When information about a site is not available, it is interesting to make a survey by drone to realize a photogrammetry. The photogrammetry will allow to build a 3D model and to extract the necessary information to understand the site.
The preparation of the drone flight is essential. The flight must be able to cover the entire site from different angles. Otherwise, there would be deformations or missing information.
The example presented here presents the workflow for creating a 3D model from an aerial film shot with a drone and the processing of the data for further work.
Photogrammetric surveying of ships is a complex exercise due to the nature of the objects to be recorded. The advantage of a complete survey, as opposed to a half-hull survey, is that it allows the deformations of the structures to be identified, evaluated and diagnosed.
In the example below, the demonstration is made on a model. The principles and difficulties are identical to a 1:1 scale model, but with much better accessibility. For examples of real boats, see the following pages
Photogrammetry helps the archeologist to have a accurate orthophotos where it can be very hard to install a camera. But instead of just getting the final result, it could also be interresting to record each step not only for visualisation but also for calculation.
Laurent Lescop – 3D Viz – Parametric Design – Immersion – AI // Recherches et réalisations de Laurent Lescop en visualisation 3D, conception paramétrique, immersion et IA appliquées à l'architecture.
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