Results 91 to 100 of about 219,149 (197)

Comparison of Backpack, Handheld, Under-Canopy UAV, and Above-Canopy UAV Laser Scanning for Field Reference Data Collection in Boreal Forests

open access: yesRemote Sensing, 2020
In this work, we compared six emerging mobile laser scanning (MLS) technologies for field reference data collection at the individual tree level in boreal forest conditions.
Eric Hyyppä   +6 more
doaj   +1 more source

Canopy structural modeling using object-oriented image classification and laser scanning [PDF]

open access: yes, 2008
A terrestrial laser scanning (TLS) experiment was carried out in the EAGLE 2006 campaign to characterize and model the canopy structure of the Speulderbos forest. Semi-variogram analysis was used to describe spatial variability of the surface.
Dost, R.   +3 more
core  

Building reconstruction from airborne laser scanning data [PDF]

open access: yesGeo-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   +1 more source

Beyond single receptive field: A receptive field fusion-and-stratification network for airborne laser scanning point cloud classification [PDF]

open access: yesIsprs Journal of Photogrammetry and Remote Sensing, 2022
Yongqiang Mao   +6 more
semanticscholar   +1 more source

Global Airborne Laser Scanning Data Providers Database (GlobALS) - A New Tool for Monitoring Ecosystems and Biodiversity

open access: yesRemote Sensing, 2020
Protection and recovery of natural resource and biodiversity requires accurate monitoring at multiple scales. Airborne Laser Scanning (ALS) provides high-resolution imagery that is valuable for monitoring structural changes to vegetation, providing a ...
K. Stereńczak   +6 more
semanticscholar   +1 more source

Exploiting Full-Waveform Lidar Data and Multiresolution Wavelet Analysis for Vertical Object Detection and Recognition [PDF]

open access: yes, 2007
A current challenge in performing airport obstruction surveys using airborne lidar is lack of reliable, automated methods for extracting and attributing vertical objects from the lidar data.
Parrish, Christopher
core   +2 more sources

Detecting European Aspen (Populus tremula L.) in Boreal Forests Using Airborne Hyperspectral and Airborne Laser Scanning Data

open access: yesRemote Sensing, 2020
Sustainable forest management increasingly highlights the maintenance of biological diversity and requires up-to-date information on the occurrence and distribution of key ecological features in forest environments. European aspen (Populus tremula L.) is
A. Viinikka   +8 more
semanticscholar   +1 more source

Estimating site index from short term TanDEM-X canopy height models [PDF]

open access: yes, 2016
The tree height growth from three vegetation seasons was fitted to height growth curves in order to estimate the site index, which is a variable related to forest site productivity.
Fransson, Johan, Persson, Henrik
core   +1 more source

Airborne laser scanning raster data visualization

open access: yes, 2017
This guide provides an insight into a range of visualization techniques for high-resolution digital elevation models (DEMs). It is provided in the context of investigation and interpretation of various types of historical and modern, cultural and natural small-scale relief features and landscape structures.
Ralf Hesse, Žiga Kokalj
openaire   +1 more source

Estimation of forest variables using airborne laser scanning [PDF]

open access: yes, 2003
Airborne laser scanning can provide three-dimensional measurements of the forest canopy with high efficiency and precision. There are presently a large number of airborne laser scanning instruments in operation.
Holmgren, Johan
core  

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