Results 101 to 110 of about 54,994 (234)

MEASUREMENT ACCURACY ON 3D POINT CLOUD GENERATED USING MULTISPECTRAL IMAGERY BY DIFFERENT CALIBRATION METHODS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
The state-of-the-art lightweight multispectral cameras are widely used for low altitude remote sensing, also can be exploited as a tool for close-range photogrammetry application.
K. Zainuddin, K. Zainuddin, Z. Majid, M. F. M. Ariff, K. M. Idris   +4 more
doaj   +1 more source

Integrative IRT for documentation and interpretation of archaeological structures [PDF]

, 2019
The documentation of built heritage involves tangible and intangible features. Several morphological and metric aspects of architectural structures are acquired throughout a massive data capture system, such as the Terrestrial Laser Scanner (TLS) and the
Cimadomo, Paolo, Griffo, Marika, Menconero, Sofia   +2 more
core   +1 more source

Stress and Rock Failure Near Salt Bodies: Insights From Field Observations, Kinematic Modeling, and Mechanical Analysis Near Arches National Park, Paradox Basin, Utah

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract Salt's inherent weakness and capacity for ductile deformation create significant mechanical contrasts that locally perturb the stress field in surrounding rocks, often leading to deviations from regional tectonic stresses. Variations in local stress are a critical factor for wellbore stability, seal integrity, and fluid flow in subsurface ...
Lauren J. Reeher, Seth Busetti, Amanda N. Hughes, George H. Davis   +3 more
wiley   +1 more source

Validation of Geodetic Seafloor Benchmark Stability Using Structure‐From‐Motion and Seafloor Pressure Data

Earth and Space Science, 2019
One commonly used method to measure and detect centimeter‐scale changes on land is structure‐from‐motion (SfM) photogrammetry, wherein sets of digital images are used to generate three‐dimensional spatial models.
Matthew J. Cook, John B. DeSanto
doaj   +1 more source

Merging Unmanned Aerial Systems (UAS) Imagery and Echo Soundings with an Adaptive Sampling Technique for Bathymetric Surveys

Remote Sensing, 2018
Bathymetric surveying to gather information about depths and underwater terrain is increasingly important to the sciences of hydrology and geomorphology.
Laura V. Alvarez, Hernan A. Moreno, Antonio R. Segales, Tri G. Pham, Elizabeth A. Pillar-Little, Phillip B. Chilson   +5 more
doaj   +1 more source

Comparison of drone and ground surveys for the detection of a rare plant in a fragile ecosystem

Ecological Solutions and Evidence, Volume 7, Issue 1, January–March 2026.
We compared the accuracy, time, and financial costs of drone and ground surveys for the detection of wood lilies (Lilium philadelphicum) in an endangered alvar ecosystem. We found that the drone surveys detected 73%–78% of the plants found in the ground surveys, but that this type of survey was more expensive and time consuming than the ground survey ...
Ana Hernández Martínez de la Riva, Koreen Millard, Murray Richardson, Joseph Bennett   +3 more
wiley   +1 more source

3-D uncertainty-based topographic change detection with structure-from-motion photogrammetry: precision maps for ground control and directly georeferenced surveys [PDF]

, 2017
Structure-from-motion (SfM) photogrammetry is revolutionising the collection of detailed topographic data, but insight into geomorphological processes is currently restricted by our limited understanding of SfM survey uncertainties.
James, MR, Robson, S, Smith, MW
core   +2 more sources

Digital Spatial Technologies to Compose the Map of the Southeast Iberia Megalithic Phenomenon. The Case Study of Fonelas (Granada, Spain)

Archaeological Prospection, Volume 33, Issue 1, Page 257-273, January/March 2026.
ABSTRACT Megalithic landscapes in Southeast Iberia remain unevenly and insufficiently documented, particularly in rugged areas where traditional survey methods are limited. This paper addresses this gap by applying a multiscalar approach to the megalithic necropolises of the Fardes River (Granada, Spain), with the objective of detecting, documenting ...
Carolina Cabrero González, Juan Antonio Cámara Serrano, José Antonio Bueno Herrera, Jesús Gámiz Caro   +3 more
wiley   +1 more source

Holocene Glacial–Paraglacial–Periglacial Transitions of a Sub‐Arctic Glacial Cirque, Fremri‐Grasárdalur, Northern Iceland

Permafrost and Periglacial Processes, Volume 37, Issue 1, Page 78-106, January/March 2026.
ABSTRACT The aim of this work is to study a variety of glacial, periglacial and paraglacial features found in a small cirque, Fremri‐Grasárdalur, in Tröllaskagi (Northern Iceland). We implement a multidisciplinary approach combining high‐resolution geomorphological mapping, horizontal/vertical boulder displacement (from 1994 to 2019) and surface ...
Javier Santos‐González, David Palacios, Rosa B. González‐Gutiérrez, José M. Fernández‐Fernández, Irene Schimmelpfennig, Sergio Peña‐Pérez, Luis M. Tanarro, Nuria Andrés, Adrián Melón‐Nava, Wesley R. Farnsworth, Skafti Brynjólfsson, Þorsteinn Sæmundsson, Georges Aumaitre, Karim Keddadouche   +13 more
wiley   +1 more source

Implementation and assessment of two density-based outlier detection methods over large spatial point clouds [PDF]

, 2018
Several technologies provide datasets consisting of a large number of spatial points, commonly referred to as point-clouds. These point datasets provide spatial information regarding the phenomenon that is to be investigated, adding value through ...
Fissore, Francesca, Masiero, Andrea, Pirotti, Francesco, Ravanelli, Roberta   +3 more
core   +4 more sources