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Single-frame infrared small target detection is considered to be a challenging task, due to the extreme imbalance between target and background, bounding box regression is extremely sensitive to infrared small target, and target information…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Bo Yang , Xinyu Zhang , Jian Zhang , Jun Luo , Mingliang Zhou , Yangjun Pi

For a better understanding of granular flow problems such as silo blockage, avalanche triggering, mixing and segregation, it is essential to have a `microscopic' view of individual particles. In order to cope with the difficulty arising…

Data Analysis, Statistics and Probability · Physics 2019-11-05 Felix Rech , Kai Huang

Image Rotation and Subtraction (IRS) is a high-contrast imaging technique which can be used to suppress the speckles noise and facilitate the direct detection of exoplanets. IRS is different from Angular Differential Imaging (ADI), in which…

Instrumentation and Methods for Astrophysics · Physics 2015-06-23 Jiangpei Dou , Deqing Ren , Gang Zhao , Xi Zhang , Rui Chen , Yongtian Zhu

We developed a source detection algorithm based on the Minimal Spanning Tree (MST), that is a graph-theoretical method useful for finding clusters in a given set of points. This algorithm is applied to gamma-ray bidimensional images where…

Astrophysics · Physics 2008-11-26 Riccardo Campana , Enrico Massaro , Dario Gasparrini , Sara Cutini , Andrea Tramacere

Infrared small target detection (ISTD) is widely used in civilian and military applications. However, ISTD encounters several challenges, including the tendency for small and dim targets to be obscured by complex backgrounds. To address…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Chen Hu , Yian Huang , Kexuan Li , Luping Zhang , Chang Long , Yiming Zhu , Tian Pu , Zhenming Peng

Infrared small target detection (IRSTD) is thus critical in both civilian and military applications. This study addresses the challenge of precisely IRSTD in complex backgrounds. Recent methods focus fundamental reliance on conventional…

Image and Video Processing · Electrical Eng. & Systems 2025-08-05 Yuxin Jing , Jufeng Zhao , Tianpei Zhang , Yiming Zhu

An innovative inverse scattering (IS) method is proposed for the quantitative imaging of pixel-sparse scatterers buried within a lossy half-space. On the one hand, such an approach leverages on the wide-band nature of ground penetrating…

Information Theory · Computer Science 2021-08-04 Marco Salucci , Nicola Anselmi

With the rapid development of information technology, modern warfare increasingly relies on intelligence, making small target detection critical in military applications. The growing demand for efficient, real-time detection has created…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Xiaoxiao Ma , Junxiong Tong

In this paper, we propose a method for separating known targets of interests from the background in hyperspectral imagery. More precisely, we regard the given hyperspectral image (HSI) as being made up of the sum of low-rank background HSI…

Image and Video Processing · Electrical Eng. & Systems 2018-08-21 Ahmad W. Bitar , Loong-Fah Cheong , Jean-Philippe Ovarlez

Robust self-training (RST) can augment the adversarial robustness of image classification models without significantly sacrificing models' generalizability. However, RST and other state-of-the-art defense approaches failed to preserve the…

Image and Video Processing · Electrical Eng. & Systems 2022-05-05 Shoukun Sun , Min Xian , Aleksandar Vakanski , Hossny Ghanem

We consider the multi-target detection problem of estimating a two-dimensional target image from a large noisy measurement image that contains many randomly rotated and translated copies of the target image. Motivated by single-particle…

Image and Video Processing · Electrical Eng. & Systems 2022-09-05 Tamir Bendory , Ti-Yen Lan , Nicholas F. Marshall , Iris Rukshin , Amit Singer

Radar target detection in the presence of a mixture of non-Gaussian clutter and white thermal noise is a challenging problem. This paper proposes a Rectified Flow Matching-based method for radar detection, termed D-RFM. Unlike existing…

Signal Processing · Electrical Eng. & Systems 2026-03-20 P. Meena , Y. A. Rouzoumka , J. Pinsolle , C. Ren , M. N. El Korso , J. -P. Ovarlez

Discriminating targets moving against a cluttered background is a huge challenge, let alone detecting a target as small as one or a few pixels and tracking it in flight. In the fly's visual system, a class of specific neurons, called small…

Computer Vision and Pattern Recognition · Computer Science 2018-10-02 Hongxin Wang , Jigen Peng , Shigang Yue

Infrared small target detection is crucial for remote sensing applications like disaster warning and maritime surveillance. However, due to the lack of distinctive texture and morphological features, infrared small targets are highly…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Jiayi Zuo , Songwei Pei , Qian Li

Infrared small target super-resolution (SR) aims to recover reliable and detailed high-resolution image with high-contrast targets from its low-resolution counterparts. Since the infrared small target lacks color and fine structure…

Image and Video Processing · Electrical Eng. & Systems 2023-04-05 Xinyi Ying , Yingqian Wang , Longguang Wang , Weidong Sheng , Li Liu , Zaiping Lin , Shilin Zhou

Small target motion detection within complex natural environments is an extremely challenging task for autonomous robots. Surprisingly, the visual systems of insects have evolved to be highly efficient in detecting mates and tracking prey,…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Hongxin Wang , Jiannan Zhao , Huatian Wang , Cheng Hu , Jigen Peng , Shigang Yue

Robust foreground object segmentation via background modelling is a difficult problem in cluttered environments, where obtaining a clear view of the background to model is almost impossible. In this paper, we propose a method capable of…

Computer Vision and Pattern Recognition · Computer Science 2014-06-20 Vikas Reddy , Conrad Sanderson , Andres Sanin , Brian C. Lovell

Single-frame infrared small target (SIRST) detection aims at separating small targets from clutter backgrounds. With the advances of deep learning, CNN-based methods have yielded promising results in generic object detection due to their…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Boyang Li , Chao Xiao , Longguang Wang , Yingqian Wang , Zaiping Lin , Miao Li , Wei An , Yulan Guo

This paper addresses the synthesis of slow-time coded waveforms for single target tracking in a radar network operating under colored Gaussian interference. Based on the Posterior Cram\'er Rao Lower Bound (PCRLB), which characterizes the…

Signal Processing · Electrical Eng. & Systems 2025-12-08 Tao Fan , Augusto Aubry , Antonio De Maio , Luca Pallotta , Xianxiang Yu , Guolong Cui

Indirect searches for products of dark matter annihilation and decay face the challenge of identifying an uncertain and subdominant signal in the presence of uncertain backgrounds. Two valuable approaches to this problem are (1) using…

High Energy Astrophysical Phenomena · Physics 2015-12-16 Jennifer M. Siegal-Gaskins
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