Results 21 to 30 of about 2,181,991 (197)

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

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   +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

DP-ViT: A Dual-Path Vision Transformer for Real-Time Sonar Target Detection

open access: yesRemote Sensing, 2022
Sonar image is the main way for underwater vehicles to obtain environmental information. The task of target detection in sonar images can distinguish multi-class targets in real time and accurately locate them, providing perception information for the ...
Yushan Sun   +5 more
doaj   +1 more source

DSA-SOLO: Double Split Attention SOLO for Side-Scan Sonar Target Segmentation

open access: yesApplied Sciences, 2022
Side-scan sonar systems play an important role in tasks such as marine terrain exploration and underwater target identification. Target segmentation of side-scan sonar images is an effective method of underwater target detection.
Honghe Huang   +4 more
doaj   +1 more source

Seabed Detection Using Application Of Image Side Scan Sonar Instrument (Acoustic Signal)

open access: yesJGEET: Journal of Geoscience, Engineering, Environment and Technology, 2017
The importance of knowing the method for seabed detection using side-scan sonar images with sonar instrument is a much-needed requirement right now. This kind of threat also requires frequent sonar surveys in such areas.
Muhammad Zainuddin Lubis   +2 more
doaj   +1 more source

Bottom Detection from Backscatter Data of Conventional Side Scan Sonars through 1D-UNet

open access: yesRemote Sensing, 2021
As widely applicated in many underwater research fields, conventional side-scan sonars require the sonar height to be at the seabed for geocoding seabed images.
Jun Yan, Junxia Meng, Jianhu Zhao
doaj   +1 more source

HULU SUNGAI PERAK BED SEDIMENT MAPPING USING UNDERWATER ACOUSTIC SONAR [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Development in acoustic survey techniques in particular side scan sonar have revolutionized the way we are able to image, map and understand the riverbed environment.
N. Arriafdi   +8 more
doaj   +1 more source

Marine geophysical surveys and interpretations on the ancient Eunostos harbor Area, Mediterranean Coast, Egypt

open access: yesEgyptian Journal of Petroleum, 2023
A marine geophysical survey was carried out over the ruins of the ancient Eunostos harbor, in front of the recent western harbor of Alexandria. The survey works aimed to study the seafloor and the subsurface layers over the survey area using side-scan ...
Amr Z. Hamouda   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy