Results 61 to 70 of about 2,045,190 (230)

Detection and Segmentation of Small Trees in the Forest-Tundra Ecotone Using Airborne Laser Scanning

Remote Sensing, 2016
Due to expected climate change and increased focus on forests as a potential carbon sink, it is of interest to map and monitor even marginal forests where trees exist close to their tolerance limits, such as small pioneer trees in the forest-tundra ...
Marius Hauglin, Erik Næsset
doaj   +1 more source

Direct and automatic measurements of stem curve and volume using a high-resolution airborne laser scanning system

Science of Remote Sensing, 2022
Today, high-quality reference tree measurements, including the position, diameter, height and volume, are cumbersome and slow to carry out, but highly needed for forest inventories based on airborne laser scanning. Mobile laser scanning technologies hold
Eric Hyyppä, Antero Kukko, Harri Kaartinen, Xiaowei Yu, Jesse Muhojoki, Teemu Hakala, Juha Hyyppä   +6 more
doaj   +1 more source

Assessing plant water status: Part 2 – Non‐destructive and remote sensing approaches

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Precise, real time and non‐destructive assessment of plant water status is important for advancing plant physiological understanding, optimizing water usage, improving crop resilience and supporting precision agriculture in the face of increasingly variable climatic conditions.
Naila Farooq, Bo Zhang, Bastian Leander Franzisky, Tasawer Abbas, Jochen Taiber, Martin Koch, Ian C Dodd, Christoph‐Martin Geilfus   +7 more
wiley   +1 more source

Combining optical satellite data and airborne laser scanner data for vegetation classification [PDF]

, 2011
The aim of this study was to investigate to which degree the accuracy of vegetation classification could be improved by combining optical satellite data and airborne laser scanner (ALS) data, compared with using satellite data only.
Nordkvist, Karin,, Sveriges lantbruksuniversitet., Olsson, Håkan,, Holmgren, Johan,, Håkan Olsson, Granholm, Ann-Helen, Karin Nordkvist, Nordkvist, Karin, Johan Holmgren, Ann-Helen Granholm, Holmgren, Johan, Nilsson, Mats,, Nilsson, Mats, Olsson, Håkan, Granholm, Ann-Helen,, Mats Nilsson   +15 more
core   +1 more source

Integrating SfM, LiDAR and TLS for High‐Resolution Monitoring of Palsa Surface Changes and Degradation Dynamics

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Understanding fine‐scale surface changes is crucial for quantifying ecosystem dynamics and detecting landscape changes. Palsas, comparably small peatland elevations with an ice‐rich permafrost core, undergo natural cycles of growth and degradation. They can also serve as indicators of climate change in subarctic regions. Because they typically
Alexander Störmer, Timo Kumpula, Pasi Korpelainen, Benjamin Burkhard   +3 more
wiley   +1 more source

Robotics for Crop Pollination: Recent Advances and Future Direction

Journal of Field Robotics, EarlyView.
ABSTRACT There is great interest in alternative pollination strategies for crop production in the face of climate change and perennial threats to the traditional pollination mechanisms. This review explores the potential of robotic pollination as a promising solution to these challenges affecting crop fertilization, agricultural sustainability, and ...
Ranjan Sapkota, Matthew D. Whiting, Dawood Ahmed, Manoj Karkee   +3 more
wiley   +1 more source

Building reconstruction from airborne laser scanning data [PDF]

Geo-spatial Information Science, 2013
The research on building model reconstruction has been a long-term hot topic in both the photogrammetry and computer vision areas. The airborne laser scanning technique provides new opportunities for building model reconstruction. Despite many investigations on building reconstruction using point clouds, there are still many unresolved problems that ...
openaire   +2 more sources

Indoor UAV for Nuclear Investigation: Experimental Qualification and Field Feedback

Journal of Field Robotics, EarlyView.
ABSTRACT Indoor Unmanned Aerial Vehicles (UAVs) have recently gained interest for inspection and investigation tasks in hazardous environments. In the nuclear field, indoor UAVs offer promising capabilities to reduce workers' exposure to ionizing radiation while accessing confined or elevated areas.
Jérémy Seyssaud, Marie Cuozzo, Julien Favrichon, Benjamin Catania, Eric Cantrel, Tadec Marraine, Jérôme Boch   +6 more
wiley   +1 more source

Evaluation of remote sensing techniques for estimation of forest variables at stand level [PDF]

, 2006
There is a continuous need for accurate forest description. Forest data at stand level is required in forestry planning, in particular when scheduling treatments within the next few years.
Magnusson, Mattias
core   +1 more source

Natural antibacterial silk produced by feeding silkworms with human hair derived carbon dots

Responsive Materials, EarlyView.
Blue‐fluorescent and antibacterial carbon dots, prepared from Crinis Carbonisatus (a traditional Chinese medicine made by calcinating human hair), are fed to silkworms to produce multifunctional silk, which retains its inherent mechanical properties, exhibits blue fluorescence, possesses antibacterial activity, and promotes the wound healing of rats as
Zhao‐Fan Wu, Xiao‐Feng Shi, Xiao‐Xiao Luo, Xi‐Rong Zhang, Yuan‐Qing Mao, Huan‐Ming Xiong   +5 more
wiley   +1 more source