Results 11 to 20 of about 46,099 (288)

Spaceborne underwater imaging [PDF]

open access: yes2011 IEEE International Conference on Computational Photography (ICCP), 2011
Shallow waters are very important for human and biological activity. Remote sensing of these areas is challenging, as it requires separation of ocean (or lake) bottom, water and atmospheric effects. In this paper we describe a concept and theory for spaceborne recovery of the underwater depth map, optical characteristics of the water and atmosphere ...
Yoav Y. Schechner   +2 more
openaire   +1 more source

Underwater hyperspectral imaging system for deep-sea exploration

open access: yesFrontiers in Physics, 2022
As a technology that combines spectral technology and imaging technology, hyperspectral imaging technology can obtain the spectral and spatial information about the targets effectively.
Qingsheng Xue   +3 more
doaj   +1 more source

A Novel Visual Measurement Method for Three-Dimensional Trajectory of Underwater Moving Objects Based on Deep Learning

open access: yesIEEE Access, 2020
For deep sea equipment suspension installation used in marine engineering, the multi-camera video motion analysis method is used to calculate the three-dimensional underwater trajectory of the underwater engineering structure.
Tao Liu   +4 more
doaj   +1 more source

Investigating the rate of turbidity impact on underwater spectral reflectance detection

open access: yesFrontiers in Marine Science, 2023
Spectral reflectance detection of the targeted object is considered a vital inherent optical property for its potential to provide abundant spectral information, which is crucial in underwater spectral imaging.
Hong Song   +7 more
doaj   +1 more source

Underwater Laser Imaging

open access: yesPolish Hyperbaric Research, 2021
Abstract Attenuation of light in the ocean ranges widely depending on the environment and is especially significant in optical remote sensing. Absorption of light by ocean water limits the range light can travel before being extinguished. The complex interactions of scattering light and ocean water often lead to distortions of the signal
Shelby Metoyer, Darek Bogucki
openaire   +1 more source

Experimental Study of Ghost Imaging in Underwater Environment

open access: yesSensors, 2022
Underwater imaging technique is a crucial tool for humans to develop, utilize, and protect the ocean. We comprehensively compare the imaging performance of twenty-four ghost imaging (GI) methods in the underwater environment.
Heng Wu   +4 more
doaj   +1 more source

Underwater computational ghost imaging

open access: yesOptics Express, 2017
Since the quality of underwater classical optical imaging is constrained by the absorptive and scattering nature for underwater environment, it is a challenging task to obtain long distance imaging. Ghost imaging is a second-order correlation imaging method using co-incidence measurement, which has the advantages of disturbance-free and wider angle of ...
Mingnan Le   +5 more
openaire   +2 more sources

A low-cost hyperspectral scanner for natural imaging and the study of animal colour vision above and under water [PDF]

open access: yes, 2019
Hyperspectral imaging is a widely used technology for industrial and scientific purposes, but the high cost and large size of commercial setups have made them impractical for most basic research.
Baden, T, Nevala, N E
core   +1 more source

An underwater image enhancement model for domain adaptation

open access: yesFrontiers in Marine Science, 2023
Underwater imaging has been suffering from color imbalance, low contrast, and low-light environment due to strong spectral attenuation of light in the water.
Xiwen Deng   +10 more
doaj   +1 more source

A holographic system for subsea recording and analysis of plankton and other marine particles [PDF]

open access: yes, 2003
We report here details of the design, development, initial testing and field-deployment of the HOLOMAR system for in-situ subsea holography and analysis of marine plankton and nonliving particles.
Alexander, S   +18 more
core   +1 more source

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