Indoor Photogrammetry Aided With Uwb Navigation

Abstract

ABSTRACT:The subject of photogrammetric surveying with mobile devices, in particular smartphones, is becoming of significant interest in the research community. Nowadays, the process of providing 3D point clouds with photogrammetric procedures is well known. However, external information is still typically needed in order to move from the point cloud obtained from images to a 3D metric reconstruction. This paper investigates the integration of information provided by an UWB positioning system with visual based reconstruction to produce a metric reconstruction. Furthermore, the orientation (with respect to North-East directions) of the obtained model is assessed thanks to the use of inertial sensors included in the considered UWB devices. Results of this integration are shown on two case studies in indoor environments.

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“…The second type of survey is based on active sensors that emit an electromagnetic signal recorded by the instrument to determine the distance measurement. Laser scanners are among the most commonly used range-based tools in the architectural field [50]. Light Detection and Ranging (LiDAR) technology, also currently integrated into the latest mobile devices, allows for quickly acquiring large amounts of 3D data, which requires further editing work to create the geometric model.…”