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Cosmological simulations are an important method for investigating the evolution of the Universe. In order to gain further insight into the processes of structure formation, it is necessary to identify isolated bound objects within the…

Cosmology and Nongalactic Astrophysics · Physics 2025-04-29 Minxing Li , Yun Wang , Ping He

This study presents a novel fault diagnosis model for urban rail transit systems based on Wavelet Transform Residual Neural Network (WT-ResNet). The model integrates the advantages of wavelet transform for feature extraction and ResNet for…

Information Retrieval · Computer Science 2024-06-11 Zuyu Cheng , Zhengcai Zhao , Yixiao Wang , Wentao Guo , Yufei Wang , Xiang Gao

Object detection has been a building block in computer vision. Though considerable progress has been made, there still exist challenges for objects with small size, arbitrary direction, and dense distribution. Apart from natural images,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-13 Xue Yang , Jirui Yang , Junchi Yan , Yue Zhang , Tengfei Zhang , Zhi Guo , Sun Xian , Kun Fu

Since convolutional neural network(CNN)models emerged,several tasks in computer vision have actively deployed CNN models for feature extraction. However,the conventional CNN models have a high computational cost and require high memory…

Computer Vision and Pattern Recognition · Computer Science 2017-07-18 Youngwan Lee , Byeonghak Yim , Huien Kim , Eunsoo Park , Xuenan Cui , Taekang Woo , Hakil Kim

Analyzing the ocean acoustic environment is a tricky task. Background noise and variable channel transmission environment make it complicated to implement accurate ship-radiated noise recognition. Existing recognition systems are weak in…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-20 Yuan Xie , Jiawei Ren , Ji Xu

The rapid advancement of image inpainting tools, especially those aimed at removing artifacts, has made digital image manipulation alarmingly accessible. This paper proposes several innovative ideas for detecting inpainting forgeries based…

Computer Vision and Pattern Recognition · Computer Science 2024-09-26 Barglazan Adrian-Alin , Brad Remus

The analysis of gravitational-wave (GW) signals is one of the most challenging application areas of signal processing. Wavelet transforms are specially helpful in detecting and analyzing GW transients and several analysis pipelines are…

General Relativity and Quantum Cosmology · Physics 2024-05-27 Andrea Virtuoso , Edoardo Milotti

Ship detection for navigation is a fundamental perception task in intelligent waterway transportation systems. However, existing public ship detection datasets remain limited in terms of scale, the proportion of small-object instances, and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Junxiong Liang , Mengwei Bao , Tianxiang Wang , Xinggang Wang , An-An Liu , Ryan Wen Liu

Availability of domain-specific datasets is an essential problem in object detection. Maritime vessel detection of inshore and offshore datasets is no exception, there is a limited number of studies addressing this need. For that reason, we…

Computer Vision and Pattern Recognition · Computer Science 2021-02-12 Bogdan Iancu , Valentin Soloviev , Luca Zelioli , Johan Lilius

In deep networks, the lost data details significantly degrade the performances of image segmentation. In this paper, we propose to apply Discrete Wavelet Transform (DWT) to extract the data details during feature map down-sampling, and…

Computer Vision and Pattern Recognition · Computer Science 2020-06-01 Qiufu Li , Linlin Shen

With the rapid evolution of autonomous driving technology and intelligent transportation systems, semantic segmentation has become increasingly critical. Precise interpretation and analysis of real-world environments are indispensable for…

Image and Video Processing · Electrical Eng. & Systems 2025-05-29 Zhiyuan Li , Yi Chang , Yuan Wu

Recent multi-object tracking (MOT) systems have leveraged highly accurate object detectors; however, training such detectors requires large amounts of labeled data. Although such data is widely available for humans and vehicles, it is…

Computer Vision and Pattern Recognition · Computer Science 2022-11-09 Travis Mandel , Mark Jimenez , Emily Risley , Taishi Nammoto , Rebekka Williams , Max Panoff , Meynard Ballesteros , Bobbie Suarez

With the improvements in the object detection networks, several variations of object detection networks have been achieved impressive performance. However, the performance evaluation of most models has focused on detection accuracy, and…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Min-Kook Choi , Heechul Jung

The clutter in the ground-penetrating radar (GPR) radargram disguises or distorts subsurface target responses, which severely affects the accuracy of target detection and identification. Existing clutter removal methods either leave…

Signal Processing · Electrical Eng. & Systems 2022-06-15 Hai-Han Sun , Weixia Cheng , Zheng Fan

Gravitational wave detection requires sophisticated signal processing to identify weak astrophysical signals buried in instrumental noise. Traditional matched filtering approaches face computational challenges with diverse signal…

Instrumentation and Methods for Astrophysics · Physics 2026-01-28 Jericho Cain

Recent advancements in synthetic aperture radar (SAR) ship detection using deep learning have significantly improved accuracy and speed, yet effectively detecting small objects in complex backgrounds with fewer parameters remains a…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Hongyu Chen , Chengcheng Chen , Fei Wang , Yuhu Shi , Weiming Zeng

Classical radar detection techniques rely on adaptive detectors that estimate the noise covariance matrix from target-free secondary data. While effective in Gaussian environments, these methods degrade in the presence of clutter, which is…

Machine Learning · Computer Science 2026-02-24 Jean Pinsolle , Yadang Alexis Rouzoumka , Chengfang Ren , Chistèle Morisseau , Jean-Philippe Ovarlez

We address adaptive radar detection of targets embedded in ground clutter dominated environments characterized by a symmetrically structured power spectral density. At the design stage, we leverage on the spectrum symmetry for the…

Applications · Statistics 2016-05-25 A. De Maio , D. Orlando , C. Hao , G. Foglia

In detecting shallow buried underground objects, reflected power from ground, i.e. ground surface clutter makes the task extremely difficult. In order to remove ground clutter, conventional methods in the literature are not as much…

Signal Processing · Electrical Eng. & Systems 2019-10-18 Ali Gharamohammadi , Fereidoon Behnia , Arash Shokouhmand

Deep learning has shown remarkable success in remote sensing change detection (CD), aiming to identify semantic change regions between co-registered satellite image pairs acquired at distinct time stamps. However, existing convolutional…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Mubashir Noman , Mustansar Fiaz , Hisham Cholakkal , Salman Khan , Fahad Shahbaz Khan