White paper: Trimble RTX: Next generation GNSS positioning
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In 2020, Vexcel Imaging introduced the UltraCam Osprey 4.1, the first of its kind to integrate high-resolution CMOS sensors with a professional-grade nadir and oblique camera system. To achieve the precision required for modern 3D city modeling, this hardware is tightly integrated with Trimble Applanix direct georeferencing technology.
This technical paper provides an overview of how the Trimble AP Air GNSS-inertial system and POSPac PP-RTX enable surveyors to generate pixel-level accurate 3D models and orthomosaics without the need for extensive ground control points or local base stations.
