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Auflistung nach Schlagwort "Remote sensing"

Anzeige der Dokumente 21-40 von 68

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). ...
Estimation of biomass potential based on classification and height information

Müller, S.; Büscher, O.; Jandewerth, M. (Göttingen : Copernicus GmbH, 2013)

On the way to make energy supply independent from fossil resources more and more renewable energy sources have to be explored. Biomass has become an important energy resource during the last years and the consumption is ...
Exploring ALS and DIM data for semantic segmentation using CNNs

Politz, F.; Sester, M. (Katlenburg-Lindau : Copernicus Publications, 2018)

Over the past years, the algorithms for dense image matching (DIM) to obtain point clouds from aerial images improved significantly. Consequently, DIM point clouds are now a good alternative to the established Airborne ...
Flood susceptibility mapping using multi-temporal SAR imagery and novel integration of nature-inspired algorithms into support vector regression

Mehravar, Soroosh; Razavi-Termeh, Seyed Vahid; Moghimi, Armin; Ranjgar, Babak; Foroughnia, Fatemeh; Amani, Meisam (Amsterdam [u.a.] : Elsevier, 2023)

Flood has long been known as one of the most catastrophic natural hazards worldwide. Mapping flood-prone areas is an important part of flood disaster management. In this study, a flood susceptibility mapping framework was ...
Global bundle adjustment with variable orientation point distance for precise mars express orbit reconstruction

Bostelmann, Jonas; Heipke, Christian (Katlenburg-Lindau : Copernicus Publications, 2016)

The photogrammetric bundle adjustment of line scanner image data requires a precise description of the time-dependent image orientation. For this task exterior orientation parameters of discrete points are used to model ...
Gottfried Konecny: From draftsman to Professor emeritus - 75 years of involvement in photogrammetry and remote sensing

Heipke, Christian; Li, Deren (Wuhan : Wuhan Univ. Journals Press, 2021)

[no abstract available]
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 ...
Improved classification of satellite imagery using spatial feature maps extracted from social media

Leichter, Artem; Wittich, Dennis; Rottensteiner, Franz; Werner, Martin; Sester, Monika (Katlenburg-Lindau : Copernicus Publications, 2018)

In this work, we consider the exploitation of social media data in the context of Remote Sensing and Spatial Information Sciences. To this end, we explore a way of augmenting and integrating information represented by ...
Information content capabilities of very high resolution optical space imagery for updating GIS database

Alkan, Mehmet; Jacobsen, Karsten (Bellingham, WA : S P I E - International Society for Optical Engineering, 2015)

Nowadays, the number and capacity of very high resolution optical satellites grows permanently, so the access to very high resolution space images is not any more a problem. The use of Geographic Information Systems (GISs) ...
Innovative Strategies for Observations in the Arctic Atmospheric Boundary Layer (ISOBAR)-the Hailuoto 2017 campaign

Kral, Stephan T.; Reuder, Joachim; Vihma, Timo; Suomi, Irene; O'Connor, Ewan; Kouznetsov, Rostislav; Wrenger, Burkhard; Rautenberg, Alexander; Urbancic, Gabin; Jonassen, Marius O.; Båserud, Line; Maronga, Björn; Mayer, Stephanie; Lorenz, Torge; Holtslag, Albert A.M.; Steeneveld, Gert-Jan; Seidl, Andrew; Müller, Martin; Lindenberg, Christian; Langohr, Carsten; Voss, Hendrik; Bange, Jens; Hundhausen, Marie; Hilsheimer, Philipp; Schygulla, Markus (Basel : MDPI AG, 2018)

The aim of the research project "Innovative Strategies for Observations in the Arctic Atmospheric Boundary Layer (ISOBAR)" is to substantially increase the understanding of the stable atmospheric boundary layer (SBL) through ...
Integration of a generalised building model into the pose estimation of UAS images

Unger, Jakob; Rottensteiner, Franz; Heipke, Christian (Göttingen : Copernicus GmbH, 2016)

A hybrid bundle adjustment is presented that allows for the integration of a generalised building model into the pose estimation of image sequences. These images are captured by an Unmanned Aerial System (UAS) equipped ...
An international comparison of individual tree detection and extraction using airborne laser scanning

