Results 1 to 10 of about 793 (134)

Object-Scale Adaptive Convolutional Neural Networks for High-Spatial Resolution Remote Sensing Image Classification

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Object-based image analysis (OBIA) is regarded as an effective technology for high-spatial resolution (HSR) image classification due to its clear and intuitive technical process. However, OBIA depends on the manual tuning of image classification features,
Jie Wang   +4 more
doaj   +3 more sources

UAV Photogrammetry for Concrete Bridge Inspection Using Object-Based Image Analysis (OBIA)

open access: yesRemote Sensing, 2020
Monitoring infrastructures is becoming an important and challenging issue. In Italy, the heritage consists of more than 60,000 bridges, which need to be inspected and detected in order to guarantee their strength and durability function during nominal ...
Sara Zollini   +4 more
doaj   +3 more sources

Deep-learning Versus OBIA for Scattered Shrub Detection with Google Earth Imagery: Ziziphus lotus as Case Study

open access: yesRemote Sensing, 2017
There is a growing demand for accurate high-resolution land cover maps in many fields, e.g., in land-use planning and biodiversity conservation. Developing such maps has been traditionally performed using Object-Based Image Analysis (OBIA) methods, which
Emilio Guirado   +4 more
doaj   +3 more sources

Evaluating UAV Multispectral Imagery, Machine Learning and Image Analysis Techniques for Mapping Taro and Sweet Potato in a Smallholder Cropland in Swayimane, South Africa

open access: yesGeo: Geography and Environment
Accurate mapping of neglected and underutilised crop species (NUS) in complex smallholder fields is critical for enhancing food security, yet it remains a significant challenge due to landscape heterogeneity, spectral similarities between crops and the ...
Mishkah Abrahams   +7 more
doaj   +2 more sources

The potentials of Sentinel-2 and LandSat-8 data in green infrastructure extraction, using object based image analysis (OBIA) method

open access: yesEuropean Journal of Remote Sensing, 2018
Green infrastructure (GI) mapping and monitoring is crucial in urban areas, and remote sensing is widely used to accomplish the task. Improved moderate resolution Sentinel-2A (10 m) and LandSat-8 (15 m) images, in place of commercial satellite images ...
S M Labib, Angela Harris
doaj   +2 more sources

OBJECT BASED APPROACH FOR IMAGE FEATURE EXTRACTION FROM UAV DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
This present study explores the potential of utilizing Unmanned Aerial Vehicle (UAV) data for mapping urban areas, emphasizing the effectiveness of combining UAV technology with Object-Based Image Analysis (OBIA) in updating maps.
S. K. Sharma   +4 more
doaj   +1 more source

Object-based multiscale segmentation incorporating texture and edge features of high-resolution remote sensing images [PDF]

open access: yesPeerJ Computer Science, 2023
Multiscale segmentation (MSS) is crucial in object-based image analysis methods (OBIA). How to describe the underlying features of remote sensing images and combine multiple features for object-based multiscale image segmentation is a hotspot in the ...
Xiaole Shen, Yiquan Guo, Jinzhou Cao
doaj   +2 more sources

Optimized unsupervised CORINE Land Cover mapping using linear spectral mixture analysis and object-based image analysis

open access: yesEgyptian Journal of Remote Sensing and Space Sciences, 2021
In this paper, the approach Linear Spectral Mixture Analysis and Object-Based Image Analysis (LSMA + OBIA) and Iterative Self-Organizing Data Analysis Technique and Object-Based Image Analysis (ISODATA + OBIA) are evaluated, for optimizing land cover ...
Silvia Ruggeri   +3 more
doaj   +1 more source

A recurrent curve matching classification method integrating within-object spectral variability and between-object spatial association

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2021
Object-based image analysis (OBIA), which has been commonly used for land cover and land use classification, may encounter challenges when satellite images’ spatial resolution achieves at the sub-meter level.
Yunwei Tang   +4 more
doaj   +1 more source

Mapping and Assessment of Housing Informality Using Object-Based Image Analysis: A Review

open access: yesUrban Science, 2023
Research on the detection of informal settlements has increased in the past three decades owing to the availability of high- to very-high-spatial-resolution satellite imagery.
Naledzani Mudau, Paidamwoyo Mhangara
doaj   +1 more source

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