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Estimation of LAI and fractional cover from small footprint airborne laser scanning data based on gap fraction
Abstract We evaluate the potential of deriving fractional cover (fCover) and leaf area index (LAI) from discrete return, small footprint airborne laser scanning (ALS) data. fCover was computed as theExpand
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An International Comparison of Individual Tree Detection and Extraction Using Airborne Laser Scanning
TLDR
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 extraction methods, mainly based on laser scanner data. Expand
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LIDAR-based geometric reconstruction of boreal type forest stands at single tree level for forest and wildland fire management
Vegetation structure is an important parameter in fire risk assessment and fire behavior modeling. We present a new approach deriving the structure of the upper canopy by segmenting single trees fromExpand
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Forest Canopy Gap Fraction From Terrestrial Laser Scanning
TLDR
A terrestrial laser scanner (TLS) was used to measure canopy directional gap fraction distribution in forest stands in the Swiss National Park, eastern Switzerland. Expand
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Multi-source land cover classification for forest fire management based on imaging spectrometry and LiDAR data
TLDR
We propose an improved land cover mapping based on a single SVM classifier combining the spectral and spatial information dimensions provided by imaging spectrometry and LiDAR. Expand
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Assessing forest structural and physiological information content of multi-spectral LiDAR waveforms by radiative transfer modelling
The concept for a multi-spectral, full-waveform canopy LiDAR instrument was tested by simulating return waveforms using a model providing ecological sound tree structure (TREEGROW) and a model ofExpand
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Radiative transfer modeling within a heterogeneous canopy for estimation of forest fire fuel properties
Imaging spectrometer data were acquired over conifer stands to retrieve spatially distributed information on canopy structure and foliage water content, which may be used to assess fire risk and toExpand
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Canopy closure, LAI and radiation transfer from airborne LiDAR synthetic images
Forest canopy structure and associated solar radiation fluxes greatly influence snow accumulation and melt and have large implications for water availability from forested areas. The ability toExpand
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Fusion of imaging spectrometer and LIDAR data over combined radiative transfer models for forest canopy characterization
A comprehensive canopy characterization of forests is derived from the combined remote sensing signal of imaging spectrometry and large footprint LIDAR. The inversion of two linked physically basedExpand
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CLUSTERING IN AIRBORNE LASER SCANNING RAW DATA FOR SEGMENTATION OF SINGLE TREES
TLDR
We explore the potential of delineating single trees from laser scanner raw data (x,y,ztriples) through cluster analysis and validate this approach with a dataset of about 2000 georeferenced trees. Expand
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