Results 31 to 40 of about 97,482 (247)

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

Applied 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, Zhen Zuo, Bei Sun, Peng Wu, Jiaju Zhang   +4 more
doaj   +1 more source

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

JGEET: 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, Husnul Kausarian, Wenang Anurogo   +2 more
doaj   +1 more source

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

Remote 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

Modular Autonomous Biosampler (MAB)- A prototype system for distinct biological size-class sampling and preservation [PDF]

, 2012
Presently, there is a community wide deficiency in our ability to collect and preserve multiple size-class biologic samples across a broad spectrum of oceanographic platforms (e.g. AUVs, ROVs, and Ocean Observing System Nodes).
Cary, Craig, Clarke, Don, Crees, Tristan, Jackson, Eric, Schmidt, Val E., Trembanis, Arthur   +5 more
core   +3 more sources

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

The 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, O. Zainon, U. Din, A. W. Rasid, Z. Mat Amin, R. Othman, A. S. Mardi, R. Mahmud, N. Sulaiman   +8 more
doaj   +1 more source

A Comparative Study of Different CNN Models and Transfer Learning Effect for Underwater Object Classification in Side-Scan Sonar Images

Remote Sensing, 2023
With the development of deep learning techniques, convolutional neural networks (CNN) are increasingly being used in image recognition for marine surveys and underwater object classification.
Xing Du, Yongfu Sun, Yupeng Song, Huifeng Sun, Lei Yang   +4 more
semanticscholar   +1 more source

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

Remote 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, Junxia Meng   +3 more
doaj   +1 more source

Improved Neural Network with Spatial Pyramid Pooling and Online Datasets Preprocessing for Underwater Target Detection Based on Side Scan Sonar Imagery

Remote Sensing, 2023
Fast and high-accuracy detection of underwater targets based on side scan sonar images has great potential for marine fisheries, underwater security, marine mapping, underwater engineering and other applications.
Jinrui Li, Libin Chen, Jian Shen, Xiongwu Xiao, Xiaosong Liu, Xin Sun, Xiao Wang, Deren Li   +7 more
semanticscholar   +1 more source

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

Egyptian 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, Nader H. El-Gendy, Suzan El-Gharabawy, Mahmoud Salah, Moataz Kh. Barakat   +4 more
doaj   +1 more source

High-frequency side-scan sonar fish reconnaissance by autonomous underwater vehicles [PDF]

, 2016
Author Posting. © The Author(s), 2016. This is the author's version of the work. It is posted here by permission of NRC Research Press for personal use, not for redistribution.
Gawarkiewicz, Glen G., Grothues, Thomas, Lynch, James F., Newhall, Arthur E., Vogel, Kaela S.   +4 more
core   +1 more source