Results 31 to 40 of about 1,913,452 (223)
Predicting LiDAR Data From Sonar Images [PDF]
IEEE Access, 2021 Sensors using ultrasonic sound have proven to provide accurate 3D perception in difficult environments where other modalities fail. Several industrial sectors need accurate and reliable sensing in these harsh conditions. The conventional LiDAR/camera approach in many state-of-the-art autonomous navigation methods is limited to environments with optimal
Niels Balemans +2 more
openaire +3 more sources
SensorsMapping corrosion depths along pipeline sections using guided-wave-based tomographic methods is a challenging task. Accurate defect sizing depends heavily on the precision of the forward model in guided wave tomography.
Emiel Hassefras +2 more
doaj +1 more source
High-Resolution Imaging Method of Deconvolution MIMO Sonar Based on Acoustic Homing Platform
水下无人系统学报To address the demand for precise imaging of the desired guidance part of a target by an undersea vehicle, this paper attempted to apply multiple-input multiple-output(MIMO) sonar imaging to the acoustic homing platform of an underwater vehicle for the ...
Zhiyuan CUI +4 more
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Robust Underwater Localization Using Acoustic Image Alignment for Autonomous Intervention Systems
IEEE Access, 2022 Acoustic imaging sonar can be used as important navigation sensors for underwater intervention systems as they consistently provide spatial information about the surrounding environment, even in limited visibility conditions.
Jisung Park, Jinwhan Kim
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Exploitation of SAS interferometric phase statistics for coherent change detection
Electronics Letters, 2023 Coherent change detection (CCD) takes advantage of the interferometric processing of synthetic aperture sonar (SAS) images and enables the detection of small scale changes to the scene between image pairs.
Emma Shouldice, Vincent Myers
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The Invincible (1758) site: an integrated geophysical assessment [PDF]
, 1998 Chirp sub-bottom profiler and repeat sidescan sonar imaging of the Invincible wreck site (1758) in the Solent (U.K.), interpretation, and implications for management of the ...
Quinn, Rory +3 more
core +1 more source
Remote Sensing, 2020 In recent years, widespread use of scanning sonars for acoustic imaging of the seabed surface can be observed. These types of sonars are mainly used with tripods or special booms, or are mounted onboard remotely operated or unmanned vehicles.
Artur Grządziel
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Self Calibration of a Sonar–Vision System for Underwater Vehicles: A New Method and a Dataset
Sensors, 2023 Monocular cameras and multibeam imaging sonars are common sensors of Unmanned Underwater Vehicles (UUV). In this paper, we propose a new method for calibrating a hybrid sonar–vision system.
Nicolas Pecheux +3 more
doaj +1 more source
Fish Segmentation in Sonar Images by Mask R-CNN on Feature Maps of Conditional Random Fields
Sensors, 2021 Imaging sonar systems are widely used for monitoring fish behavior in turbid or low ambient light waters. For analyzing fish behavior in sonar images, fish segmentation is often required.
Chin-Chun Chang +2 more
doaj +1 more source
Archaeological Prospection, EarlyView.ABSTRACT Medieval and early modern drowned villages in the intertidal zone of the Scheldt estuary (the Netherlands) constitute intriguing yet largely understudied components of north‐western Europe's underwater cultural heritage. Despite their high archaeological potential as time capsules of past settlement landscapes, research has remained limited ...
Jan Trachet +9 more
wiley +1 more source