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Related papers: MAI-SIM: interferometric multicolor structured ill…

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Scanning Microwave Impedance Microscopy (MIM) measurement of photoconductivity with 50 nm resolution is demonstrated using a modulated optical source. The use of a modulated source allows for measurement of photoconductivity in a single…

Instrumentation and Detectors · Physics 2018-05-09 Scott R. Johnston , Eric Yue Ma , Zhi-Xun Shen

Reconfigurable intelligent surfaces (RISs) have attracted increasing interest due to their ability to improve the coverage, reliability, and energy efficiency of millimeter wave (mmWave) communication systems. However, designing the RIS…

Signal Processing · Electrical Eng. & Systems 2022-11-15 Shuaifeng Jiang , Ahmed Hindy , Ahmed Alkhateeb

This paper proposes a transmit beamforming strategy for the integrated sensing and communication (ISAC) systems enabled by the novel stacked intelligent metasurface (SIM) architecture, where the base station (BS) simultaneously performs…

Signal Processing · Electrical Eng. & Systems 2025-06-17 Shunyu Li , Fan Zhang , Tianqi Mao , Rui Na , Zhaocheng Wang , George K. Karagiannidis

We consider stacked intelligent metasurfaces (SIMs) as a tool to improve the performance of bistatic integrated sensing and communications (ISAC) schemes. To that end, we optimize the SIMs and design a radar parameter estimation (RPE)…

Functional magnetic resonance imaging (fMRI) is a powerful tool for investigating human brain function. However, the high cost of data acquisition and the inherent subjectivity of psychiatric rating scales often lead to datasets with small…

Machine Learning · Computer Science 2026-05-29 Jiyao Wang , Peiyu Duan , Nicha C. Dvornek , Lawrence H. Staib , Denis Sukhodolsky , Pamela Ventola , James S. Duncan

Stacked intelligent metasurface (SIM), which consists of multiple layers of intelligent metasurfaces, is emerging as a promising solution for future wireless communication systems. In this timely context, we focus on broadcast…

Information Theory · Computer Science 2025-10-22 Nemanja Stefan Perović , Eduard E. Bahingayi , Le-Nam Tran

Improving the resolution of fluorescence microscopy beyond the diffraction limit can be achievedby acquiring and processing multiple images of the sample under different illumination conditions.One of the simplest techniques, Random…

This paper introduces an interference-free multi-stream transmission architecture leveraging stacked intelligent metasurfaces (SIMs), from a new perspective of interference exploitation. Unlike traditional interference exploitation…

Signal Processing · Electrical Eng. & Systems 2026-01-28 Hetong Wang , Yashuai Cao , Tiejun Lv , Jintao Wang , Ni Wei , Jiancheng An , Chau Yuen

Interaction-free measurement (IFM) has been proposed as a means of high-resolution, low-damage imaging of radiation-sensitive samples, such as biomolecules and proteins. The basic setup for IFM is a Mach-Zehnder interferometer, and recent…

Instrumentation and Detectors · Physics 2019-06-12 Akshay Agarwal , Karl K. Berggren , Vivek Goyal

Mid-infrared photo-induced force microscopy (IR-PiFM/PiF-IR) enables high-resolution chemical imaging of surfaces with lateral resolution less than 5 nm. Here are some answers to questions about the physical background, practical handling…

Materials Science · Physics 2026-05-05 Daniela Täuber

Semantic communication (SemCom) leveraging advanced deep learning (DL) technologies enhances the efficiency and reliability of information transmission. Emerging stacked intelligent metasurface (SIM) with an electromagnetic neural network…

Information Theory · Computer Science 2024-11-15 Guojun Huang , Jiancheng An , Zhaohui Yang , Lu Gan , Mehdi Bennis , Mérouane Debbah

In this work, we survey recent studies on masked image modeling (MIM), an approach that emerged as a powerful self-supervised learning technique in computer vision. The MIM task involves masking some information, e.g. pixels, patches, or…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Vlad Hondru , Florinel Alin Croitoru , Shervin Minaee , Radu Tudor Ionescu , Nicu Sebe

Masked image modeling (MIM) with transformer backbones has recently been exploited as a powerful self-supervised pre-training technique. The existing MIM methods adopt the strategy to mask random patches of the image and reconstruct the…

Computer Vision and Pattern Recognition · Computer Science 2024-02-05 Zhaohu Xing , Lei Zhu , Lequan Yu , Zhiheng Xing , Liang Wan

Masked Image Modeling (MIM) is a self-supervised learning technique that involves masking portions of an image, such as pixels, patches, or latent representations, and training models to predict the missing information using the visible…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Shabnam Choudhury , Akhil Vasim , Michael Schmitt , Biplab Banerjee

Multi-site MRI studies often suffer from site-specific variations arising from differences in methodology, hardware, and acquisition protocols, thereby compromising accuracy and reliability in clinical AI/ML tasks. We present PRISM…

Image and Video Processing · Electrical Eng. & Systems 2024-11-12 Sarang Galada , Tanurima Halder , Kunal Deo , Ram P Krish , Kshitij Jadhav

Tissue biopsy evaluation in the clinic is in need of quantitative disease markers for diagnosis and, most importantly, prognosis. Among the new technologies, quantitative phase imaging (QPI) has demonstrated promise for histopathology…

Reconfigurable intelligent surface (RIS)-aided cell-free (CF) massive multiple-input multiple-output (mMIMO) is a promising technology for further improving spectral efficiency (SE) with low cost and power consumption. However, conventional…

Information Theory · Computer Science 2025-12-02 Yizhuo Li , Jiakang Zheng , Bokai Xu , Yiyang Zhu , Jiayi Zhang , Dusit Niyato , Bo Ai

Efficient and accurate extraction of microstructures in micrographs of materials is essential in process optimization and the exploration of structure-property relationships. Deep learning-based image segmentation techniques that rely on…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Changtai Li , Xu Han , Chao Yao , Xiaojuan Ban

Diffusion-weighted magnetic resonance imaging (DW-MRI) can be used to characterise the microstructure of the nervous tissue, e.g. to delineate brain white matter connections in a non-invasive manner via fibre tracking. Magnetic Resonance…

Stacked intelligent metasurfaces (SIMs) have recently emerged as a promising metasurface-based physical-layer paradigm for wireless communications, enabling wave-domain signal processing through multiple cascaded metasurface layers.…

Signal Processing · Electrical Eng. & Systems 2026-02-13 Ahmed Magbool , Vaibhav Kumar , Marco Di Renzo , Mark F. Flanagan