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Foundation model-based semantic transmission has recently shown great potential in wireless image communication. However, existing methods exhibit two major limitations: (i) they overlook the varying importance of semantic components for…

Image and Video Processing · Electrical Eng. & Systems 2025-09-30 Fangyu Liu , Peiwen Jiang , Wenjin Wang , Chao-Kai Wen , Shi Jin , Jun Zhang

Synthetic aperture radar (SAR) is prevalent in the remote sensing field but is difficult to interpret in human visual perception. Recently, SAR-to-optical (S2O) image conversion methods have provided a prospective solution for…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Mingjin Zhang , Jiamin Xu , Chengyu He , Wenteng Shang , Yunsong Li , Xinbo Gao

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…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Malsha V. Perera , Wele Gedara Chaminda Bandara , Jeya Maria Jose Valanarasu , Vishal M. Patel

In the problem of spotlight mode airborne synthetic aperture radar (SAR) image formation, it is well-known that data collected over a wide azimuthal angle violate the isotropic scattering property typically assumed. Many techniques have…

Image and Video Processing · Electrical Eng. & Systems 2023-04-12 Victor Churchill , Anne Gelb

Currently, numerous remote sensing satellites provide a huge volume of diverse earth observation data. As these data show different features regarding resolution, accuracy, coverage, and spectral imaging ability, fusion techniques are…

Image and Video Processing · Electrical Eng. & Systems 2018-10-29 Hossein Bagheri , Michael Schmitt , Pablo d'Angelo , Xiao Xiang Zhu

In recent years, diffusion models have emerged as a superior alternative to generative adversarial networks (GANs) for high-fidelity image generation, with wide applications in text-to-image generation, image-to-image translation, and…

Image and Video Processing · Electrical Eng. & Systems 2026-05-08 Lorenzo Aloisi , Luigi Sigillo , Aurelio Uncini , Danilo Comminiello

This paper contributes to the "BraTS 2024 Brain MR Image Synthesis Challenge" and presents a conditional Wavelet Diffusion Model (cWDM) for directly solving a paired image-to-image translation task on high-resolution volumes. While deep…

Image and Video Processing · Electrical Eng. & Systems 2024-11-27 Paul Friedrich , Alicia Durrer , Julia Wolleb , Philippe C. Cattin

We present Fractional Diffusion Bridge Models (FDBM), a novel generative diffusion bridge framework driven by an approximation of the rich and non-Markovian fractional Brownian motion (fBM). Real stochastic processes exhibit a degree of…

Synthetic aperture radar automatic target recognition (SAR ATR) methods fall short with limited training data. In this letter, we propose a causal interventional ATR method (CIATR) to formulate the problem of limited SAR data which helps us…

Image and Video Processing · Electrical Eng. & Systems 2023-08-21 Chenwei Wang , Xin Chen , You Qin , Siyi Luo , Yulin Huang , Jifang Pei , Jianyu Yang

Synthetic aperture radar (SAR) imaging plays a critical role in all-weather, day-and-night remote sensing, yet reconstruction is often challenged by noise, undersampling, and complex scattering scenarios. Conventional methods, including…

Signal Processing · Electrical Eng. & Systems 2025-12-09 Hefei Gao , Tianyao Huang , Letian Guo , Jie He , Yonina C. Eldar

Image-to-image translation is a vital component in medical imaging processing, with many uses in a wide range of imaging modalities and clinical scenarios. Previous methods include Generative Adversarial Networks (GANs) and Diffusion Models…

Image and Video Processing · Electrical Eng. & Systems 2024-08-15 Yinchi Zhou , Tianqi Chen , Jun Hou , Huidong Xie , Nicha C. Dvornek , S. Kevin Zhou , David L. Wilson , James S. Duncan , Chi Liu , Bo Zhou

As a powerful technique in medical imaging, image synthesis is widely used in applications such as denoising, super resolution and modality transformation etc. Recently, the revival of deep neural networks made immense progress in the field…

Image and Video Processing · Electrical Eng. & Systems 2021-04-23 Gengyan Zhao , Mary E. Meyerand , Rasmus M. Birn

This article is written to serve as an introduction and survey of imaging with synthetic aperture radar (SAR). The reader will benefit from having some familiarity with harmonic analysis, electromagnetic radiation, and inverse problems.…

Numerical Analysis · Mathematics 2019-10-24 Toby Sanders , Christian Dwyer , Rodrigo B. Platte

A modified version of MRFFCM (Markov Random Field Fuzzy C means) based SAR (Synthetic aperture Radar) image change detection method is proposed in this paper. It involves three steps: Difference Image (DI) generation by using Gauss-log…

Computer Vision and Pattern Recognition · Computer Science 2015-06-05 Jismy Alphonse , Biju V. G.

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…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Alexey Borisov , Evgeny Myasnikov , Vladislav Myasnikov

Synthetic aperture radar (SAR) on unmanned aerial vehicles (UAVs) enables high-resolution sensing in low-altitude wireless networks, while requiring reliable uplink data backhaul to ground base stations under dynamic channel conditions.…

Signal Processing · Electrical Eng. & Systems 2026-04-02 Zhen Du , Fan Liu , Jie Yang , Yuanhao Cui , Rui Wang , Zenghui Zhang , Shi Jin

Multi-domain image-to-image translation with conditional Generative Adversarial Networks (GANs) can generate highly photo realistic images with desired target classes, yet these synthetic images have not always been helpful to improve…

Computer Vision and Pattern Recognition · Computer Science 2021-05-13 Suman Sapkota , Bidur Khanal , Binod Bhattarai , Bishesh Khanal , Tae-Kyun Kim

Adverse weather conditions, including snow, rain, and fog, pose a major challenge for both human and computer vision. Handling these environmental conditions is essential for safe decision making, especially in autonomous vehicles,…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Zheng Shi , Ethan Tseng , Mario Bijelic , Werner Ritter , Felix Heide

This paper explores the use of multi-conditional adversarial networks for SAR-to-EO image translation. Previous methods condition adversarial networks only on the input SAR. We show that incorporating multiple complementary modalities such…

Computer Vision and Pattern Recognition · Computer Science 2022-07-28 Armando Cabrera , Miriam Cha , Prafull Sharma , Michael Newey

Image deblurring is an ill-posed problem with multiple plausible solutions for a given input image. However, most existing methods produce a deterministic estimate of the clean image and are trained to minimize pixel-level distortion. These…

Computer Vision and Pattern Recognition · Computer Science 2021-12-30 Jay Whang , Mauricio Delbracio , Hossein Talebi , Chitwan Saharia , Alexandros G. Dimakis , Peyman Milanfar