Results 171 to 180 of about 21,436 (210)

Investigating the capability of the structure-from-motion photogrammetry on monitoring the ice surface sublimation. [PDF]

iScience
Liu J, Ma S, Chen R, Li Y, Wang X, Han C.   +5 more
europepmc   +1 more source

Methodologies for Remote Bridge Inspection-Review. [PDF]

Sensors (Basel)
Ribeiro D, Rakoczy AM, Cabral R, Hoskere V, Narazaki Y, Santos R, Tondo G, Gonzalez L, Matos JC, Massao Futai M, Guo Y, Trias A, Tinoco J, Samec V, Minh TQ, Moreu F, Popescu C, Mirzazade A, Jorge T, Magalhães J, Schmidt F, Ventura J, Fonseca J.   +22 more
europepmc   +1 more source

Remote Sensing Inversion of Full-Profile Topography Data for Coastal Wetlands Using Synergistic Multi-Platform Sensors from Space, Air, and Ground. [PDF]

Sensors (Basel)
Zhang J, Wang J, Dai Y, Miao Y, Li H.
europepmc   +1 more source

Use of UAV-Photogrammetry for Quasi-Vertical Wall Surveying [PDF]

Remote Sensing, 2020
In this study, an analysis of the capabilities of unmanned aerial vehicle (UAV) photogrammetry to obtain point clouds from areas with a near-vertical inclination was carried out. For this purpose, 18 different combinations were proposed, varying the number of ground control points (GCPs), the adequacy (or not) of the distribution of GCPs, and the ...
Patricio Jesús Martínez Carricondo, Francisco Agüera Vega, Fernando Carvajal   +2 more
exaly   +5 more sources

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The Influence of Redundant Images in Uav Photogrammetry Application

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
Today, UAV (Unmade Aerial Vehicle) platforms are increasingly being used to acquire low cost high resolution digital images to extract geoinformation datasets by Photogrammetry and Remote Sensing approaches. This paper shows a study that was performed to verify the influence of redundant images in the extraction of 3D point cloud using a UAV image ...
Edson Aparecido Mitishita, Niarkios Luiz Santos de Salles Graca   +1 more
openaire   +1 more source

Brazilian Savanna Height Estimation Using UAV Photogrammetry

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
Unmanned aerial vehicles (UAVs) have been advancing in precision and cost-benefit for remote sensing studies, including height and biomass estimations. This article presents a preliminary experiment to explore UAV photogrammetry to estimate canopy height in savanna and grassland phytophysiognomies in the Brazilian Cerrado biome.
Andeise Cerqueira Dutra, Fábio Marcelo Breunig, Henrique Luis Godinho Cassol, Marceli Terra de Oliveira, Tânia Beatriz Hoffmann, Egidio Arai, Valdete Duarte, Yosio Edemir Shimabukuro   +7 more
openaire   +1 more source

UAV photogrammetry for archaeological survey: The Theaters area of Pompeii

2013 Digital Heritage International Congress (DigitalHeritage), 2013
Aerial surveying is, in the domain of archeology and architecture, an exponential field of application and interest. Beyond the increasing flying capabilities and skills of existing UAV, the operational potentiality of the aircraft oversteps the imagination of their own creators.
Saleri, Renato, Cappellini, Valeria, Nony, Nicolas, De Luca, Livio, Pierrot-Deseilligny, Marc, Bardiere, Emmanuel, Campi, Massimiliano   +6 more
openaire   +3 more sources

Dominant Trees Analysis Using UAV LiDAR and Photogrammetry

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
Dominant trees compose the upper story of forest canopies, and are one of the key factors that affect the light redistribution for forest ecosystem. UAV lidar and photogrammetry can be used to measure spatial variation of upper crowns of dominant trees with details.
Qingwang Liu, Shiming Li, Xin Tian 0005, Liyong Fu   +3 more
openaire   +1 more source

An approach of system calibration for UAV photogrammetry

SPIE Proceedings, 2011
As a kind of photogrammetric platform unmanned aerial vehicles (UAVs) usually employ amateur digital cameras, the photogrammetric data availability depend on the integrated sensors calibration result and the flight performance, which are great limitations to the UAV systems used in aerial photogrammetry. In this work, a specific workflow for the UAV
Ping Liu, Xi Chen, Liao Yang
openaire   +1 more source