Results 161 to 170 of about 88,236 (205)

SI-GAT: Enhancing Side-Scan Sonar Image Classification Based on Graph Structure

IEEE Sensors Journal
Underwater target classification based on side-scan sonar (SSS) imagery holds significant military and civilian applications. However, challenges, such as low sonar image resolution and limited target features, pose substantial difficulties in the ...
Can Lei, Huigang Wang, J. Lei
semanticscholar   +1 more source

Development of a side scan sonar module for the underwater simulator

2017 14th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI), 2017
In this paper, we implemented the Side Scan Sonar (SSS) module for the UnderWater Simulator (UWSim) [1], specifically focusing on sonar image simulation. To obtain the simulated SSS images, we adopted the Lambertian diffusion model [2]. The beam profile was modeled using a pair of sine wave functions.
Dae-Hyeon Gwon, Joowan Kim, Moon Hwan Kim, Ho Gyu Park, Tae Yeong Kim, Ayoung Kim   +5 more
openaire   +1 more source

S3Simulator: A benchmarking Side Scan Sonar Simulator dataset for Underwater Image Analysis

International Conference on Pattern Recognition
Acoustic sonar imaging systems are widely used for underwater surveillance in both civilian and military sectors. However, acquiring high-quality sonar datasets for training Artificial Intelligence (AI) models confronts challenges such as limited data ...
K. Basha, Athira Nambiar
semanticscholar   +1 more source

New Capabilities for Side-Scan Sonar

1998
Now that side-scan sonar has become a generally accepted remote sensing tool, technical developments are proceeding at a rapid pace. Until recently, basic systems primarily used straightforward analog signal processing, and digital techniques were confined to recorder functions such as stepping motor drivers.
openaire   +1 more source

Segmentation of Side Scan Sonar Images on AUV

2019 IEEE Underwater Technology (UT), 2019
Side scan sonar is an active sonar. It uses seafloor backscattering to obtain the topographic information of the seabed, and constructs seabed topographic image information, which is the basis of seabed imaging. For AUV equipped with side scan sonar, the interpretation of sonar images is beneficial to enhance their autonomy.
Fei Yu, Yuemei Zhu, Qi Wang, Kaige Li, Meihan Wu, Guangliang Li, Tianhong Yan, Bo He   +7 more
openaire   +1 more source

Processing of the information from side-scan sonar

SPIE Proceedings, 2016
The kinetic model, describing sound propagation in a randomly inhomogeneous medium with diffuse reflection by Lambert's cosine law on the bottom surface, is considered. Based on it the inverse problem of bottom scattering reconstruction is formulated.
Evgeny O. Kovalenko, Andrey A. Sushchenko, Igor V. Prokhorov   +2 more
openaire   +1 more source

Side Scan Sonar Object Classification Algorithms

Proceedings of the 6th International Symposium on Unmanned Untethered Submersible Technology,, 2005
Autonomous underwater vehicles require the capability to understand their environment. This understanding, coupled with the operational goals of the vehicle, determines the subsequent actions of the vehicle. Environmental understanding is realized through the vehicle's sensors and a priori knowledge. This paper focuses on our investigation of automatic
M.F. Doherty, J.G. Landowski, P.F. Maynard, G.T. Uber, D.W. Fries, F.H. Maltz   +5 more
openaire   +1 more source

Unsupervised Terrain Reconstruction From Side-Scan Sonar Constrained to the Imaging Mechanism

IEEE Transactions on Geoscience and Remote Sensing
To meet the demands of marine scientific research and ocean engineering construction for cost-effective, high-resolution, and large-scale acquisition of seafloor topography, this study proposes an unsupervised terrain reconstruction technique for side ...
Chao Huang, Hongmei Zhang, Jianhu Zhao, Yongcan Yu, Xi Zhao   +4 more
semanticscholar   +1 more source

Classification and mosaicking of side scan sonar image

OCEANS 2017 - Aberdeen, 2017
As an underwater detection sensor, side-scan sonar plays an important role in marine survey, mineral exploration, underwater archaeology and so on. During the use of side-scan sonar, classifiication and mosaicking of collected images is essential in most cases. There are two main contributions in our work.
Qixin Sha, Yan Song, Jia Guo, Chen Feng, Guangliang Li, Bo He, Tianhong Yan   +6 more
openaire   +1 more source

Historical development of side scan sonar

The Journal of the Acoustical Society of America, 2017
The seabed mapping side scan sonar, conceived and developed in the 1950s at the U.S. Navy Mine Defense Laboratory (USNMDL) [Commander and Sternlicht, J. Acoust. Soc. Am. 137, 2307 (2015)], was inspired by the Royal Navy ASDIC Type-162, a late-WWII hull mounted side-looking sonar capable of recording the silhouettes of bottomed U-boats. The commissioned
openaire   +1 more source