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相关论文: Optimizing ship detection efficiency in SAR images

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High-performance object detection relies on expensive convolutional networks to compute features, often leading to significant challenges in applications, e.g. those that require detecting objects from video streams in real time. The key to…

计算机视觉与模式识别 · 计算机科学 2018-04-17 Kai Chen , Jiaqi Wang , Shuo Yang , Xingcheng Zhang , Yuanjun Xiong , Chen Change Loy , Dahua Lin

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…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Surya Prakash Tiwari , Sudhir Kumar Chaturvedi , Subhrangshu Adhikary , Saikat Banerjee , Sourav Basu

Object detection systems based on the deep convolutional neural network (CNN) have recently made ground- breaking advances on several object detection benchmarks. While the features learned by these high-capacity neural networks are…

计算机视觉与模式识别 · 计算机科学 2016-01-15 Yuting Zhang , Kihyuk Sohn , Ruben Villegas , Gang Pan , Honglak Lee

Object detection and tracking in videos represent essential and computationally demanding building blocks for current and future visual perception systems. In order to reduce the efficiency gap between available methods and computational…

计算机视觉与模式识别 · 计算机科学 2022-07-27 Issa Mouawad , Francesca Odone

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…

计算机视觉与模式识别 · 计算机科学 2021-03-16 Wei Bao , Meiyu Huang , Yaqin Zhang , Yao Xu , Xuejiao Liu , Xueshuang Xiang

In this paper, we revisit the problem of classifying ships (maritime vessels) detected from overhead imagery. Despite the last decade of research on this very important and pertinent problem, it remains largely unsolved. One of the major…

计算机视觉与模式识别 · 计算机科学 2019-05-13 Chris M. Ward , Josh Harguess , Cameron Hilton

The ship-detection task in satellite imagery presents significant obstacles to even the most state of the art segmentation models due to lack of labelled dataset or approaches which are not able to generalize to unseen images. The most…

计算机视觉与模式识别 · 计算机科学 2019-10-29 Venkatesh R , Anand Metha

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,…

计算机视觉与模式识别 · 计算机科学 2025-01-13 Congxia Zhao , Xiongjun Fu , Jian Dong , Shen Cao , Chunyan Zhang

There is a proliferation in the number of satellites launched each year, resulting in downlinking of terabytes of data each day. The data received by ground stations is often unprocessed, making this an expensive process considering the…

计算机视觉与模式识别 · 计算机科学 2021-07-09 Martina Lofqvist , José Cano

Synthetic Aperture Radar (SAR) constitutes a fundamental asset for wide-areas monitoring with high-resolution requirements. The first SAR sensors have given rise to coarse coastal and maritime monitoring applications, including oil spill,…

图像与视频处理 · 电气工程与系统科学 2019-10-15 Leonardo De Laurentiis , Andrea Pomente , Fabio Del Frate , Giovanni Schiavon

Deep learning ship detection in satellite optical imagery suffers from false positive occurrences with clouds, landmasses, and man-made objects that interfere with correct classification of ships, typically limiting class accuracy scores to…

计算机视觉与模式识别 · 计算机科学 2020-12-03 Benjamin Smith

In this paper, we introduce an innovative method to improve the convergence speed and accuracy of object detection neural networks. Our approach, CONVERGE-FAST-AUXNET, is based on employing multiple, dependent loss metrics and weighting…

计算机视觉与模式识别 · 计算机科学 2018-08-15 Benjamin Schnieders , Karl Tuyls

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…

计算机视觉与模式识别 · 计算机科学 2015-03-09 Matej Kristan , Vildana Sulic , Stanislav Kovacic , Janez Pers

Given a sufficiently large training dataset, it is relatively easy to train a modern convolution neural network (CNN) as a required image classifier. However, for the task of fish classification and/or fish detection, if a CNN was trained…

计算机视觉与模式识别 · 计算机科学 2019-11-05 Dmitry A. Konovalov , Alzayat Saleh , Michael Bradley , Mangalam Sankupellay , Simone Marini , Marcus Sheaves

In the current salient object detection network, the most popular method is using U-shape structure. However, the massive number of parameters leads to more consumption of computing and storage resources which are not feasible to deploy on…

计算机视觉与模式识别 · 计算机科学 2021-12-21 Bin Zhang , Yang Wu , Xiaojing Zhang , Ming Ma

Ship detection from satellite imagery using Deep Learning (DL) is an indispensable solution for maritime surveillance. However, applying DL models trained on one dataset to others having differences in spatial resolution and radiometric…

计算机视觉与模式识别 · 计算机科学 2024-05-24 Tran-Vu La , Minh-Tan Pham , Marco Chini

Event cameras are ideal for object tracking applications due to their ability to capture fast-moving objects while mitigating latency and data redundancy. Existing event-based clustering and feature tracking approaches for surveillance and…

计算机视觉与模式识别 · 计算机科学 2022-02-10 Stephanie Aelmore , Richard C. Ordonez , Shibin Parameswaran , Justin Mauger

Fish stock assessment often involves manual fish counting by taxonomy specialists, which is both time-consuming and costly. We propose FishNet, an automated computer vision system for both taxonomic classification and fish size estimation…

计算机视觉与模式识别 · 计算机科学 2024-07-01 Moseli Mots'oehli , Anton Nikolaev , Wawan B. IGede , John Lynham , Peter J. Mous , Peter Sadowski

Accurate modeling of ship performance is crucial for the shipping industry to optimize fuel consumption and subsequently reduce emissions. However, predicting the speed-power relation in real-world conditions remains a challenge. In this…

机器学习 · 计算机科学 2022-12-27 Simon DeKeyser , Casimir Morobé , Malte Mittendorf

Automatic Identification System (AIS) messages are useful for tracking vessel activity across oceans worldwide using radio links and satellite transceivers. Such data plays a significant role in tracking vessel activity and mapping mobility…

机器学习 · 计算机科学 2022-08-23 Martha Dais Ferreira , Gabriel Spadon , Amilcar Soares , Stan Matwin