Aerial Triangulation | Part 3: Using Direct Georeferencing for Assisted AT | GeoErnest

Aerial Triangulation | Part 3: Using Direct Georeferencing for Assisted AT | GeoErnest

Does this mean you use AT for all mapping situations? No it depends on your application, accuracy requirements, and whether you followed procedures. BUT every mapping company should have professional AT software.

You can use DG (Direct Georeferencing) for 10 cm accuracy orthophotos. This is the limit if you’ve followed procedures. If you need better than 10 cm, consider using assisted AT.

If you’re doing 1-foot or 30 cm contour mapping where you need the highest horizontal and vertical accuracy, use AT.

If you’re GNSS/ INS data is worse than your project spec, use AT.

If you’re not sure if you’ve followed the right procedures,use AT.

For me, this means Directly georeferenced assisted AT gets the highest accuracy in the shortest amount of time for aerial camera mapping. The best of both worlds.

This is GeoErnest.

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This is GeoErnest. Visit geoernest.com

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