Results 31 to 40 of about 12,913 (258)

Sea Ice Automatic Extraction in the Liaodong Bay from Sentinel-2 Imagery Using Convolutional Neural Networks [PDF]

E3S Web of Conferences, 2020
Sea ice classification is one of the important tasks of sea ice monitoring. Accurate extraction of sea ice types is of great significance on sea ice conditions assessment, smooth navigation and safty marine operations.
Zherui Li, Huiwen Cai
doaj   +1 more source

A Two-Round Weight Voting Strategy-Based Ensemble Learning Method for Sea Ice Classification of Sentinel-1 Imagery

Remote Sensing, 2021
Sea ice information in the Arctic region is essential for climatic change monitoring and ship navigation. Although many sea ice classification methods have been put forward, the accuracy and usability of classification systems can still be improved.
Bin Wang, Linghui Xia, Dongmei Song, Zhongwei Li, Ning Wang   +4 more
doaj   +1 more source

Multisensor approach to automated classification of sea ice image data [PDF]

IEEE Transactions on Geoscience and Remote Sensing, 2005
A multisensor data fusion algorithm based on a multilayer neural network is presented for sea ice classification in the winter period. The algorithm uses European Remote Sensing (ERS), RADARSAT synthetic aperture radar (SAR), and low-resolution television camera images and image texture features.
Andrey V. Bogdanov, Stein Sandven, Ola M. Johannessen, Vitaly Y. Alexandrov, Leonid P. Bobylev   +4 more
openaire   +4 more sources

Classification of Sea Ice Types in the Arctic by Radar Echoes from SARAL/AltiKa

Remote Sensing, 2021
An important step in the sea ice freeboard to thickness conversion is the classification of sea ice types, since the ice type affects the snow depth and ice density.
Renée Mie Fredensborg Hansen, Eero Rinne, Henriette Skourup   +2 more
doaj   +1 more source

ARKTOS: An Intelligent System for SAR Sea Ice Image Classification [PDF]

IEEE Transactions on Geoscience and Remote Sensing, 2004
We present an intelligent system for satellite sea ice image analysis named Advanced Reasoning using Knowledge for Typing Of Sea ice (ARKTOS). ARKTOS performs fully automated analysis of synthetic aperture radar (SAR) sea ice images by mimicking the reasoning process of sea ice experts.
Soh, Leen-Kiat, Tsatsoulis, Costas, Gineris, Denise, Bertoia, Cheryl   +3 more
openaire   +3 more sources

Polar Sea Ice Monitoring Using HY-2A Scatterometer Measurements

Remote Sensing, 2016
A sea ice detection algorithm based on Fisher’s linear discriminant analysis is developed to segment sea ice and open water for the Ku-band scatterometer onboard the China’s Hai Yang 2A Satellite (HY-2A/SCAT).
Mingming Li, Chaofang Zhao, Yong Zhao, Zhixiong Wang, Lijian Shi   +4 more
doaj   +1 more source

Towards representation learning of radar altimeter waveforms for sea ice surface classification [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Satellite radar altimeters provide crucial insights into polar oceans and their sea ice cover, enabling the estimation of sea level, sea ice freeboard, and thickness.
L. Happ, L. Happ, S. Patil, S. Hendricks, R. Fellegara, L. Kaleschke, A. Gerndt, A. Gerndt   +7 more
doaj   +1 more source

Deep Semisupervised Teacher–Student Model Based on Label Propagation for Sea Ice Classification

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In this article, we propose a novelteacher–student-based label propagation deep semisupervised learning (TSLP-SSL) method for sea ice classification based on Sentinel-1 synthetic aperture radar data.
Salman Khaleghian, Habib Ullah, Thomas Kraemer, Torbjorn Eltoft, Andrea Marinoni   +4 more
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

Finding novel vulnerabilities of hypomorphic BRCA1 alleles

Molecular Oncology, EarlyView.
Synthetic lethality screens performed to identify novel vulnerabilities often model complete gene loss, thereby overlooking patient‐derived hypomorphic mutations. In this study, we have performed genome‐wide CRISPR screens on BRCA1 hypomorphic mutations, showing BRCA1I26A behaves like wild‐type, while BRCA1R1699Q mimics deficiency. Furthermore, we have
Anne Schreuder, Klaas de Lint, Hồ Mỹ Phúc Võ, Mariana M. Góis, Rosalie A. Kampen, Marta San Martin Alonso, Ilse Nootenboom, Veronica Garzero, Tiemen J. Wendel, Rob M. F. Wolthuis, Sylvie M. Noordermeer   +10 more
wiley   +1 more source