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Morphodynamic Classification of Coastal Regions Using Deep Learning Through Digital Imagery Collection.
| 题名： | Morphodynamic Classification of Coastal Regions Using Deep Learning Through Digital Imagery Collection. |
| 作者： | Herrmann, D. W. |
| 关键词： | Unmanned aerial vehicles, Artificial neural networks, Digital data, Machine learning, Artificial intelligence, Deep learning, Artificial intelligence software, Change detection, Remote sensing, Coastal landscape, Coastal imagery, Aws(amazon web services), Cnn(convolutional neural network), Crsb(carmel river state beach), Dji(da jiang innovations), Gis(geographic information system), Gpu(graphics processing unit), Relu(rectified linear unit), Uass( unmanned aerial systems), Vgg19(visual geometry groups 19) |
| 摘要： | The DoD is investing in autonomy, AI, and machine learning. Deep learning, a sub-field of machine learning is increasing due to newer and cheaper hardware, new algorithms, and big data. Deep learning uses a neural network with multiple weighted layers designed to learn hierarchical feature representations. This research uses the technique of transfer learning, which takes the well-constructed architecture of a source model and retrains it to a target data setin this case, different coastal landscapes. Eight different classes were trained with oblique ( 45) images. An average accuracy of 95% correct identification was achieved through validation testing. Carmel River State Beach is a known morphdynamic site that changes seasonally. Five different stitched together <10 off NADIR mosaics of this site were selected to test the models ability to detect and correctly label areas of change over time. The mosaics were broken into four quadrants of equal area to increase homogeneity of the features. The two landward quadrants showed successful label and change detection; the seaward quadrants showed poor results attributed to smearing and gradient distortion from the stitching process. Successful transfer learning was accomplished with high accuracy; angle differences and stitching caused mislabeling. Larger datasets with single images from multiple angles may reduce labeling error. Multi-label and multispectral approach will enhance and broaden the application of this process. |
| 报告类型： | 科技报告 |
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