Results 1 to 10 of about 2,798,162 (216)

Artificial Reef Detection Method for Multibeam Sonar Imagery Based on Convolutional Neural Networks

open access: yesRemote Sensing, 2022
Artificial reef detection in multibeam sonar images is an important measure for the monitoring and assessment of biological resources in marine ranching.
Zhipeng Dong   +5 more
doaj   +3 more sources

Target Detection of Forward-Looking Sonar Image Based on Improved YOLOv5

open access: yesIEEE Access, 2022
Forward-looking sonar is a commonly used underwater detection device at present, but the detection accuracy is poor due to the complex underwater environment, small target highlight area and fuzzy feature details. Therefore, this paper proposes a forward
Haoting Zhang   +4 more
doaj   +3 more sources

A Texture Feature Removal Network for Sonar Image Classification and Detection

open access: yesRemote Sensing, 2023
Deep neural network (DNN) was applied in sonar image target recognition tasks, but it is very difficult to obtain enough sonar images that contain a target; as a result, the direct use of a small amount of data to train a DNN will cause overfitting and ...
Chuanlong Li   +3 more
doaj   +3 more sources

Lightweight Underwater Sonar Object Detection via RGB-Guided Heterogeneous Distillation [PDF]

open access: yesSensors
Underwater object detection is a fundamental task in underwater sensing and is generally approached using either optical or sonar sensors. Although optical imaging provides rich semantic information, it is highly susceptible to water turbidity and ...
Qianqian Qiao   +4 more
doaj   +2 more sources

Passive Sonar Target Detection Using Statistical Classifier and Adaptive Threshold

open access: yesApplied Sciences, 2018
This paper presents the results of an experimental investigation about target detecting with passive sonar in Persian Gulf. Detecting propagated sounds in the water is one of the basic challenges of the researchers in sonar field.
Hamed Komari Alaie, Hassan Farsi
doaj   +3 more sources

Review on Anti-UUV Detection Sonar System

open access: yes水下无人系统学报, 2022
Unmanned undersea vehicles(UUV) can perform varieties of underwater special operation missions. In recent years, enemy UUVs have posed serious threats to the safety of key equipment in ports and coastal areas.
Tong-yu LAN, Ben-qi LIU, Liang LIU
doaj   +1 more source

SDNet: Image‐based sonar detection network for multi‐scale objects

open access: yesIET Image Processing, 2023
Autonomous Underwater Vehicle (AUV) carrying sonar for object detection has become one of the main ways of ocean exploration. However, object detection in sonar images always faces the problems of balancing detection accuracy and efficiency. To this end,
Pengfei Shi   +4 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

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   +1 more source

Sonar Image Target Detection Based on Style Transfer Learning and Random Shape of Noise under Zero Shot Target

open access: yesRemote Sensing, 2022
With the development of sonar technology, sonar images have been widely used to detect targets. However, there are many challenges for sonar images in terms of object detection.
Jier Xi, Xiufen Ye, Chuanlong Li
doaj   +1 more source

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