Results 21 to 30 of about 46,099 (288)
Real-time Model-based Image Color Correction for Underwater Robots
, 2020 Recently, a new underwater imaging formation model presented that the coefficients related to the direct and backscatter transmission signals are dependent on the type of water, camera specifications, water depth, and imaging range.
Li, Alberto Quattrini, Roznere, Monika
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International Journal of Hyperthermia, 2022 Purpose: Test objects for High Intensity Focused Ultrasound (HIFU) are required for the standardization and definition of treatment, Quality Assurance (QA), comparison of results between centers and calibration of devices.
S. Ambrogio +6 more
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A new 3-D modelling method to extract subtransect dimensions from underwater videos [PDF]
, 2012 Underwater video transects have become a common tool for quantitative analysis of the seafloor. However a major difficulty remains in the accurate determination of the area surveyed as underwater navigation can be unreliable and image scaling does not ...
Fillinger, Laura, Funke, Tobias
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Enhancing underwater images by fusion [PDF]
ACM SIGGRAPH 2011 Posters, 2011 When photographs are taken in underwater conditions the visibility of the scene is degraded significantly. This is due to the fact that the radiance of a point in the scene is directly influenced by the medium scattering. Practically, distant objects and part of the scene suffers from poor visibility, loss of contrast and faded colors.
Ancuti, Cosmin +3 more
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Quantum-inspired computational imaging [PDF]
, 2018 Computational imaging combines measurement and computational methods with the aim of forming images even when the measurement conditions are weak, few in number, or highly indirect.
Altmann, Yoann +5 more
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AlGaInN laser diode technology for GHz high-speed visible light communication through plastic optical fiber and water [PDF]
, 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
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Frontiers in Chemistry, 2020 Underwater superoleophobic microlens array (MLA) has been emerging as a crucial device for its wide applications in ocean optical imaging and sensing, endoscopic surgery, microfluidics and optofluidics, and other biomedical applications.
Hao Bian +5 more
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Enhancement of Underwater Video Mosaics for Post-Processing [PDF]
, 2007 Mosaics of seafloor created from still images or video acquired underwater have proved to be useful for construction of maps of forensic and archeological sites, species\u27 abundance estimates, habitat characterization, etc.
Gu, Fan, Rzhanov, Yuri
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Frontiers in Physics, 2022 How to effectively eliminate interference such as scattering, absorption, and attenuation is a hot topic of underwater photoelectric detection at present.
Qiang Song +13 more
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MATEC Web of Conferences, 2015 For the practical requirement of underwater safety protection, the conception of target precautionary area is put forward combined with the technical characteristic of imaging sonar and the analysis of small underwater target imaging feature.
Peng Pengfei, Yu Qian, Li Qiyuan
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