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Towards a combination between UAV-image block and depth-maps data from smartphones
  • Open thesis topics
    • (P) - Planning for terrestrial laser scanning ...
    • (P) - Towards a combination between UAV-image ...
    • (P/G) - Spatial-semantic based mapping for UAV ...

Towards a combination between UAV-image block and depth-maps data from smartphones

Description / Story

UAV imagery has become more potential in various applications such as topographic mapping, infrastructure maintenance, construction monitoring, inspection, etc. At the same time, this strongly depends on the photogrammetric process of UAV image block. If the photogrammetric results of an image block, for instance, the estimated image positions and scale information do not meet the required conditions e.g. the geometric accuracy, then these results will be seen as not valid and therefore not recommended to use in farther applications. From this point of view, we are motived to use depth-map data obtained from smartphones/iPad mounted to handheld RTK Rover as additional datasets that should be integrated/implemented into UAV photogrammetric image block (Fig. 1). In other words, we aim to realize an intelligent combination between smartphone and UAV based photogrammetry. In general, a smartphone can not only be used anytime and anywhere, but is also more cost-effective than an existing photogrammetric UAV. It provides high-resolution imagery and attitude data, and recently laser-based range data (depth-maps), which can be used to define the image scale.

Verbesserung des photogrammetrischen Prozesses von UAV-Bilddaten mit der Verwendung von Smartphone-basierte Tiefenkartendaten

Objectives

  • To prove and evaluate the possibility of a smartphone as an additional system for a photogrammetric UAV system. Here, the geotagged smartphone photos will be used to produce e.g. digital terrain models, orthoimages, 3D object reconstruction.
  • Transferring the position and scale information obtained by smartphone on the ground, to be transferred to the UAV-based imagery. On one hand, this can improve the image block, and on the other hand reduce the time/cost for the extensive geodetic network measurements.

Type of thesis

✓ Student research project

✗ Bachelor thesis

✓ Master thesis

 


Language

 ✓ German

 ✓ English


Examiner / Supervisor

Examiner: Prof. Markus Gerke

Supervisor: Dr.-Eng. Ahmed Alamouri


Updated 17.10.2022 by C.Berger

 

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