Results 31 to 40 of about 55,280 (259)
Transfer Learning Enhanced Full Waveform Inversion*
2023 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM), 2023 We propose a way to favorably employ neural networks in the field of non-destructive testing using Full Waveform Inversion (FWI). The presented methodology discretizes the unknown material distribution in the domain with a neural network within an adjoint optimization.
Stefan Kollmannsberger +2 more
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A Novel Waveform Decomposition and Spectral Extraction Method for 101-Channel Hyperspectral LiDAR
Remote Sensing, 2022 The 101-channel full-waveform hyperspectral LiDAR (FWHSL) is able to simultaneously obtain geometric and spectral information of the target, and it is widely applied in 3D point cloud terrain generation and classification, vegetation detection, automatic
Yuhao Xia +6 more
doaj +1 more source
iForest - Biogeosciences and Forestry, 2011 The goal of this review is to present leading examples of current methodologies for extracting forest characteristics from full-waveform LiDAR data. Four key questions are addressed: (i) does full-waveform LiDAR provide advantages over discrete-return ...
Pirotti F
doaj +1 more source
A full waveform current recorder for electrical prospecting [PDF]
Geoscientific Instrumentation, Methods and Data Systems, 2019 Current data are an important input data for electrical prospecting data postprocessing. The existing current recorder is inadequate for continuous recording, precision, bandwidth, dynamic range, and input range. A new full waveform current recorder that
K. Chen, S. Jin
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 In satellite laser altimetry, it is a challenging task to accurately extract peak positions from full waveforms due to the overlapped or weak peaks within the large laser footprints, which substantially affects the subsequent applications.
Zhijie Zhang +14 more
doaj +1 more source
International Journal of Applied Earth Observations and Geoinformation, 2023 Alongside widely accepted geometric information, airborne laser bathymetry (ALB) typically captures the temporal profile sample (waveforms) of both the emitted laser pulses and their echoes.
Xue Ji +7 more
doaj +1 more source
Enhancement of In-Plane Seismic Full Waveform Inversion with CPU and GPU Parallelization
Applied Sciences, 2022 Full waveform inversion is a widely used technique to estimate the subsurface parameters with the help of seismic measurements on the surface. Due to the amount of data, model size and non-linear iterative procedures, the numerical computation of Full ...
Min Bahadur Basnet +6 more
doaj +1 more source
Evolutionary full-waveform inversion [PDF]
Geophysical Journal International, 2020 SUMMARY We present a new approach to full-waveform inversion (FWI) that enables the assimilation of data sets that expand over time without the need to reinvert all data. This evolutionary inversion rests on a reinterpretation of stochastic Limited-memory Broyden–Fletcher–Goldfarb–Shanno (L-BFGS), which randomly exploits redundancies to ...
Dirk Philip van Herwaarden +3 more
openaire +3 more sources
Reflection full waveform inversion [PDF]
Science China Earth Sciences, 2017 Because of the combination of optimization algorithms and full wave equations, full-waveform inversion (FWI) has become the frontier of the study of seismic exploration and is gradually becoming one of the essential tools for obtaining the Earth interior information. However, the application of conventional FWI to pure reflection data in the absence of
Gang Yao, Di Wu
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Adding Prior Information in FWI through Relative Entropy
Entropy, 2021 Full waveform inversion is an advantageous technique for obtaining high-resolution subsurface information. In the petroleum industry, mainly in reservoir characterisation, it is common to use information from wells as previous information to decrease the
Danilo Santos Cruz +3 more
doaj +1 more source