Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-3/W4, 65-70, 2016
http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-3-W4/65/2016/
doi:10.5194/isprs-archives-XL-3-W4-65-2016
 
17 Mar 2016
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
M. Daakir1,4, M. Pierrot-Deseilligny2,4, P. Bosser3, F. Pichard1, C. Thom4, and Y. Rabot1 1Vinci-Construction-Terrassement, 1, Rue du docteur Charcot, 91421 Morangis, France
2Universit´e 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
4Universit´e Paris-Est, IGN, SRIG, LOEMI, 73 avenue de Paris, 94160 Saint-Mande, France
Keywords: UAV, photogrammetry, GPS, lever-arm, calibration, direct-georeferencing, synchronisation, MicMac 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.
Conference paper (PDF, 1788 KB)


Citation: Daakir, M., Pierrot-Deseilligny, M., Bosser, P., Pichard, F., Thom, C., and Rabot, Y.: 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, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-3/W4, 65-70, doi:10.5194/isprs-archives-XL-3-W4-65-2016, 2016.

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