Change Detection and Image Time Series Analysis 2 Supervised Methods

Preface ix
Abdourrahmane M. ATTO, Francesca BOVOLO and Lorenzo BRUZZONE

List of Notations xiii

Chapter 1. Hierarchical Markov Random Fields for High Resolution Land Cover Classification of Multisensor and Multiresolution Image Time Series 1
Ihsen HEDHLI, Gabriele MOSER, Sebastiano B. SERPICO and Josiane ZERUBIA

1.1. Introduction 1

1.1.1. The role of multisensor data in time series classification 1

1.1.2. Multisensor and multiresolution classification 2

1.1.3. Previouswork 5

1.2. Methodology 9

1.2.1. Overview of the proposed approaches 9

1.2.2. Hierarchical model associated with the first proposed method 10

1.2.3. Hierarchical model associated with the second proposed method 13

1.2.4. Multisensor hierarchical MPM inference 14

1.2.5. Probability density estimation through finite mixtures 17

1.3. Examples of experimental results 19

1.3.1. Results of thefirstmethod 19

1.3.2. Results of the secondmethod 22

1.4. Conclusion 26

1.5. Acknowledgments 26

1.6. References 27

Chapter 2. Pixel-based Classification Techniques for Satellite Image Time Series 33
Charlotte PELLETIER and Silvia VALERO

2.1. Introduction 33

2.2. Basic concepts in supervised remote sensing classification 35

2.2.1. Preparing data before it is fed into classification algorithms 35

2.2.2. Key considerations when training supervised classifiers 39

2.2.3. Performance evaluation of supervised classifiers 41

2.3. Traditional classification algorithms 45

2.3.1. Support vector machines 45

2.3.2. Random forests 51

2.3.3. k-nearest neighbor 56

2.4. Classification strategies based on temporal feature representations 59

2.4.1. Phenology-based classification approaches 60

2.4.2. Dictionary-based classification approaches 61

2.4.3. Shapelet-based classification approaches 62

2.5. Deep learningapproaches 63

2.5.1. Introduction to deep learning 64

2.5.2. Convolutionalneuralnetworks 68

2.5.3. Recurrentneuralnetworks 71

2.6. References 75

Chapter 3. Semantic Analysis of Satellite Image Time Series 85
Corneliu Octavian DUMITRU and Mihai DATCU

3.1. Introduction 85

3.1.1.TypicalSITSexamples 89

3.1.2. Irregular acquisitions 90

3.1.3.The chapter structure 96

3.2.Why are semantics neededin SITS? 96

3.3.Similaritymetrics 97

3.4. Feature methods 98

3.5. Classification methods 98

3.5.1. Active learning 99

3.5.2. Relevance feedback 100

3.5.3. Compression-based pattern recognition 100

3.5.4. LatentDirichlet allocation 101

3.6. Conclusion 102

3.7. Acknowledgments 105

3.8. References 105

Chapter 4. Optical Satellite Image Time Series Analysis for Environment Applications: From Classical Methods to Deep Learning and Beyond 109
Matthieu MOLINIER, Jukka MIETTINEN, Dino IENCO, Shi QIU and Zhe ZHU

4.1. Introduction 109

4.2. Annual time series 111

4.2.1. Overview of annual time series methods 111

4.2.2. Examples of annual times series analysis applications for environmentalmonitoring 112

4.2.3. Towardsdense time series analysis 116

4.3. Dense time series analysis using all available data 117

4.3.1. Making dense time series consistent 118

4.3.2. Change detection methods 121

4.3.3. Summaryand futuredevelopments 125

4.4. Deep learning-based time series analysis approaches 126

4.4.1. Recurrent Neural Network (RNN) for Satellite Image TimeSeries 129

4.4.2. Convolutional Neural Networks (CNN) for Satellite Image TimeSeries 131

4.4.3. Hybrid models: Convolutional Recurrent Neural Network (ConvRNN) models for Satellite Image Time Series 134

4.4.4. Synthesis and future developments 136

4.5. Beyond satellite image time series and deep learning: convergence between time series and video approaches 136

4.5.1. Increased image acquisition frequency: from time series to spacebornetime-lapse and videos 137

4.5.2. Deep learning and computer vision as technology enablers 138

4.5.3. Future steps 139

4.6. References 140

Chapter 5. A Review on Multi-temporal Earthquake Damage Assessment Using Satellite Images 155
Gül¸sen TA¸SKIN, Esra ERTEN and Enes O˘guzhan ALATA¸S

5.1. Introduction 155

5.1.1. Research methodology and statistics 159

5.2. Satellite-based earthquake damage assessment 165

5.3. Pre-processing of satellite images before damage assessment 167

5.4. Multi-source image analysis 168

5.5. Contextual feature mining for damage assessment 169

5.5.1. Textural features 170

5.5.2. Filter-based methods 173

5.6. Multi-temporal image analysis for damage assessment 175

5.6.1. Use of machine learning in damage assessment problem 176

5.6.2. Rapid earthquake damage assessment 180

5.7. Understanding damage following an earthquake using satellite-based SAR 181

5.7.1. SAR fundamental parameters and acquisition vector 185

5.7.2. Coherent methods for damage assessment 188

5.7.3. Incoherent methods for damage assessment 192

5.7.4. Post-earthquake-only SAR data-based damage assessment 195

5.7.5. Combination of coherent and incoherent methods for damage assessment 196

5.7.6. Summary 198

5.8. Use of auxiliary data sources 200

5.9. Damage grades 200

5.10. Conclusionand discussion 203

5.11. References 205

Chapter 6. Multiclass Multilabel Change of State Transfer Learning from Image Time Series 223
Abdourrahmane M. ATTO, Héla HADHRI, Flavien VERNIER and Emmanuel TROUVÉ

6.1. Introduction 223

6.2. Coarse- to fine-grained change of state dataset 225

6.3. Deep transfer learning models for change of state classification 232

6.3.1. Deep learningmodel library 232

6.3.2. Graphstructures for theCNNlibrary 234

6.3.3. Dimensionalities of the learnables for the CNN library 236

6.4. Change of state analysis 237

6.4.1. Transfer learning adaptations for the change of state classification issues 238

6.4.2. Experimental results 239

6.5. Conclusion 243

6.6. Acknowledgments 244

6.7. References 244

List of Authors 247

Index 249

Summary of Volume 1 253

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