Results 11 to 20 of about 4,977 (68)

A Deep Learning-Based Solution for Large-Scale Extraction of the Secondary Road Network from High-Resolution Aerial Orthoimagery

open access: yesApplied Sciences, 2020
Secondary roads represent the largest part of the road network. However, due to the absence of clearly defined edges, presence of occlusions, and differences in widths, monitoring and mapping them represents a great effort for public administration.
Calimanut-Ionut Cira   +3 more
doaj   +1 more source

Testing and Application of Geospatial Techniques in Seismic Engineering

open access: yesProceedings, 2019
Identification and classification of the different structures and infrastructures that make up a city (conventional buildings, power stations, nuclear power stations, routes of communication, etc.) are of great importance at the time of characterize ...
Rocío Romero-Jarén   +2 more
doaj   +1 more source

Approach for combining fault and area sources in seismic hazard assessment: application in south-eastern Spain [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2018
This paper presents a methodological approach to seismic hazard assessment based on a hybrid source model composed of faults as independent entities and zones containing residual seismicity.
A. Rivas-Medina   +3 more
doaj   +1 more source

ANALYSIS OF THE SHORELINE POSITION EXTRACTED FROM LANDSAT TM AND ETM+ IMAGERY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
A statistical analysis of the results obtained by the tool SELI (Shoreline Extraction from Landsat Imagery) is made in order to characterise the medium and long term period changes occurring on beaches.
E. Sánchez-García   +3 more
doaj   +1 more source

BERT (Bidirectional Encoder Representations from Transformers) for Missing Data Imputation in Solar Irradiance Time Series

open access: yesEngineering Proceedings, 2023
The availability of solar irradiance time series without missing data is an ideal scenario for researchers in the field. However, it is not achievable for a variety of reasons, such as measurement errors, sampling gaps, or other factors.
Llinet Benavides Cesar   +2 more
doaj   +1 more source

Analysis of GNSS Time Series Recorded on South Shetland Island and Antarctic Peninsula during the Geodynamic Activity in 2020 of the Orca Underwater Volcano (Brandfield Sea Rift, Antarctica)

open access: yesEngineering Proceedings, 2023
The region defined by the South Shetland Islands, Bransfield Sea, and Antarctic Peninsula has complex geodynamic activity resulting from the active subduction process of the Phoenix Plate under the Antarctic Plate.
Belén Rosado   +9 more
doaj   +1 more source

Insights into the Effects of Tile Size and Tile Overlap Levels on Semantic Segmentation Models Trained for Road Surface Area Extraction from Aerial Orthophotography

open access: yesRemote Sensing
Studies addressing the supervised extraction of geospatial elements from aerial imagery with semantic segmentation operations (including road surface areas) commonly feature tile sizes varying from 256 × 256 pixels to 1024 × 1024 pixels with no overlap ...
Calimanut-Ionut Cira   +4 more
doaj   +1 more source

The New Methods for Rapid Exposure and Seismic Vulnerability Assessment. How Do They Adapt to Different Scenarios?

open access: yesProceedings, 2019
We present a procedure for exposure and vulnerability evaluation that integrates LiDAR, orthophotos, and other ancillary datasets. It comprises three phases: (1) city stratification into homogeneous regions; (2) exposure database compilation; and (3 ...
Yolanda Torres   +6 more
doaj   +1 more source

Elementos histórico-administrativos para el establecimiento de demarcaciones inframunicipales: aplicación al término de Jerez de la Frontera

open access: yesBoletín de la Asociación de Geógrafos Españoles, 2021
El objetivo principal de este estudio es la elaboración de una propuesta técnica para el establecimiento de entidades territoriales submunicipales de todo el término jerezano, resolviendo así la problemática territorial del Jerez rural, con la ...
Jesús Ventura Fernández   +1 more
doaj   +3 more sources

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