Results 21 to 30 of about 3,126,769 (201)

FULL WAVEFORM LIDAR EXPLOITATION TECHNIQUE AND ITS EVALUATION IN THE MIXED FOREST HILLY REGION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
In this paper a full waveform exploitation technique and its evaluation in the mixed forest hilly region is presented. The increment in ground penetration by using the full waveform exploitation technique compared to the discrete LiDAR pulses during ...
S. Chhatkuli   +4 more
doaj   +1 more source

Evaluation of a New Lightweight UAV-Borne Topo-Bathymetric LiDAR for Shallow Water Bathymetry and Object Detection

open access: yesSensors, 2022
Airborne LiDAR bathymetry (ALB) has proven to be an effective technology for shallow water mapping. To collect data with a high point density, a lightweight dual-wavelength LiDAR system mounted on unmanned aerial vehicles (UAVs) was developed. This study
Dandi Wang   +5 more
doaj   +1 more source

A Comparison of Surface Slopes Extracted from ICESat Waveform Data and High Resolution DEM [PDF]

open access: yesEPJ Web of Conferences, 2020
Surface slope is an important topographic variable, accurate surface slope can support many research appliacations. Large footprint full waveform data has been used to estimate the surface slope and performes well.
Xie Huan   +3 more
doaj   +1 more source

End-to-End Full-Waveform Echo Decomposition Based on Self-Attention Classification and U-Net Decomposition

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Different from conventional decomposition methods, which utilize several steps to obtain the final result, a self-attention-based neural network, Attention Full-waveform Decomposition Network (AFD-Net), is discussed in this article for end-to-end full ...
Gangping Liu, Jun Ke
doaj   +1 more source

On the use of neural networks for full waveform inversion

open access: yesComputer Methods in Applied Mechanics and Engineering, 2023
Neural networks have recently gained attention in solving inverse problems. One prominent methodology are Physics-Informed Neural Networks (PINNs) which can solve both forward and inverse problems. In the paper at hand, full waveform inversion is the considered inverse problem. The performance of PINNs is compared against classical adjoint optimization,
Leon Herrmann   +3 more
openaire   +3 more sources

The imprint of crustal density heterogeneities on regional seismic wave propagation [PDF]

open access: yes, 2016
Density heterogeneities are the source of mass transport in the Earth. However, the 3-D density structure remains poorly constrained because travel times of seismic waves are only weakly sensitive to density.
A. Fichtner   +7 more
core   +2 more sources

Seismic full waveform inversion in archaeological prospecting [PDF]

open access: yes, 2023
Seismic full waveform inversion is introduced as novel high-resolution imaging tool in archaeological prospection. The full waveform inversion approach allows the high-resolution characterization of low-contrast sedimentary layers, high-contrast stone ...
De Nil, Denise   +6 more
core   +1 more source

ANALYSIS AND APPLICATION OF LIDAR WAVEFORM DATA USING A PROGRESSIVE WAVEFORM DECOMPOSITION METHOD [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Due to rich information of a full waveform of airborne LiDAR (light detection and ranging) data, the analysis of full waveform has been an active area in LiDAR application.
J. Zhu, Z. Zhang, X. Hu, Z. Li
doaj   +1 more source

Classification of Laser Footprint Based on Random Forest in Mountainous Area Using GLAS Full-Waveform Features

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Full-waveform spaceborne laser altimeter can provide more characteristic parameters of the laser footprint and rich vertical structure information on the target surface.
Xiangfeng Liu   +4 more
doaj   +1 more source

Full Waveform Inversion and the Truncated Newton Method [PDF]

open access: yesSIAM Review, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Métivier, Ludovic   +3 more
openaire   +6 more sources

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