Geography · Geoinformatics and Georeferencing
Which among the following options CANNOT be directly used as a source/reference to georeference an unprojected raster map?
- 1Known map coordinates from an existing georeferenced topographical map
- 2Coordinates from a differential GPS unit
- 3An unprojected and non-georeferenced aerial photograph✓
- 4Ground Control Points (GCPs) from a hand-held GNSS unit
Correct answer
An unprojected and non-georeferenced aerial photograph
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