Results 11 to 20 of about 5,631 (303)
Control system of ROV for underwater safety inspection and operation
Zhongguo Jianchuan Yanjiu, 2018 [Objectives] In order to achieve safety inspections for surface attachments on hulls, dams and underwater steel structures according to the requirements of removing attachments,a new Remotely Operated Vehicle(ROV) equipped with cables for underwater ...
ZHANG Guangyi +4 more
doaj +2 more sources
Structured light system for underwater inspection operations
OCEANS 2015 - Genova, 2015 In this work we propose the development of a stereo SLS system for underwater inspection operations. We demonstrate how to perform a SLS calibration both in dry and underwater environments using two different methods. The proposed methodology is able to achieve quite accurate results, lower than 1 mm in dry environments. We also display a 3D underwater
Lopes, Flávio +4 more
openaire +4 more sources
Research on Error Correction Technology in Underwater SINS/DVL Integrated Positioning and Navigation
Sensors, 2023 Underwater vehicles are key carriers for underwater inspection and operation tasks, and the successful implementation of these tasks depends on the positioning and navigation equipment with corresponding accuracy.
Jian Li +5 more
doaj +1 more source
Model based image restoration for underwater images
, 2022 Paper 87911FThe inspection of offshore parks, dam walls and other infrastructure under water is expensive and time consuming, because such constructions must be inspected manually by divers. Underwater buildings have to be examined visually to find small
Frühberger, P. +3 more
core +1 more source
Design and Modeling of an Experimental ROV with Six Degrees of Freedom
Drones, 2021 With the development of underwater technology, it is important to develop a wide range of autonomous and remotely operated underwater vehicles for various tasks.
Aleksey Kabanov +2 more
doaj +1 more source
Model predictive control of a hybrid autonomous underwater vehicle with experimental verification [PDF]
, 2014 In this work model predictive control is used to provide transit and hover capabilities for an autonomous underwater vehicle where the description of the system dynamics used include terms measured experimentally.
Bodles, Kenneth +11 more
core +1 more source
Development of Tactile Imaging for Underwater Structural Damage Detection
Sensors, 2019 Underwater structural damage inspection has mainly relied on diver-based visual inspection, and emerging technologies include the use of remotely operated vehicles (ROVs) for improved efficiency.
Xi Chen +5 more
doaj +1 more source
Subsea Pipeline Corrosion Estimation by Restoring and Enhancing Degraded Underwater Images
IEEE Access, 2018 Subsea pipeline corrosion is considered as a severe problem in offshore oil and gas industry. It directly affects the integrity of the pipeline which further leads to cracks and leakages.
Amjad Khan +4 more
doaj +1 more source
IEEE Access, 2023 This study addressed the autonomous planning of three-dimensional (3D) underwater inspection paths for autonomous underwater vehicles (AUVs) in marine ranching by integrating differential evolution and particle swarm optimization (PSO) algorithms. First,
Yijun Hu +6 more
doaj +1 more source
Modeling and inspection applications of a coastal distributed autonomous sensor network [PDF]
, 2012 Real time in-situ measurements are essential for monitoring and understanding physical and biochemical changes within ocean environments. Phenomena of interest usually display spatial and temporal dynamics that span different scales.
Joshua Leighton +15 more
core +1 more source