Results 61 to 70 of about 9,304 (219)

Análise da Qualidade da Segmentação e Classificação de uma Imagem Urbana do Satélite GeoEye-1 Baseada em Objeto e Realizadas nas Plataformas PostgreSQL e InterIMAGE [PDF]

Anuário do Instituto de Geociências, 2019
A técnica denominada de classificação baseada em objetos, proposta por Baatz & Shäpe (2000), trata-se de uma abordagem de processamento de imagens em que a unidade primitiva é o objeto, composto de vários pixels.
Simone Dutra Martins Guarda, Edilson Souza Bias, Edson Eyji Sano, Emiliano Ferreira Castejon, Patrick Nigri Happ, Rogério Baptista de Sousa   +5 more
doaj  

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

Geosciences, 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, Clemens Eisank, Florian Albrecht, Filippo Vecchiotti, Barbara Friedl, Elisabeth Weinke, Arben Kociu   +6 more
doaj   +1 more source

Topology, homogeneity and scale factors for object detection: application of eCognition software for urban mapping using multispectral satellite image

, 2018
The research scope of this paper is to apply spatial object based image analysis (OBIA) method for processing panchromatic multispectral image covering study area of Brussels for urban mapping.
Lemenkova, Polina
core   +2 more sources

Weakly supervised fully convolutional networks using OBIA classification output

2019 Joint Urban Remote Sensing Event (JURSE), 2019
In this paper, we present a methodology for preparing reference data to be used in training a fully convolutional neural network. It is a laborious and timeconsuming task to prepare adequate training data for a Fully convolutional network (FCN) since the tiles need to be fully labeled.
Mboga, Nicholus O., Georganos, Stefanos, Grippa, Taïs, Vanhuysse, Sabine, Lennert, Moritz, Wolff, Eléonore   +5 more
openaire   +2 more sources

Biofortification of finger millet with zinc and iron under biochar amendment: Effects of soil and foliar fertilization on yield and grain quality

Agrosystems, Geosciences &Environment, Volume 9, Issue 2, June 2026.
Abstract Biofortification is an effective strategy to improve the micronutrient content of staple crops. However, biofortification of finger millet (Eleusine coracana L.) with zinc (Zn) and iron (Fe) has not been adequately investigated under biochar amendment.
Alinafe Manjawire, Peter Omara, Vegard Martinsen, Rajiv Kumar Srivastava, Fred Otim, Tonny L. Provin, Ronnie Schnell, Alfred Obia   +7 more
wiley   +1 more source

Fusion of pixel-based and object-based features for classification of urban hyperspectral remote sensing data [PDF]

, 2014
Hyperspectral imagery contains a wealth of spectral and spatial information that can improve target detection and recognition performance. Typically, spectral information is inferred pixel-based, while spatial information related to texture, context and ...
Devriendt, Flore, Gautama, Sidharta, Liao, Wenzhi, Philips, Wilfried, Pizurica, Aleksandra, Vancoillie, Frieke   +5 more
core  

ANALISA JENIS MANGROVE MENGGUNAKAN CITRA UAV DENGAN KLASIFIKASI OBIA

JURNAL HUTAN PULAU-PULAU KECIL, 2020
The difficulty of the inventory carried out in the mangrove forest area is due to the vast expanse of ​​mangrove forests with a high-density level, so it must use High-Resolution Satellite Imagery (CSRT) which requires high costs. The approach to processing very high-resolution images is the object-based approach (OBIA).
Ferad Puturuhu, Gun Mardiatmoko, Woody A. Timisela   +2 more
openaire   +2 more sources

An open-source semi-automated processing chain for urban obia classification [PDF]

GEOBIA 2016: Solutions and synergies, 2016
This study presents the development of a semi-automated processing chain for OBIA urban land-cover and land-use classification. Implemented in Python and relying on existing open-source software GRASS GIS and R. The complete tool chain is available in open-access and adaptable to specific user needs.
Grippa, Taïs, Lennert, Moritz, Beaumont, Benjamin, Vanhuysse, Sabine, Stephenne, Nathalie, Wolff, Eléonore   +5 more
openaire   +2 more sources

Mechanisms of Vegetation Community Self‐Organization Driven by Water Availability in Arid Northwest China

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Precipitation is scarce in arid regions, making water redistribution a key driver of vegetation patterns, especially for non‐zonal vegetation in oases. Nevertheless, the coupling and mutual feedback mechanism between water and vegetation distribution is complex, and it has not been fully addressed. Taking an arid region of Northwest China as a
Xing Li, Yong Wang, Yong Zhao, Long Yan, Fan He, Jiaqi Zhai, Jiaxin Li, Yuan Liu, Kuan Liu, Yajie Hu, Zhu Wang, Minjian Chen   +11 more
wiley   +1 more source

Comparison of spectral indices extracted from Sentinel-2 images to map plastic covered greenhouses through an object-based approach

GIScience & Remote Sensing, 2022
One of the most important challenges of agriculture today is increasing its productivity gains, while controlling its environmental footprint. Because of that plastic covered greenhouses (PCG) mapping via remote sensing is receiving a great attention ...
Manuel A. Aguilar, Rafael Jiménez-Lao, Claudio Ladisa, Fernando J. Aguilar, Eufemia Tarantino   +4 more
doaj   +1 more source