Remote Sensing · 2020 · 32 citations · 18 references
ComputingComputer ScienceGeoinformaticsArtificial IntelligenceMachine LearningRemote SensingCryospheric Remote SensingDeep LearningImage ClassificationNeural NetworksRemote Sensing Of IceSea Ice Remote SensingClassification AccuracyClassification Accuracy AnalysisDeep Learning-based ClassificationMachine Learning For Sea Ice ClassificationSea Ice Concentration ClassificationSea Ice Concentration MappingSea Ice Type ClassificationSynthetic Aperture Radar Sea Ice Concentration
Accurate maps of ice concentration and ice type are needed to address increased interest in commercial marine transportation through the Arctic. RADARSAT-2 SAR imagery is the primary source of data used by expert ice analysts at the Canadian Ice Service (CIS) to produce sea ice maps over the Canadian territory. This study serves as a proof of concept that neural networks can be used to accurately predict ice type from SAR data. Datasets of SAR images served as inputs, and CIS ice charts served as labelled outputs to train a neural network to classify sea ice type. Our results show that DenseNet achieves the highest overall classification accuracy of 94.0% including water and the highest ice classification accuracy of 91.8% on a three class dataset using a fusion of HH and HV SAR polarizations for the input samples. The 91.8% ice classification accuracy validates the premise that a neural network can be used to effectively categorize different ice types based on SAR data.
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Densely Connected Convolutional Networks
Gao Huang, Zhuang Liu, Laurens van der Maaten et al. · 2017 · 44.7K citations
Training deep neural networks on imbalanced data sets
Shoujin Wang, Wei Liu, Jia Wu et al. · 2016 · 462 citations