Results 11 to 20 of about 944,285 (292)

Leptophilic Dark Matter with $Z'$ interactions [PDF]

, 2014
We consider a scenario where dark matter (DM) interacts exclusively with Standard Model (SM) leptons at tree level. Due to the absence of tree-level couplings to quarks, the constraints on leptophilic dark matter arising from direct detection and hadron ...
Bell, Nicole F., Cai, Yi, Leane, Rebecca K., Medina, Anibal D.   +3 more
core   +2 more sources

Deep Learning-Based Automated Forest Health Diagnosis From Aerial Images

IEEE Access, 2020
Global climate change has had a drastic impact on our environment. Previous study showed that pest disaster occured from global climate change may cause a tremendous number of trees died and they inevitably became a factor of forest fire.
Chia-Yen Chiang, Chloe Barnes, Plamen Angelov, Richard Jiang   +3 more
doaj   +1 more source

Remotely Sensed Tree Characterization in Urban Areas: A Review

Remote Sensing, 2021
Urban trees and forests provide multiple ecosystem services (ES), including temperature regulation, carbon sequestration, and biodiversity. Interest in ES has increased amongst policymakers, scientists, and citizens given the extent and growth of ...
Luisa Velasquez-Camacho, Adrián Cardil, Midhun Mohan, Maddi Etxegarai, Gabriel Anzaldi, Sergio de-Miguel   +5 more
doaj   +1 more source

Analysis of Using Dense Image Matching Techniques to Study the Process of Secondary Succession in Non-Forest Natura 2000 Habitats

Remote Sensing, 2019
Secondary succession is considered a threat to non-forest Natura 2000 habitats. Currently available data and techniques such as airborne laser scanning (ALS) data processing can be used to study this process. Thanks to these techniques, information about
Katarzyna Osińska-Skotak, Łukasz Jełowicki, Krzysztof Bakuła, Dorota Michalska-Hejduk, Justyna Wylazłowska, Dominik Kopeć   +5 more
doaj   +1 more source

Template matching technique for smart tree detection and counting with UAV imagery [PDF]

E3S Web of Conferences
The identification of individual trees is an important research topic in forestry, remote sensing, and computer vision. It is a requirement in forest management and monitoring because it provides key forest inventory information, vegetation distribution ...
Ameslek Oumaima, Ameslek, Zahir Hafida, Mitro Soukaina, El Bachaoui Mostafa   +4 more
doaj   +1 more source

The Combined Use of UAV-Based RGB and DEM Images for the Detection and Delineation of Orange Tree Crowns with Mask R-CNN: An Approach of Labeling and Unified Framework

Future Internet, 2022
In this study, we used images obtained by Unmanned Aerial Vehicles (UAV) and an instance segmentation model based on deep learning (Mask R-CNN) to evaluate the ability to detect and delineate canopies in high density orange plantations.
Felipe Lucena, Fabio Marcelo Breunig, Hermann Kux   +2 more
doaj   +1 more source

An International Comparison of Individual Tree Detection and Extraction Using Airborne Laser Scanning

Remote Sensing, 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 of automatic tree ...
Bernd Michael Wolf, Jee-Cheng Wu, Xiaowei Yu, Svein Solberg, Juho Pitkänen, Sorin Popescu, Manuela Hirschmugl, Felix Morsdorf, Erik Næsset, Christian Heipke, Markus Holopainen, Mikko Vastaranta, Hannu Hyyppä, Antero Kukko, Harri Kaartinen, Juha Hyyppä   +15 more
doaj   +1 more source

A Robust Stepwise Clustering Approach to Detect Individual Trees in Temperate Hardwood Plantations using Airborne LiDAR Data

Remote Sensing, 2023
Precise tree inventory plays a critical role in sustainable forest planting, restoration, and management. LiDAR-based individual tree detection algorithms often focus on finding individual treetops to discern tree positions.
Gang Shao, Songlin Fei, Guofan Shao
doaj   +1 more source

A Grammatical Inference Approach to Language-Based Anomaly Detection in XML [PDF]

, 2013
False-positives are a problem in anomaly-based intrusion detection systems. To counter this issue, we discuss anomaly detection for the eXtensible Markup Language (XML) in a language-theoretic view.
Lampesberger, Harald
core   +1 more source

Ocena możliwości wykorzystania technologii mobilnego skanowania laserowego do identyfikacji drzew i ich wymiarów na przykładzie wybranych drzewostanów bukowych [PDF]

Leśne Prace Badawcze
This article evaluates the usefulness of mobile laser scanning technology (MLS) for determining selected tree and stand parameters. Usefulness was determined based on measurements taken with the Zeb-Horizon mobile scanner in four beech stands located in ...
Grzegorz Zajączkowski, Aleksandra Falkowska   +1 more
doaj   +1 more source