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Study of lever-arm effect using embedded photogrammetry and on-board gps receiver on uav for metrological mapping purpose and proposal of a free ground measurements calibration procedure,
Abstract : Nowadays, Unmanned Aerial Vehicle (UAV) on-board photogrammetry knows a significant growth due to the democratization of using drones in the civilian sector. Also, due to changes in regulations laws governing the rules of inclusion of a UAV in the airspace which become suitable for the development of professional activities. Fields of application of photogrammetry are diverse, for instance: architecture, geology, archaeology, mapping, industrial metrology, etc. Our research concerns the latter area. Vinci-Construction- Terrassement is a private company specialized in public earthworks that uses UAVs for metrology applications. This article deals with maximum accuracy one can achieve with a coupled camera and GPS receiver system for direct-georeferencing of Digital Surface Models (DSMs) without relying on Ground Control Points (GCPs) measurements. This article focuses specially on the lever-arm calibration part. This proposed calibration method is based on two steps: a first step involves the proper calibration for each sensor, i.e. to determine the position of the optical center of the camera and the GPS antenna phase center in a local coordinate system relative to the sensor. A second step concerns a 3d modeling of the UAV with embedded sensors through a photogrammetric acquisition. Processing this acquisition allows to determine the value of the lever-arm offset without using GCPs.
https://hal.archives-ouvertes.fr/hal-01391298
Contributeur : Pierre Bosser <>
Soumis le : jeudi 3 novembre 2016 - 10:52:02
Dernière modification le : mercredi 24 juin 2020 - 16:19:51
Contributeur : Pierre Bosser <>
Soumis le : jeudi 3 novembre 2016 - 10:52:02
Dernière modification le : mercredi 24 juin 2020 - 16:19:51
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