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
|
/*
//
// Copyright 1997-2010 Torsten Rohlfing
//
// Copyright 2004-2010, 2013 SRI International
//
// This file is part of the Computational Morphometry Toolkit.
//
// http://www.nitrc.org/projects/cmtk/
//
// The Computational Morphometry Toolkit 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 Computational Morphometry Toolkit 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 Computational Morphometry Toolkit. If not, see
// <http://www.gnu.org/licenses/>.
//
// $Revision: 5436 $
//
// $LastChangedDate: 2018-12-10 19:01:20 -0800 (Mon, 10 Dec 2018) $
//
// $LastChangedBy: torstenrohlfing $
//
*/
#ifndef __cmtkMultiChannelHistogramRegistrationFunctional_h_included_
#define __cmtkMultiChannelHistogramRegistrationFunctional_h_included_
#include <cmtkconfig.h>
#include <Registration/cmtkMultiChannelRegistrationFunctional.h>
#include <Base/cmtkHashMapSTL.h>
#include <Base/cmtkUniformVolume.h>
#include <Base/cmtkUniformVolumeInterpolator.h>
#include <Base/cmtkLinearInterpolator.h>
#include <System/cmtkSmartPtr.h>
#include <vector>
namespace
cmtk
{
/** \addtogroup Registration */
//@{
/** Base class for multi-channel registration functionals using the Histogram metric. */
template<class TDataType = float,
class TInterpolator = cmtk::UniformVolumeInterpolator<cmtk::Interpolators::Linear>,
class THashKeyType = unsigned int,
char NBitsPerChannel=6>
class MultiChannelHistogramRegistrationFunctional :
/** Inherit functional interface. */
public MultiChannelRegistrationFunctional<TInterpolator>
{
public:
/** Number of bits per channel in the histogram bin index type. */
static const char m_HistogramBitsPerChannel = NBitsPerChannel;
/** This class. */
typedef MultiChannelHistogramRegistrationFunctional<TDataType,THashKeyType> Self;
/** Smart pointer. */
typedef SmartPointer<Self> SmartPtr;
/** Superclass. */
typedef MultiChannelRegistrationFunctional<TInterpolator> Superclass;
/** Real value type for data representation. */
typedef TDataType DataType;
/** Hash key type. */
typedef THashKeyType HashKeyType;
/// Default constructor.
MultiChannelHistogramRegistrationFunctional() : m_HashKeyShiftRef( 0 ) {}
/** Add reference channel. */
virtual void AddReferenceChannel( UniformVolume::SmartPtr& channel );
/** Add floating channel. */
virtual void AddFloatingChannel( UniformVolume::SmartPtr& channel );
/** Reset channels, clear all images. */
virtual void ClearAllChannels();
protected:
/** Local class for data needed to compute similarity metric. */
class MetricData
{
private:
/** Typedef of parent class. */
typedef MultiChannelHistogramRegistrationFunctional<TDataType,TInterpolator,THashKeyType,NBitsPerChannel> Parent;
/** Parent object. */
Parent* m_Parent;
public:
/** This class type. */
typedef MetricData Self;
/// Default constructor.
MetricData() : m_Parent( NULL ), m_TotalNumberOfSamples( 0 ) {}
/** Initialize metric object and local storage. */
void Init( Parent *const parent );
/** Hash table type. */
typedef HashMapSTL<HashKeyType, int> HashTableType;
/** Joint haash table for reference and floating channels. */
HashTableType m_JointHash;
/** Hash table for reference channels. */
HashTableType m_ReferenceHash;
/** Hash table for floating channels. */
HashTableType m_FloatingHash;
/** Total number of samples (pixels) under current transformation. */
size_t m_TotalNumberOfSamples;
/** Assignment operator. */
Self& operator=( const Self& source );
/** In-place addition operator. */
Self& operator+=( const Self& other );
/** In-place subtraction operator. */
Self& operator-=( const Self& other );
/** In-place single sample addition operator. */
void operator+=( const std::vector<Types::DataItem>& values );
/** In-place single sample subtraction operator. */
void operator-=( const std::vector<Types::DataItem>& values );
};
/// Global data structure for metric computation.
MetricData m_MetricData;
/** Continue metric computation. */
virtual void ContinueMetric( MetricData& metricData, const size_t rindex, const Vector3D& fvector );
/** Get metric value. */
virtual Functional::ReturnType GetMetric( const MetricData& metricData ) const;
private:
/** Scale factors for reference values to histogram "bins". */
std::vector<TDataType> m_HashKeyScaleRef;
/** Scale factors for floating values to histogram "bins". */
std::vector<TDataType> m_HashKeyScaleFlt;
/** Offsets for reference values to histogram "bins". */
std::vector<TDataType> m_HashKeyOffsRef;
/** Offsets for reference values to histogram "bins". */
std::vector<TDataType> m_HashKeyOffsFlt;
/** Bit shift count to combine floating and reference hash keys into joint keys. */
size_t m_HashKeyShiftRef;
};
//@}
} // namespace cmtk
#include "cmtkMultiChannelHistogramRegistrationFunctional.txx"
#include "cmtkMultiChannelHistogramRegistrationFunctionalMetricData.txx"
#endif // #ifndef __cmtkMultiChannelHistogramRegistrationFunctional_h_included_
|
