Results 21 to 30 of about 60,436 (303)
Ship Wake Component Detectability on Synthetic Aperture Radar (SAR) [PDF]
This study presents an extension to recent ship wake detectability models based on SAR image analysis with machine learning. In contrast to our previous works, we model the detectability of certain wake components individually. The underlying data set is obtained by extracting possible ship wake signatures from SAR imagery by collocation with Automatic
Tings, Björn +2 more
openaire +1 more source
Study on Kelvin wake scattering characteristics of turning ship
ObjectiveThis study focuses on the turning ship Kelvin wake and its electromagnetic scattering characteristics in order to provide a theoretical foundation for the detection and recognition of nonlinear ship wakes.
Jianan YAN, Ding NIE, Min ZHANG
doaj +1 more source
Specific Windows Search for Multi-Ship and Multi-Scale Wake Detection in SAR Images
Traditional ship identification systems have difficulty in identifying illegal or broken ships, but the wakes generated by ships can be used as a major feature for identification. However, multi-ship and multi-scale wake detection is also a big challenge.
Kaiyang Ding +5 more
doaj +1 more source
Detection Of Ship Wakes In Sar Imagery Using Cauchy Regularisation [PDF]
9 pages, 2 Figures and 2 ...
Yang, Tianqi +2 more
openaire +3 more sources
Ship Velocity Estimation From Ship Wakes Detected Using Convolutional Neural Networks [PDF]
Accurately tracking marine traffic considering security and commercial activities is still challenging despite its increasing global importance. Recently, space-borne synthetic aperture radar (SAR) is being considered to accurately monitor maritime traffic, and techniques to detect the position of ships and estimate their velocity have become essential.
Ki-mook Kang, Duk-jin Kim
openaire +2 more sources
A Modeling Method of Ship Acoustic Wake Echo Signal
It is an important way to study the ship wake by building simulation data through the acoustic wake echo signal model. At present, the scattering echo of a single bubble is ignored in the existing models. Therefore, a point scattering model for different
Changsheng YANG, Wenbo GOU, Hong LIANG
doaj +1 more source
A PREALIMINARY STUDY OF SHIP DETECTION FROM UAV IMAGES BASED ON COLOR SPACE CONVERSION AND IMAGE SEGMENTATION [PDF]
Ship detection is an inherent process supporting tasks such as fishery management, ship search, marine traffic monitoring and control, and helps in the prevention of illegal activities.
A. M. Klimkowska, I. Lee
doaj +1 more source
The detection of the wakes of moving ships in Synthetic Aperture Radar (SAR) imagery requires the presence of wake signatures, which are sufficiently distinctive from the ocean background.
Björn Tings
doaj +1 more source
Satellite remote-sensing provides a cost- and time-effective tool for ship monitoring at sea. Most existing approaches focused on extraction of ship locations using either hull or wake.
Yingfei Liu +3 more
doaj +1 more source
A New Automated Ship Wake Detector for Small and Go-Fast Ships in Sentinel-1 Imagery
In the field of maritime surveillance with satellite imagery, ship detection with Synthetic Aperture Radar (SAR) is largely successful with the exception of those cases where the target Radar Cross Section (RCS) results very low and hard to detect.
Elena Grosso, Raffaella Guida
doaj +1 more source

