Results 101 to 110 of about 73,424 (287)

Wall‐to‐wall Amazon forest height mapping with Planet NICFI, Aerial LiDAR, and a U‐Net regression model

Remote Sensing in Ecology and Conservation, EarlyView.
Tree canopy height is a key indicator of forest biomass and structure, yet accurate mapping across the Amazon remains challenging. Here, we generated a canopy height map of the Amazon forest at ~4.8 m resolution using Planet NICFI imagery and a deep learning U‐Net model trained with airborne LiDAR data.
Fabien H. Wagner, Ricardo Dalagnol, Griffin Carter, Mayumi C. M. Hirye, Shivraj Gill, Le Bienfaiteur Sagang Takougoum, Samuel Favrichon, Michael Keller, Jean P. H. B. Ometto, Lorena Alves, Cynthia Creze, Stephanie P. George‐Chacon, Shuang Li, Zhihua Liu, Adugna Mullissa, Yan Yang, Erone G. Santos, Sarah R. Worden, Martin Brandt, Philippe Ciais, Stephen C. Hagen, Sassan Saatchi   +21 more
wiley   +1 more source

On the compatibility of single‐scan terrestrial LiDAR with digital photogrammetry and field inventory metrics of vegetation structure in forest and agroforestry landscapes

Remote Sensing in Ecology and Conservation, EarlyView.
The single‐scan approach to terrestrial laser scanning (TLS) and the self‐terrain‐normalized form of drone‐based digital aerial photogrammetry (DAP) offer practical options for rapid assessment of the vegetation structure in tropical landscapes.
Magnus Onyiriagwu, Nereoh Leley, Caleb W. T. Ngaba, Anthony Macharia, Henry Muchiri, Abdalla Kisiwa, Martin Ehbrecht, Delphine Clara Zemp   +7 more
wiley   +1 more source

Modeling the Effect of Oceanic Internal Waves on the Accuracy of Multibeam Echosounders [PDF]

, 2010
When ray bending corrections are applied to multibeam echosounder (MBES) data, it is assumed that the varying layers of sound speed lie along horizontally stratified planes.
Beaudoin, Jonathan, Hamilton, Travis
core   +1 more source

Distributed AutoML framework for multi‐objective optimization of concrete crack segmentation models

Structural Concrete, EarlyView.
Abstract Monitoring cracks in concrete surfaces is essential for structural safety. While machine vision techniques have received significant interest in this domain, selecting optimal models and tuning hyperparameters remain challenging. This paper proposes a Distributed Automated Machine Learning (AutoML) framework for efficiently designing and ...
Armin Dadras Eslamlou, Shiping Huang, Belén Riveiro, M. Z. Naser   +3 more
wiley   +1 more source

L'evoluzione delle ortofotocarte

GEOmedia, 2010
The evolution of orthophotomaps Orhophotomaps are about half a century old, although the technique today is completely different to fifty years ago. In this article a short history of orthophotomaps is exposed and commented.
Attilio Selvini
doaj  

Quantifying microhabitat selection of snowshoe hares using forest metrics from UAS‐based LiDAR

Wildlife Biology, EarlyView.
Identifying the spatial and temporal scale at which animals select resources is critical for predicting how populations respond to changes in the environment. The spatial distribution of fine‐scale resources (e.g. patches of dense vegetation) are often linked with critical life‐history requirements such as denning and feeding sites.
Alexej P. K. Sirén, Franklin Sullivan, Rachel Cliché, Jeremy Goetz, Leighlan S. Prout, Jillian Kilborn, Katelyn Courtot, Michael Palace   +7 more
wiley   +1 more source

DTM-Decom II - Intercomparison exercise in analysis of DTM in decommissioning waste

, 2021
An intercomparison exercise was carried out for difficult to measure radionuclidesin activated concrete samples. The results were analysed according to ISO 13528 standard. The performance assessment was carried out using z score. Report includes an overview of the radioanalytical procedures, preliminary and final results, and performance assessments.
Leskinen, Anumaija, Tanhua-Tyrkkö, Merja, Salminen-Paatero, Susanna, Laurila, Julia, Kurhela, Kristian, Hou, Xiaolin, Stenberg Bruzell, Filippa, Suutari, Tommy, Wendel, Cato, Bourgeaux-Goget, Marie, Moussa, Joe, Stordal, Solveig, Isdahl, ingunn, Gautier, Celine, Laporte, Elodie, Giuliani, Margaux, Bubenforff, Jacques, Fichet, Pascal   +17 more
openaire   +3 more sources

AVCLNet: Multimodal Multispeaker Tracking Network Using Audio‐Visual Contrastive Learning

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Audio‐visual speaker tracking aims to determine the locations of multiple speakers in the scene by leveraging signals captured from multisensor platforms. Multimodal fusion methods can improve both the accuracy and robustness of speaker tracking.
Yihan Li, Yidi Li, Zhenhuan Xu, Hao Guo, Mengyuan Liu, Weiwei Wan   +5 more
wiley   +1 more source

La Sora scomparsa di fine '800

Archeomatica, 2015
The Earthquake of Marsica in 1915, whose centenary was remembered on 13th January 2015, destroyed almost completely the town of Sora (FR). The earthquake caused many victims and important damages to the artistic heritage: Lots of ancient buildings and ...
Paolo Accettola, Giuseppe Accettola
doaj  

Contour and Digital Terrain Models of Soil Properties Digital Maps Using Geographic Information System [PDF]

Engineering and Technology Journal, 2010
The research aims to use the technical abilities for geographic information system in the field of designing and drawing maps by saving huge amount of information in a fast and organized way also to shows data and maps from the computer in high speed. In
doaj   +1 more source