Results 51 to 60 of about 48,735,301 (199)

Self-Adaptive-Filling Deep Convolutional Neural Network Classification Method for Mountain Vegetation Type Based on High Spatial Resolution Aerial Images

open access: yesRemote Sensing, 2023
The composition and structure of mountain vegetation are complex and changeable, and thus urgently require the integration of Object-Based Image Analysis (OBIA) and Deep Convolutional Neural Networks (DCNNs). However, while integration technology studies
Shiou Li   +7 more
doaj   +1 more source

Improving Machine Learning Classifications of Phragmites australis Using Object-Based Image Analysis

open access: yesRemote Sensing, 2023
Uncrewed aircraft systems (UASs) are a popular tool when surveilling for invasive alien plants due to their high spatial and temporal resolution. This study investigated the efficacy of a UAS equipped with a three-band (i.e., red, green, blue; RGB ...
Connor J. Anderson   +3 more
doaj   +1 more source

Dual-season comparison of OBIA and pixel-based approaches for coastal wetland classification [PDF]

open access: yesRBRH
Mapping and classifying Coastal Wetlands is important for their conservation. The study aimed to apply Object-Based Image Analysis (OBIA) and pixel-based approaches to answer the questions: (1) which approach is more accurate for classifying Wetlands; (2)
João Paulo Delapasse Simioni   +1 more
doaj   +1 more source

Monitoring Urban Tree Cover Using Object-Based Image Analysis and Public Domain Remotely Sensed Data

open access: yesRemote Sensing, 2011
Urban forest ecosystems provide a range of social and ecological services, but due to the heterogeneity of these canopies their spatial extent is difficult to quantify and monitor.
Meghan Halabisky   +2 more
doaj   +1 more source

Earthquake Aftermath from Very High-Resolution WorldView-2 Image and Semi-Automated Object-Based Image Analysis (Case Study: Kermanshah, Sarpol-e Zahab, Iran)

open access: yesRemote Sensing, 2021
This study aimed to classify an urban area and its surrounding objects after the destructive M7.3 Kermanshah earthquake (12 November 2017) in the west of Iran using very high-resolution (VHR) post-event WorldView-2 images and object-based image analysis (
Davoud Omarzadeh   +3 more
doaj   +1 more source

Suitable habitat of Himalayan wolf in Upper Mustang, Annapurna Conservation Area, Nepal

open access: yesWildlife Biology, EarlyView.
Decades ago, the Himalayan wolf Canis lupus chanco, a genetically distinct sub‐species of the gray wolf Canis lupus, faced persecution by local communities in the Nepalese Himalayas. Recently, wolf populations have returned and recolonized, sparking concerns about conflicts over livestock depredation, and emphasizing the urgent need for comprehensive ...
Deu Bahadur Rana   +5 more
wiley   +1 more source

Enhanced spatial pyramid matching using log-polar-based image subdivision and representation [PDF]

open access: yes, 2010
This paper presents a new model for capturing spatial information for object categorization with bag-of-words (BOW). BOW models have recently become popular for the task of object recognition, owing to their good performance and simplicity. Much work has
Zhang, Edmond Yiwen   +3 more
core   +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

Object based image analysis for remote sensing [PDF]

open access: yes, 2010
Remote sensing imagery needs to be converted into tangible information which can be utilised in conjunction with other data sets, often within widely used Geographic Information Systems (GIS). As long as pixel sizes remained typically coarser than, or at
Blaschke, T.
core   +1 more source

Object-based video representations: shape compression and object segmentation [PDF]

open access: yes, 1998
Object-based video representations are considered to be useful for easing the process of multimedia content production and enhancing user interactivity in multimedia productions.
Brady, Noel
core   +2 more sources

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