Results 51 to 60 of about 49,010,873 (166)

Effect of Image-Processing Routines on Geographic Object-Based Image Analysis for Mapping Glacier Surface Facies from Svalbard and the Himalayas

Remote Sensing, 2022
Advancements in remote sensing have led to the development of Geographic Object-Based Image Analysis (GEOBIA). This method of information extraction focuses on segregating correlated pixels into groups for easier classification.
Shridhar D. Jawak, Sagar F. Wankhede, Alvarinho J. Luis, Keshava Balakrishna   +3 more
doaj   +1 more source

Environmental Stressors Influence Spatial Complexity in a Fluvial Macrophyte meadow

Remote Sensing in Ecology and Conservation, EarlyView.
This research investigates the nonlinear relationships between environmental stressors and the fine‐scale spatial complexity of a fluvial macrophytes meadow. The use of multivariate spatial analysis allowed us to identify two major environmental gradients (nutrients and light) and two major complexity gradients (related to abundance and fragmentation).
Arthur de Grandpré, Christophe Kinnard, Andrea Bertolo   +2 more
wiley   +1 more source

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

International 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, Jose A. Piedra-Fernandez, Rosa Ayala   +2 more
doaj   +1 more source

Assessing forest fragmentation and biodiversity impacts in sub‐Saharan Africa: Methodological challenges and conservation strategies for small‐scale agricultural landscapes

Agrosystems, Geosciences &Environment, Volume 9, Issue 2, June 2026.
Abstract Tropical forests in sub‐Saharan Africa (SSA) harbor around one‐third of the world's species but are becoming more fragmented due to the expansion of human settlements and small‐scale agricultural (SCA) areas. This study systematically reviewed the approaches and methods used to analyze forest fragmentation and its impact on biodiversity in SSA,
Gillie Cheelo, Hastings Shamaoma, Charles Bwalya Chisanga, Jules Christian Zekeng, Stephen Syampungani   +4 more
wiley   +1 more source

Trait‐Based Community Assembly in Early Tropical Forest Succession

Journal 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, Masha T. van der Sande, Lucy Amissah, Jonathan Dabo, Salim Mohammed Abdul, Lourens Poorter   +5 more
wiley   +1 more source

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

Remote 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, Lamin R. Mansaray, Jingfeng Huang, Limin Wang   +3 more
doaj   +1 more source

AN UNSUPERVISED SEGMENTATION METHOD FOR REMOTE SENSING IMAGERY BASED ON CONDITIONAL RANDOM FIELDS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Segmentation is a fundamental problem in image processing and a common operation in Remote Sensing, which has been widely used especially in Geographic Object-Based Image Analysis (GEOBIA).
A. R. Soares, T. S. Körting, L. M. G. Fonseca, A. K. Neves   +3 more
doaj   +1 more source

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

Ecology 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, Samuel Waite, Melissa Houghton, Jennifer Firn, Justine Shaw   +4 more
wiley   +1 more source

On the Objectivity of the Objective Function—Problems with Unsupervised Segmentation Evaluation Based on Global Score and a Possible Remedy

Remote Sensing, 2017
Image segmentation is a crucial stage at the very beginning of many geographic object-based image analysis (GEOBIA) workflows. While segmentation quality is generally deemed of great importance, selecting adequate tuning parameters for a segmentation ...
Sebastian Böck, Markus Immitzer, Clement Atzberger   +2 more
doaj   +1 more source

Assessing natural and human‐induced river corridor changes using object‐based image analysis (Orljava River, Croatia)

River Research and Applications, Volume 41, Issue 2, Page 285-300, February 2025.
Abstract This study employs object‐based image analysis to investigate land cover dynamics and channel changes in the managed corridor of the Orljava River following anthropogenic vegetation removal and a flood event. By classifying RGB and near‐infrared (NIR) images from the decade 2011–2021, five land cover classes within the river corridor were ...
Katarina Pavlek, Mateo Gašparović, Ronald E. Poeppl   +2 more
wiley   +1 more source