Archives par mot-clé : photogrammetrie

Photogrammetry : boat surveys

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 Et

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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.