Results 31 to 40 of about 3,416 (165)

Object-Based Image Analysis in Wetland Research: A Review

open access: yesRemote Sensing, 2015
The applications of object-based image analysis (OBIA) in remote sensing studies of wetlands have been growing over recent decades, addressing tasks from detection and delineation of wetland bodies to comprehensive analyses of within-wetland cover types ...
Iryna Dronova
doaj   +1 more source

Quantitative assessment of ground deformations for the risk management of petroleum and gas pipelines using radar interferometry

open access: yesGeomatics, Natural Hazards & Risk, 2020
The primary objective of these studies was to quantitatively assess the ground deformation velocities and rates and their natural and man-made controlling factors as the potential risks along the seismically active 70 km section of buried Baku-Tbilisi ...
Emil Bayramov   +2 more
doaj   +1 more source

Supporting Digital Agriculture Through GeoAI: A Crop Type Dataset of Four Food Basket Crops in Rwanda

open access: yesGeoscience Data Journal, Volume 13, Issue 4, October 2026.
A harmonised, GeoAI‐ready crop type dataset comprising 2739 georeferenced field points and 914 labelled polygons across four Rwandan districts addresses critical data gaps for model calibration and validation. This open, agronomically rich dataset strengthens digital agriculture, crop monitoring and food security efforts in Rwanda and sub‐Saharan ...
Benson Kenduiywo   +9 more
wiley   +1 more source

A hierarchical unmanned aerial system–light detection and ranging–satellite learning framework for scaling heterogeneous vegetation cover mapping in rangelands

open access: yesGrassland Research, Volume 5, Issue 3, Page 245-269, September 2026.
This study shows how drones, light detection and ranging (LiDAR), and satellites can be combined to map vegetation in rangelands more effectively. Drone imagery captures fine‐scale plant details, LiDAR adds information about vegetation structure and height, and satellite data allow the mapping approach to be expanded across larger areas.
Nishat Shermin   +3 more
wiley   +1 more source

arredond/haiti-obia: First release

open access: yes, 2019
Haiti use case of a full Object Based Image Analysis workflow, from data acquisition to classification of roofs and Model Building ...
arredond
core   +1 more source

Evaluating the Use of an Object-Based Approach to Lithological Mapping in Vegetated Terrain

open access: yesRemote Sensing, 2016
Remote sensing-based approaches to lithological mapping are traditionally pixel-oriented, with classification performed on either a per-pixel or sub-pixel basis with complete disregard for contextual information about neighbouring pixels.
Stephen Grebby   +2 more
doaj   +1 more source

Significant Decline in Carbon Storage at the Edges of Mangrove Forest

open access: yesEarth's Future, Volume 14, Issue 9, September 2026.
Abstract Quantitative analysis of blue carbon stored in mangrove ecosystems is essential for understanding their role in climate change mitigation. However, the impacts of edge effects in fragmented mangrove forests are often overlooked in large‐scale blue carbon assessments.
Ziqi Zhao   +8 more
wiley   +1 more source

Comparing Manual and Semi-Automated Landslide Mapping Based on Optical Satellite Images from Different Sensors

open access: yesGeosciences, 2017
Object-based image analysis (OBIA) has been increasingly used to map geohazards such as landslides on optical satellite images. OBIA shows various advantages over traditional image analysis methods due to its potential for considering various properties ...
Daniel Hölbling   +6 more
doaj   +1 more source

Monitoring Dynamics of Vegetation Cover with the Integration of OBIA and Random Forest Classifier Using Sentinel-2 Multitemporal Satellite Imagery

open access: yesGeoplanning: Journal of Geomatics and Planning, 2021
The existence of vegetation in an area has an important role to maintain the carrying capacity of the environment and create a comfortable environment as a place to live.
Nurwita Mustika Sari   +2 more
doaj   +1 more source

Sewage Sludge and Cashew Bagasse Biochars Promote Changes in Selected Physical Attributes Related to the Structure of Degraded Dryland Soil

open access: yesJournal of Plant Nutrition and Soil Science, Volume 189, Issue 4, Page 460-478, August 2026.
This study evaluated biochars from co‐pyrolysis of sewage sludge and cashew residues on physical quality of a degraded loamy sand soil. SPB applied at 20 Mg ha−1 reduced bulk density by 7.74%, whereas most porosity attributes were driven by soil reconsolidation rather than biochar. Aggregate stability varied with biochar type, with SPB promoting larger
João Marcos Rodrigues dos Santos   +14 more
wiley   +1 more source

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