Results 71 to 80 of about 501,352 (163)

Computer Vision–Based Orthorectification and Georeferencing of Aerial Image Sets [PDF]

, 2016
Generating a georeferenced mosaic map from unmanned aerial vehicle (UAV)imagery is a challenging task. Direct and indirect georeferencing methods may fail to generate an accurate mosaic map due to the erroneous exterior orientation parameters stored in ...
Faraji, Mohammadreza, Qi, Xiaojun, Jensen, Austin   +2 more
core   +1 more source

Surface grain-size mapping of braided channels from SfM photogrammetry [PDF]

Earth Surface Dynamics
Braided channels are known as fluvial systems with a high heterogeneity of physical conditions, resulting from particularly active interacting processes of coarse sediment sorting and transport.
L. Ribet, F. Liébault, L. Borgniet, M. Deschâtres, G. Melun   +4 more
doaj   +1 more source

DIRECT AND INDIRECT GEOREFERENCING WITH A LIGHT-WEIGHT UAV AND AN RTK UAV

International Symposium on Applied Geoinformatics 2021, 2022
Wafa M.A. Thiab, Dursun Zafer Seker
openaire   +1 more source

Soil Diversity and Climate: An Overview of Profile Data and Acquisition With the WoSIS Global Legacy Dataset

European Journal of Soil Science, Volume 77, Issue 4, July/August 2026.
ABSTRACT Soil profiles are the primary field evidence from which pedogenesis, soil classification and land‐use effects are interpreted, yet their availability remains uneven across climates and land‐cover contexts. Here, we analyse the World Soil Information Service (WoSIS) 2023 snapshot together with Copernicus Global Land Cover 2015 and the global ...
Calogero Schillaci, Grace B. Alves, Mohamed Bayad, Boglarka Bozoki, Giulia Bondi, Christopher R. Burn, Timo Breure, Giacomo Certini, Songchao Chen, Michele E. D'Amico, Mauro De Feudis, Axel Cerón González, Jaqueline Hannam, Danny Itkin, Arwyn Jones, Michael Maerker, Stephan Mantel, Erika Michéli, Luca Montanarella, Panos Panagos, Thilo Rennert, Sergio Saia, Riccardo Scalenghe, Simone Scarpa, Fabio Terribile, William Trenti, Diana Vieira, Simona Vingiani, Felipe Yunta, Yushu Xia, Ioannis Zafeiriou, Pandi Zdruli, Claudio Zucca, Daniel L. Evans   +33 more
wiley   +1 more source

Factors influencing the identification of it indirect costs: A case study [PDF]

, 2008
Organizations expenditure on Information technology (IT) related investments continue to rise in the face of the fierce competition in the various marketplaces.
Ghoneim, A
core   +2 more sources

Scalable Urban Forest Monitoring: High‐Precision Individual Tree Inventory Using Low‐Cost Oblique UAV Photogrammetry

The Photogrammetric Record, Volume 41, Issue 195, July‐September 2026.
A low‐cost single‐RGB UAV workflow integrating nadir and oblique imagery, SfM–MVS, DBSCAN, and RANSAC‐enabled stem‐seeded segmentation achieved accurate individual‐tree inventory in a semi‐dense urban forest, detecting 108/120 trees and estimating height, DBH, and crown area with strong agreement to field measurements.
Yunus Kaya, Abdurahman Yasin Yiğit, Neslihan Ataş   +2 more
wiley   +1 more source

Stepping Up or Stepping Out? Sustainable Livelihood Resilience, Heterogeneous Strategies and Poverty Alleviation Among Retired Fishermen in the Yangtze River Basin

Aquaculture, Fish and Fisheries, Volume 6, Issue 3, June 2026.
ABSTRACT The ‘Ten‐Year Fishing Ban’ policy in the Yangtze River Basin has compelled over 230,000 fishermen to cease fishing and transition to alternative livelihoods, making their post‐ban livelihood development critical to the policy's long‐term effectiveness. Drawing on household survey data from Hubei and Hunan provinces—which account for nearly 40%
Xueming Wang, Qijun Jiang, Tao Shen, Jianming Zheng   +3 more
wiley   +1 more source

Unit 29 - Discrete Georeferencing [PDF]

, 1990
This unit concludes the module on coordinate systems and geocoding. Several important practical issues are raised here that will be important particularly for those who will be working with economic and demographic databases.
National Center for Geographic Information and Analysis, Unit 29, CC in GIS   +1 more
core   +1 more source

Georeferencing multi-scale imagery in photogrammetry

, 2007
Georeferencing is crucial to make imagery useful for extracting geospatial information. This thesis presents an economic and feasible approach to georeference multi-scale imagery to the common coordinate system, which is called local coordinate system ...
Zhu, Lingli
core   +1 more source

Comparative Assessment of the Effect of Positioning Techniques and Ground Control Point Distribution Models on the Accuracy of UAV-Based Photogrammetric Production

Drones
Unmanned aerial vehicle (UAV) systems have recently become essential for mapping, surveying, and three-dimensional (3D) modeling applications. These systems are capable of providing highly accurate products through integrated advanced technologies ...
Muhammed Enes Atik, Mehmet Arkali
doaj   +1 more source