Results 31 to 40 of about 3,230,746 (196)
Estimation of 3D vegetation structure from waveform and discrete return airborne laser scanning data [PDF]
, 2012 This study presents and compares new methods to describe the 3D canopy structure with Airborne Laser Scanning (ALS) waveform data as well as ALS point data.
Olofsson, Kenneth, +12 more
core +1 more source
DECOMPOSITION TECHNIQUES FOR ICESAT/GLAS FULL-WAVEFORM DATA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 The geoscience laser altimeter system (GLAS) on the board Ice, Cloud, and land Elevation Satellite (ICESat), is the first long-duration space borne full-waveform LiDAR for measuring the topography of the ice shelf and temporal variation, cloud and ...
Z. Liu, X. Gao, G. Li, J. Chen
doaj +1 more source
Design and evaluation of multispectral LiDAR for the recovery of arboreal parameters [PDF]
, 2014 Multispectral light detection and ranging (LiDAR) has the potential to recover structural and physiological data from arboreal samples and, by extension, from forest canopies when deployed on aerial or space platforms.
Nichol, Caroline +12 more
core +1 more source
Remote Sensing, 2015 Forest canopy leaf area index (LAI) is a critical variable for the modeling of climates and ecosystems over both regional and global scales. This paper proposes a physically based method to retrieve LAI and foliage area volume density (FAVD) profile ...
Han Ma, Jinling Song, Jindi Wang
doaj +1 more source
Preliminary leaf area index estimates from airborne small footprint full-waveform LiDAR data
, 2013 This study has compared preliminary estimates of effective leaf area index (LAI) derived from fish-eye lens photographs to those estimated from airborne full-waveform small-footprint LiDAR data for a forest dataset in Australia.
Tanase, Mihai A. +6 more
core +9 more sources
Extending AMCW lidar depth-of-field using a coded aperture [PDF]
, 2011 By augmenting a high resolution full-field Amplitude Modulated Continuous Wave lidar system with a coded aperture, we show that depth-of-field can be extended using explicit, albeit blurred, range data to determine PSF scale. Because complex domain range-
Michael J. Cree +5 more
core +1 more source
Understanding and Ameliorating Non-Linear Phase and Amplitude Responses in AMCW Lidar [PDF]
, 2011 Amplitude modulated continuous wave (AMCW) lidar systems commonly suffer from non-linear phase and amplitude responses due to a number of known factors such as aliasing and multipath inteference. In order to produce useful range and intensity information
Michael J. Cree +5 more
core +1 more source
Simulating full-waveform LIDAR [PDF]
, 2009 LIDAR (LIght Detection And Ranging) is used to remotely measure the threedimensional shapes and arrangements of objects with high efficiency and accuracy by making precise measurements of time-of-flight of pulses of light.
Kim, Angela M.
core +2 more sources
ISPRS International Journal of Geo-Information, 2022 The Full Waveform LiDAR system has been developed and used commercially all over the world. It acts to record the complete time of a laser pulse and has a high-resolution sampling interval compared to the traditional multiple-echo LiDAR, which only ...
Chun-Ta Wei +3 more
doaj +1 more source
IMPROVEMENTS IN LIDAR BATHYMETRY DATA ANALYSIS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 Airborne Lidar Bathymetry is a laser scanning technique to measure waterbody bottom topography in shallow waterbodies with limited turbidity. The topic has recently gained relevance due to the advent of new sensor technologies allowing for much higher ...
H.-G. Maas +3 more
doaj +1 more source