Results 41 to 50 of about 499,791 (395)

Review of Underwater

open access: yesOpen Rivers Rethinking Water Place & Community, 2022
Underwater is surprising. Lois Hendrickson and Emily Beck, the exhibit’s curators, planned the exhibit after a visitor asked if the Wangensteen Historical Library of Biology and Medicine’s expansive collection included any materials related to algae.
openaire   +2 more sources

Color Balance and Fusion for Underwater Image Enhancement

open access: yesIEEE Transactions on Image Processing, 2018
We introduce an effective technique to enhance the images captured underwater and degraded due to the medium scattering and absorption. Our method is a single image approach that does not require specialized hardware or knowledge about the underwater ...
C. Ancuti   +3 more
semanticscholar   +1 more source

Lagrangian modelling of frazil ice in the ocean [PDF]

open access: yes, 2015
A new modelling framework using Lagrangian particle tracking has been developed to assess dynamic and thermodynamic effects of underwater frazil ice.
Matsumura, Yoshimasa, Ohshima, Kay I.
core   +1 more source

Underwater Acoustic Communication Channel Modeling using Deep Learning [PDF]

open access: yesarXiv, 2022
With the recent increase in the number of underwater activities, having effective underwater communication systems has become increasingly important. Underwater acoustic communication has been widely used but greatly impaired due to the complicated nature of the underwater environment. In a bid to better understand the underwater acoustic channel so as
arxiv  

Underwater wireless communication via TENG-generated Maxwell’s displacement current

open access: yesNature Communications, 2022
Underwater communication is a critical and challenging issue, on account of the complex underwater environment. This study introduces an underwater wireless communication approach via Maxwell’s displacement current generated by a triboelectric ...
Hongfa Zhao   +14 more
semanticscholar   +1 more source

AlGaInN laser diode technology for GHz high-speed visible light communication through plastic optical fiber and water [PDF]

open access: yes, 2016
AlGaInN ridge waveguide laser diodes are fabricated to achieve single-mode operation with optical powers up to 100 mW at ∼420  nm∼420  nm for visible free-space, underwater, and plastic optical fiber communication.
Czernecki, Robert   +12 more
core   +1 more source

Underwater Single Image Color Restoration Using Haze-Lines and a New Quantitative Dataset [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2018
Underwater images suffer from color distortion and low contrast, because light is attenuated while it propagates through water. Attenuation under water varies with wavelength, unlike terrestrial images where attenuation is assumed to be spectrally ...
Dana Berman   +3 more
semanticscholar   +1 more source

Underwater Target Detection Algorithm Based on Improved YOLOv5

open access: yesJournal of Marine Science and Engineering, 2022
Underwater target detection plays an important role in ocean exploration, to which the improvement of relevant technology is of much practical significance.
Fei Lei, Feifei Tang, Shuhan Li
semanticscholar   +1 more source

Identification of Risks in the Course of Managing the Deep Sea Archeological Projects Using Marine Robotics [PDF]

open access: yes, 2016
An analysis is conducted of the basic risks that occur when managing the projects of deep-sea archeological research. It is proposed to consider possible risks of such projects in the form of a general set of risks that contains subsets of the identified
Nadtoshy, A. (Anatoly)
core   +2 more sources

Evaluating the Potential of Augmented Reality Interfaces for Exploring Underwater Historical Sites

open access: yesIEEE Access, 2021
Underwater cultural heritage sites represent an attractive and exciting experience for diving tourists, even if often it is complicated for them to understand the significance and value of the remains that are usually strongly damaged and covered by the ...
Jan Cejka   +4 more
doaj   +1 more source

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