Historical orthophoto of the Dunkirk city in 1949
Historical orthophoto of Dunkirk built for the observation of the territory over time. Results obtained from 171 scanned silver images available with the IGN webportal.
Visualization of the full resolution orthophoto GSD 11cm
Silver images of the Dunkirk city in 1949
![Siver images of Dunkirk in 1949](https://www.dronesimaging.com/wp-content/uploads/2019/10/Orthophoto2_Dunkerque_1949_Drones_imaging%C2%A9.jpg)
Silver images alignement step with Agisoft Metashape software
![Metashape silver images alignment step](https://www.dronesimaging.com/wp-content/uploads/2019/10/Orthophoto00_Dunkerque_1949_Drones_imaging%C2%A9.jpg)
Densification and 3D meshing step
![3D modeling of the Dunkirk city](https://www.dronesimaging.com/wp-content/uploads/2019/10/Orthophoto0_Dunkerque_1949_Drones_imaging%C2%A9.jpg)
Visualization of the orthophoto with Google Earth
![Historical orthophoto of Dunkirk](https://www.dronesimaging.com/wp-content/uploads/2019/10/Orthophoto1_Dunkerque_1949_Drones_imaging%C2%A9.jpg)
Orthophoto and Digital Surface Model of the Dunkirk city
![Historical orthophoto and DSM of Dunkirk](https://www.dronesimaging.com/wp-content/uploads/2019/10/Orthophoto3_Dunkerque_1949_Drones_imaging%C2%A9.jpg)
Port of Dunkirk - Before 1949 / After 2017
![Historical orthophoto of Dunkirk](https://www.dronesimaging.com/wp-content/uploads/2019/10/Orthophoto4_Dunkerque_1949_Drones_imaging%C2%A9.jpg)
Dunkirk port repair workshop - Before 1949 / After 2017
![Historical orthophoto of Dunkirk](https://www.dronesimaging.com/wp-content/uploads/2019/10/Orthophoto5_Dunkerque_1949_Drones_imaging%C2%A9.jpg)
Hydrocarbon storage area - Before 1949 / After 2017
![before after dunkirk](https://www.dronesimaging.com/wp-content/uploads/2019/10/Orthophoto6_Dunkerque_1949_Drones_imaging%C2%A9.jpg)
Vauban Citadel of Dunkirk - Before 1949 / After 2017
![before after dunkirk](https://www.dronesimaging.com/wp-content/uploads/2019/10/Orthophoto7_Dunkerque_1949_Drones_imaging%C2%A9.jpg)
TECHNICAL INFORMATIONS
- Data processing service : Drones Imaging company
- Aerial images source : IGN
- Spatial accuracy : metric
- Orthophoto RVB : GSD 11cm
- Total built area : 4900ha
- Aerial airborne platform : plane
- Sensor : unknown
- Photogrammetry software : Agisoft Metashape