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Open-set image recognition (OSR) aims to both classify known-class samples and identify unknown-class samples in the testing set, which supports robust classifiers in many realistic applications, such as autonomous driving, medical…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Jiayin Sun , Qiulei Dong

Open-Set Object Detection (OSOD) has emerged as a contemporary research direction to address the detection of unknown objects. Recently, few works have achieved remarkable performance in the OSOD task by employing contrastive clustering to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Hiran Sarkar , Vishal Chudasama , Naoyuki Onoe , Pankaj Wasnik , Vineeth N Balasubramanian

Perception is a key element for enabling intelligent autonomous navigation. Understanding the semantics of the surrounding environment and accurate vehicle pose estimation are essential capabilities for autonomous vehicles, including…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Mohamed Afifi , Mohamed ElHelw

Open-set recognition and adversarial defense study two key aspects of deep learning that are vital for real-world deployment. The objective of open-set recognition is to identify samples from open-set classes during testing, while…

Computer Vision and Pattern Recognition · Computer Science 2022-02-15 Rui Shao , Pramuditha Perera , Pong C. Yuen , Vishal M. Patel

Ship detection has been playing a significant role in the field of remote sensing for a long time but it is still full of challenges. The main limitations of traditional ship detection methods usually lie in the complexity of application…

Computer Vision and Pattern Recognition · Computer Science 2018-06-13 Xue Yang , Hao Sun , Kun Fu , Jirui Yang , Xian Sun , Menglong Yan , Zhi Guo

Deep learning object detection methods, like YOLOv5, are effective in identifying maritime vessels but often lack detailed information important for practical applications. In this paper, we addressed this problem by developing a technique…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Emre Gülsoylu , Paul Koch , Mert Yıldız , Manfred Constapel , André Peter Kelm

Detection of oil spills from satellite images is essential for both environmental surveillance and maritime safety. Traditional threshold-based methods frequently encounter performance degradation due to very high false alarm rates caused…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Pavan Kumar Yata , Pediredla Pradeep , Goli Himanish , Swathi M

Forward-looking sonar can capture high resolution images of underwater scenes, but their interpretation is complex. Generic object detection in such images has not been solved, specially in cases of small and unknown objects. In comparison,…

Computer Vision and Pattern Recognition · Computer Science 2017-09-11 Matias Valdenegro-Toro

High-resolution imagery plays a critical role in improving the performance of visual recognition tasks such as classification, detection, and segmentation. In many domains, including remote sensing and surveillance, low-resolution images…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Ch Muhammad Awais , Marco Reggiannini , Davide Moroni , Oktay Karakus

Deep metric learning aims to learn a deep embedding that can capture the semantic similarity of data points. Given the availability of massive training samples, deep metric learning is known to suffer from slow convergence due to a large…

Machine Learning · Computer Science 2019-12-05 Xinshao Wang , Yang Hua , Elyor Kodirov , Guosheng Hu , Neil M. Robertson

Progress has been achieved recently in object detection given advancements in deep learning. Nevertheless, such tools typically require a large amount of training data and significant manual effort to label objects. This limits their…

Robotics · Computer Science 2017-08-04 Chaitanya Mitash , Kostas E. Bekris , Abdeslam Boularias

Deep learning has emerged as an effective solution for solving the task of object detection in images but at the cost of requiring large labeled datasets. To mitigate this cost, semi-supervised object detection methods, which consist in…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Renaud Vandeghen , Gilles Louppe , Marc Van Droogenbroeck

Fully autonomous drones have been demonstrated to find lost or injured persons under strongly occluding forest canopy. Airborne Optical Sectioning (AOS), a novel synthetic aperture imaging technique, together with deep-learning-based…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Indrajit Kurmi , David C. Schedl , Oliver Bimber

Change detection is one of the fundamental applications of synthetic aperture radar (SAR) images. However, speckle noise presented in SAR images has a much negative effect on change detection. In this research, a novel two-phase…

Computer Vision and Pattern Recognition · Computer Science 2020-01-20 Xinzheng Zhang , Guo Liu , Ce Zhang , Peter M Atkinson , Xiaoheng Tan , Xin Jian , Xichuan Zhou , Yongming Li

In this work, we study different approaches to self-supervised pretraining of object detection models. We first design a general framework to learn a spatially consistent dense representation from an image, by randomly sampling and…

Computer Vision and Pattern Recognition · Computer Science 2022-08-12 Trung Dang , Simon Kornblith , Huy Thong Nguyen , Peter Chin , Maryam Khademi

Marine oil spills are urgent environmental hazards that demand rapid and reliable detection to minimise ecological and economic damage. While Synthetic Aperture Radar (SAR) imagery has become a key tool for large-scale oil spill monitoring,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Chenyang Lai , Shuaiyu Chen , Tianjin Huang , Siyang Song , Guangliang Cheng , Chunbo Luo , Zeyu Fu

This paper proposes a method that combines the style transfer technique and the learned descriptor to enhance the matching performances of underwater sonar images. In the field of underwater vision, sonar is currently the most effective…

Computer Vision and Pattern Recognition · Computer Science 2021-08-30 Xiaoteng Zhou , Changli Yu , Xin Yuan , Citong Luo

The limitations of existing Synthetic Aperture Radar (SAR) Automatic Target Recognition (ATR) methods lie in their confinement by the closed-environment assumption, hindering their effective and robust handling of unknown target categories…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Xiayang Xiao , Zhuoxuan Li , Ruyi Zhang , Jiacheng Chen , Haipeng Wang

Open-set semi-supervised object detection (OSSOD) task leverages practical open-set unlabeled datasets that comprise both in-distribution (ID) and out-of-distribution (OOD) instances for conducting semi-supervised object detection (SSOD).…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Zerun Wang , Ling Xiao , Liuyu Xiang , Zhaotian Weng , Toshihiko Yamasaki

Deep convolutional neural networks generally perform well in underwater object recognition tasks on both optical and sonar images. Many such methods require hundreds, if not thousands, of images per class to generalize well to unseen…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Mateusz Ochal , Jose Vazquez , Yvan Petillot , Sen Wang