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Existing deep learning-based methods can capture shared features from optical and synthetic aperture radar (SAR) images for spatial alignment. However, optical-SAR registration remains challenging under large geometric deformations, because…

计算机视觉与模式识别 · 计算机科学 2026-05-13 Zhuoyu Cai , Dou Quan , Ning Huyan , Pei He , Shuang Wang , Licheng Jiao

Adaptive Optics (AO) is an innovative technique that substantially improves the optical performance of ground-based telescopes. The SOAR Adaptive Module (SAM) is a laser-assisted AO instrument, designed to compensate ground-layer…

天体物理仪器与方法 · 物理学 2018-08-28 D. M. Faes , A. Tokovinin , T. Vieira , A. Mello , M. Domingues , D. Andrade , B. C. Quint , J. B. Santos

Recent surface anomaly detection methods excel at identifying structural anomalies, such as dents and scratches, but struggle with logical anomalies, such as irregular or missing object components. The best-performing logical anomaly…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Matic Fučka , Vitjan Zavrtanik , Danijel Skočaj

Synthetic Aperture Radar (SAR) imaging technology provides the unique advantage of being able to collect data regardless of weather conditions and time. However, SAR images exhibit complex backscatter patterns and speckle noise, which…

图像与视频处理 · 电气工程与系统科学 2025-04-22 Seon-Hoon Kim , Dae-Won Chung

Sparsity-regularized synthetic aperture radar (SAR) imaging framework has shown its remarkable performance to generate a feature enhanced high resolution image, in which a sparsity-inducing regularizer is involved by exploiting the sparsity…

计算机视觉与模式识别 · 计算机科学 2018-05-09 Biao Hou , Zaidao Wen , Licheng Jiao , Qian Wu

Recently, autoregressive (AR) models have shown strong potential in image generation, offering better scalability and easier integration with unified multi-modal systems compared to diffusion-based methods. However, extending AR models to…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Dongyang Jin , Ryan Xu , Jianhao Zeng , Rui Lan , Yancheng Bai , Lei Sun , Xiangxiang Chu

Synthetic Aperture RADAR is a radar imaging technique in which the relative motion of the sensor is used to synthesize a very long antenna and obtain high spatial resolution. The increasing interest of the scientific community to simplify…

信号处理 · 电气工程与系统科学 2018-06-05 Cataldo Guaragnella , Tiziana D'Orazio

Conventional focusing methods for Synthetic Aperture Radar (SAR) employ block processing efficiently but remain latency-heavy processes that prevent the realisation of a closed-loop cognitive SAR vision system. We present the first Online…

图像与视频处理 · 电气工程与系统科学 2026-05-12 Sebastian Fieldhouse , Roberto Del Prete , Gabriele Daga , Nathaniel Rensly , Gabriele Meoni , Kea-Tiong Tang

Synthetic Aperture Radar (SAR) imagery provides robust environmental and temporal coverage (e.g., during clouds, seasons, day-night cycles), yet its noise and unique structural patterns pose interpretation challenges, especially for…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Jeonghyeok Do , Jaehyup Lee , Munchurl Kim

Semantic communication is focused on optimizing the exchange of information by transmitting only the most relevant data required to convey the intended message to the receiver and achieve the desired communication goal. For example, if we…

信息论 · 计算机科学 2024-02-05 Fatemeh Zahra Safaeipour , Morteza Hashemi

The ability to efficiently search for images is essential for improving the user experiences across various products. Incorporating user feedback, via multi-modal inputs, to navigate visual search can help tailor retrieved results to…

计算机视觉与模式识别 · 计算机科学 2021-10-22 Surgan Jandial , Pinkesh Badjatiya , Pranit Chawla , Ayush Chopra , Mausoom Sarkar , Balaji Krishnamurthy

Synthetic aperture sonar (SAS) measures a scene from multiple views in order to increase the resolution of reconstructed imagery. Image reconstruction methods for SAS coherently combine measurements to focus acoustic energy onto the scene.…

图像与视频处理 · 电气工程与系统科学 2023-06-19 Albert W. Reed , Juhyeon Kim , Thomas Blanford , Adithya Pediredla , Daniel C. Brown , Suren Jayasuriya

The applicability of computer vision to real paintings and artworks has been rarely investigated, even though a vast heritage would greatly benefit from techniques which can understand and process data from the artistic domain. This is…

计算机视觉与模式识别 · 计算机科学 2019-05-20 Matteo Tomei , Marcella Cornia , Lorenzo Baraldi , Rita Cucchiara

Synthetic Aperture Radar (SAR) images are widely used in remote sensing due to their all-weather, all-day imaging capabilities. However, SAR images are highly susceptible to noise, particularly speckle noise, caused by the coherent imaging…

信息论 · 计算机科学 2024-12-25 Xuran Hu , Mingzhe Zhu , Djordje Stanković , Zhenpeng Feng , Shouhan Mao , Ljubiša Stanković

Adaptive optics (AO) is a powerful tool employed across various research fields, from aerospace to microscopy. Traditionally, AO has focused on correcting optical phase aberrations, with recent advances extending to polarisation…

Adaptive optics normally concerns the feedback correction of phase aberrations. Such correction has been of benefit in various optical systems, with applications ranging in scale from astronomical telescopes to super-resolution microscopes.…

光学 · 物理学 2021-10-07 Chao He , Jacopo Antonello , Martin J. Booth

Most existing change detection (CD) methods focus on optical images captured at different times, and deep learning (DL) has achieved remarkable success in this domain. However, in extreme scenarios such as disaster response, synthetic…

计算机视觉与模式识别 · 计算机科学 2025-03-26 Ziyuan Liu , Jiawei Zhang , Wenyu Wang , Yuantao Gu

Image-to-image (I2I) translation is an established way of translating data from one domain to another but the usability of the translated images in the target domain when working with such dissimilar domains as the SAR/optical satellite…

计算机视觉与模式识别 · 计算机科学 2021-12-13 Alejandro D. Mousist

Significant differences in optical images and Synthetic Aperture Radar (SAR) images are caused by fundamental differences in the physical principles underlying their acquisition by Earth remote sensing platforms. These differences make…

计算机视觉与模式识别 · 计算机科学 2026-02-16 Alexey Borisov , Evgeny Myasnikov , Vladislav Myasnikov

Synthetic Aperture Radar (SAR) images are usually degraded by a multiplicative noise known as speckle which makes processing and interpretation of SAR images difficult. In this paper, we introduce a transformer-based network for SAR image…

计算机视觉与模式识别 · 计算机科学 2022-01-25 Malsha V. Perera , Wele Gedara Chaminda Bandara , Jeya Maria Jose Valanarasu , Vishal M. Patel