Maltby Surveys have been using photogrammetric methods for surveying and mapping since 1985. The confidence in data derived from aerial imagery whether that comes from fixed wing aircraft, helicopter, or Unmanned Aerial Vehicles (UAV), comes from the accuracy of the ground control. Maltby Surveys have a long history of establishing high precision ground control to help in the process of ortho photo rectification, heighting and quality assurance.
Modern UAV’s now come equipped with inertial navigation systems and Network RTK GNSS solutions onboard offering the highest levels of positional accuracy which in turn improves the accuracy of the photographic registration. Notwithstanding this accuracy improvement, as geomatics professionals, Maltby Surveys always prove these data sets against conventionally established ground control points. This is carried out utilizing high precision Leica GPS and Total Station equipment. The purpose of this proving exercise is to establish redundant information which serves to corroborate the values derived from the aerial imagery thus providing the client with confidence in the reliability and accuracy of the data.
Whether your requirement is for aerial imagery and video, topographical mapping, heritage measured building surveys, volumetric surveys, or simply visual inspections for safety or condition, please contact us for advice.
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