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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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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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Focusing of Airborne Synthetic Aperture Radar Data From Highly Nonlinear Flight Tracks
TLDR
This paper describes the processing of SAR data acquired from highly nonlinear flight tracks, typical of sensors mounted on small aircraft or drones. Expand
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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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Assessment of the influence of flying altitude and scan angle on biophysical vegetation products derived from airborne laser scanning
Airborne Laser Scanning (ALS) has been established as a valuable tool for the estimation of biophysical vegetation properties such as tree height, crown width, fractional cover and leaf area indexExpand
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Vibration and Rotation in Millimeter-Wave SAR
TLDR
Synthetic aperture radar (SAR) provides high-resolution images of static ground scenes, whereas processing of data containing ground object motion results in varying focusing effects. Expand
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Sentinel-1A Product Geolocation Accuracy: Commissioning Phase Results
TLDR
This paper describes the measurement campaign, the methods used during geolocation estimation, and presents best estimates of the product Absolute Location Error (ALE) available at the beginning of S1A’s operational phase. Expand
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Glacier surface velocity estimation using repeat TerraSAR-X images: Wavelet- vs. correlation-based image matching
TLDR
A comparison of cross-correlation optimisation and dense image matching algorithms for glacier surface velocity estimation . Expand
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Analysis of a Maximum Likelihood Phase Estimation Method for Airborne Multibaseline SAR Interferometry
TLDR
In this paper, we apply and assess the ML approach on real data, acquired with an experimental Ka-band multibaseline system. Expand
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A revised radiometric normalisation standard for SAR
TLDR
Improved geometric accuracy in SAR sensors implies that more complex models of the Earth may be used not only to geometrically rectify imagery, but also to more robustly calibrate their radiometry. Expand
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