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Dissertations / Theses on the topic 'Multitemporel'

Author: Grafiati

Published: 7 July 2024

Last updated: 31 July 2025

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1

Alvarez, padilla Francisco Javier. "AIMM - Analyse d'Images nucléaires dans un contexte Multimodal et Multitemporel." Thesis, Reims, 2019. http://www.theses.fr/2019REIMS017/document.

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Ces travaux de thèse portent sur la proposition de stratégies de segmentation des tumeurs cancéreuses dans un contexte multimodal et multitemporel. La multimodalité fait référence au couplage de données TEP/TDM pour exploiter conjointement les deux sources d’information pour améliorer les performances de la segmentation. La multitemporalité fait référence à la disposition des images acquises à différents dates, ce qui limite une correspondance spatiale possible entre elles.Dans une première méthode, une structure arborescente est utilisée pour traiter et pour extraire des informations afin d’a

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BAPPEL, Eric Albert. "Apport de la teledetection aerospatiale pour l'a ide à la gestion de la sole canniere reunionnaise." Phd thesis, Université de la Réunion, 2005. http://tel.archives-ouvertes.fr/tel-00489730.

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L'objectif de cette thèse est d'étudier les potentialités de la télédétection aérospatiale pour l'aide à la gestion de sole cannière Réunionnaise. Nous avons utilisé une base de données d'images multitemporelles SPOT 4&5 (années 2002 et 2003) et organisé une campagne d'acquisition d'images hyperspectrales CASI en septembre 2002. Simultanément, nous avons assuré le déroulement et la mise en place d'un protocole de mesures au champ pour suivre l'évolution des paramètres biophysiques descriptifs de l'état du couvert de la canne (surface foliaire, taux d'azote, biomasse de la culture) et des param

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3

Gimenez, Rollin. "Exploitation de données optiques multimodales pour la cartographie des espèces végétales suivant leur sensibilité aux impacts anthropiques." Electronic Thesis or Diss., Toulouse, ISAE, 2023. http://www.theses.fr/2023ESAE0030.

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Les impacts anthropiques sur les sols végétalisés sont difficiles à caractériser à l'aide d’instruments de télédétection optique. Ces impacts peuvent cependant entrainer de graves conséquences environnementales. Leur détection indirecte est rendue possible par les altérations provoquées sur la biocénose et la physiologie des plantes, qui se traduisent par des changements de propriétés optiques au niveau de la plante et de la canopée. L'objectif de cette thèse est de cartographier les espèces végétales en fonction de leur sensibilité aux impacts anthropiques à l'aide de données de télédétection

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4

BECCATI, Alan. "Multi-sensor Evolution Analysis: an advanced GIS for interactive time series analysis and modelling based on satellite data." Doctoral thesis, Università degli studi di Ferrara, 2011. http://hdl.handle.net/11392/2388733.

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Archives of Earth remote sensing data, acquired from orbiting satellites, contain large amounts of information that can be used both for research activities and decision support. Thematic categorization is one method to extract from satellite data meaningful information that humans can directly comprehend. An interactive system that permits to analyse geo-referenced thematic data and its evolution over time is proposed as a tool to efficiently exploit such vast and growing amount of data. This thesis describes the approach used in building the system, the data processing methodology, details a

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BAPPEL, Eric Albert. "APPORT DE LA TELEDETECTION AEROSPATIALE POUR L'AIDE A LA GESTION DE LA SOLE CANNIERE REUNIONNAISE." Phd thesis, Université de la Réunion, 2005. http://tel.archives-ouvertes.fr/tel-00009403.

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L'objectif de cette thèse est d'étudier les potentialités de la télédétection aérospatiale pour l'aide à la gestion de sole cannière Réunionnaise. Nous avons utilisé une base de données d'images multitemporelles SPOT 4&5 (années 2002 et 2003) et organisé une campagne d'acquisition d'images hyperspectrales CASI en septembre 2002. Simultanément, nous avons assuré le déroulement et la mise en place d'un protocole de mesures au champ pour suivre l'évolution des paramètres biophysiques descriptifs de l'état du couvert de la canne (surface foliaire, taux d'azote, biomasse de la culture) et des param

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6

Lê, Thu Trang. "Extraction d'informations de changement à partir des séries temporelles d'images radar à synthèse d'ouverture." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAA020/document.

