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Photogrammetry from Drone

3d from photos

It is not always easy to obtain 3D data on some of the city’s sites. Furthermore, these sites can be extremely difficult to reach. If overflight is permitted in the area, a drone survey is an interesting solution.

In this case, we are in the Grand Bay area of Mauritius. Because of the dense urbanization and the importance of vegetation cover, surveying from the ground is nearly impossible. Continuer la lecture de Photogrammetry from Drone

Photoscan-photogrammetry workflow.

Shooting / Prise de vue

47 photographs were taken (18mm, F/13) with the flash, at heights spanning from 10 cm to 1 m from the ground. The surrounding stabilisation boards were left, to help Photoscan rebuilding the geometry. The photo series was imported into Photoscan.

47 photographies ont été prises (18mm, focale F/13) au flash à des hauteurs variant de 10 cm à 1 mètre du sol. Les planches de stabilisation pourtourantes ont été laissées afin d’aider Photoscan à remonter la géométrie. La série de photos est importée dans Photoscan. Continuer la lecture de Photoscan-photogrammetry workflow.