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Showing results 9 to 11 of 11
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  • Small scale landform mapping by integrated optical (2D) and terrain (3D) UAV data

    • Authors: d'Oleire-Oltmanns, S.;  Advisor: -;  Participants: - (2016)

  • The potential of UAV-based data for fine-scaled remote sensing applications has been investigated for several years and is still increasing. The presented study is attached to the field of landform mapping. Mapping and extracting of landforms contributes to different sectors such as agriculture, disaster management and nature conservation. In this study recent experiences and results from working in a nature conservation area are presented. The chosen study area ’Haarmoos’ is located southwest of the lake Abtsdorf, Bavaria and is declared under the European wide Natura 2000 network. Optical imagery and terrain data were analyzed in an integrated approach based on object-based image an...
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  • The potential of very high spatial remote sensing in smallholder agriculture

    • Authors: Stratoulias, Dimitris;  Advisor: -;  Participants: - (2015)

  • Smallholder farmers contribute to more than 50% of the world’s annual production of cereals, meat and dairy products and they cultivate more than 80% of the total agricultural area in Asia and Sub-Saharan Africa. Conversely, it is estimated that more than 2.5 billion people depend directly on the agricultural sector. Earth Observation has been a tool for agronomists with ever-increasing capability, however, the case of agriculture in low-income countries imposes challenges, for instance in recognizing mixed- and inter-cropping, the small size of the farm plots and lack of sound crop management systems, which increase the uncertainty of information derived from remotely sensed data. Th...
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  • Towards UAV-based Land Tenure Data Acquisition in RwandaNeeds Assessment and Technology Response

    • Authors: Stöcker C.;  Advisor: -;  Participants: Ho S.; Koeva M.; Nkerabigwi J.; Schmidt C.; Zevenbergen J.; Bennett R. (2018.)

  • This study sheds light on the needs assessment and design process of UAV-based data acquisition workflows and reveals results of data collection activities and initial UAV test flights in Rwanda. Insights into operational challenges and data quality measures are presented. The paper concludes that the tool of UAV-based data collection seems to offer an answer to the majority of the expressed needs which were assessed with the NGT method. However, the realization of the test flights also reveals three specific challenges that have to be addressed before UAVs can be used for large scale mapping in Rwanda.