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La réussite du lancement d'un grand nombre des satellites Radar à Synthèse d'Ouverture (RSO - SAR) de nouvelle génération a fourni régulièrement des images SAR et SAR polarimétrique (PolSAR) multitemporelles à haute et très haute résolution spatiale sur de larges régions de la surface de la Terre. Le système SAR est approprié pour des tâches de surveillance continue ou il offre l'avantage d'être indépendant de l'éclairement solaire et de la couverture nuageuse. Avec des données multitemporelles, l'information spatiale et temporelle peut être exploitée simultanément pour rendre plus concise, l'

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Lima, Elaine de Cacia de. "Qualidade multitemporal da paisagem." reponame:Repositório Institucional da UFPR, 2013. http://hdl.handle.net/1884/26113.

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O uso inadequado dos recursos naturais foi uma constante no passado em toda a Região Sul do Brasil. Para orientar o uso sustentável desses recursos se faz necessário o desenvolvimento de pesquisas que permitam diagnosticar a qualidade da paisagem de determinado espaço geográfico e que proporcionem soluções adequadas de uso e conservação. Com este propósito foi desenvolvida uma pesquisa em General Carneiro, Estado do Paraná, no Bioma da Floresta Ombrófila Mista, em uma propriedade das Indústrias Pizzatto. Com o objetivo de realizar análise e interpretação multitemporal da qualidade visual da pa

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8

Qi, Jiaguo. "Compositing multitemporal remote sensing data." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186327.

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In order to reduce the problems of clouds, atmospheric variations, view angle effects, and the soil background variations in the high temporal frequency AVHRR data, a compositing technique is usually employed. Current compositing techniques use a single pixel selection criterion of outputting the input pixel of maximum value NDVI. Problems, however, exist due to the use of the NDVI classifier and to the imperfection of the pixel selection criteria of the algorithm itself. The NDVI was found not to have the maximum value under an ideal observation condition, while the single pixel selection cri

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9

Yousif, Osama. "Change Detection Using Multitemporal SAR Images." Licentiate thesis, KTH, Geodesi och geoinformatik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-123494.

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Multitemporal SAR images have been used successfully for the detection of different types of environmental changes. The detection of urban change using SAR images is complicated due to the special characteristics of SAR images—for example, the existence of speckle and the complex mixture of the urban environment. This thesis investigates the detection of urban changes using SAR images with the following specific objectives: (1) to investigate unsupervised change detection, (2) to investigate reduction of the speckle effect and (3) to investigate spatio-contextual change detection. Beijing and

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10

Vicente-Guijalba, Fernando. "Teledetección Multitemporal mediante Dinámica de Sistemas." Doctoral thesis, Universidad de Alicante, 2016. http://hdl.handle.net/10045/57626.

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Fröjse, Linda. "Multitemporal Satellite Images for Urban Change Detection." Thesis, KTH, Geoinformatik och Geodesi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-38539.

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The objective of this research is to detect change in urban areas using two satellite images (from 2001 and 2010) covering the city of Shanghai, China. These satellite images were acquired by Landsat-7 and HJ-1B, two satellites with different sensors. Two change detection algorithms were tested: image differencing and post-classification comparison. For image differencing the difference image was classified using unsupervised k-means classification, the classes were then aggregated into change and no change by visual inspection. For post-classification comparison the images were classified usi

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Yousif, Osama. "Urban Change Detection Using Multitemporal SAR Images." Doctoral thesis, KTH, Geoinformatik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-168216.

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Multitemporal SAR images have been increasingly used for the detection of different types of environmental changes. The detection of urban changes using SAR images is complicated due to the complex mixture of the urban environment and the special characteristics of SAR images, for example, the existence of speckle. This thesis investigates urban change detection using multitemporal SAR images with the following specific objectives: (1) to investigate unsupervised change detection, (2) to investigate effective methods for reduction of the speckle effect in change detection, (3) to investigate s

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COSTA, MARIA CLARA DE OLIVEIRA. "A FUZZY MODEL FOR MULTITEMPORAL IMAGE CLASSIFICATION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2006. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=8953@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>O presente trabalho apresenta a modelagem de conhecimento multitemporal para a classificação automática de cobertura do solo para imagens de satélite. O procedimento de classificação agrega os conhecimentos espectral e multitemporal utilizando conjuntos nebulosos e suas pertinências de classe como informação prévia. O método se baseia no conceito de Redes de Markov Nebulosas, um sistema com um conjunto de estados que a cada instante de tempo troca o estado corrente de acordo com possibilidades associadas a cada um. No caso

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14

Oighenstein, Anderson Liana. "Multitemporal analysis of evergreen forest dynamics in Amazonia." Thesis, University of Oxford, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.534294.

