Results 11 to 20 of about 637,784 (341)
Kongzhi Yu Xinxi Jishu, 2023 Current defect detection techniques for hydraulic structures at hydropower stations are conducted by inspection robots or divers, facing challenges such as limited inspection methods and the impact of water currents.
ZHANG Yi +5 more
doaj +3 more sources
Multi-label Video Classification for Underwater Ship Inspection [PDF]
Oceans, 2023 Today ship hull inspection including the examination of the external coating, detection of defects, and other types of external degradation such as corrosion and marine growth is conducted underwater by means of Remotely Operated Vehicles (ROVs).
Md. Abulkalam Azad +4 more
semanticscholar +1 more source
An Autonomous Underwater Vehicle Simulation With Fuzzy Sensor Fusion for Pipeline Inspection
IEEE Sensors Journal, 2023 Underwater pipeline inspection is an important topic in off-shore subsea operations. Remotely operated vehicles (ROVs) can play an important role in multiple application areas including military, ocean science, aquaculture, shipping, and energy. However,
I-Chen Sang, W. Norris
semanticscholar +1 more source
Coordinated Formation Control of Multiple Autonomous Underwater Vehicles for Pipeline Inspection
International Journal of Advanced Robotic Systems, 2010 This paper addresses the control problem of inspecting underwater pipeline on the seabed, with coordinated multiple autonomous underwater vehicles in a formation. Based on the leader-follower strategy, the dedicated nonlinear path following controller is
Xianbo Xiang +2 more
doaj +2 more sources
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
Reliability Updating of Offshore Structures Subjected to Marine Growth
Energies, 2022 Marine growth is a known problem for oceanic infrastructure and has been shown to negatively impact the reliability of bottom-fixed or floating offshore structures submitted to fatigue or extreme loading.
Franck Schoefs, Thanh-Binh Tran
doaj +1 more source
Pose Detection and control of multiple unmanned underwater vehicles using optical feedback [PDF]
, 2014 This paper proposes pose detection and control algorithms in order to control the relative pose between two Unmanned Underwater Vehicles (UUVs) using optical feedback.
Barbaros Celikkol +5 more
core +3 more sources
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
Improving the energy efficiency of autonomous underwater vehicles by learning to model disturbances [PDF]
, 2013 Energy efficiency is one of the main challenges for long-term autonomy of AUVs (Autonomous Underwater Vehicles). We propose a novel approach for improving the energy efficiency of AUV controllers based on the ability to learn which external disturbances ...
Caldwell, DG, Kormushev, P
core +1 more source