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Automatic target recognition (ATR) based on inverse synthetic aperture radar (ISAR) images, which is extensively utilized to surveil environment in military and civil fields, must be high-precision and reliable. Photonic technologies'…

Signal Processing · Electrical Eng. & Systems 2022-12-06 Xiuting Zou , Anyi Deng , Yiheng Hu , Shiyu Hua , Linbo Zhang , Shaofu Xu , Weiwen Zou

The speckle noise inherent in Synthetic Aperture Radar (SAR) imagery significantly degrades image quality and complicates subsequent analysis. Given that SAR speckle is multiplicative and Gamma-distributed, effectively despeckling SAR…

Image and Video Processing · Electrical Eng. & Systems 2026-01-22 Junhyuk Heo

Images generated by high-resolution SAR have vast areas of application as they can work better in adverse light and weather conditions. One such area of application is in the military systems. This study is an attempt to explore the…

Image and Video Processing · Electrical Eng. & Systems 2023-03-29 Aakash Singh , Vivek Kumar Singh

The promising potential of Deep Learning for Automatic Target Recognition (ATR) on Synthetic Aperture Radar (SAR) images vanishes when considering the complexity of collecting training datasets measurements. Simulation can overcome this…

Computer Vision and Pattern Recognition · Computer Science 2022-06-16 Benjamin Camus , Corentin Le Barbu , Eric Monteux

In Synthetic Aperture Radar (SAR) imaging, despeckling is very important for image analysis,whereas speckle is known as a kind of multiplicative noise caused by the coherent imaging system. During the past three decades, various algorithms…

Image and Video Processing · Electrical Eng. & Systems 2020-12-01 Qianqian Zhang , Ruizhi Sun

Along with the improvement of radar technologies, Automatic Target Recognition (ATR) using Synthetic Aperture Radar (SAR) and Inverse SAR (ISAR) has come to be an active research area. SAR/ISAR are radar techniques to generate a…

Computer Vision and Pattern Recognition · Computer Science 2018-03-13 Carlos Pena-Caballero , Elifaleth Cantu , Jesus Rodriguez , Adolfo Gonzales , Osvaldo Castellanos , Angel Cantu , Megan Strait , Jae Son , Dongchul Kim

Deep learning (DL) in remote sensing has nowadays become an effective operative tool: it is largely used in applications such as change detection, image restoration, segmentation, detection and classification. With reference to synthetic…

Image and Video Processing · Electrical Eng. & Systems 2020-11-19 Sergio Vitale , Giampaolo Ferraioli , Vito Pascazio

It is a challenging problem to detect and recognize targets on complex large-scene Synthetic Aperture Radar (SAR) images. Recently developed deep learning algorithms can automatically learn the intrinsic features of SAR images, but still…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Siyan Li , Yue Xiao , Yuhang Zhang , Lei Chu , Robert C. Qiu

Benefiting from a relatively larger aperture's angle, and in combination with a wide transmitting bandwidth, near-field synthetic aperture radar (SAR) provides a high-resolution image of a target's scattering distribution-hot spots.…

Image and Video Processing · Electrical Eng. & Systems 2022-11-29 Xu Zhan , Xiaoling Zhang , Wensi Zhang , Jun Shi , Shunjun Wei , Tianjiao Zeng

Small area change detection from synthetic aperture radar (SAR) is a highly challenging task. In this paper, a robust unsupervised approach is proposed for small area change detection from multi-temporal SAR images using deep learning.…

Computer Vision and Pattern Recognition · Computer Science 2020-11-24 Xinzheng Zhang , Hang Su , Ce Zhang , Xiaowei Gu , Xiaoheng Tan , Peter M. Atkinson

Synthetic Aperture Radar (SAR) images contain a huge amount of information, however, the number of practical use-cases is limited due to the presence of speckle noise in them. In recent years, deep learning based techniques have brought…

Image and Video Processing · Electrical Eng. & Systems 2020-04-24 Shrey Dabhi , Kartavya Soni , Utkarsh Patel , Priyanka Sharma , Manojkumar Parmar

Advancements in Sonar image capture have enabled researchers to apply sophisticated object identification algorithms in order to locate targets of interest in images such as mines. Despite progress in this field, modern sonar automatic…

Computer Vision and Pattern Recognition · Computer Science 2016-01-05 John McKay , Raghu Raj , Vishal Monga , Jason Isaacs

In the context of Synthetic Aperture Radar (SAR) image recognition, traditional methods often struggle with the intrinsic limitations of SAR data, such as weak texture, high noise, and ambiguous object boundaries. This work explores a novel…

Signal Processing · Electrical Eng. & Systems 2025-07-15 Chaoran Li , Xingguo Xu , Siyuan Mu

Synthetic aperture radar (SAR) images are widely used in remote sensing. Interpreting SAR images can be challenging due to their intrinsic speckle noise and grayscale nature. To address this issue, SAR colorization has emerged as a research…

Computer Vision and Pattern Recognition · Computer Science 2023-10-16 Kangqing Shen , Gemine Vivone , Xiaoyuan Yang , Simone Lolli , Michael Schmitt

The existing Video Synthetic Aperture Radar (ViSAR) moving target shadow detection methods based on deep neural networks mostly generate numerous false alarms and missing detections, because of the foreground-background…

Signal Processing · Electrical Eng. & Systems 2022-10-07 Zhenyu Yang , Xiaoling Zhang , Xu Zhan

Different camera sensors have different noise patterns, and thus an image denoising model trained on one sensor often does not generalize well to a different sensor. One plausible solution is to collect a large dataset for each sensor for…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Zian Qian , Chenyang Qi , Ka Lung Law , Hao Fu , Chenyang Lei , Qifeng Chen

Open set recognition (OSR) requires models to classify known samples while detecting unknown samples for real-world applications. Existing studies show impressive progress using unknown samples from auxiliary datasets to regularize OSR…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Yu Wang , Junxian Mu , Hongzhi Huang , Qilong Wang , Pengfei Zhu , Qinghua Hu

Causal representation learning (CRL) offers the promise of uncovering the underlying causal model by which observed data was generated, but the practical applicability of existing methods remains limited by the strong assumptions required…

Machine Learning · Computer Science 2026-01-30 Yuhang Liu , Zhen Zhang , Dong Gong , Erdun Gao , Biwei Huang , Mingming Gong , Anton van den Hengel , Kun Zhang , Javen Qinfeng Shi

Current top-notch deep learning (DL) based vision models are primarily based on exploring and exploiting the inherent correlations between training data samples and their associated labels. However, a known practical challenge is their…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Chao-Han Huck Yang , I-Te Danny Hung , Yi-Chieh Liu , Pin-Yu Chen

With the recent advances of deep learning, automatic target recognition (ATR) of synthetic aperture radar (SAR) has achieved superior performance. By not being limited to the target category, the SAR ATR system could benefit from the…

Image and Video Processing · Electrical Eng. & Systems 2023-08-15 Chenwei Wang , Jifang Pei , Zhiyong Wang , Yulin Huang , Junjie Wu , Haiguang Yang , Jianyu Yang