Results 41 to 50 of about 2,218,138 (170)

Classification method of seabed sonar image substrate based on ELM-AdaBoost

Journal of Radiation Research and Applied Sciences
The results of sediment classification are affected by the measurement environment. The water depth has a significant impact on the sound propagation, and the acoustic characteristics will be different under different water depths.
Chenli Tan, Fei Yin, Tingchen Jiang
doaj   +1 more source

Accurate Mapping of an Extended Shell Bed Area in the North Sea with Multi-spectral Multibeam Backscatter Data [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The multibeam echosounder (MBES) has been widely used in seabed mapping, considering its ability to collect continuous and broad-scale seabed measurements efficiently.
Q. Bai, S. Mestdagh, A. Amiri-Simkooei, T. van Dijk, M. Snellen   +4 more
doaj   +1 more source

Scalable low‐cost seabed landers: the missing link for sustained, integrated, long‐term observations in dynamic shallow seas

Remote Sensing in Ecology and Conservation, EarlyView.
Seabed landers, when equipped with a range of biotic and abiotic sensors, offer a non‐invasive and cost‐effective solution for ecosystem‐scale monitoring of Essential Biodiversity Variables (EBVs) and Essential Ocean Variables (EOVs) in dynamic shallow seas.
Arienne Calonge, Roeland Develter, Carlota Muñiz, Clea Parcerisas, Jan Reubens, Wieter Boone, Klaas Deneudt, Elisabeth Debusschere   +7 more
wiley   +1 more source

Visual features extraction and types classification of seabed sediments

, 2014
The purpose of this research is to define and extract the visual features of the seabed sediments to improve the autonomous ability of a underwater vehicle while implementing exploring missions.
Yan Huang, Huang Y(黄琰), Tian Y(田宇), Liya Ge, Li Y(李岩), Xia, Chunlei, Chunlei Xia, Yu Tian, Ge LY(葛利亚), Yan Li   +9 more
core   +1 more source

Studies into the detection of buried objects (particularly optical fibres) in saturated sediment. Part 1: background

, 2007
Damaged submarine fibre optic telecommunication cables have, in the past, beenlocated by the use of remotely operated underwater vehicles. These are fitted withsensors which have the capability to detect the metal shielding in the metallic coresused in ...
Leighton, T.G., Evans, R.C.P.
core   +1 more source

Picking Up the Pieces—Harmonising and Collating Seabed Substrate Data for European Maritime Areas

Geosciences, 2019
The poor access to data on the marine environment is a handicap to government decision-making, a barrier to scientific understanding and an obstacle to economic growth.
Anu Marii Kaskela, Aarno Tapio Kotilainen, Ulla Alanen, Rhys Cooper, Sophie Green, Janine Guinan, Sytze van Heteren, Susanna Kihlman, Vera Van Lancker, Alan Stevenson, the EMODnet Geology Partners   +10 more
doaj   +1 more source

Discovery and Fine‐Scale Mapping of Hadal Xenophyophore Habitat in the Nova Canton Trough, Central Pacific Ocean

Remote Sensing in Ecology and Conservation, EarlyView.
Discovery and fine‐scale mapping of a hadal xenophyophore field: submersible video transects and photogrammetry enable semi‐automated delineation of xenophyophores, revealing their abundance, spatial organisation, structural complexity and contribution to habitat heterogeneity at ~8000 m depth.
Denise J. B. Swanborn, Joana Gafeira, Megan Cundy, Daniel C. Bates, Heather A. Stewart, Alan J. Jamieson   +5 more
wiley   +1 more source

Toward Enhanced Safety Management in Wave Energy Power Plant Construction Projects: FMEA and HAZOP Combination

Safety Science and Technology, EarlyView.
Consolidated FMEA–HAZOP safety management framework for WEC construction projects. ABSTRACT This study presents an advanced safety management framework for “Wave Energy Converter” (WEC) projects, addressing the inherent uncertainty, technological complexity, and environmental exposure of offshore renewable energy systems.
Panagiotis K. Marhavilas, Konstantinos Douitsis, Nick Delianidis, Stefanos Keskinis, Georgios Charalampos Kafoutis   +4 more
wiley   +1 more source

Acoustic Sediment Classification Using High-Frequency (400 kHz) Multibeam Data in Pari Water of Seribu Island, Indonesia

Ilmu Kelautan
Seafloor classification is essential for understanding sediment distribution, marine habitat characteristics, and resource management. Therefore, this study aimed to classify seafloor sediment in the Pari water, Indonesia using high-frequency (400 kHz ...
Dadang Handoko, Henry Munandar Manik, Totok Hestirianoto, Karlisa Priandana, Rozaimi Che Hasan   +4 more
doaj   +1 more source

A Precise Semantic Segmentation Model for Seabed Sediment Detection Using YOLO-C

Journal of Marine Science and Engineering, 2023
Semantic segmentation methods have been successfully applied in seabed sediment detection. However, fast models like YOLO only produce rough segmentation boundaries (rectangles), while precise models like U-Net require too much time.
Xin Chen, Peng Shi, Yi Hu
doaj   +1 more source