Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Vassilia Karathanassi"'
Publikováno v:
IEEE Access, Vol 10, Pp 33723-33741 (2022)
Change detection (CD) through Earth observation techniques can offer very significant information for monitoring tasks in a time-efficient manner. Very high-resolution (VHR) images can display objects in fine detail, thus making it possible to rapidl
Externí odkaz:
https://doaj.org/article/7d44c3721d78406ebc5b1b6a2cb81a93
Autor:
Vasileios Sitokonstantinou, Alkiviadis Koukos, Ilias Tsoumas, Nikolaos S Bartsotas, Charalampos Kontoes, Vassilia Karathanassi
Publikováno v:
PLoS ONE, Vol 18, Iss 3, p e0282364 (2023)
Crop phenology is crucial information for crop yield estimation and agricultural management. Traditionally, phenology has been observed from the ground; however Earth observation, weather and soil data have been used to capture the physiological grow
Externí odkaz:
https://doaj.org/article/43330b4b45564125a962cc75ca44e867
Autor:
Maria Kremezi, Viktoria Kristollari, Vassilia Karathanassi, Konstantinos Topouzelis, Pol Kolokoussis, Nicolo Taggio, Antonello Aiello, Giulio Ceriola, Enrico Barbone, Paolo Corradi
Publikováno v:
IEEE Access, Vol 9, Pp 61955-61971 (2021)
Hyperspectral PRISMA images are new and have not yet been evaluated for their ability to detect marine plastic litter. The hyperspectral PRISMA images have a fine spectral resolution, however, their spatial resolution is not high enough to enable the
Externí odkaz:
https://doaj.org/article/c30a72a3a3b04e82b029304aa65fa27e
Autor:
Maria Rousi, Vasileios Sitokonstantinou, Georgios Meditskos, Ioannis Papoutsis, Ilias Gialampoukidis, Alkiviadis Koukos, Vassilia Karathanassi, Thanassis Drivas, Stefanos Vrochidis, Charalampos Kontoes, Ioannis Kompatsiaris
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 529-552 (2021)
During the last decades, massive amounts of satellite images are becoming available that can be enriched with semantic annotations for the creation of value-added earth observation products. One challenge is to extract knowledge from the raw satellit
Externí odkaz:
https://doaj.org/article/a1bdba766a964e4d9e7230b55672c240
Autor:
Maria Kremezi, Vassilia Karathanassi
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 13, Pp 4809-4815 (2020)
Marine monitoring constitutes one of the main thematic areas of the Sentinel mission. The Sentinel 3 OLCI (S3) sensor provides satellite data for services relevant to the ocean and land. While the spatial resolution of S3 images (300 m) is suitable f
Externí odkaz:
https://doaj.org/article/5c796763107246dba6ff36bb57a24dd4
Publikováno v:
Water, Vol 14, Iss 24, p 4020 (2022)
This study investigates the potential of Sentinel-1 data in assisting flood modeling procedures. Two different synthetic aperture radar (SAR) processing methodologies, one simplified based on single-flood image thresholding and one automatic based on
Externí odkaz:
https://doaj.org/article/1983edccf7e940f6891fbf8752e52e57
Autor:
Milto Miltiadou, Vassilia Karathanassi, Athos Agapiou, Christos Theocharidis, Polychronis Kolokousis, Chris Danezis
Publikováno v:
Remote Sensing, Vol 14, Iss 15, p 3581 (2022)
Observing phenological changes are important for evaluating the natural regeneration process of forests, especially in Mediterranean areas where the regeneration of coniferous forests depends on seeds and the changes in blossoming time are influenced
Externí odkaz:
https://doaj.org/article/7db0c437af864d1fb05e1884b4e513e9
Autor:
Nicolò Taggio, Antonello Aiello, Giulio Ceriola, Maria Kremezi, Viktoria Kristollari, Polychronis Kolokoussis, Vassilia Karathanassi, Enrico Barbone
Publikováno v:
Remote Sensing, Vol 14, Iss 15, p 3606 (2022)
A significant amount of the produced solid waste reaching the oceans is made of plastics. The amount of plastic debris in the ocean and coastal areas is steadily increasing and is now a major global environmental issue. The monitoring of marine plast
Externí odkaz:
https://doaj.org/article/aee42bb87e134684a8b6c0d2410eb5c2
Autor:
Vassilis Andronis, Vassilia Karathanassi, Victoria Tsalapati, Polychronis Kolokoussis, Milto Miltiadou, Chistos Danezis
Publikováno v:
Remote Sensing, Vol 14, Iss 4, p 1010 (2022)
This study aims to investigate how alternations of the land surface temperature (LST) affects the normalized difference vegetation index (NDVI) in Paphos forest, Cyprus, using Landsat-5 and Landsat-8 imagery for the time periods 1993–2000 and 2013
Externí odkaz:
https://doaj.org/article/613a58557c244e9684004808f93f1d8b
Publikováno v:
Water, Vol 13, Iss 21, p 2943 (2021)
A new automatic, free and open-source python toolbox for the mapping of floodwater is presented. The output of the toolbox is a binary mask of floodwater at a user-specified time point within geographical boundaries. It exploits the high spatial (10m
Externí odkaz:
https://doaj.org/article/7bfde5b7ffea44d59adb580ead3a395e