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Huge imbalance of different scenes' sample numbers seriously reduces Synthetic Aperture Radar (SAR) ship detection accuracy. Thus, to solve this problem, this letter proposes a Balance Scene Learning Mechanism (BSLM) for offshore and…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 Tianwen Zhang , Xiaoling Zhang , Jun Shi , Shunjun Wei , Jianguo Wang , Jianwei Li , Hao Su , Yue Zhou

Ship detection in remote sensing imagery is a critical task with wide-ranging applications, such as maritime activity monitoring, shipping logistics, and environmental studies. However, existing methods often struggle to capture…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Jiahao Li , Jiancheng Pan , Yuze Sun , Xiaomeng Huang

Deep learning has driven significant progress in object detection using Synthetic Aperture Radar (SAR) imagery. Existing methods, while achieving promising results, often struggle to effectively integrate local and global information,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Mingxiang Cao , Weiying Xie , Jie Lei , Jiaqing Zhang , Daixun Li , Yunsong Li

Recently, methods based on deep learning have been successfully applied to ship detection for synthetic aperture radar (SAR) images. Despite the development of numerous ship detection methodologies, detecting small and coastal ships remains…

Computer Vision and Pattern Recognition · Computer Science 2024-01-25 Xiaolin Ma , Junkai Cheng , Aihua Li , Yuhua Zhang , Zhilong Lin

Synthetic aperture radar (SAR) imaging, celebrated for its high resolution, all-weather capability, and day-night operability, is indispensable for maritime applications. However, ship detection in SAR imagery faces significant challenges,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 Congxia Zhao , Xiongjun Fu , Jian Dong , Shen Cao , Chunyan Zhang

Deep learning methods have made significant progress in ship detection in synthetic aperture radar (SAR) images. The pretraining technique is usually adopted to support deep neural networks-based SAR ship detectors due to the scarce labeled…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Wei Bao , Meiyu Huang , Yaqin Zhang , Yao Xu , Xuejiao Liu , Xueshuang Xiang

Maritime surveillance is indispensable for civilian fields, including national maritime safeguarding, channel monitoring, and so on, in which synthetic aperture radar (SAR) ship target recognition is a crucial research field. The core…

Image and Video Processing · Electrical Eng. & Systems 2023-08-22 Chenwei Wang , Jifang Pei , Siyi Luo , Weibo Huo , Yulin Huang , Yin Zhang , Jianyu Yang

Recently, there has been an upsurge in the research on maritime vision, where a lot of works are influenced by the application of computer vision for Unmanned Surface Vehicles (USVs). Various sensor modalities such as camera, radar, and…

Computer Vision and Pattern Recognition · Computer Science 2023-11-21 Linh Trinh , Ali Anwar , Siegfried Mercelis

Ship detection has been an active and vital topic in the field of remote sensing for a decade, but it is still a challenging problem due to the large scale variations, the high aspect ratios, the intensive arrangement, and the background…

Computer Vision and Pattern Recognition · Computer Science 2020-07-27 Lingyi Liu , Yunpeng Bai , Ying Li

Detecting ships in synthetic aperture radar (SAR) images is challenging due to strong speckle noise, complex surroundings, and varying scales. This paper proposes MLDet, a multitask learning framework for SAR ship detection, consisting of…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Ming Zhao , Xin Zhang , André Kaup

Obstacle detection plays an important role in unmanned surface vehicles (USV). The USVs operate in highly diverse environments in which an obstacle may be a floating piece of wood, a scuba diver, a pier, or a part of a shoreline, which…

Computer Vision and Pattern Recognition · Computer Science 2015-03-09 Matej Kristan , Vildana Sulic , Stanislav Kovacic , Janez Pers

Rapid assessment after a natural disaster is key for prioritizing emergency resources. In the case of landslides, rapid assessment involves determining the extent of the area affected and measuring the size and location of individual…

Computer Vision and Pattern Recognition · Computer Science 2022-11-21 Vanessa Böhm , Wei Ji Leong , Ragini Bal Mahesh , Ioannis Prapas , Edoardo Nemni , Freddie Kalaitzis , Siddha Ganju , Raul Ramos-Pollan

Ship detection in Synthetic Aperture Radar (SAR) imagery is fundamentally challenged by inherent coherent speckle noise, complex coastal clutter, and the prevalence of small-scale targets. Conventional detectors, primarily designed for…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Fenghao Song , Shaojing Yang , Xi Zhou

This paper studies a practically meaningful ship detection problem from synthetic aperture radar (SAR) images by the neural network. We broadly extract different types of SAR image features and raise the intriguing question that whether…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Yuwen Deng , Donghai Guan , Yanyu Chen , Weiwei Yuan , Jiemin Ji , Mingqiang Wei

Synthetic Aperture Radar (SAR) plays a critical role in maritime surveillance, yet deep learning for SAR analysis is limited by the lack of pixel-level annotations. This paper explores how general-purpose vision foundation models can enable…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Islam Mansour , Francescopaolo Sica , Michael Schmitt

Infrared ship detection (IRSD) has received increasing attention in recent years due to the robustness of infrared images to adverse weather. However, a large number of false alarms may occur in complex scenes. To address these challenges,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-29 Chen Hu , Xiaogang Dong , Yian Huang Lele Wang , Liang Xu , Tian Pu , Zhenming Peng

Cost-effective localization methods for Autonomous Underwater Vehicle (AUV) navigation are key for ocean monitoring and data collection at high resolution in time and space. Algorithmic solutions suitable for real-time processing that…

Robotics · Computer Science 2025-03-12 Ellen Davenport , Khoa Nguyen , Junsu Jang , Clair Ma , Sean Fish , Luc Lenain , Florian Meyer

Coastal water autonomous boats rely on robust perception methods for obstacle detection and timely collision avoidance. The current state-of-the-art is based on deep segmentation networks trained on large datasets. Per-pixel ground truth…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Lojze Žust , Matej Kristan

Spaceborne synthetic aperture radar (SAR) can provide accurate images of the ocean surface roughness day-or-night in nearly all weather conditions, being an unique asset for many geophysical applications. Considering the huge amount of data…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Nicolae-Cătălin Ristea , Andrei Anghel , Mihai Datcu , Bertrand Chapron

The advancement of multi-channel synthetic aperture radar (SAR) system is considered as an upgraded technology for surveillance activities. SAR sensors onboard provide data for coastal ocean surveillance and a view of the oceanic surface…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Surya Prakash Tiwari , Sudhir Kumar Chaturvedi , Subhrangshu Adhikary , Saikat Banerjee , Sourav Basu
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