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High-resolution fMRI provides a window into the brain's mesoscale organization. Yet, higher spatial resolution increases scan times, to compensate for the low signal and contrast-to-noise ratio. This work introduces a deep learning-based 3D…

Image and Video Processing · Electrical Eng. & Systems 2024-03-20 Hongwei Bran Li , Matthew S. Rosen , Shahin Nasr , Juan Eugenio Iglesias

We propose a novel data-driven approach for high-resolution bathymetric reconstruction from sidescan. Sidescan sonar (SSS) intensities as a function of range do contain some information about the slope of the seabed. However, that…

Robotics · Computer Science 2022-06-17 Yiping Xie , Nils Bore , John Folkesson

In this article, we introduce a novel algorithm for efficient near-field synthetic aperture radar (SAR) imaging for irregular scanning geometries. With the emergence of fifth-generation (5G) millimeter-wave (mmWave) devices, near-field SAR…

Signal Processing · Electrical Eng. & Systems 2023-05-04 Josiah Smith , Murat Torlak

Hyperspectral remote sensing images (HSIs) are characterized by having a low spatial resolution and a high spectral resolution, whereas multispectral images (MSIs) are characterized by low spectral and high spatial resolutions. These…

Computer Vision and Pattern Recognition · Computer Science 2014-06-11 Miguel Simões , José Bioucas-Dias , Luis B. Almeida , Jocelyn Chanussot

High-resolution satellite imagery is a key element for many Earth monitoring applications. Satellites such as Sentinel-2 feature characteristics that are favorable for super-resolution algorithms such as aliasing and band-misalignment.…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Ngoc Long Nguyen , Jérémy Anger , Axel Davy , Pablo Arias , Gabriele Facciolo

Sentinel-5P (S5P) plays a critical role in atmospheric monitoring; however, its spatial resolution limits fine-scale analysis. Existing super-resolution (SR) approaches rely on supervised learning with synthetic low-resolution (LR) data,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Hyam Omar Ali , Antoine Crosnier , Romain Abraham , Baptiste Combelles , Fabrice Jégou , Bruno Galerne

Many applications such as forensics, surveillance, satellite imaging, medical imaging, etc., demand High-Resolution (HR) images. However, obtaining an HR image is not always possible due to the limitations of optical sensors and their…

Image and Video Processing · Electrical Eng. & Systems 2022-11-23 Dhruv Patel , Abhinav Jain , Simran Bawkar , Manav Khorasiya , Kalpesh Prajapati , Kishor Upla , Kiran Raja , Raghavendra Ramachandra , Christoph Busch

With the limited availability of labeled data with various atmospheric conditions in remote sensing images, it seems useful to work with self-supervised algorithms. Few pretext-based algorithms, including from rotation, spatial context and…

Artificial Intelligence · Computer Science 2024-03-12 Akansh Maurya , Hewan Shrestha , Mohammad Munem Shahriar

Recognition of features in satellite imagery (forests, swimming pools, etc.) depends strongly on the spatial scale of the concept and therefore the resolution of the images. This poses two challenges: Which resolution is best suited for…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Shreelekha Revankar , Cheng Perng Phoo , Utkarsh Mall , Bharath Hariharan , Kavita Bala

Recently, 3D Gaussian Splatting (3DGS) has attracted widespread attention due to its high-quality rendering, and ultra-fast training and rendering speed. However, due to the unstructured and irregular nature of Gaussian point clouds, it is…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 Danpeng Chen , Hai Li , Weicai Ye , Yifan Wang , Weijian Xie , Shangjin Zhai , Nan Wang , Haomin Liu , Hujun Bao , Guofeng Zhang

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

In this paper, the design, realization, and demonstration of a broadband millimeter-wave imaging system based on the synthetic aperture radar technique (SAR) are discussed. The proposed system, operating within the frequency range of…

Applied Physics · Physics 2022-06-01 Fahimeh Sepehripour , Ahmad Shafiei Alavijeh , Mohammad Fakharzadeh , Amin Khavasi

This paper proposes a new three dimensional (3D) networking architecture enabled by aerial intelligent reflecting surface (AIRS) to achieve panoramic signal reflection from the sky. Compared to the conventional terrestrial IRS, AIRS not…

Information Theory · Computer Science 2020-01-22 Haiquan Lu , Yong Zeng , Shi Jin , Rui Zhang

Flight height is a fundamental parameter for correcting the gamma signal produced by terrestrial radionuclides measured during airborne surveys. The frontiers of radiometric measurements with UAV require light and accurate altimeters flying…

Rotating Synthetic Aperture Radar (ROSAR) can generate a 360$^\circ$ image of its surrounding environment using the collected data from a single moving track. Due to its non-linear track, the Back-Projection Algorithm (BPA) is commonly used…

Signal Processing · Electrical Eng. & Systems 2023-09-18 Wei Zhao , Cai Wen , Quan Yuan , Rong Zheng

Satellite imaging generally presents a trade-off between the frequency of acquisitions and the spatial resolution of the images. Super-resolution is often advanced as a way to get the best of both worlds. In this work, we investigate…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Aimi Okabayashi , Nicolas Audebert , Simon Donike , Charlotte Pelletier

Super-resolution (SR) is a key technique for improving the visual quality of video content by increasing its spatial resolution while reconstructing fine details. SR has been employed in many applications including video streaming, where…

Image and Video Processing · Electrical Eng. & Systems 2025-07-10 Yuxuan Jiang , Jakub Nawała , Chen Feng , Fan Zhang , Xiaoqing Zhu , Joel Sole , David Bull

Multi-Image Super-Resolution (MISR) is a crucial yet challenging research task in the remote sensing community. In this paper, we address the challenging task of Multi-Image Super-Resolution in Remote Sensing (MISR-RS), aiming to generate a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Zhihui Zhang , Jinhui Pang , Jianan Li , Xiaoshuai Hao

High-quality remote sensing (RS) image acquisition is fundamentally constrained by physical limitations. While Multi-Frame Super-Resolution (MFSR) and Pansharpening address this by exploiting complementary information, they are typically…

Image and Video Processing · Electrical Eng. & Systems 2026-04-08 Yufei Tong , Guanjie Cheng , Peihan Wu , Feiyi Chen , Xinkui Zhao , Shuiguang Deng

3D Gaussian Splatting (3DGS) has emerged as a novel paradigm for 3D reconstruction from satellite imagery. However, in multi-temporal satellite images, prevalent shadows exhibit significant inconsistencies due to varying illumination…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Feng Luo , Hongbo Pan , Xiang Yang , Baoyu Jiang , Fengqing Liu , Tao Huang
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