Results 21 to 30 of about 50,747 (268)
6th Underwater Acoustics Conference and Exhibition, 2021 State-of-the art deep learning models have shown remarkable performance on computer vision tasks like object classification or detection. These networks are typically trained on large-scale datasets of natural RGB images.
Yannik Steiniger +4 more
semanticscholar +1 more source
Current species protection does not serve its porpoise-Knowledge gaps on the impact of pressures on the Critically Endangered Baltic Proper harbour porpoise population, and future recommendations for its protection. [PDF]
Ecol EvolThe Critically Endangered Baltic Proper harbour porpoise population is likely still decreasing in size due to an exceeded limit for anthropogenic mortality, the high concentrations of contaminants in the Baltic Sea, reductions in prey availability, and increases in underwater noise.
Koschinski S +3 more
europepmc +2 more sources
Frontiers in Marine Science, 2023 The Rio Grande Rise (RGR) is an extensive structural high located in the South Atlantic Ocean, target of increasing exploratory interest. During the last decades, considerable attention has been given to its genesis, dynamic, regional tectonic, and ...
Paula Possamai Sergipe +4 more
doaj +1 more source
AUV-Based Side-Scan Sonar Real-Time Method for Underwater-Target Detection
Journal of Marine Science and Engineering, 2023 The limitations of underwater acoustic communications mean that the side-scan sonar data of an autonomous underwater vehicle (AUV) cannot be transmitted back and processed in real time, which means that targets cannot be detected in real time. To address
Yulin Tang +5 more
doaj +1 more source
Detection of Stones in Marine Habitats Combining Simultaneous Hydroacoustic Surveys
Geosciences, 2018 Exposed stones in sandy sublittoral environments are hotspots for marine biodiversity, especially for benthic communities. The detection of single stones is principally possible using sidescan-sonar (SSS) backscatter data.
Svenja Papenmeier, H. Christian Hass
doaj +1 more source
Geochemistry, Geophysics, Geosystems, 2022 Seafloor volcanic eruptions are difficult to directly observe due to lengthy eruption cycles and the remote location of mid‐ocean ridges. Volcanic eruptions in 2005–2006 at 9°50′N on the East Pacific Rise have been well documented, but the lava volume ...
Jyun‐Nai Wu +6 more
doaj +1 more source
A MODEL FOR THE SIMULATION OF SIDESCAN SONAR
Sonar Signal Processing 1995JM BELL, LM LINNETT
openaire +2 more sources
Remote Sensing, 2023 Detection, classification, and localization (DCL) techniques are being developed around the use of a phase-measuring sidescan sonar (PMSS) in very shallow waters.
Bryan McCormack, Mark Borrelli
doaj +1 more source
High-resolution marine magnetic surveys for searching underwater cultural resources
Annals of Geophysics, 2006 Recently two marine magnetic surveys, combined with the use of a multi-beam sonar (Kongsberg Marittime EM 300 multibeam: 30 KHz frequency echosounder for hydrographic purposes; acoustic lobe composed of 128 beams able to cover a 150° sector) a side-scan ...
S. Monti +6 more
doaj +1 more source
Side-scan sonar underwater target segmentation using the BHP-UNet
EURASIP Journal on Advances in Signal Processing, 2023 Although target detection algorithms based on deep learning have achieved good results in the detection of side-scan sonar underwater targets, their false and missed detection rates are high for multiple densely arranged and overlapping underwater ...
Yulin Tang +3 more
doaj +1 more source