Digitising Rivers the AI Way in Western Province Papua New Guinea
summary
Using the QGIS AI vectorizer from Banting Labs to extract rivers and contours, raster map scans turn into clean line and polygon vectors with a single hover click; a river segment traces in under 30 seconds versus 2–5 minutes manually, and an entire Kunga map (1:50k/1:250k sheets) gets digitized in about two weeks. Automatic fills handle lake polygons, the shift-key correction fixes stray traces, and the project targets full Western Province coverage across five geological maps by 2027.
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