getSingleNode("ProjectorId");
	ASTRA_CONFIG_CHECK(node, "ForwardProjection", "No ProjectorId tag specified.");
	int id;
	id = StringUtil::stringToInt(node.getContent(), -1);
	m_pProjector = CProjector2DManager::getSingleton().get(id);

	// sinogram data
	node = _cfg.self.getSingleNode("ProjectionDataId");
	ASTRA_CONFIG_CHECK(node, "ForwardProjection", "No ProjectionDataId tag specified.");
	id = StringUtil::stringToInt(node.getContent(), -1);
	m_pSinogram = dynamic_cast<CFloat32ProjectionData2D*>(CData2DManager::getSingleton().get(id));

	// volume data
	node = _cfg.self.getSingleNode("VolumeDataId");
	ASTRA_CONFIG_CHECK(node, "ForwardProjection", "No VolumeDataId tag specified.");
	id = StringUtil::stringToInt(node.getContent(), -1);
	m_pVolume = dynamic_cast<CFloat32VolumeData2D*>(CData2DManager::getSingleton().get(id));
	
	// volume mask
	if (_cfg.self.hasOption("VolumeMaskId")) {
		m_bUseVolumeMask = true;
		id = StringUtil::stringToInt(_cfg.self.getOption("VolumeMaskId"), -1);
		m_pVolumeMask = dynamic_cast<CFloat32VolumeData2D*>(CData2DManager::getSingleton().get(id));
	}

	// sino mask
	if (_cfg.self.hasOption("SinogramMaskId")) {
		m_bUseSinogramMask = true;
		id = StringUtil::stringToInt(_cfg.self.getOption("SinogramMaskId"), -1);
		m_pSinogramMask = dynamic_cast<CFloat32ProjectionData2D*>(CData2DManager::getSingleton().get(id));
	}

	// ray or voxel-driven projector?
	//m_bUseVoxelProjector = _cfg.self->getOptionBool("VoxelDriven", false);

	// init data projector
	_init();

	// return success
	m_bIsInitialized = _check();
	return m_bIsInitialized;
}

//---------------------------------------------------------------------------------------
// Get Information - all
map<string,boost::any> CForwardProjectionAlgorithm::getInformation() 
{
	map<string, boost::any> result;
	result["ProjectorId"] = getInformation("ProjectorId");
	result["ProjectionDataId"] = getInformation("ProjectionDataId");
	result["VolumeDataId"] = getInformation("VolumeDataId");
	return mergeMap<string,boost::any>(CAlgorithm::getInformation(), result);
};

//---------------------------------------------------------------------------------------
// Get Information - specific
boost::any CForwardProjectionAlgorithm::getInformation(std::string _sIdentifier) 
{
	if (_sIdentifier == "ProjectorId") {
		int iIndex = CProjector2DManager::getSingleton().getIndex(m_pProjector);
		if (iIndex != 0) return iIndex;
		return std::string("not in manager");
	} else if (_sIdentifier == "ProjectionDataId") {
		int iIndex = CData2DManager::getSingleton().getIndex(m_pSinogram);
		if (iIndex != 0) return iIndex;
		return std::string("not in manager");
	} else if (_sIdentifier == "VolumeDataId") {
		int iIndex = CData2DManager::getSingleton().getIndex(m_pVolume);
		if (iIndex != 0) return iIndex;
		return std::string("not in manager");
	}
	return CAlgorithm::getInformation(_sIdentifier);
};

//----------------------------------------------------------------------------------------
// Initialize
bool CForwardProjectionAlgorithm::initialize(CProjector2D* _pProjector, 
											 CFloat32VolumeData2D* _pVolume,
											 CFloat32ProjectionData2D* _pSinogram)
{
	// store classes
	m_pProjector = _pProjector;
	m_pVolume = _pVolume;
	m_pSinogram = _pSinogram;

	// init data projector
	_init();

	// return success
	m_bIsInitialized = _check();
	return m_bIsInitialized;
}

//---------------------------------------------------------------------------------------
// Initialize Data Projectors - private
void CForwardProjectionAlgorithm::_init()
{
	// forward projection data projector
	m_pForwardProjector = dispatchDataProjector(
		m_pProjector, 
		SinogramMaskPolicy(m_pSinogramMask),			// sinogram mask
		ReconstructionMaskPolicy(m_pVolumeMask),		// reconstruction mask
		DefaultFPPolicy(m_pVolume, m_pSinogram),		// forward projection
		m_bUseSinogramMask, m_bUseVolumeMask, true		// options on/off
	); 
}

//----------------------------------------------------------------------------------------
// Set Fixed Reconstruction Mask
void CForwardProjectionAlgorithm::setVolumeMask(CFloat32VolumeData2D* _pMask, bool _bEnable)
{
	// TODO: check geometry matches volume
	m_bUseVolumeMask = _bEnable;
	m_pVolumeMask = _pMask;
	if (m_pVolumeMask == NULL) {
		m_bUseVolumeMask = false;
	}
}

//----------------------------------------------------------------------------------------
// Set Fixed Sinogram Mask
void CForwardProjectionAlgorithm::setSinogramMask(CFloat32ProjectionData2D* _pMask, bool _bEnable)
{
	// TODO: check geometry matches sinogram
	m_bUseSinogramMask = _bEnable;
	m_pSinogramMask = _pMask;
	if (m_pSinogramMask == NULL) {
		m_bUseSinogramMask = false;
	}
}

//----------------------------------------------------------------------------------------
// Iterate
void CForwardProjectionAlgorithm::run(int _iNrIterations)
{
	// check initialized
	ASTRA_ASSERT(m_bIsInitialized);

	m_pSinogram->setData(0.0f);

//	if (m_bUseVoxelProjector) {
//		m_pForwardProjector->projectAllVoxels();
//	} else {
		m_pForwardProjector->project();
//	}

}
//----------------------------------------------------------------------------------------

} // namespace astra