Results 1 to 10 of about 166,581 (177)
3D Object Recognition Based on Point Clouds in Underwater Environment with Global Descriptors: A Survey [PDF]
Sensors, 2019 This paper addresses the problem of object recognition from colorless 3D point clouds in underwater environments. It presents a performance comparison of state-of-the-art global descriptors, which are readily available as open source code.
Khadidja Himri, Pere Ridao, Nuno Gracias
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Passive depth estimation for a narrowband source using a single vector sensor in deep water [PDF]
JASA Express Letters, 2023 For a narrowband signal, an oscillating interference pattern is formed with a target's moving when receiving at the bottom of the sea. In this Letter, the interference pattern of a narrowband source is observed using a single vector sensor (SVS).
He Li +5 more
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Instrumentation in Underwater Environment [PDF]
, 2021 For underwater observation and exploration, the accurate measurement of few basic parameters is very important. During measurement process underwater noise plays an adverse effect, so noise measurement is essential to refine the result of other parameters. Sound, distance, and fish population measurements are common activities in oceanography.
M. M. Rashid, Raju Ahamed
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A Hybrid–Source Ranging Method in Shallow Water Using Modal Dispersion Based on Deep Learning
Journal of Marine Science and Engineering, 2023 The relationship between modal elevation angle and the relative arrival time between modes, derived from exploiting modal dispersion, provides source information that is less susceptible to environmental influences.
Tong Wang +5 more
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Estimating the parameters of the seabed using the spatial characteristics of ocean ambient noise [PDF]
MATEC Web of Conferences, 2019 When solving traditional underwater problems, the boundary condition is always used to calculate the sound field. In practice, however, it is hard to get the boundary conditions of the seabed. So geoacoustics inversion is needed to acquire the parameters
Li He, Guo Xiniyi, Ma Li, Song Guoli
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Detecting Square Markers in Underwater Environments [PDF]
Remote Sensing, 2019 Augmented reality can be deployed in various application domains, such as enhancing human vision, manufacturing, medicine, military, entertainment, and archeology. One of the least explored areas is the underwater environment. The main benefit of augmented reality in these environments is that it can help divers navigate to points of interest or ...
Jan Čejka +3 more
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Underwater Optical Image Restoration Method for Natural/Artificial Light
Journal of Marine Science and Engineering, 2023 This paper investigates the underwater optical image restoration method under the background of underwater target detection based on optical vision in AUVs.
Tianchi Zhang +3 more
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Autonomous Underwater Vehicle Path Planning Method of Soft Actor–Critic Based on Game Training
Journal of Marine Science and Engineering, 2022 This study aims to solve the issue of the safe navigation of autonomous underwater vehicles (AUVs) in an unknown underwater environment. AUV will encounter canyons, rocks, reefs, fish, and underwater vehicles that threaten its safety during underwater ...
Zhuo Wang +3 more
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Underwater Mixed Environments [PDF]
, 2015 In this chapter we give a systematic overview over Virtual Reality (VR) and Augmented Reality (AR) in underwater settings. Based on a novel classification scheme we illustrate the broad range of available and future implementation options. Whilst we find a variety of previous work on creating and using virtual underwater worlds, quite few examples of ...
von Lukas, Uwe Freiherr +3 more
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Virtual Underwater Datasets for Autonomous Inspections
Journal of Marine Science and Engineering, 2022 Underwater Vehicles have become more sophisticated, driven by the off-shore sector and the scientific community’s rapid advancements in underwater operations.
Ioannis Polymenis +3 more
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