Geospatial Deep Learning
This course is an applied study of deep learning methods for extracting information from geospatial data, such as aerial imagery, multispectral imagery, digital terrain data, and other digital cartographic representations. We have provided background and conceptual information in the form of lecture modules, video examples using ArcGIS Pro, and coding examples using Python and PyTorch or R and geodl. We primarily focus on convolutional neural networks (CNNs) and semantic segmentation methods; however, we also discuss transformer and mamba architectures.
It is assumed that you have prior knowledge of coding in the Python language. The R language is also used but to a lesser extent. If you do not have experience coding, please take a look at our Methods in Open Science course, which explore coding in Python and/or R.
After completing this course you will be able to:
- explain how ANNs work including weights, bias, activation, and optimization.
- describe and explain different loss and assessment metrics and determine appropriate use cases.
- use the tensor data model to represent data as input for deep learning.
- explain how CNNs work including convolutional operations/layers, kernel size, stride, padding, max pooling, activation functions, and batch normalization.
- use PyTorch, Python, and R to prepare data, produce and assess scene classification models, and infer to new data.
- explain common semantic segmentation architectures and how these methods allow for pixel-level classification and how they are different from traditional CNNs.
- use PyTorch, Python, and R (or ArcGIS Pro) to prepare data, produce and assess semantic segmentation models, and infer to new data.
- explain how object and instance segmentation are different from traditional CNNs and semantic segmentation and how they can be used to generate bounding boxes and feature masks for each instance of a class.
- use PyTorch to build deep learning architectures, read and load data, train models, assess models, and infer back to new data.
If you have any questions or suggestions, feel free to contact us. We hope to continue to update and improve this course.
This course was produced by West Virginia View (www.wvview.org) with support from AmericaView (americaview.org). This material is based upon work supported by the U.S. Geological Survey under Grant/Cooperative Agreement No. G18AP00077 and G23AP00683. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the opinions or policies of the U.S. Geological Survey. Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey. This course and associated materials were also supported by the National Science Foundation (NSF) (Federal Award ID No. 2046059: "CAREER: Mapping Anthropocene Geomorphology with Deep Learning, Big Data Spatial Analytics, and LiDAR"). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
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