Results 151 to 160 of about 88,236 (205)
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Side Scan Sonar

1984
The side scan sonar represents the only high-resolution seismic tool that provides coverage to both sides of a survey vessel’s track. It is a most practical and valuable tool for obtaining an acoustic picture of the sea floor. Operational side scan sonar systems were developed at the British National Institute of Oceanography following World War II, as
openaire   +1 more source

Digitising of side-scan sonar signals

Ultrasonics, 1976
Abstract A criterion for judging the adequacy of the digitisation rate of side-scanning sonar records has been established by inspection of the two-dimensional Fourier power spectrum of areas of record. The lowest digitising rate necessary to retain the information content in the signal is an important parameter in the efficient and economical ...
E. Whipp, D.A. Horne
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The geological interpretation of side-scan sonar

Reviews of Geophysics, 1990
Recent developments in side‐scan sonar technology have increased the potential for fundamental changes in our understanding of ocean basins. Developed in the late 1960s, “side looking” sonars have been widely used for the last two decades to obtain qualitative estimates of the acoustic properties of the materials of the seafloor. Modern developments in
H. Paul Johnson, Maryann Helferty
openaire   +3 more sources

Side Scan Sonar

2002
Side scan sonar is the most commonly used remote sensing tool for detecting shipwrecks, artifacts, and other cultural resources of archaeological interest.
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Side-Scan Sonar Image Classification With Zero-Shot and Style Transfer

IEEE Transactions on Instrumentation and Measurement
Side-scan sonar (SSS) has become an important tool for ocean exploration due to its practicality and reliability. Existing approaches for SSS image classification mainly rely on deep convolutional neural networks (DCNNs).
Zhongyu Bai   +3 more
semanticscholar   +1 more source

Side-Scan Sonar Underwater Target Detection: Combining the Diffusion Model With an Improved YOLOv7 Model

IEEE Journal of Oceanic Engineering
Side-scan sonar (SSS) plays a crucial role in underwater exploration. Autonomous analysis of SSS images is vital for detecting unknown targets in underwater environments. However, due to the complexity of the underwater environment, few highlighted areas
Xin Wen   +4 more
semanticscholar   +1 more source

A New Generation Side Scan Sonar

1993
While it is now possible, with multibeam echosounders, to obtain true bathymetric images of the sea floor up to ranges of 10 km 1,2, the best way of imaging the underwater relief with high resolution at lower ranges remains the side scan sonar 3. This 30 years old technique is however limited in several aspects that will be discussed later.
Pierre Alais   +3 more
openaire   +1 more source

Side scan sonar acoustic variability

OCEANS '88. 'A Partnership of Marine Interests'. Proceedings, 2003
The authors report the results of research on the inherent variability of side-scan sonar imagery to determine the magnitude and nature of image intensity fluctuations. Two experiments are presented in which a Klein 100-kHz system is operated under controlled conditions that remove all but purely instrumental and acoustic causes of image variability ...
J.W. Nicholson, J.S. Jaffe
openaire   +1 more source

Side scan sonar in oyster management

Oceans '02 MTS/IEEE, 2003
Oyster harvest from Mississippi reefs provide jobs for numerous fishermen and contribute substantially to the economy. Proper management of these reefs is vital for continued harvest. Enhancement management techniques (i.e. cultch planting and/or cultivation) should helps to ensure even greater future production.
D. Diaz   +4 more
openaire   +1 more source

Knowledge Distillation in YOLOX-ViT for Side-Scan Sonar Object Detection

arXiv.org
In this paper we present YOLOX-ViT, a novel object detection model, and investigate the efficacy of knowledge distillation for model size reduction without sacrificing performance.
Martin Aubard   +3 more
semanticscholar   +1 more source

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