Results 1 to 10 of about 20,018 (145)

Estimation of the Acoustic Transducer Beam Aperture by Using the Geometric Backscattering Model for Side-Scan Sonar Systems [PDF]

open access: yesSensors, 2023
In this paper, we propose an algorithm for estimating the beam aperture of the acoustic transducers by using the geometric backscattering model for side-scan sonar systems. The geometric backscattering model is developed to describe the propagation paths
Van Duc Nguyen   +3 more
doaj   +2 more sources

A Side-Scan Sonar Image Synthesis Method Based on a Diffusion Model

open access: yesJournal of Marine Science and Engineering, 2023
The limited number and under-representation of side-scan sonar samples hinders the training of high-performance underwater object detection models. To address this issue, in this paper, we propose a diffusion model-based method to augment side-scan sonar
Zhiwei Yang   +4 more
doaj   +3 more sources

A Mosaic Method for Side-Scan Sonar Strip Images Based on Curvelet Transform and Resolution Constraints [PDF]

open access: yesSensors, 2021
Due to the complex marine environment, side-scan sonar signals are unstable, resulting in random non-rigid distortion in side-scan sonar strip images. To reduce the influence of resolution difference of common areas on strip image mosaicking, we proposed
Ning Zhang   +4 more
doaj   +2 more sources

Side-Scan Sonar Image Segmentation Based on Multi-Channel CNN for AUV Navigation [PDF]

open access: yesFrontiers in Neurorobotics, 2022
The AUV (Autonomous Underwater Vehicle) navigation process relies on the interaction of a variety of sensors. The side-scan sonar can collect underwater images and obtain semantic underwater environment information after processing, which will help ...
Dianyu Yang   +4 more
doaj   +2 more sources

A Gray Scale Correction Method for Side-Scan Sonar Images Based on Retinex

open access: yesRemote Sensing, 2019
When side-scan sonars collect data, sonar energy attenuation, the residual of time varying gain, beam patterns, angular responses, and sonar altitude variations occur, which lead to an uneven gray level in side-scan sonar images.
Xiufen Ye   +4 more
doaj   +3 more sources

DS-SIAUG: A Self-Training Approach Using a Disrupted Student Model for Enhanced Side-Scan Sonar Image Augmentation [PDF]

open access: yesSensors
Side-scan sonar is a principal technique for subsea target detection, where the quantity of sonar images of seabed targets significantly influences the accuracy of intelligent target recognition.
Chengyang Peng   +3 more
doaj   +2 more sources

AUV-Based Side-Scan Sonar Real-Time Method for Underwater-Target Detection

open access: yesJournal 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   +3 more sources

A Curvelet-Transform-Based Image Fusion Method Incorporating Side-Scan Sonar Image Features

open access: yesJournal of Marine Science and Engineering, 2023
Current methods of fusing side-scan sonar images fail to tackle the issues of shadow removal, preservation of information from adjacent strip images, and maintenance of image clarity and contrast. To address these deficiencies, a novel curvelet-transform-
Xinyang Zhao   +5 more
doaj   +3 more sources

High-Resolution Underwater Mapping Using Side-Scan Sonar. [PDF]

open access: yesPLoS ONE, 2016
The goal of this study is to generate high-resolution sea floor maps using a Side-Scan Sonar(SSS). This is achieved by explicitly taking into account the SSS operation as follows.
Antoni Burguera, Gabriel Oliver
doaj   +2 more sources

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   +3 more
doaj   +3 more sources

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