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15

Ghannam, Sherin Ghannam. "Multisensor Multitemporal Fusion for Remote Sensing using Landsat and MODIS Data." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/81092.

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The growing Landsat data archive represents more than four decades of continuous Earth observation. Landsat's role in scientific analysis has increased dramatically in recent years as a result of the open-access policy of the U.S. Geological Survey (USGS). However, this rich data record suffers from relatively low temporal resolution due to the 16-day revisit period of each Landsat satellite. To estimate Landsat images at other points in time, researchers have proposed data-fusion approaches that combine existing Landsat data with images from other sensors, such as MODIS (Moderate Resolution

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16

Breeden, Charles F. "A multitemporal analysis of Georgia's coastal vegetation, 1990-2005." unrestricted, 2008. http://etd.gsu.edu/theses/available/etd-04172008-133241/.

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Thesis (M.A.)--Georgia State University, 2008.<br>Title from file title page. Jeremy Diem, committee chair; Jeremy Crampton, John Allensworth, committee members. Electronic text (126 p. : col. maps) : digital, PDF file. Description based on contents viewed July 17, 2008. Includes bibliographical references (p. 110-121).

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Breeden, Charles III F. "A Multitemporal Analysis of Georgia's Coastal Vegetation, 1990-2005." Digital Archive @ GSU, 2008. http://digitalarchive.gsu.edu/geosciences_theses/10.

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Land and vegetation changes are part of the continuous and dynamic cycle of earth system variation. This research examines vegetation changes in the 21-county eco-region along coastal Georgia. The Advanced Very High Resolution Radiometer (AVHRR) with Normalized Difference Vegetation Index (NDVI) data is used in tandem with a Principal Component Analysis (PCA) and climatic variables to determine where, and to what extent vegetation and land cover change is occurring. This research is designed around a 16 year time-series from 1990-2005. Findings were that mean NDVI values were either stead

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GUIMARÃES, Ariana Silva. "Análise multitemporal da superfície de manguezal do litoral Norte de Pernambuco : a participação da Aquicultura na conversão de áreas de mangue em viveiro." Universidade Federal Rural de Pernambuco, 2007. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6232.

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Submitted by (edna.saturno@ufrpe.br) on 2017-02-08T12:16:49Z No. of bitstreams: 1 Ariana Silva Guimaraes.pdf: 4145532 bytes, checksum: 9a569584ad7aca9c7d6809dd2ed7880d (MD5)<br>Made available in DSpace on 2017-02-08T12:16:49Z (GMT). No. of bitstreams: 1 Ariana Silva Guimaraes.pdf: 4145532 bytes, checksum: 9a569584ad7aca9c7d6809dd2ed7880d (MD5) Previous issue date: 2007-02-27<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq<br>The conversion of mangrove areas to nurseries in Brazil has been reported since the 18th century, mainly in the Northeast region. Du

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Niu, Xin. "Multitemporal Spaceborne Polarimetric SAR Data for Urban Land Cover Mapping." Doctoral thesis, KTH, Geodesi och geoinformatik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-104762.

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Urban land cover mapping represents one of the most important remote sensing applications in the context of rapid global urbanization. In recent years, high resolution spaceborne Polarimetric Synthetic Aperture Radar (PolSAR) has been increasingly used for urban land cover/land-use mapping, since more information could be obtained in multiple polarizations and the collection of such data is less influenced by solar illumination and weather conditions. The overall objective of this research is to develop effective methods to extract accurate and detailed urban land cover information from space

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Niu, Xin. "Multitemporal Spaceborne Polarimetric SAR Data for Urban Land Cover Mapping." Licentiate thesis, KTH, Geodesi och geoinformatik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-31176.

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Urban represents one of the most dynamic areas in the global change context. To support rational policies for sustainable urban development, remote sensing technologies such as Synthetic Aperture Radar (SAR) enjoy increasing popularity for collecting up-to-date and reliable information such as urban land cover/land-use. With the launch of advanced spaceborne SAR sensors such as RADARSAT-2, multitemporal fully polarimetric SAR data in high-resolution become increasingly available. Therefore, development of new methodologies to analyze such data for detailed and accurate urban mapping is in dema

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MOTA, GUILHERME LUCIO ABELHA. "KNOWLEDGE BASED INTERPRETATION APPLIED TO MULTITEMPORAL LOW RESOLUTION SATELLITE IMAGES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2004. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=5483@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>DEUTSCHER AKADEMISCHER AUSTAUSCHDIENST<br>A presente tese investiga a representação explícita de conhecimento específico na interpretação de imagens de baixa resolução multitemporais adquiridas por satélite. Neste contexto, o termo conhecimento específico, se refere a todo e qualquer tipo de conhecimento que torna um indivíduo capaz de ou mais apto para realizar uma determinada tarefa. Dentro do escopo desta tese, conhecimento específico compreende o conjunto das informações necessárias para a interpretação de imagens de s

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Crusco, Natália de Almeida. "Sensoriamento remoto para análise multitemporal da dinâmica de áreas agrícolas." Instituto Nacional de Pesquisas Espaciais, 2006. http://urlib.net/sid.inpe.br/MTC-m13@80/2006/08.25.14.03.

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Estatísticas agrícolas são importantes em um país como o Brasil, onde a agricultura desempenha um papel fundamental na economia brasileira. As metodologias atualmente utilizadas são baseadas em dados subjetivos, e apresentam um caráter nãoprobabilístico. No intuito de aprimorar os resultados obtidos, o projeto Geosafras utiliza dados de sensoriamento remoto associado a dados de campo na geração de estimativa de áreas agrícolas para as principais culturas existentes no país. Porém, este método apresenta algumas limitações quanto à validação dos dados provenientes do campo. Neste sentido, este

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23

Liu, Sicong. "Advanced Techniques for Automatic Change Detection in Multitemporal Hyperspectral Images." Doctoral thesis, Università degli studi di Trento, 2015. https://hdl.handle.net/11572/368616.

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The increasing availability of the new generation remote sensing satellite hyperspectral images provides an important data source for Earth Observation (EO). Hyperspectral images are characterized by a very detailed spectral sampling (i.e., very high spectral resolution) over a wide spectral wavelength range. This important property makes it possible the monitoring of the land-cover dynamic and environmental evolution at a fine spectral scale. This also allows one to potentially detect subtle spectral variations associated with the land-cover transitions that are usually not detectable in the

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Liu, Sicong. "Advanced Techniques for Automatic Change Detection in Multitemporal Hyperspectral Images." Doctoral thesis, University of Trento, 2015. http://eprints-phd.biblio.unitn.it/1393/1/Thesis-SicongLiu.pdf.

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The increasing availability of the new generation remote sensing satellite hyperspectral images provides an important data source for Earth Observation (EO). Hyperspectral images are characterized by a very detailed spectral sampling (i.e., very high spectral resolution) over a wide spectral wavelength range. This important property makes it possible the monitoring of the land-cover dynamic and environmental evolution at a fine spectral scale. This also allows one to potentially detect subtle spectral variations associated with the land-cover transitions that are usually not detectable in the

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Marin, Carlo. "Advanced methods for change detection in VHR multitemporal SAR images." Doctoral thesis, Università degli studi di Trento, 2015. https://hdl.handle.net/11572/368566.

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Change detection aims at identifying possible changes in the state of an object or phenomenon by jointly observing data acquired at different times over the same geographical area. In this context, the repetitive coverage and high quality of remotely sensed images acquired by Earth-orbiting satellites make such kind of data an ideal information source for change detection. Among the different kinds of Earth-observation systems, here we focus on Synthetic Aperture Radar (SAR). Differently from optical sensors, SAR is able to regularly monitor the Earth surface independently from the presence of

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Marin, Carlo. "Advanced methods for change detection in VHR multitemporal SAR images." Doctoral thesis, University of Trento, 2015. http://eprints-phd.biblio.unitn.it/1435/1/PhD-Thesis.pdf.

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Change detection aims at identifying possible changes in the state of an object or phenomenon by jointly observing data acquired at different times over the same geographical area. In this context, the repetitive coverage and high quality of remotely sensed images acquired by Earth-orbiting satellites make such kind of data an ideal information source for change detection. Among the different kinds of Earth-observation systems, here we focus on Synthetic Aperture Radar (SAR). Differently from optical sensors, SAR is able to regularly monitor the Earth surface independently from the presence o

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Solano-Correa, Yady Tatiana. "Advanced methods for the analysis of multispectral multitemporal satellite images." Doctoral thesis, Università degli studi di Trento, 2018. https://hdl.handle.net/11572/369046.

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Thanks to the revisit property of the Earth observation satellites, a huge amount of multitemporal (MT) images are now available in archives. Such kind of images allows us to monitor land surface changes in wide geographical areas according to both long term (e.g., yearly) and short term (e.g., daily) observations. Evolution on the acquisition sensor technology has resulted in the availability of MT and multispectral satellite images with: i) Very High spatial Resolution (VHR) (e.g., Quick-Bird, WorlView-2) and, ii) very high temporal and high spatial resolutions (e.g., Sentinel-2 (S2)). Image

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Solano-Correa, Yady Tatiana. "Advanced methods for the analysis of multispectral multitemporal satellite images." Doctoral thesis, University of Trento, 2018. http://eprints-phd.biblio.unitn.it/2845/1/PhD-Thesis-SolanoCorreaYadyTatiana.pdf.

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Thanks to the revisit property of the Earth observation satellites, a huge amount of multitemporal (MT) images are now available in archives. Such kind of images allows us to monitor land surface changes in wide geographical areas according to both long term (e.g., yearly) and short term (e.g., daily) observations. Evolution on the acquisition sensor technology has resulted in the availability of MT and multispectral satellite images with: i) Very High spatial Resolution (VHR) (e.g., Quick-Bird, WorlView-2) and, ii) very high temporal and high spatial resolutions (e.g., Sentinel-2 (S2)). Image

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Bertoluzza, Manuel. "Novel Methods for Change Detection in Multitemporal Remote Sensing Images." Doctoral thesis, Università degli studi di Trento, 2019. https://hdl.handle.net/11572/368310.

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The scope of this dissertation is to present and discuss novel paradigms and techniques for the extraction of information from long time series of remotely sensed images. Many images are acquired everyday at high spatial and temporal resolution. The unprecedented availability of images is increasing due to the number of acquiring sensors. Nowadays, many satellites have been launched in orbit around our planet and more launches are planned in the future. Notable examples of currently operating remote sensing missions are the Landsat and Sentinel programs run by space agencies. This trend is spe

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Bertoluzza, Manuel. "Novel Methods for Change Detection in Multitemporal Remote Sensing Images." Doctoral thesis, University of Trento, 2019. http://eprints-phd.biblio.unitn.it/3658/1/thesis_bertoluzza_final_2019-05-02.pdf.

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The scope of this dissertation is to present and discuss novel paradigms and techniques for the extraction of information from long time series of remotely sensed images. Many images are acquired everyday at high spatial and temporal resolution. The unprecedented availability of images is increasing due to the number of acquiring sensors. Nowadays, many satellites have been launched in orbit around our planet and more launches are planned in the future. Notable examples of currently operating remote sensing missions are the Landsat and Sentinel programs run by space agencies. This trend is sp

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Amaral, Luísa Gurjão de Carvalho. "Incremento de carbono estocado na parte aérea de plantios de restauração em corredores integrando unidades de conservação e fragmentos ripários." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-03012018-123354/.

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Metodologias que sejam padronizadas e consolidadas para quantificar carbono em florestas tropicais vem sendo discutidas em convenções climáticas. Este trabalho contribui para a estimativa de biomassa e carbono estocado na parte aérea de áreas de restauração da Mata Atlântica em torno de reservatórios localizados no Pontal do Paranapanema utilizando tecnologia LiDAR (Light Detection and Ranging). Procurou-se explorar o acúmulo e o estoque de carbono em três florestas em diferentes condições de sucessão: duas florestas caracterizdas como madura e a floresta restaurada. Na primeira etapa do traba

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Burkart, Andreas [Verfasser]. "Multitemporal assessment of crop parameters using multisensorial flying platforms / Andreas Burkart." Bonn : Universitäts- und Landesbibliothek Bonn, 2016. http://d-nb.info/1096330075/34.

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Nelson, Marc. "Evaluating Multitemporal Sentinel-2 data for Forest Mapping using Random Forest." Thesis, Stockholms universitet, Institutionen för naturgeografi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-146657.

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The mapping of land cover using remotely sensed data is most effective when a robust classification method is employed. Random forest is a modern machine learning algorithm that has recently gained interest in the field of remote sensing due to its non-parametric nature, which may be better suited to handle complex, high-dimensional data than conventional techniques. In this study, the random forest method is applied to remote sensing data from the European Space Agency’s new Sentinel-2 satellite program, which was launched in 2015 yet remains relatively untested in scientific literature using

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ROSA, LAURA ELENA CUE LA. "CROP RECOGNITION FROM MULTITEMPORAL SAR IMAGE SEQUENCES USING DEEP LEARNING TECHNIQUES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2018. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=34919@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>PROGRAMA DE EXCELENCIA ACADEMICA<br>A presente dissertação tem como objetivo avaliar um conjunto de técnicas de aprendizado profundo para o reconhecimento de culturas agrícolas a partir de sequências multitemporais de imagens SAR. Três métodos foram considerados neste estudo: Autoencoders (AEs), Convolutional Neural Networks (CNNs) and Fully Convolutional Networks (FCNs). A avaliação experimental baseou-se em duas bases de dados contendo sequências de imagens geradas pelo senso

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Cabral, Escleide Gomes. "Análise multitemporal da silvicultura no estado de Goiás via sensoriamento remoto." Universidade Federal de Goiás, 2017. http://repositorio.bc.ufg.br/tede/handle/tede/7032.

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Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2017-03-28T13:04:11Z No. of bitstreams: 2 Dissertação - Escleide Gomes Cabral - 2017.pdf: 6925522 bytes, checksum: 2783097ac78b5d87ec6e06310e6e7e3e (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-03-28T13:04:29Z (GMT) No. of bitstreams: 2 Dissertação - Escleide Gomes Cabral - 2017.pdf: 6925522 bytes, checksum: 2783097ac78b5d87ec6e06310e6e7e3e (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made ava

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Oliphant, Adam J. "Mapping Elaeagnus Umbellata on Coal Surface Mines using Multitemporal Landsat Imagery." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/75119.

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Invasive plant species threaten native plant communities and inhibit efforts to restore disturbed landscapes. Surface coal mines in the Appalachian Mountains are some of the most disturbed landscapes in North America. Moreover, there is not a comprehensive understanding of the land cover characteristics of post- mined lands in Appalachia. Better information on mined lands' vegetative cover and ecosystem recovery status is necessary for implementation of effective environmental management practices. The invasive autumn olive (Elaeagnus umbellata) is abundant on former coal surface mines, often

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Malambo, Lonesome. "Multitemporal mapping of burned areas in mixed landscapes in eastern Zambia." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/71301.

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Fires occur extensively across Zambia every year, a problem recognized as a major threat to biodiversity. Yet, basic tools for mapping at a spatial and temporal scale that provide useful information for understanding and managing this problem are not available. The objectives of this research were: to develop a method to map the spatio-temporal seasonal fire occurrence using satellite imagery, to develop a technique for estimating missing data in the satellite imagery considering the possibility of change in land cover over time, and to demonstrate applicability of these new tools by analyzi

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Brooks, Evan B. "Fourier Series Applications in Multitemporal Remote Sensing Analysis using Landsat Data." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/23276.

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Researchers now have unprecedented access to free Landsat data, enabling detailed monitoring of the Earth's land surface and vegetation. There are gaps in the data, due in part to cloud cover. The gaps are aperiodic and localized, forcing any detailed multitemporal analysis based on Landsat data to compensate. Harmonic regression approximates Landsat data for any point in time with minimal training images and reduced storage requirements. In two study areas in North Carolina, USA, harmonic regression approaches were least as good at simulating missing data as STAR-FM for images from 200

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Sobreiro, João Francisco Ferreira. "Vegetation multitemporal responses to hydroclimate variations in the Espinhaço Range (Brazil) /." Rio Claro, 2019. http://hdl.handle.net/11449/183096.

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Orientador: Thiago Sanna Freire Silva<br>Resumo: Os sistemas montanhosos são laboratórios naturais para análise de gradientes. Elevação, amplitude e diferenças topográficas em montanhas podem criar fortes diferenças microclimáticas a curtas distâncias, aninhadas dentro da mesma região biogeográfica e macroclimática, permitindo-nos compreender melhor as respostas da vegetação e os feedbacks sobre a disponibilidade de água. Neste estudo, avaliamos como a distribuição da vegetação está ligada à disponibilidade de água na Serra do Espinhaço. Para tanto, abordamos as seguintes questões: 1) Quais sã

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Rezende, Filho José Roberto Gonçalves de. "Análise multitemporal de vegetação em ecossistemas de áreas úmidas utilizando séries temporais derivadas do sensor modis na Ilha do Bananal – Tocantins." reponame:Repositório Institucional da UnB, 2017. http://repositorio.unb.br/handle/10482/24034.

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Dissertação (mestrado)—Universidade de Brasília, Instituto de Ciências Humanas, Departamento de Geografia, Programa de Pós-graduação, 2017.<br>Submitted by Raquel Almeida (raquel.df13@gmail.com) on 2017-07-11T19:20:59Z No. of bitstreams: 1 2017_JoséRobertoGonçalvesdeRezendeFilho.pdf: 7880125 bytes, checksum: a1dea249205ed56486aa509fd0ee2c69 (MD5)<br>Approved for entry into archive by Raquel Viana (raquelviana@bce.unb.br) on 2017-08-07T22:01:51Z (GMT) No. of bitstreams: 1 2017_JoséRobertoGonçalvesdeRezendeFilho.pdf: 7880125 bytes, checksum: a1dea249205ed56486aa509fd0ee2c69 (MD5)<br>Made availab

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Moraes, Maria Valdirene Araújo Rocha. "Morfologia e Sedimentologia do Litoral da Plataforma Continental Interna do Município de Acaraú – Ceará – Brasil." Universidade Federal de Pernambuco, 2012. https://repositorio.ufpe.br/handle/123456789/12135.

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Submitted by Eduarda Figueiredo (eduarda.ffigueiredo@ufpe.br) on 2015-03-12T13:21:58Z No. of bitstreams: 2 TESE_FINAL_VALDIRENE_FIGURAS.compressed.pdf: 8752849 bytes, checksum: ec81e2093e255f3aef6520bf9c3516f5 (MD5) license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5)<br>Made available in DSpace on 2015-03-12T13:21:58Z (GMT). No. of bitstreams: 2 TESE_FINAL_VALDIRENE_FIGURAS.compressed.pdf: 8752849 bytes, checksum: ec81e2093e255f3aef6520bf9c3516f5 (MD5) license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Previous issue date: 2012-04-19<br>CAPES<br>O

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Makkeasorn, Ammarin. "MULTISENSOR FUSION REMOTE SENSING TECHNOLOGY FOR ASSESSING MULTITEMPORAL RESPONSES IN ECOHYDROLOGICAL SYSTEMS." Doctoral diss., University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4068.

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Earth ecosystems and environment have been changing rapidly due to the advanced technologies and developments of humans. Impacts caused by human activities and developments are difficult to acquire for evaluations due to the rapid changes. Remote sensing (RS) technology has been implemented for environmental managements. A new and promising trend in remote sensing for environment is widely used to measure and monitor the earth environment and its changes. RS allows large-scaled measurements over a large region within a very short period of time. Continuous and repeatable measurements are the v

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LEITE, PAULA BEATRIZ CERQUEIRA. "CROP TYPE IDENTIFICATION BASED ON HIDDEN MARKOV MODELS USING MULTITEMPORAL IMAGE SEQUENCES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2008. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=12960@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Esta dissertação propõe uma metodologia baseada em Modelos de Markov Ocultos (Hidden Markov Models - HMM) para a classificação de culturas agrícolas, explorando informações de seqüências temporais de imagens dos sensores TM e ETM+/Landsat. O método reconhece os diferentes tipos de culturas agrícolas analisando os perfis espectrais em uma seqüência temporal de imagens de satélite de média resolução espacial ( aproximadamente 30m). Nesta abordagem, o comportamento temporal de cada classe de cultura é modelado por um HMM esp

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Corsini, Christianne Riquetti. "Análise multitemporal das mudanças de biomassa da vegetação secundária na Amazônia brasileira." Instituto Nacional de Pesquisas Espaciais (INPE), 2018. http://urlib.net/sid.inpe.br/mtc-m21c/2018/05.08.16.56.

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A regeneração da vegetação secundária em áreas desmatadas na Amazônia brasileira desempenha um papel importante no balanço de emissões, funcionando como um sumidouro dinâmico de carbono, e mitigando os impactos do desmatamento. O potencial para tal, entretanto, depende das taxas de crescimento desta vegetação no tempo, que vão refletir nos estoques de biomassa acumulado. Como esses estoques variam em relação aos estágios de regeneração e como a dinâmica da vegetação influencia nos padrões de cresciment, ainda é pouco compreendida. Para entender os padrões de acumulo de biomassa na vegetação se

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Cai, Zipan. "Multitemporal Satellite Data for Monitoring Urbanization in Nanjing from 2001 to 2016." Thesis, KTH, Geoinformatik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-214036.

