Results 271 to 280 of about 225,239 (334)

YOLOv3-DPFIN: A Dual-Path Feature Fusion Neural Network for Robust Real-Time Sonar Target Detection

IEEE Sensors Journal, 2020
Real-time detection of sonar target plays a vital role in the underwater research field. Conventional deep learning methods need large quantities of sonar images as the sample for model training, and they cannot ensure detection speed and feature ...
Wanzeng Kong, Jichen Hong, Mingyang Jia, Jinliang Yao, Weihua Cong, Hua Hu, Haigang Zhang   +6 more
semanticscholar   +1 more source

On the Use of Tiny Convolutional Neural Networks for Human-Expert-Level Classification Performance in Sonar Imagery

IEEE Journal of Oceanic Engineering, 2020
Efficient convolutional neural networks (CNNs) are designed and trained for an underwater target classification task with synthetic aperture sonar (SAS) imagery collected at sea. The main contribution is demonstrating that classification performance that
David P. Williams
semanticscholar   +1 more source

Degeneracy-Aware Imaging Sonar Simultaneous Localization and Mapping

IEEE Journal of Oceanic Engineering, 2020
High-frequency imaging sonar sensors have recently been applied to aid underwater vehicle localization, by providing frame-to-frame odometry measurements or loop closures over large timescales.
E. Westman, M. Kaess
semanticscholar   +1 more source

SONAR

2022
Maduro, Daniela Côrtes , Rebelo, Sérgio , Couceiro e Castro, João , Martins, Pedro   +3 more
openaire   +2 more sources

Active Sonar Image Classification Using Deep Convolutional Neural Network Evolved by Robust Comprehensive Grey Wolf Optimizer

Neural Processing Letters, 2023
Maryam Najibzadeh, A. Mahmoodzadeh, Mohammad Khishe   +2 more
semanticscholar   +1 more source

Sonar Systems and the Sonar Equation

2019
The purpose of this chapter is to introduce several basic concepts related to sonar systems and their analysis through the sonar equation. The components of a sonar system are described, including monostatic, bistatic, and distributed systems. Examples of how they can be used to localize objects of interest are presented for active and passive systems.
openaire   +1 more source

Sonar

2007
Robert D. Christ, Robert L. Wernli Sr
  +4 more sources

Sonar Image Target Detection Based on Adaptive Global Feature Enhancement Network

IEEE Sensors Journal, 2022
Zhen Wang, Shanwen Zhang, Wenzhun Huang, Jianxin Guo, Leya Zeng   +4 more
semanticscholar   +1 more source

SONAR

Proceedings of the 1996 ACM SIGMOD international conference on Management of data - SIGMOD '96, 1996
Takeshi Fukuda, Yasuhiko Morimoto, Shinichi Morishita, Takeshi Tokuyama   +3 more
openaire   +1 more source

Detection and segmentation of underwater objects from forward-looking sonar based on a modified Mask RCNN

Signal, Image and Video Processing, 2021
Zhimiao Fan, Weijie Xia, Xue Liu, Hailin Li   +3 more
semanticscholar   +1 more source