Results 21 to 30 of about 10,319 (255)

A signal denoising method for full-waveform LiDAR data [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
The lack of noise reduction methods resistant to waveform distortion can hamper correct and accurate decomposition in the processing of full-waveform LiDAR data.
M. Azadbakht   +6 more
doaj   +1 more source

LAI estimation based on physical model combining airborne LiDAR waveform and Sentinel-2 imagery

open access: yesFrontiers in Plant Science, 2023
Leaf area index (LAI) is an important biophysical parameter of vegetation and serves as a significant indicator for assessing forest ecosystems. Multi-source remote sensing data enables large-scale and dynamic surface observations, providing effective ...
Zixi Shi   +12 more
doaj   +1 more source

Point Cloud Classification and Accuracy Analysis Based on Feature Fusion [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2021
A method for land-cover classification was proposed based on the fusion of features generated from waveform data and point cloud respectively. It aims to partially overcome the ineffectiveness of many traditional classifiers caused by the fact that point
Xiaochen WANG,Hongchao MA,Liang ZHANG,Zhan CAI,Haichi MA
doaj   +1 more source

Low complexity decomposition for the characteristic waveform of speech signal [PDF]

open access: yesSympoTIC '04. Joint 1st Workshop on Mobile Future & Symposium on Trends In Communications (IEEE Cat. No.04EX877), 2005
For efficient coding of speech, it is desirable to separate the slowly and rapidly evolving spectral components to take advantage of their different perceptual qualities. Existing decomposition methods are too inflexible to model transient changes in the speech signals, require high delay or produce a large parameter set that is not scalable to low ...
Guiping Wang, Changchun Bao
openaire   +1 more source

Tree height inversion combining light detection and ranging and optical remote sensing data [PDF]

open access: yesE3S Web of Conferences, 2020
Tree barriers in transmission line corridors are an important safety hazard.Scientific prediction of tree height and monitoring tree height changes are essential to solve this hidden danger.
Wang Kunlin, Ma Yi, Zhou Fangrong
doaj   +1 more source

Continuous Wavelet Vocoder-Based Decomposition of Parametric Speech Waveform Synthesis [PDF]

open access: yesInterspeech 2021, 2021
To date, various speech technology systems have adopted the vocoder approach, a method for synthesizing speech waveform that shows a major role in the performance of statistical parametric speech synthesis. WaveNet one of the best models that nearly resembles the human voice, has to generate a waveform in a time consuming sequential manner with an ...
Mohammed Salah Al-Radhi   +3 more
openaire   +3 more sources

Deep learning assisted exponential waveform decomposition for bathymetric LiDAR [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The processing of bathymetric LiDAR waveforms is an important task, as it provides range and radiometric information to determine the precise location of water surface and bottom, and other characteristics like amplitude.
N. Li   +4 more
doaj   +1 more source

waveformlidar: An R Package for Waveform LiDAR Processing and Analysis

open access: yesRemote Sensing, 2019
A wealth of Full Waveform (FW) LiDAR (Light Detection and Ranging) data are available to the public from different sources, which is poised to boost extensive applications of FW LiDAR data.
Tan Zhou, Sorin Popescu
doaj   +1 more source

Full-waveform Small-footprint LiDAR Multi-target Echo Waveform Lightweight Detection by Spatio-temporal Coupling Models

open access: yesLeida xuebao
Small-footprint full-waveform Light Detection And Ranging (LiDAR) exhibits significant application potential owing to its high penetration capability and ability to capture complete echo data.
Zhen XIAO   +3 more
doaj   +1 more source

VOXEL BASED REPRESENTATION OF FULL-WAVEFORM AIRBORNE LASER SCANNER DATA FOR FORESTRY APPLICATIONS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The advantages of using airborne full-waveform laser scanner data in forest applications, e.g. for the description of the vertical vegetation structure or accurate biomass estimation, have been emphasized in many publications.
N. Stelling, K. Richter
doaj   +1 more source

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