UAV ONBOARD PHOTOGRAMMETRY AND GPS POSITIONNING FOR EARTHWORKS
- 1Vinci-Construction-Terrassement, 1, Rue du docteur Charcot, 91421 Morangis, France
- 2Université Paris-Est, IGN, ENSG, LOEMI , 6-8 Avenue Blaise Pascal, 77455 Champs-sur-Marne, France
- 3ENSTA Bretagne-OSM Team, 2 rue Francois Verny, 29806 Brest, France
- 4Université Paris-Est, IGN, SRIG, LOEMI, 73 avenue de Paris, 94160 Saint-Mande, France
Keywords: UAV, GPS, photogrammetry, direct georeferencing, metrology, lever-arm, delay
Abstract. Over the last decade, Unmanned Airbone Vehicles (UAVs) have been largely used for civil applications. Airborne photogrammetry has found place in these applications not only for 3D modeling but also as a measurement tool. Vinci-Construction-Terrassement is a private company specialized in public works sector and uses airborn photogrammetry as a mapping solution and metrology investigation tool on its sites. This technology is very efficient for the calculation of stock volumes for instance, or for time tracking of specific areas with risk of landslides. The aim of the present work is to perform a direct georeferencing of images acquired by the camera leaning on an embedded GPS receiver. UAV, GPS receiver and camera used are low-cost models and therefore data processing is adapted to this particular constraint.