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We present the first theoretical framework for applying spiking neural networks (SNNs) to synthetic aperture radar (SAR) interferometric phase unwrapping. Despite extensive research in both domains, our comprehensive literature review…

Neural and Evolutionary Computing · Computer Science 2025-06-27 Marc Bara

A previous signal processing algorithm that aimed to enhance spectral changes (SCE) over time showed benefit for hearing-impaired (HI) listeners to recognize speech in background noise. In this work, the previous SCE was manipulated to…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-07 Xiang Li , Xin Tian , Henry Luo , Jinyu Qian , Xihong Wu , Dingsheng Luo , Jing Chen

Forward scatter radar (FSR) has emerged as an effective imaging modality for target detection, utilizing forward scattering (FS) signals to reconstruct two-dimensional shadow profile images of objects. However, real-world FS signals are…

Computational Physics · Physics 2025-08-18 ShuQi Lei , Gan Yu , Yuan Tian , XiaoWei Shao

Recurrent spiking neural networks (RSNNs) are a promising substrate for energy-efficient control policies, but training them for high-dimensional, long-horizon reinforcement learning remains challenging. Population-based, gradient-free…

Machine Learning · Computer Science 2026-01-30 Jinhao Li , Yuhao Sun , Zhiyuan Ma , Hao He , Xinche Zhang , Xing Chen , Jin Li , Sen Song

Existing leading methods for spectral reconstruction (SR) focus on designing deeper or wider convolutional neural networks (CNNs) to learn the end-to-end mapping from the RGB image to its hyperspectral image (HSI). These CNN-based methods…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Yuanhao Cai , Jing Lin , Zudi Lin , Haoqian Wang , Yulun Zhang , Hanspeter Pfister , Radu Timofte , Luc Van Gool

In this article, we address the problem of reducing the number of required samples for Spherical Near-Field Antenna Measurements (SNF) by using Compressed Sensing (CS). A condition to ensure the numerical performance of sparse recovery…

Information Theory · Computer Science 2023-02-10 Arya Bangun , Cosme Culotta-López

Advancements in adapting deep convolution architectures for Spiking Neural Networks (SNNs) have significantly enhanced image classification performance and reduced computational burdens. However, the inability of Multiplication-Free…

Neural and Evolutionary Computing · Computer Science 2024-04-29 Boyan Li , Luziwei Leng , Shuaijie Shen , Kaixuan Zhang , Jianguo Zhang , Jianxing Liao , Ran Cheng

The NMR spectra of paramagnetic substances can feature shifts over thousands of ppm. In high magnetic field instruments, this corresponds to extreme offsets, which make it challenging or impossible to achieve uniform excitation without…

Chemical Physics · Physics 2021-11-08 Enrico Ravera

X-ray phase-contrast imaging has become indispensable for visualizing samples with low absorption contrast. In this regard, speckle-based techniques have shown significant advantages in spatial resolution, phase sensitivity, and…

Image and Video Processing · Electrical Eng. & Systems 2022-01-20 Zhi Qiao , Xianbo Shi , Yudong Yao , Michael J. Wojcik , Luca Rebuffi , Mathew J. Cherukara , Lahsen Assoufid

In this work we propose a novel, highly practical, binocular photometric stereo (PS) framework, which has same acquisition speed as single view PS, however significantly improves the quality of the estimated geometry. As in recent neural…

Computer Vision and Pattern Recognition · Computer Science 2023-11-13 Fotios Logothetis , Ignas Budvytis , Roberto Cipolla

Neuromorphic vision sensors (event cameras) simulate biological visual perception systems and have the advantages of high temporal resolution, less data redundancy, low power consumption, and large dynamic range. Since both events and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-15 Haibo Shen , Juyu Xiao , Yihao Luo , Xiang Cao , Liangqi Zhang , Tianjiang Wang

Most speech enhancement algorithms make use of the short-time Fourier transform (STFT), which is a simple and flexible time-frequency decomposition that estimates the short-time spectrum of a signal. However, the duration of short STFT…

Sound · Computer Science 2015-09-03 Scott Wisdom , Thomas Powers , Les Atlas , James Pitton

Fourier ptychographic microscopy (FPM) is a computational imaging technique with both high resolution and large field-of-view. However, the effective numerical aperture (NA) achievable with a typical LED panel is ambiguous and usually…

Image and Video Processing · Electrical Eng. & Systems 2017-10-03 An Pan , Yan Zhang , Maosen Li , Meiling Zhou , Junwei Min , Ming Lei , Baoli Yao

Speech super-resolution (SR) reconstructs high-fidelity wideband speech from low-resolution inputs-a task that necessitates reconciling global harmonic coherence with local transient sharpness. While diffusion-based generative models yield…

Sound · Computer Science 2026-01-01 Jiajun Yuan , Xiaochen Wang , Yuhang Xiao , Yulin Wu , Chenhao Hu , Xueyang Lv

Spike cameras, leveraging spike-based integration sampling and high temporal resolution, offer distinct advantages over standard cameras. However, existing approaches reliant on spike cameras often assume optimal illumination, a condition…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Lin Zhu , Kangmin Jia , Yifan Zhao , Yunshan Qi , Lizhi Wang , Hua Huang

The inherent non-linearity of intensity correlation functions can be used to spatially distinguish identical emitters beyond the diffraction limit, as achieved, for example, in Super-Resolution Optical Fluctuation Imaging (SOFI). Here, we…

Optics · Physics 2024-12-18 Yifan Chen , Chieh Tsao , Hendrik Utzat

Physics-Informed Neural Networks (PINNs) are becoming a popular method for solving PDEs, due to their mesh-free nature and their ability to handle high-dimensional problems where traditional numerical solvers often struggle. Despite their…

Numerical Analysis · Mathematics 2025-08-26 Yuzhen Li , Liang Li , Stéphane Lanteri , Bin Li

Single-pixel imaging (SPI) is a promising imaging modality with distinctive advantages in strongly perturbed environments. Existing SPI methods lack physical sparsity constraints and overlook the integration of local and global features,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Jijun Lu , Yifan Chen , Libang Chen , Yiqiang Zhou , Ye Zheng , Mingliang Chen , Zhe Sun , Xuelong Li

The principle and experimental realization of a novel Raman spectroscopic technique entitled stimulated Raman phase shift (SRPS) spectroscopy was demonstrated. This technique depends on the measurement of the stimulated Raman scattering…

Optics · Physics 2024-03-07 Meng Qi , Wenrong Wang , Yuan-ji Li , Jin-xia Feng , Kuan-shou Zhang

Spiking neural networks (SNNs) are considered as a potential candidate to overcome current challenges such as the high-power consumption encountered by artificial neural networks (ANNs), however there is still a gap between them with…

Neural and Evolutionary Computing · Computer Science 2021-02-05 Qiang Yu , Chenxiang Ma , Shiming Song , Gaoyan Zhang , Jianwu Dang , Kay Chen Tan