Auflistung nach Schlagwort "Lidar"

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  • Accuracy analysis of a low-cost platform for positioning and navigation 
    Hofmann, Sabine; Kuntzsch, C.; Schulze, Malte Jan; Eggert, D.; Sester, Monika (Göttingen : Copernicus GmbH, 2012)
    This paper presents an accuracy analysis of a platform based on low-cost components for landmark-based navigation intended for research and teaching purposes. The proposed platform includes a LEGO MINDSTORMS NXT 2.0 kit, ...
  • Assessment of Surface-Layer Coherent Structure Detection in Dual-Doppler Lidar Data Based on Virtual Measurements 
    Stawiarski, Christina; Träumner, Katja; Kottmeier, Christoph; Knigge, Christoph; Raasch, Siegfried (Berlin : Kluwer Academic Publishers, 2015)
    Dual-Doppler lidar has become a useful tool to investigate the wind-field structure in two-dimensional planes. However, lidar pulse width and scan duration entail significant and complex averaging in the resulting retrieved ...
  • Contextual classification of point cloud data by exploiting individual 3d neigbourhoods 
    Weinmann, M.; Schmidt, Alena; Mallet, C.; Hinz, Stefan; Rottensteiner, Franz; Jutzi, B. (Göttingen : Copernicus GmbH, 2015)
    The fully automated analysis of 3D point clouds is of great importance in photogrammetry, remote sensing and computer vision. For reliably extracting objects such as buildings, road inventory or vegetation, many approaches ...
  • Data mining for classification of high volume dense lidar data in an urban area 
    Chauhan, I.; Brenner, Claus (Göttingen : Copernicus GmbH, 2018)
    3D LiDAR point cloud obtained from the laser scanner is too dense and contains millions of points with information. For such huge volume of data to be sorted, identified, validated and be used for prediction, data mining ...
  • Enhancing the resolution of urban digital terrain models using mobile mapping systems 
    Feng, Yu; Brenner, Claus; Sester, Monika (Göttingen : Copernicus GmbH, 2018)
    Digital Terrain Models (DTMs) are essential surveying products for terrain based analyses, especially for overland flow modelling. Nowadays, many high resolution DTM products are generated by Airborne Laser Scanning (ALS). ...
  • Extraction of fluvial networks in lidar data using marked point processes 
    Schmidt, Alena; Rottensteiner, Franz; Sörgel, Uwe; Heipke, Christian (Göttingen : Copernicus GmbH, 2014)
    We propose a method for the automatic extraction of fluvial networks in lidar data with the aim to obtain a connected network represented by the fluvial channels' skeleton. For that purpose we develop a two-step approach. ...
  • Hierarchical higher order crf for the classification of airborne lidar point clouds in urban areas 
    Niemeyer, Joachim; Rottensteiner, Franz; Sörgel, Uwe; Heipke, Christian (Göttingen : Copernicus GmbH, 2016)
    We propose a novel hierarchical approach for the classification of airborne 3D lidar points. Spatial and semantic context is incorporated via a two-layer Conditional Random Field (CRF). The first layer operates on a point ...
  • Lidars for vehicles: from the requirements to the technical evaluation 
    Dai, Zhuoqun; Li, Yang; Sundermeier, Max Caspar; Grabe, Tobias; Lachmayer, Roland (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2021-06-17)
    Abstract— ADAS (Advanced Driver Assistance Systems) is a collective term of vehicle mounted sensors and devices aiming to improve traffic safety and realize high-level autonomous driving. Lidar systems are considered an ...
  • Monitoring and change detection of wadden sea areas using lidar data 
    Schmidt, Alena; Sörgel, Uwe (Göttingen : Copernicus GmbH, 2013)
    In coastal areas morphological changes of various kinds are caused by tidal flows, storms, climate change, and human activities. For these reasons a recurrent monitoring becomes necessary in order to detect undesired changes ...
  • Monitoring concepts for coastal areas using lidar data 
    Schmidt, Alena; Rottensteiner, Franz; Sörgel, Uwe (Göttingen : Copernicus GmbH, 2013)
    Coastal areas are characterized by high spatial and temporal variability. In order to detect undesired changes at early stages, enabling rapid countermeasures to mitigate or minimize potential harm or hazard, a recurrent ...
  • Remote Sensing of Wave Overtopping on Dynamic Coastal Structures 
    Blenkinsopp, Chris E.; Baldock, Tom E.; Bayle, Paul M.; Foss, Ollie; Almeida, Luis P.; Schimmels, Stefan (Basel : MDPI, 2022)
    The development of coastal regions combined with rising sea levels is leading to an increasing risk of coastal flooding caused by wave overtopping of natural beaches and engineered coastal structures. Previous measurements ...
  • Review of remote sensing for land administration: Origins, debates, and selected cases 
    Bennett, Rohan Marc; Koeva, Mila; Asiama, Kwebana (Basel : MDPI AG, 2021)
    Conventionally, land administration—incorporating cadastres and land registration—uses ground-based survey methods. This approach can be traced over millennia. The application of photogrammetry and remote sensing is ...
  • Validation of DEMs derived from high resolution sar data: a case study on barcelona 
    Sefercik, Umut G.; Schunert, Alexander; Soergel, Uwe; Watanabe, Kinichiro (Göttingen : Copernicus GmbH, 2012)
    In recent years, Synthetic Aperture Radar (SAR) data have been widely used for scientific applications and several SAR missions were realized. The active sensor principle and the signal wavelength in the order of centimeters ...