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Optical null medium (ONM) has garnered significant attention in electromagnetic wave manipulation. However, existing ONM implementations suffer from either narrow operational bandwidths or low efficiency. Here, we demonstrate an…

Optics · Physics 2025-05-20 Yichao Liu , Jiale Li , Fei Sun , Qin Liao , Hanchuan Chen , Ruihang Deng

Earth observation (EO) data features diverse sensing platforms with varying spectral bands, spatial resolutions, and sensing modalities. While most prior work has constrained inputs to fixed sensors, a new class of any-sensor foundation…

Machine Learning · Computer Science 2025-08-04 Leonard Waldmann , Ando Shah , Yi Wang , Nils Lehmann , Adam J. Stewart , Zhitong Xiong , Xiao Xiang Zhu , Stefan Bauer , John Chuang

Omnidirectional stereo matching (OSM) is an essential and reliable means for $360^{\circ}$ depth sensing. However, following earlier works on conventional stereo matching, prior state-of-the-art (SOTA) methods rely on a 3D encoder-decoder…

Computer Vision and Pattern Recognition · Computer Science 2024-01-29 Hualie Jiang , Rui Xu , Minglang Tan , Wenjie Jiang

Orbital angular momentum (OAM) at radio-frequency provides a novel approach of multiplexing a set of orthogonal modes on the same frequency channel to achieve high spectral efficiencies. However, classical phase gradient-based OAM mode…

Signal Processing · Electrical Eng. & Systems 2021-12-01 Jiabei Fan , Rui Chen , Wen-Xuan Long , Marco Moretti , Jiandong Li

The Ocean Color Monitor-3 (OCM-3) sensor is instrumental in Earth observation, achieving a critical balance between high-resolution imaging and broad coverage. This paper explores innovative imaging methods employed in OCM-3 and the…

Image and Video Processing · Electrical Eng. & Systems 2024-10-25 Ankur Garg , Tushar Shukla , Purvee Joshi , Debojyoti Ganguly , Ashwin Gujarati , Meenakshi Sarkar , KN Babu , Mehul Pandya , S. Manthira Moorthi , Debajyoti Dhar

Object extraction and segmentation from remote sensing (RS) images is a critical yet challenging task in urban environment monitoring. Urban morphology is inherently complex, with irregular objects of diverse shapes and varying scales.…

Computer Vision and Pattern Recognition · Computer Science 2025-02-24 Chenyu Li , Danfeng Hong , Bing Zhang , Yuxuan Li , Gustau Camps-Valls , Xiao Xiang Zhu , Jocelyn Chanussot

Image segmentation beyond predefined categories is a key challenge in remote sensing, where novel and unseen classes often emerge during inference. Open-vocabulary image Segmentation addresses these generalization issues in traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Saikat Dutta , Akhil Vasim , Siddhant Gole , Hamid Rezatofighi , Biplab Banerjee

In this paper, we develop a communication-oriented complex baseband equivalent model for superheterodyne Rydberg atomic quantum receivers (RAQRs). The model explicitly captures photodetection-induced signal-dependent shot noise and its…

Signal Processing · Electrical Eng. & Systems 2026-05-12 Qihao Peng , Qu Luo , Tierui Gong , Neng Ye , Jizhou Wu , Cunhua Pan , Maged Elkashlan , Pei Xiao , Chau Yuen , George K. Karagiannidis , Jiangzhou Wang

The amount of Adaptive Optics (AO) telemetry generated by VIS/NIR ground-based observatories is ever greater, leading to a growing need for a standardised data exchange format to support performance analysis and AO research and development…

Despite remarkable progress in Single Image Super-Resolution (SISR), traditional models often struggle to generalize across varying scale factors, limiting their real-world applicability. To address this, we propose a plug-in Scale-Aware…

Computer Vision and Pattern Recognition · Computer Science 2026-01-14 Dongsik Yoon , Jongeun Kim

The Segment Anything Model (SAM) is a foundation model for general image segmentation. Although it exhibits impressive performance predominantly on natural images, understanding its robustness against various image perturbations and domains…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Yuqing Wang , Yun Zhao , Linda Petzold

While foundation models have shown promise across a variety of fields, astronomy still lacks a unified framework for joint modeling across its highly diverse data modalities. In this paper, we present AION-1, a family of large-scale…

The Segment Anything Model (SAM) has gained popularity as a versatile image segmentation method, thanks to its strong generalization capabilities across various domains. However, when applied to optic disc (OD) and optic cup (OC)…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Jinchen Yu , Yongwei Nie , Fei Qi , Wenxiong Liao , Hongmin Cai

The Segment Anything Model (SAM) has drawn significant attention from researchers who work on medical image segmentation because of its generalizability. However, researchers have found that SAM may have limited performance on medical…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Yihao Liu , Jiaming Zhang , Andres Diaz-Pinto , Haowei Li , Alejandro Martin-Gomez , Amir Kheradmand , Mehran Armand

Recent advancements in biomedical image analysis have been significantly driven by the Segment Anything Model (SAM). This transformative technology, originally developed for general-purpose computer vision, has found rapid application in…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Ho Hin Lee , Yu Gu , Theodore Zhao , Yanbo Xu , Jianwei Yang , Naoto Usuyama , Cliff Wong , Mu Wei , Bennett A. Landman , Yuankai Huo , Alberto Santamaria-Pang , Hoifung Poon

Optically pumped atomic magnetometers (OPAMs) offer high sensitivity at room temperature and are increasingly considered for portable magnetic sensing in geomagnetic-field environments. Here we report a handheld-scale, single-beam scalar…

Atomic Physics · Physics 2026-01-14 Heonsik Lee , Hyunbeen Lee , Minseok Choi , Yoontae Hwang , Deok-Young Lee

Orbital angular momentum (OAM) at radio frequency (RF) provides a novel approach of multiplexing a set of orthogonal modes on the same frequency channel to achieve high spectrum efficiencies. However, there are still big challenges in the…

Signal Processing · Electrical Eng. & Systems 2020-07-07 Rui Chen , Wen-Xuan Long , Xiaodong Wang , Jiandong Li

We propose and demonstrate a novel scheme for optical arbitrary waveform measurement (OAWM) that exploits chip-scale Kerr soliton combs as highly scalable multiwavelength local oscillators (LO) for ultra-broadband full-field waveform…

Recent work by Oberti et al, (Astron. Astrophys., 667, 48, 2022) argued and made a compelling case that classical astronomical adaptive optics (AO) tomography performance can be further enhanced by carefully designing and optically…

Instrumentation and Methods for Astrophysics · Physics 2025-12-22 Carlos M. Correia , Pierre Jouve , Jesse Cranney , Guido Agapito Cédric Taïssir Heritier

Segment Anything Model (SAM) has recently gained much attention for its outstanding generalization to unseen data and tasks. Despite its promising prospect, the vulnerabilities of SAM, especially to universal adversarial perturbation (UAP)…

Artificial Intelligence · Computer Science 2024-09-27 Ziqi Zhou , Yufei Song , Minghui Li , Shengshan Hu , Xianlong Wang , Leo Yu Zhang , Dezhong Yao , Hai Jin