Update README.md

README.md

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 <!-- This section is for the model use without fine-tuning or plugging into a larger ecosystem/app. -->
 
-Models are trained to process 320x320 pixel patches of Sentinel-2 RGB images with 10m resolution and detect marine vessels. The models will detect targets from outside of the water areas, but those detections can be eliminated by using external datasets. 
+Models are trained to process 320x320 pixel patches of Sentinel-2 RGB images with 10m resolution and detect marine vessels which are upsampled into 640x640 pixels during training and inference. The models will detect targets from outside of the water areas, but those detections can be eliminated by using external datasets. 
 
 ### Out-of-Scope Use