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Along with the increasing rate of urbanization takes place in the world, the population keeps shifting from rural to urban areas. China, as the country of the largest population, has the highest urban population growth in Asia, as well as the world. However, the urbanization in China, in turn, is leading to a lot of social issues which reshape the living environment and cultural fabric. A variety of these kinds of social issues emphasize the challenges regarding a healthy and sustainable urban growth particularly in the reasonable planning of urban land use and land cover features. Therefore,

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MOREIRA, Elvis Bergue Mariz. "Variação espacial e multitemporal das temperaturas da superfície na cidade do Recife." Universidade Federal de Pernambuco, 2009. https://repositorio.ufpe.br/handle/123456789/6252.

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Made available in DSpace on 2014-06-12T18:03:13Z (GMT). No. of bitstreams: 2 arquivo3517_1.pdf: 1406435 bytes, checksum: 49e4d0db5c1d6c9e9456e2c38e4f7ba2 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2009<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>O município do Recife, nos últimos anos 30 anos, teve seu crescimento urbano intensificado, o que resulta substituição de áreas verdes por uma zona urbana edificada, impermeabilizando o solo e contribuindo para o aumento das temperaturas. Portanto mudanças locais cau

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Zanetti, Massimo. "Advanced methods for the analysis of multispectral and multitemporal remote sensing images." Doctoral thesis, Università degli studi di Trento, 2017. https://hdl.handle.net/11572/368741.

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The increasing availability of new generation remote sensing satellite multispectral images provides an unprecedented source of information for Earth observation and monitoring. Multispectral images can be now collected at high resolution covering (almost) all land surfaces with extremely short revisit time (up to a few days), making it possible the mapping of global changes. Extracting useful information from such huge amount of data requires a systematic use of automatic techiques in almost all applicative contexts. In some cases, the strict application requirements force the pratictioner to

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Zanetti, Massimo. "Advanced methods for the analysis of multispectral and multitemporal remote sensing images." Doctoral thesis, University of Trento, 2017. http://eprints-phd.biblio.unitn.it/2041/1/zanetti_phd-thesis.pdf.

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The increasing availability of new generation remote sensing satellite multispectral images provides an unprecedented source of information for Earth observation and monitoring. Multispectral images can be now collected at high resolution covering (almost) all land surfaces with extremely short revisit time (up to a few days), making it possible the mapping of global changes. Extracting useful information from such huge amount of data requires a systematic use of automatic techiques in almost all applicative contexts. In some cases, the strict application requirements force the pratictioner to

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Zhao, Weiying. "Multitemporal SAR images denoising and change detection : applications to Sentinel-1 data." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLT003/document.

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Le bruit de chatoiement (speckle) lié aux systèmes d'imagerie cohérente a des conséquences sur l'analyse et l'interprétation des images radar à synthèse d'ouverture (RSO). Pour corriger ce défaut, nous profitons de séries temporelles d'images RSO bien recalées. Nous améliorons le filtre adaptatif temporel non-local à l'aide de méthodes performantes de débruitage adaptatif et proposons un filtrage temporel adaptatif basé sur les patchs. Pour réduire le biais du débruitage, nous proposons une méthode originale, rapide et efficace de débruitage multitemporel. L'idée principale de l'approche propo

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Zhao, Weiying. "Multitemporal SAR images denoising and change detection : applications to Sentinel-1 data." Electronic Thesis or Diss., Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLT003.

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Le bruit de chatoiement (speckle) lié aux systèmes d'imagerie cohérente a des conséquences sur l'analyse et l'interprétation des images radar à synthèse d'ouverture (RSO). Pour corriger ce défaut, nous profitons de séries temporelles d'images RSO bien recalées. Nous améliorons le filtre adaptatif temporel non-local à l'aide de méthodes performantes de débruitage adaptatif et proposons un filtrage temporel adaptatif basé sur les patchs. Pour réduire le biais du débruitage, nous proposons une méthode originale, rapide et efficace de débruitage multitemporel. L'idée principale de l'approche propo

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