Results 61 to 70 of about 44,514 (243)

Improved Target Laser Capture Technology for Hexagonal Honeycomb Scanning

Photonics, 2023
In laser tracking systems, capturing moving targets is a prerequisite to guaranteeing a tracking system’s performance. Previous studies have confirmed that the capture probability of hexagonal spiral scanning is higher than that for other scanning ...
Bing Jia, Fan Jin, Qiongying Lv, Yubing Li   +3 more
doaj   +1 more source

Comparison of forest attributes derived from two terrestrial lidar systems. [PDF]

, 2013
Terrestrial lidar (TLS) is an emerging technology for deriving forest attributes, including conventional inventory and canopy characterizations. However, little is known about the influence of scanner specifications on derived forest parameters.
Astrup, Rasmus, Coates, K David, Ducey, Mark J., Larson, Bruce C, Pretzsch, Hans, Seifart, Stefan   +5 more
core   +2 more sources

AIRBORNE LASER SCANNING AND LANDSCAPE ARCHAEOLOGY

Opuscula Archaeologica, 2018
Airborne lidar (Light Detection And Ranging), ALS or ALSM (Airborne Laser Scanning, Airborne Laser Swath Mapping) is an active remote sensing tech- nique, which records the surface of the earth using laser scanning. ALS allows very precise three-dimensional mapping of the surface of the earth, producing high-resolution topographic data, even where ...
openaire   +3 more sources

Assessment of Wooded Area Reduction by Airborne Laser Scanning [PDF]

Forests, 2015
Airborne Laser Scanning (ALS) data hold a great deal of promise in monitoring the reduction of single trees and forests with high accuracy. In the literature, the canopy height model (CHM) is the main input used frequently for forest change detection.
Thi Tran, Markus Hollaus, Ba Nguyen, Norbert Pfeifer   +3 more
openaire   +1 more source

All‐in‐One Underwater Quality Evaluation Metamaterial With Mechanical Robustness, Sound Attenuation, and Diffuse Reflection

Advanced Science, EarlyView.
In this work, a bioinspired all‐in‐one underwater quality evaluation metamaterial, combining sound attenuation, diffuse reflection, and mechanical robustness, is proposed based on jumping spider locomotion and human skeletal biomechanics. Meanwhile, a CNN‑driven quality evaluation framework is established for theoretically dimension‐reduced ...
Hongze Li, Zhenyu Li, Jinshui Yang, Jianhao Wu, Yidan Chen, Linzhi Wu, Hong Hu, Penglin Gao, Yegao Qu   +8 more
wiley   +1 more source

Prospecting of Architectural Features Using LiDAR‐UAV Technology, Deep Neural Networks and Visualization Techniques: A Case Study in Kuélap and Cambolín (NW Peru)

Archaeological Prospection, EarlyView.
ABSTRACT High‐resolution and accurate synoptic images of terrestrial topography, even in densely forested areas, have proven valuable for archaeology by enabling the identification and characterization of relief patterns associated with ancient human activities. This study presents a novel approach that integrates digital terrain models (DTMs) obtained
Jhon A. Zabaleta‐Santisteban, Rolando Salas López, Angel J. Medina‐Medina, Katerin M. Tuesta‐Trauco, Abner S. Rivera‐Fernandez, Nerci M. Noriega‐Salazar, José A. Sánchez‐Vega, Teodoro B. Silva‐Melendez, Marlen A. Grandez‐Alberca, Jhonsy O. Silva‐López, Nilton B. Rojas‐Briceño, Manuel Oliva‐Cruz, Alexander Cotrina‐Sanchez, Elgar Barboza   +13 more
wiley   +1 more source

Extraction of tidal channel networks from airborne scanning laser altimetry and aerial photography [PDF]

, 2003
The study of the morphodynamics of tidal channel networks is important because of their role in tidal propagation and the evolution of salt-marshes and tidal flats. Channel dimensions range from tens of metres wide and metres deep near the low water mark
Lohani, B., Mason, David Cecil, Wang, H-J.   +2 more
core   +1 more source

“Hidden” Landscape of Prehistoric Burial Monuments: The Use of Remote Sensing in the Detection of Neolithic Long Barrows in Bohemia (Czech Republic)

Archaeological Prospection, EarlyView.
ABSTRACT Neolithic long barrows are among the earliest monumental structures in Europe, yet in many parts of Central Europe their surface expression has been largely erased by long‐term agricultural activity. This study evaluates the potential of integrated remote sensing approaches for identifying and contextualizing long barrows and associated ...
Petr Krištuf, Tomáš Kroupa, Peter Milo, Jan Havelka, Jan Turek, Martin Gojda   +5 more
wiley   +1 more source

Extracting More Data from LiDAR in Forested Areas by Analyzing Waveform Shape [PDF]

, 2012
Light Detection And Ranging (LiDAR) in forested areas is used for constructing Digital Terrain Models (DTMs), estimating biomass carbon and timber volume and estimating foliage distribution as an indicator of tree growth and health. All of these purposes
Adams, Thomas, Beets, Peter, Parrish, Christopher   +2 more
core   +3 more sources

Railway line identification using airborne laser scanning

Acta Scientiarum Polonorum Formatio Circumiectus, 2015
The investigations was to recognize the elements of the railway line on the airborne point clouds and using this type of studies in Engineering Geodesy. The object was elaborate on the part of the railway line in the Bochnia City. Such works contains an overview of LiDAR technology and an airborne laser scanning, the identification of the elements of ...
Izabela Piecha, Bartłomiej Pysz
openaire   +1 more source