Results 11 to 20 of about 250,722 (217)

LIDAR WAVEFORM SIMULATION OVER COMPLEX TARGETS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Unlike discrete-return LIDAR system that measures the return times of some echoes, waveform LIDAR provides the full-waveform data by digitising multi-echoes. From the waveform data we can extract more information about the geometry and reflectance of the
S. Kim, I. Lee, M. Lee
doaj   +2 more sources

Evaluation of Single Photon and Waveform LiDAR

open access: yesArchives of Photogrammetry, Cartography and Remote Sensing, 2019
Abstract In this short paper, the principles of single photon sensitive LiDAR are presented and compared against state-of-the-art full waveform, linear-mode LiDAR. The differences are explained in theory, and data of either technology are evaluated based on the City of Vienna dataset, captured in 2018 with the SPL100 (Leica) and VQ-1560i
Mandlburger, Gottfried
core   +6 more sources

Simulations of Leaf BSDF Effects on Lidar Waveforms [PDF]

open access: yesRemote Sensing, 2020
Establishing linkages between light detection and ranging (lidar) data, produced from interrogating forest canopies, to the highly complex forest structures, composition, and traits that such forests contain, remains an extremely difficult problem. Radiative transfer models have been developed to help solve this problem and test new sensor platforms in
Benjamin D. Roth   +5 more
openaire   +3 more sources

EXPLORING THE POTENTIAL OF FULL WAVEFORM AIRBORNE LIDAR FEATURES AND ITS FUSION WITH RGB IMAGE IN CLASSIFICATION OF A SPARSELY FORESTED AREA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Precise measurements of forest trees is very important in environmental protection. Measuring trees parameters by use of ground- based inventories is time and cost consuming.
M. Babadi   +3 more
doaj   +1 more source

A Marked Point Process for Modeling Lidar Waveforms [PDF]

open access: yesIEEE Transactions on Image Processing, 2010
Lidar waveforms are 1-D signals representing a train of echoes caused by reflections at different targets. Modeling these echoes with the appropriate parametric function is useful to retrieve information about the physical characteristics of the targets.
Clément Mallet   +5 more
openaire   +3 more sources

BUILDING EDGE DETECTION USING SMALL-FOOTPRINT AIRBORNE FULL-WAVEFORM LIDAR DATA [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
The full-waveform lidar technology allows a complete access to the information related to the emitted and backscattered laser signals. Although most of the common applications of full-waveform lidar are currently dedicated to the study of forested areas,
J.-C. Michelin, C. Mallet, N. David
doaj   +1 more source

RELATION NETWORK FOR FULL-WAVEFORMS LIDAR CLASSIFICATION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Abstract. LiDAR data are widely used in various domains related to geosciences (flow, erosion, rock deformations, etc.), computer graphics (3D reconstruction) or earth observation (detection of trees, roads, buildings, etc.). Because of the unstructured nature of remaining 3D points and because of the cost of acquisition, the LiDAR data processing is ...
Guiotte, Florent   +4 more
openaire   +4 more sources

A Method for Quantifying Understory Leaf Area Index in a Temperate Forest through Combining Small Footprint Full-Waveform and Point Cloud LiDAR Data

open access: yesRemote Sensing, 2021
Understory vegetation plays an important role in the structure and function of forest ecosystems. Light detection and ranging (LiDAR) can provide understory information in the form of either point cloud or full-waveform data.
Jinling Song   +5 more
doaj   +1 more source

Airborne small-footprint full-waveform LiDAR data for urban land cover classification

open access: yesFrontiers in Environmental Science, 2022
Airborne small-footprint full-waveform LiDAR data have a unique ability to characterize the landscape because it contains rich horizontal and vertical information. However, a few studies have fully explored its role in distinguishing different objects in
Haiming Qin   +4 more
doaj   +1 more source

Lidar-aided analysis of boreal forest backscatter at Ku band

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2020
This paper analyzes the backscatter of the microwave signal in a boreal forest environment based on a Ku -band airborne Frequency-Modulated Continuous Waveform (FMCW) profiling radar—Tomoradar.
Yuwei Chen   +6 more
doaj   +1 more source

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