Results 21 to 30 of about 20,086 (211)

A New Radiometric Correction Method for Side-Scan Sonar Images in Consideration of Seabed Sediment Variation

open access: yesRemote Sensing, 2017
Affected by the residual of time varying gain, beam patterns, angular responses, and sonar altitude variations, radiometric distortion degrades the quality of side-scan sonar images and seriously affects the application of these images. However, existing
Jianhu Zhao, Jun Yan, Hongmei Zhang
exaly   +3 more sources

Alluvial substrate mapping by automated texture segmentation of recreational-grade side scan sonar imagery. [PDF]

open access: yesPLoS ONE, 2018
Side scan sonar in low-cost 'fishfinder' systems has become popular in aquatic ecology and sedimentology for imaging submerged riverbed sediment at coverages and resolutions sufficient to relate bed texture to grain-size.
Daniel Hamill   +2 more
doaj   +2 more sources

Underwater Side-Scan Sonar Target Detection: YOLOv7 Model Combined with Attention Mechanism and Scaling Factor

open access: yesRemote Sensing
Side-scan sonar plays a crucial role in underwater exploration, and the autonomous detection of side-scan sonar images is vital for detecting unknown underwater environments. However, due to the complexity of the underwater environment, the presence of a
Xin Wen, , Feihu Zhang
exaly   +3 more sources

Sample Augmentation Method for Side-Scan Sonar Underwater Target Images Based on CBL-sinGAN

open access: yesJournal of Marine Science and Engineering
The scarcity and difficulty in acquiring Side-scan sonar target images limit the application of deep learning algorithms in Side-scan sonar target detection.
Chengyang Peng   +4 more
exaly   +3 more sources

A Small-Sample Target Detection Method of Side-Scan Sonar Based on CycleGAN and Improved YOLOv8

open access: yesApplied Sciences (Switzerland)
Because of their low cost and ease of deployment, side-scan sonars is one of the most widely used underwater survey instruments. However, the complexity of the marine environment and the difficulty in target acquisition limit the detection accuracy of ...
Jun Yan, Ming Liang
exaly   +3 more sources

MSF-DETR: A small target detection algorithm for sonar images based on spatial-frequency domain collaborative feature fusion. [PDF]

open access: yesPLoS ONE
Side-scan sonar imaging is essential for underwater target detection in marine exploration and engineering applications, yet small target detection faces significant challenges including limited frequency domain feature utilization, insufficient multi ...
Heng Zhao   +5 more
doaj   +2 more sources

Simulation of side-scan sonar [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1986
Acoustic remote sensing is becoming widespread in oceanographic measurement programs. Acoustic systems for such measurements include seafloor subbottom profilers, inverted echo sounders, tomography systems, and side-scan sonars. Numerical simulation of such systems can provide valuable information for system design and for analysis of data from an ...
Aubrey L. Anderson, Shufa Dwan
openaire   +2 more sources

The Impact of Side-Scan Sonar Resolution and Acoustic Shadow Phenomenon on the Quality of Sonar Imagery and Data Interpretation Capabilities

open access: yesRemote Sensing, 2023
Side-scan sonar is designed and used for a variety of survey work, in both military and civilian fields. These systems provide acoustic imageries that play a significant role in a variety of marine and inland applications.
Artur GrzÄ…dziel
doaj   +1 more source

Side-scan Sonar Image De-noising Based on Bidimensional Empirical Mode Decomposition and Non-local Means [PDF]

open access: yesE3S Web of Conferences, 2020
In order to suppress the multiplicative specular noise in side-scan sonar images, a denoising method combining bidimensional empirical mode decomposition and non-local means algorithm is proposed.
Zhao Kun   +3 more
doaj   +1 more source

Technical Design and Data Analysis of Autonomous Underwater Vehicle-Based Side-Scan Sonar Operations

open access: yesJournal of Marine Science and Engineering, 2023
In response to the absence of standardized work practices, work safety measures, efficient work procedures, and suitable line planning methods for exploring seabed topography using autonomous underwater vehicles (AUVs) equipped with side-scan sonar ...
Xinyang Zhao   +6 more
doaj   +1 more source

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