Results 11 to 20 of about 6,314 (245)

Mapping of impervious surfaces with the use of remote sensing imagery: Support Vector Machines classification and GIS-based approach [PDF]

open access: yesArchives of Civil Engineering, 2023
This study focuses on the problem of mapping impervious surfaces in urban areas and aims to use remote sensing data and orthophotos to accurately classify and map these surfaces.
Janusz Sobieraj   +2 more
doaj   +1 more source

Automatically Monitoring Impervious Surfaces Using Spectral Generalization and Time Series Landsat Imagery from 1985 to 2020 in the Yangtze River Delta

open access: yesJournal of Remote Sensing, 2021
Accurately monitoring the spatiotemporal dynamics of impervious surfaces is very important for understanding the process of urbanization. However, the complicated makeup and spectral heterogeneity of impervious surfaces create difficulties for impervious
Xiao Zhang   +4 more
doaj   +1 more source

An Impervious Surface Spectral Index on Multispectral Imagery Using Visible and Near-Infrared Bands

open access: yesRemote Sensing, 2022
The accurate mapping of urban impervious surfaces from remote sensing images is crucial for understanding urban land-cover change and addressing impervious-surface-change-related environment issues. To date, the authors of most studies have built indices
Shanshan Su   +5 more
doaj   +1 more source

Impervious surface mapping with Quickbird imagery [PDF]

open access: yesInternational Journal of Remote Sensing, 2011
This research selects two study areas with different urban developments, sizes, and spatial patterns to explore the suitable methods for mapping impervious surface distribution using Quickbird imagery. The selected methods include per-pixel based supervised classification, segmentation-based classification, and a hybrid method.
Dengsheng, Lu   +2 more
openaire   +2 more sources

A Novel Impervious Surface Extraction Method Based on Automatically Generating Training Samples From Multisource Remote Sensing Products: A Case Study of Wuhan City, China

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Impervious surfaces caused by rapid urbanization affect the environment and increase the disaster risk. Currently, most articles have extracted impervious surfaces by manual participation for training samples with medium-and-high spatial resolution ...
Yingbing Liu   +6 more
doaj   +1 more source

An Object-Oriented Deep Multi-Sphere Support Vector Data Description Method for Impervious Surfaces Extraction Based on Multi-Sourced Data

open access: yesISPRS International Journal of Geo-Information, 2023
The effective extraction of impervious surfaces is critical to monitor their expansion and ensure the sustainable development of cities. Open geographic data can provide a large number of training samples for machine learning methods based on remote ...
Yiliang Wan   +4 more
doaj   +1 more source

Improving LSMA for impervious surface estimation in an urban area

open access: yesEuropean Journal of Remote Sensing, 2022
Linear spectral mixture analysis (LSMA) and regression analysis are the two most conventionally used methods to estimate impervious surfaces at the subpixel scale in an urban area.
Jin Wang   +4 more
doaj   +1 more source

A Hybrid Approach for Extracting Large-Scale and Accurate Built-Up Areas Using SAR and Multispectral Data

open access: yesAtmosphere, 2023
This article examines the use of multisensor data fusion for land classification in three Moroccan cities. The method employs a Random Forest classification algorithm based on multispectral, synthetic aperture radar (SAR), and derived land surface ...
Rida Azmi   +4 more
doaj   +1 more source

URBAN IMPERVIOUS SURFACE EXTRACTION BASED ON REMOTE SENSING IMAGES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Urban planning and constructions affect spatial patterns of urban impervious surfaces, which in turn modify the urban environment and affect human-environment interactions. Impervious surfaces can redistribute precipitation patterns, and the perviousness–
X. Y. Long, Z. F. Shao, X. X. Feng
doaj   +1 more source

Exploring the Use of Orthophotos in Google Earth Engine for Very High-Resolution Mapping of Impervious Surfaces: A Data Fusion Approach in Wuppertal, Germany

open access: yesRemote Sensing, 2023
Germany aims to reduce soil sealing to under 30 hectares per day by 2030 to address negative environmental impacts from the expansion of impervious surfaces. As cities adapt to climate change, spatially explicit very high-resolution information about the
Jan-Philipp Langenkamp, Andreas Rienow
doaj   +1 more source

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