Results 121 to 130 of about 4,996,434 (258)

Direct Georeferencing of a Pushbroom, Lightweight Hyperspectral System for Mini-UAV Applications

Remote Sensing, 2018
Hyperspectral imagery has proven its potential in many research applications, especially in the field of environmental sciences. Currently, hyperspectral imaging is generally performed by satellite or aircraft platforms, but mini-UAV (Unmanned Aerial ...
M. Jaud, N. L. Dantec, J. Ammann, P. Grandjean, D. Constantin, J. Akhtman, K. Barbieux, P. Allemand, C. Delacourt, B. Merminod   +9 more
semanticscholar   +1 more source

Real Time Airborne Monitoring for Disaster and Traffic Applications [PDF]

, 2011
Remote sensing applications like disaster or mass event monitoring need the acquired data and extracted information within a very short time span. Airborne sensors can acquire the data quickly and on-board processing combined with data downlink is the ...
Kurz, Franz, Leitloff, Jens, Meynberg, Oliver, Reinartz, Peter, Rosenbaum, Dominik   +4 more
core  

Rulers on the road: Itinerant rule in the Holy Roman Empire, AD 919–1519

American Journal of Political Science, EarlyView.
Abstract Itinerant rule, rule exercised through traveling, was a common yet insufficiently researched, premodern form of governance. Studying the determinants of ruler itineraries in the Holy Roman Empire, AD 919–1519, we argue that rulers' visits targeted “marginal” elites.
Carl Müller‐Crepon, Clara Neupert‐Wentz, Andrej Kokkonen, Jørgen Møller   +3 more
wiley   +1 more source

Evaluating the Potential of PPK direct Georeferencing for UAV-SfM Photogrammetry and Precise Topographic Mapping

, 2019
. Images captured by Unmanned aerial vehicle (UAV) and processed by Structure from Motion (SfM) photogrammetry are increasingly used in geomorphology to obtain high resolution topography data. Conventional georeferencing using ground control points (GCPs)
He Zhang, Emilien Aldana-Jague, François Clapuyt, F. Wilken, V. Vanacker, Kristof van Oost   +5 more
semanticscholar   +1 more source

Flow‐pattern evolution of the Scandinavian Ice Sheet indicated by the subglacial lineation record over Norway, Sweden and Finland

Boreas, EarlyView.
We present a 25‐stage reconstruction of the ice‐flow pattern evolution of the Scandinavian Ice Sheet based on mapping and analysis of ~240 000 subglacial lineations and lineation fields across Norway, Sweden, Finland, and parts of NW Russia. Our reconstruction uses a glacial geomorphological inversion approach, in which we generated 611 individual ...
Frances E. G. Butcher, Anna L. C. Hughes, Helen E. Dulfer, Christopher D. Clark, Jeremy C. Ely, Emma L. M. Lewington, Benjamin M. Boyes, Alex C. Scoffield, Stephen Howcutt, Christiaan R. Diemont   +9 more
wiley   +1 more source

A Survey of Methods for Constructing 3D Urban Models From Point Clouds

Computer Graphics Forum, EarlyView.
The survey outlines a general process for constructing 3D models from point clouds and categorizes the methods based on their use of templates, basic surface primitives, hybrid approaches, or linear primitives. Additionally, the survey reviews the datasets and benchmarks that are essential for testing and training the developed methods.
Chiara Romanengo, Silvia Biasotti, Bianca Falcidieno, Daniela Cabiddu, Elia Moscoso Thompson, Michela Spagnuolo   +5 more
wiley   +1 more source

Optimizing high-resolution multi-view drone imaging for detecting foreign grains in gluten-free oat production fields [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
To reduce the high cost of manually detecting and removing gluten-containing grains from oat crops, drone imaging and deep learning can be used to automate the detection process.
R. Näsi, R. A. Oliveira, S. Rua, E. Khormashahi, A. Päivänsalo, O. Niemeläinen, E. Honkavaara, M. Niskanen   +7 more
doaj   +1 more source

Rhododendron diversity patterns provide new insights for conserving China's montane flora

Journal of Integrative Plant Biology, EarlyView.
Integrating distribution, phylogenetic, and functional trait data for 603 Rhododendron species in China identified significant conservation hotspots of multidimensional diversity, particularly in the Hengduan Mountains. Climate seasonality and topographic heterogeneity jointly influenced these patterns; however, notable conservation gaps remained ...
Ming‐Shu Zhu, Zhi‐Qiong Mo, Ya‐Yuang Luo, Chao‐Nan Fu, Ting Zhang, Michael Möller, Jie Cai, Wei Zheng, De‐Zhu Li, Lian‐Ming Gao   +9 more
wiley   +1 more source

Direct georeferencing and orthorectification of airborne digital images

, 2020
GPS/INS (Global Positioning System / Inertial Navigation System) bringspossibility of relaxing the demand for aerial triangulation in stereo modelconstruction and rectification. In this thesis a differential rectification algorithm isprogrammed with Matlab software for aerial frame camera images.
openaire   +1 more source

Specimen‐tailored ‘lived’ climate reveals precipitation onset and amount best predict specimen phenology, but only weakly predict estimated reproduction across a clade

New Phytologist, EarlyView.
Summary Herbarium specimens are widely distributed in space and time, thereby capturing diverse conditions. We reconstructed specimen ‘lived’ climate from knowledge of germination cues and collection dates for 14 annual species in the Streptanthus (s.l.) clade (Brassicaceae) to ask: which climate attributes best explain specimen phenological stage and ...
Megan Bontrager, Samantha J. Worthy, Laura Leventhal, Julin N. Maloof, Jennifer R. Gremer, Johanna Schmitt, Sharon Y. Strauss   +6 more
wiley   +1 more source