Results 11 to 20 of about 3,529 (200)

Radar and Sonar Imaging and Processing [PDF]

open access: yesRemote Sensing, 2020
The 21 papers (from 61 submitted) published in the Special Issue “Radar and Sonar Imaging Processing” highlighted a variety of topics related to remote sensing with radar and sonar sensors. The sequence of articles included in the SI dealt with a broad profile of aspects of the use of radar and sonar images in line with the latest scientific trends ...
Andrzej Stateczny   +2 more
openaire   +2 more sources

Pre-trained Models for Sonar Images [PDF]

open access: yesOCEANS 2021: San Diego – Porto, 2021
Global Oceans 2021, Camera ready, 8 pages, 9 ...
Valdenegro-Toro, Matias   +2 more
openaire   +3 more sources

Side-scan Sonar Image De-noising Based on Bidimensional Empirical Mode Decomposition and Non-local Means [PDF]

open access: yesE3S Web of Conferences, 2020
In order to suppress the multiplicative specular noise in side-scan sonar images, a denoising method combining bidimensional empirical mode decomposition and non-local means algorithm is proposed.
Zhao Kun   +3 more
doaj   +1 more source

SID-TGAN: A Transformer-Based Generative Adversarial Network for Sonar Image Despeckling

open access: yesRemote Sensing, 2023
Sonar images are inherently affected by speckle noise, which degrades image quality and hinders image exploitation. Despeckling is an important pre-processing task that aims to remove such noise so as to improve the accuracy of analysis tasks on sonar ...
Xin Zhou   +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

Active Object Detection in Sonar Images [PDF]

open access: yesIEEE Access, 2020
Object detection in sonar images has always been a challenge due to the low resolution of sonar images and the strong noise existing in them. Although convolutional neural networks (CNNs) have been applied to detect objects in sonar images, successful detection is impeded by the lack of large annotated sonar images.
Longyu Jiang   +4 more
openaire   +3 more sources

On Correlating Sonar Images

open access: yesRobotics: Science and Systems I, 2005
This paper demonstrates that sonar images correlate badly because target geometry and image fringes correlate in different coordinate systems. It is shown that if the receiver is a line array, all point objects have the same image in a coordinate system with axes of range and the sine of target bearing (the (r, s) coordinate system).
Richard J. Rikoski   +2 more
openaire   +2 more sources

A blind contour‐aware quality model for sonar images

open access: yesIET Image Processing, 2022
Since the penetration depth of visible light is limited in muddy and dark deep marine environment, sonar imaging, which is independent of natural light, has been attracting much attention in underwater detections.
Weiling Chen   +3 more
doaj   +1 more source

Image Recognition Technology in Texture Identification of Marine Sediment Sonar Image

open access: yesComplexity, 2021
Through the recognition of ocean sediment sonar images, the texture in the image can be classified, which provides an important basis for the classification of ocean sediment.
Chao Sun, Li Wang, Nan Wang, Shaohua Jin
doaj   +1 more source

Research on sonar image few-shot classification based on deep learning

open access: yesXibei Gongye Daxue Xuebao, 2022
The underwater environment is complex and diverse, which makes it difficult to evolve traditional methods such as manually extracting features from blurred images.
CHEN Yule   +3 more
doaj   +1 more source

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