The IPATCH System for Maritime Surveillance and Piracy Threat Classification

Author(s):  
Maria Andersson ◽  
Ronnie Johansson ◽  
Karl-Goran Stenborg ◽  
Robert Forsgren ◽  
Thomas Cane ◽  
...  
2021 ◽  
Vol 13 (10) ◽  
pp. 1955
Author(s):  
Maria Daniela Graziano ◽  
Alfredo Renga

The recognition of wakes generated by dark vessels is a tremendous and interesting challenge in the field of maritime surveillance by Synthetic Aperture Radar (SAR) images. The paper aims at assessing the detection performance in different scenarios by processing Sentinel-1 SAR images along with ground truth data. Results confirm that the Radon-based approach is an effective technique for wake-based detection of dark vessels, and they lead to a deeper understanding of the effects of different sea and wind conditions. In general, the best applicative scenario is a marine image characterized by homogeneous sea clutter; the presence of natural surface film or strong transition from low wind speed areas to more windy zones worsen the detection performance. Nonetheless, the proposed approach features dark vessel detection capabilities by identifying their wakes, without any a priori knowledge of their positions.


Author(s):  
Simon MCKENZIE

Abstract The development of uncrewed maritime vehicles [UMVs] has the potential to increase the scale of military maritime surveillance in the exclusive economic zones of foreign coastal states. This paper considers the legal implications of the expanded use of UMVs for this purpose. It shows how features of the legal regime—namely how its application depends on determining the intent of a vessel's operation (to distinguish marine scientific research from military surveillance), as well the obligation to have due regard—have a “dynamic” quality that will pose a challenge to UMVs operated by autonomous technology. The legal obligations will require equipping UMVs with the capacity to communicate something about their identity, the purpose of their mission, and to be able to have some capacity to be responsive to the economic and environmental interests of the coastal state.


2021 ◽  
Author(s):  
Ramkumar Raghu ◽  
Nanditha Unnikrishnan ◽  
B Sree Kalyani ◽  
R Rajesh ◽  
Reena Sharma

Author(s):  
Xiuju Fu ◽  
Zhe Xiao ◽  
Haiyan Xu ◽  
Vasundhara Jayaraman ◽  
Nasri Bin Othman ◽  
...  

2020 ◽  
Vol 70 (1) ◽  
pp. 66-71 ◽  
Author(s):  
Manvendra Singh ◽  
Sudhir Khare ◽  
Brajesh Kumar Kaushik

Surveillance of maritime domain is absolutely vital to ensure an appropriate response against any adverse situation relating to maritime safety or security. Electro-optic search and track (EOST) system plays a vital role by providing independent search and track of potential targets in marine environment. EOST provides real-time images of objects with details, required to neutralise threats. At long range, detection and tracking capability of EOST degrades due to uncertainty in target signatures under cluttered scenario. Image quality can be improved by using suitable sensors and enhancement using the target/background signature knowledge. Robust tracking of object can be achieved by optimising the performance parameters of tracker. In the present work, improvement in the performance of EOST subsystems such as sensor, video processor and video tracker are discussed. To improve EOST performance in terms of detection and tracking, sensor selection criterion and various real time image processing techniques and their selection criteria for maritime applications have been also discussed. Resultant improvement in the quality of image recorded under marine environment has been presented.


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