Results 21 to 30 of about 1,136,142 (266)

Monitoring of Radial Deformations of a Gravity Dam Using Sentinel-1 Persistent Scatterer Interferometry

Remote Sensing, 2022
Dams have many important socio-economic functions, fulfilling roles ranging from storing water to power generation, but also serving as leisure areas.
Jannik Jänichen, Christiane Schmullius, Jussi Baade, Katja Last, Volker Bettzieche, Clémence Dubois   +5 more
doaj   +1 more source

Mobile LiDAR System: New Possibilities for the Documentation and Dissemination of Large Cultural Heritage Sites

Remote Sensing, 2017
Mobile LiDAR System is an emerging technology that combines multiple sensors. Active sensors, together with Inertial and Global Navigation System, are synchronized on a mobile platform to produce an accurate and precise geospatial 3D point cloud.
Pablo Rodríguez-Gonzálvez, Belén Jiménez Fernández-Palacios, Ángel Luis Muñoz-Nieto, Pedro Arias-Sanchez, Diego Gonzalez-Aguilera   +4 more
doaj   +1 more source

Assessing the Accuracy and Potential for Improvement of the National Land Cover Database’s Tree Canopy Cover Dataset in Urban Areas of the Conterminous United States

Remote Sensing, 2022
The National Land Cover Database (NLCD) provides time-series data characterizing the land surface for the United States, including land cover and tree canopy cover (NLCD-TC).
Mehdi Pourpeikari Heris, Kenneth J. Bagstad, Austin R. Troy, Jarlath P. M. O’Neil-Dunne   +3 more
doaj   +1 more source

A Framework for the Objective Assessment of Registration Accuracy [PDF]

International Journal of Biomedical Imaging, 2014
Validation and accuracy assessment are the main bottlenecks preventing the adoption of image processing algorithms in the clinical practice. In the classical approach, a posteriori analysis is performed through objective metrics. In this work, a different approach based on Petri nets is proposed.
Francesca Pizzorni Ferrarese, Flavio Simonetti, Roberto Israel Foroni, Gloria Menegaz   +3 more
openaire   +4 more sources

Quantifying Uncertainty in Land-Use/Land-Cover Classification Accuracy: A Stochastic Simulation Approach

Frontiers in Environmental Science, 2021
In numerous applications of land-use/land-cover (LULC) classification, the classification rules are determined using a set of training data; thus, the results are inherently affected by uncertainty in the selection of those data.
Ke-Sheng Cheng, Ke-Sheng Cheng, Ke-Sheng Cheng, Jia-Yi Ling, Teng-Wei Lin, Yin-Ting Liu, You-Chen Shen, Yasuyuki Kono   +7 more
doaj   +1 more source

Delineation of Tree Patches in a Mangrove-Marsh Transition Zone by Watershed Segmentation of Aerial Photographs

Remote Sensing, 2020
Mangrove migration, or transgression in response to global climatic changes or sea-level rise, is a slow process; to capture it, understanding both the present distribution of mangroves at individual patch (single- or clumped trees) scale, and their ...
Himadri Biswas, Keqi Zhang, Michael S. Ross, Daniel Gann   +3 more
doaj   +1 more source

Methodology Advances in Vertebrate Age Estimation

Animals
Age is a core metric in vertebrate management, and the correct estimation of the age of an individual plays a principal role in comprehending animal behavior, identifying genealogical information, and assessing the potential reproductive capacity of ...
Yifei Zhang, Jinping Bi, Yao Ning, Jiang Feng   +3 more
doaj   +1 more source

Comparison and Evaluation of Five Global Land Cover Products on the Tibetan Plateau

Land
The Tibetan Plateau (TP) region contains maximal alpine grassland ecology at the mid-latitudes. This region is also recognized as an ecologically fragile and sensitive area under the effects of global warming.
Yongjie Pan, Danyun Wang, Xia Li, Yong Liu, He Huang   +4 more
doaj   +1 more source

Assessing the Quality of the Leica BLK2GO Mobile Laser Scanner versus the Focus 3D S120 Static Terrestrial Laser Scanner for a Preliminary Study of Garden Digital Surveying

Heritage, 2023
Gardens play a key role in the definition of the cultural landscape since they reflect the culture, identity, and history of a people. They also contribute to the ecological balance of the city.
Graziella Del Duca, Carol Machado
doaj   +1 more source

Accuracy assessment of a three-dimensional model obtained using the LiDAR sensor of the iPhone 13 Pro Max

Geodesy and Cartography
Scanning of an educational classroom was performed using the LiDAR sensor of the iPhone 13 Pro Max. Comparison was conducted between the lengths of lines and coordinates determined from the model scanned by the LiDAR sensor with precise data measured ...
Oleksandr Yanchuk, Roman Shulgan, Serhii Trokhymets, Nazarii Sheremet   +3 more
doaj   +1 more source