Kaartinen, Harri; Hyyppä, Juha; Yu, Xiaowei; Vastaranta, Mikko; Hyyppä, Hannu; Kukko, Antero; Holopainen, Markus; Heipke, Christian; Hirschmugl, Manuela; Morsdorf, Felix; Næsset, Erik; Pitkänen, Juho; Popescu, Sorin; Solberg, Svein; Wolf, Bern Michael; Wu, Jee-Cheng (Basel : MDPI AG, 2012)

The objective of the "Tree Extraction" project organized by EuroSDR (European Spatial data Research) and ISPRS (International Society of Photogrammetry and Remote Sensing) was to evaluate the quality, accuracy, and feasibility ...
Intersection detection based on qualitative spatial reasoning on stopping point clusters

Zourlidou, S.; Sester, Monika (Göttingen : Copernicus GmbH, 2016)

The purpose of this research is to propose and test a method for detecting intersections by analysing collectively acquired trajectories of moving vehicles. Instead of solely relying on the geometric features of the ...
Investigating 2d and 3d convolutions for multitemporal land cover classification using remote sensing images

Voelsen, M.; Teimouri, M.; Rottensteiner, F.; Heipke, C. (Katlenburg-Lindau : Copernicus Publications, 2022)

With the availability of large amounts of satellite image time series (SITS), the identification of different materials of the Earth's surface is possible with a high temporal resolution. One of the basic tasks is the ...
Investigations on feature similarity and the impact of training data for land cover classification

Voelsen, M.; Lobo Torres, D.; Feitosa, R.Q.; Rottensteiner, F.; Heipke, C. (Katlenburg-Lindau : Copernicus, 2021)

Fully convolutional neural networks (FCN) are successfully used for pixel-wise land cover classification - the task of identifying the physical material of the Earth's surface for every pixel in an image. The acquisition ...
The ISPRS benchmark on urban object classification and 3d building reconstruction

Rottensteiner, Franz; Sohn, Gunho; Jung, Jaewook; Gerke, Markus; Baillard, Caroline; Benitez, Sebastien; Breitkopf, Uwe (Göttingen : Copernicus GmbH, 2012)

For more than two decades, many efforts have been made to develop methods for extracting urban objects from data acquired by airborne sensors. In order to make the results of such algorithms more comparable, benchmarking ...
Knowledge based interpretation of moorland in aerial images

Pakzad, Kian; Heipke, Christian (London : International Society for Photogrammetry and Remote Sensing, 2000)

For the interpretation of remote sensing data the traditional methods such as multispectral classification are in many cases not sufficient. This applies especially to more complex scenes. In order to interpret such scenes ...
Land Use Classification Using Conditional Random Fields for the Verification of Geospatial Databases

Albert, Lena; Rottensteiner, Franz; Heipke, Christian (Göttingen : Copernicus GmbH, 2014)

Geospatial land use databases contain important information with high benefit for several users, especially when they provide a detailed description on parcel level. Due to many changes connected with a high effort of the ...
Luminescence emission from forward- and reverse-biased multicrystalline silicon solar cells

Bothe, Karsten; Ramspeck, K.; Hinken, D.; Schinke, Carsten; Schmidt, J.; Herlufsen, S.; Brendel, Rolf; Bauer, J.; Wagner, J.-M.; Zakharov, N.; Breitenstein, O. (College Park, MD : American Institute of Physics, 2009)

We study the emission of light from industrial multicrystalline silicon solar cells under forward and reverse biases. Camera-based luminescence imaging techniques and dark lock-in thermography are used to gain information ...
Making the third dimension (3D) explicit in hedonic price modelling : A case study of Xi’an, China

Ying, Yue; Koeva, Mila; Kuffer, Monika; Asiama, Kwabena Obeng; Li, Xia; Zevenbergen, Jaap (Basel : MDPI AG, 2021)

Recent rapid population growth and increasing urbanisation have led to fast vertical developments in urban areas. Therefore, in the context of the dynamic property market, factors related to the third dimension (3D) need ...

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Auflistung nach Schlagwort "Remote sensing"

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