Acknowledgments |
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xi | |
Introduction |
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xiii | |
Chapter 1 Specific Requirements For The 3D Digitization Of Outstanding Sites |
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1 | (20) |
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1.1 The current offer for high-resolution 3D data |
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1 | (3) |
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1.2 Statement of requirements |
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4 | (4) |
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4 | (2) |
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1.2.2 Conversion into building specifications |
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6 | (1) |
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1.2.3 Technical survey specifications |
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7 | (1) |
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1.3 Existing surveying methods |
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8 | (4) |
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1.3.1 Existing acquisition methods |
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8 | (1) |
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9 | (3) |
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1.3.3 Survey control data |
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12 | (1) |
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1.4 From building specifications to realization |
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12 | (6) |
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1.4.1 Reconnaissance stage |
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12 | (3) |
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15 | (1) |
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16 | (2) |
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18 | (3) |
Chapter 2 3D Digitization Using Images |
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21 | (64) |
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21 | (2) |
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23 | (10) |
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2.2.1 Equipment through the years |
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23 | (2) |
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2.2.2 Modernization of equipment |
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25 | (1) |
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26 | (2) |
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2.2.4 How do you measure with a camera? |
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28 | (5) |
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33 | (15) |
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2.3.1 Characteristics of the images |
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33 | (3) |
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2.3.2 Traditional stereoscopic image survey |
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36 | (2) |
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2.3.3 Stereoscopic image surveying for the automatic production of 3D point clouds |
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38 | (5) |
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43 | (5) |
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2.3.5 Survey control data |
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48 | (1) |
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48 | (9) |
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48 | (4) |
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52 | (3) |
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2.4.3 Strategies for the orientation of all the images of a site |
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55 | (2) |
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2.4.4 Qualifying the orientation of images |
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57 | (1) |
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2.5 Production of 3D point clouds from images |
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57 | (12) |
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2.5.1 Definition and use of 3D point clouds |
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57 | (1) |
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2.5.2 Principle for the production of 3D point clouds by dense image matching |
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58 | (5) |
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63 | (3) |
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2.5.4 Qualification of data produced |
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66 | (2) |
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2.5.5 Advantages and limits |
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68 | (1) |
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2.5.6 Other approaches to automatic image-based 3D reconstruction |
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68 | (1) |
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2.6 3D drawing by stereo or multi-image plotting |
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69 | (5) |
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2.6.1 Definition and use of 3D drawing |
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69 | (1) |
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2.6.2 Principle of the production of a 3D drawing |
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70 | (2) |
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2.6.3 Qualification of 3D drawing |
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72 | (2) |
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2.7 The software offer in close-range photogrammetry |
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74 | (1) |
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74 | (2) |
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2.8.1 Production in near-real time |
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74 | (1) |
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75 | (1) |
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2.8.3 Automatic reconstruction of 3D vector models using images |
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75 | (1) |
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76 | (9) |
Chapter 3 3D Digitization By Laser Scanner |
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85 | (40) |
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85 | (2) |
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87 | (13) |
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3.2.1 How a terrestrial laser scanner works |
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87 | (1) |
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3.2.2 Various families of laser technology |
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88 | (3) |
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3.2.3 Characteristics of terrestrial laser scanners |
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91 | (4) |
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3.2.4 Errors affecting measurement and calibration |
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95 | (4) |
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3.2.5 The main manufacturers |
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99 | (1) |
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99 | (1) |
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3.3 Acquisition by lasergrammetry |
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100 | (10) |
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101 | (1) |
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3.3.2 Requirements for control points |
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102 | (4) |
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3.3.3 Practical realization |
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106 | (1) |
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3.3.4 Advantages and limits of this technology |
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107 | (1) |
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3.3.5 Linking of external photographs |
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108 | (2) |
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3.4 Registration of laser stations |
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110 | (8) |
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3.4.1 Principle of the different registration strategies |
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110 | (3) |
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3.4.2 Automation of all or part of the registration phase |
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113 | (2) |
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3.4.3 Qualification of the registration of laser stations |
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115 | (2) |
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3.4.4 Exporting registered laser point clouds |
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117 | (1) |
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3.5 Qualification of the point clouds obtained |
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118 | (2) |
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118 | (1) |
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3.5.2 Radiometric quality |
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119 | (1) |
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3.5.3 Other elements of quality |
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120 | (1) |
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120 | (5) |
Chapter 4 Complementarity Of Techniques |
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125 | (8) |
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125 | (1) |
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4.2 Comparison of techniques |
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125 | (2) |
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4.2.1 Data acquisition in the field |
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125 | (1) |
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126 | (1) |
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127 | (1) |
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4.3 Example of the survey of Amiens Cathedral |
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127 | (3) |
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4.3.1 Proposed surveying methodology: lasergrammetry for the framework, complemented by photogrammetry |
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128 | (1) |
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4.3.2 Georeferencing of data |
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129 | (1) |
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4.3.3 Completeness of the survey |
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130 | (1) |
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130 | (3) |
Chapter 5 Point Cloud Processing |
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133 | (50) |
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5.1 Visualization and organization of 3D point clouds |
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134 | (9) |
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5.1.1 Ways of visualizing point clouds |
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134 | (6) |
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5.1.2 Organization of point clouds |
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140 | (3) |
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5.2 Preprocessing of the point clouds |
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143 | (10) |
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5.2.1 Denoising and filtering |
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143 | (2) |
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145 | (2) |
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5.2.3 Subsampling, resampling and compression of point clouds |
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147 | (2) |
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149 | (4) |
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5.3 From the point cloud to the 3D geometric model |
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153 | (13) |
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153 | (1) |
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5.3.2 Modeling in a 3D point cloud |
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154 | (4) |
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158 | (3) |
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5.3.4 Automatic reconstruction |
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161 | (2) |
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5.3.5 Combining laser point cloud with images |
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163 | (1) |
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164 | (2) |
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5.3.7 Qualification of geometric models |
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166 | (1) |
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166 | (7) |
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166 | (3) |
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5.4.2 Production of orthoimages |
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169 | (3) |
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5.4.3 Other image products |
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172 | (1) |
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173 | (10) |
Chapter 6 Management And Use Of Surveys |
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183 | (12) |
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183 | (1) |
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6.2 Managing data conservation |
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184 | (5) |
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184 | (1) |
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6.2.2 Semantic enhancement of geometric data |
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185 | (1) |
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186 | (3) |
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6.2.4 Responsibility and support for data conservation |
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189 | (1) |
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189 | (4) |
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6.3.1 Expected functionalities |
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189 | (1) |
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190 | (1) |
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191 | (2) |
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193 | (2) |
Conclusion |
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195 | (2) |
Index |
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197 | |