Results 61 to 70 of about 68,744 (188)

Impact of the Scale on Several Metrics Used in Geographical Object-Based Image Analysis: Does GEOBIA Mitigate the Modifiable Areal Unit Problem (MAUP)? [PDF]

open access: yesISPRS International Journal of Geo-Information, 2019
Using two GEOBIA (Geographical Object Based Image Analysis) algorithms on a set of segmented images compared to grid partitioning at different scales, we show that statistical metrics related to both objects and sets of pixels are (more or less) subject to the Modifiable Areal Unit Problem. Subsequently, even in a same spatial partition, there may be a
Josselin, Didier, Louvet, Romain
openaire   +3 more sources

Benchmarking the Applicability of Ontology in Geographic Object-Based Image Analysis

open access: yesISPRS International Journal of Geo-Information, 2017
In Geographic Object-based Image Analysis (GEOBIA), identification of image objects is normally achieved using rule-based classification techniques supported by appropriate domain knowledge.
Sachit Rajbhandari   +4 more
doaj   +1 more source

Deep learning for land use and land cover classification from the Ecuadorian Paramo.

open access: yesInternational Journal of Digital Earth, 2022
The paramo, plays an important role in our ecosystems as They balance the water resources and can retain substantial quantities of carbon. This research was carried out in the province of Tungurahua, specifically the Quero district. The aim is to develop
Marco Castelo-Cabay   +2 more
doaj   +1 more source

Combining multiple resolutions into hierarchical representations for kernel-based image classification [PDF]

open access: yes, 2016
Geographic object-based image analysis (GEOBIA) framework has gained increasing interest recently. Following this popular paradigm, we propose a novel multiscale classification approach operating on a hierarchical image representation built from two ...
Chapel, Laetitia   +3 more
core   +3 more sources

Object-based assessment of tree attributes of Acacia tortilis in Bou-Hedma, Tunisia [PDF]

open access: yes, 2010
Acacia tortilis subsp. raddiana represents the most important woody species in the pre-Saharan zone. It is the only forest tree persisting on the edge of the desert.
De Smet, Koen   +7 more
core  

Trait‐Based Community Assembly in Early Tropical Forest Succession

open access: yesJournal of Vegetation Science, Volume 36, Issue 6, November/December 2025.
We found that in early tropical forest succession, dispersal (landscape forest cover), management (previous land use extent and duration), and environmental filters (understory light availability) collectively shaped community assembly, each playing distinct roles.
Tomonari Matsuo   +5 more
wiley   +1 more source

Uncertainties in land use data [PDF]

open access: yes, 2006
This paper deals with the description and assessment of uncertainties in land use data derived from Remote Sensing observations, in the context of hydrological studies.
G. Castilla, G. J. Hay
core   +3 more sources

A Novel Invertebrate Predator on an Oceanic Island: Impacts and Invasion Dynamics of Kontikia andersoni on Macquarie Island

open access: yesEcology and Evolution, Volume 15, Issue 7, July 2025.
This study examines the invasion dynamics of the predatory invertebrate flatworm Kontikia andersoni, and its impacts on the invertebrate communities of sub‐Antarctic Macquarie Island. Our findings indicate that at higher elevations where K. andersoni is present there are significant reductions in invertebrate richness.
Kita M. Williams   +4 more
wiley   +1 more source

URBAN TREE CROWN PROJECTION AREA MAPPING WITH OBJECT BASED IMAGE ANALYSIS FOR URBAN ECOSYSTEM SERVICE INDICATOR DEVELOPMENT [PDF]

open access: yes, 2014
The continuous expansion of built-up areas in the urban environment at the expense of green spaces brings up numerous environmental problems, for which accurate and efficient solutions should be found.
GULYÁS ÁGNES   +3 more
core   +2 more sources

Optimal Segmentation Scale Parameter, Feature Subset and Classification Algorithm for Geographic Object-Based Crop Recognition Using Multisource Satellite Imagery

open access: yesRemote Sensing, 2019
Geographic object-based image analysis (GEOBIA) has been widely used in the remote sensing of agricultural crops. However, issues related to image segmentation, data redundancy and performance of different classification algorithms with GEOBIA have not ...
Lingbo Yang   +3 more
doaj   +1 more source

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