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Test sites to test the model's quality

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Test sites

Title: Test sites to test the model's quality

Description: Plots to compare segmentation results of the DeepLabV3 Global Model trained on all 33,311 training samples, the DeepLabV3 Shanghai model retrained on imagery from the surrounding area and the PWIShanghai spectral index, fine-tuned specifically for the test site. The mask has been overlaid on the original sample at 83% opacity.

The Shanghai figure (figure 16 in the paper) also points out how the CNN was capable of outperforming even a fine-tuned spectral algorithm, as it is capable of interpreting dynamic contextual features.

Copyright: Contains modified Copernicus Sentinel data (2021)/processed by SpaceTimeLab/University College London