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We present a light field imaging system that captures multiple views of an object with a single shot. The system is designed to maximize the total light collection by accepting a larger solid angle of light than a conventional lens with…

One key feature of massive multiple-input multiple-output systems is the large number of antennas and users. As a result, reducing the computational complexity of beamforming design becomes imperative. To this end, the goal of this paper is…

信息论 · 计算机科学 2019-02-08 Shuai Wang , Lei Cheng , Minghua Xia , Yik-Chung Wu

This work proposes a multimodal diffeomorphic registration method using Neural Ordinary Differential Equations (Neural ODEs). Nonrigid registration algorithms exhibit tradeoffs between their accuracy, the computational complexity of their…

计算机视觉与模式识别 · 计算机科学 2025-12-30 Salvador Rodriguez-Sanz , Monica Hernandez

The optical resolution of a digital camera is one of its most crucial parameters with broad relevance for consumer electronics, surveillance systems, remote sensing, or medical imaging. However, resolution is physically limited by the…

计算机视觉与模式识别 · 计算机科学 2018-12-27 Thomas Köhler

Magnetic Resonance Imaging (MRI) is instrumental in clinical diagnosis, offering diverse contrasts that provide comprehensive diagnostic information. However, acquiring multiple MRI contrasts is often constrained by high costs, long…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Sanuwani Dayarathna , Kh Tohidul Islam , Bohan Zhuang , Guang Yang , Jianfei Cai , Meng Law , Zhaolin Chen

Matter-wave interferometers are, in principle, orders of magnitude more sensitive than their optical counterparts. Nevertheless, creation of matter-wave currents to achieve such a sensitivity is a continuing challenge. Here, we propose the…

量子物理 · 物理学 2009-07-08 Sulakshana Thanvanthri , Kishore T. Kapale , Jonathan P. Dowling

Impressive pictures of moving Bose-Einstein condensates have been taken using phase-contrast imaging M. R. Andrews et al., Science 273, 84 (1996). We calculate the quantum backaction of this measurement technique. We find that…

量子物理 · 物理学 2009-10-31 U. Leonhardt , T. Kiss , P. Piwnicki

Multimodal remote sensing image registration aligns images from different sensors for data fusion and analysis. However, existing methods often struggle to extract modality-invariant features when faced with large nonlinear radiometric…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Xiaochen Wei , Weiwei Guo , Wenxian Yu , Feiming Wei , Dongying Li

Terahertz subwavelength imaging aims at developing THz microscopes able to resolve deeply subwavelength features. To improve the spatial resolution beyond the diffraction limit, a current trend is to use various subwavelength probes to…

光学 · 物理学 2019-12-11 Hichem Guerboukha , Yang Cao , Kathirvel Nallappan , Maksim Skorobogatiy

The study of astronomical phenomena through ground-based observations is always challenged by the distorting effects of Earth's atmosphere. Traditional methods of post-facto image correction, essential for correcting these distortions,…

天体物理仪器与方法 · 物理学 2024-08-14 A. Asensio Ramos

Archetypal scenarios for change detection generally consider two images acquired through sensors of the same modality. However, in some specific cases such as emergency situations, the only images available may be those acquired through…

计算机视觉与模式识别 · 计算机科学 2016-09-21 Vinicius Ferraris , Nicolas Dobigeon , Qi Wei , Marie Chabert

High-sensitivity imaging of ultracold atoms is often challenging when interference patterns are imprinted on the imaging light. Such image noises result in low signal-to-noise ratio and limit the capability to extract subtle physical…

量子气体 · 物理学 2020-09-09 Bo Song , Chengdong He , Zejian Ren , Entong Zhao , Jeongwon Lee , Gyu-Boong Jo

Cold atoms are promising platforms for metrology and quantum computation, yet their many-body dynamics remains largely unexplored. We here investigate Rabi oscillations from optically-thick cold clouds, driven by high-intensity coherent…

原子物理 · 物理学 2026-01-15 Mateus A. F. Biscassi , Robin Kaiser , Mathilde Hugbart , Romain Bachelard

Correlating the signals from simultaneous atom interferometers has enabled some of the most precise determinations of fundamental constants. Here, we show that multiple interferometers with strategically chosen initial conditions ("offset…

原子物理 · 物理学 2020-05-20 Weicheng Zhong , Richard H. Parker , Zachary Pagel , Chenghui Yu , Holger Müller

We study the effects of decoherence in the form of optical phase diffusion, photon loss and gain, and atomic dephasing in entangled atomic ensembles produced via quantum nondemolition (QND) measurements. For the optical decoherence…

Novel optical imaging devices allow for hybrid acquisition modalities such as compressed acquisitions with locally different spatial and spectral resolutions captured by a single focal plane array. In this work, we propose to model the…

图像与视频处理 · 电气工程与系统科学 2023-04-12 Daniele Picone , Mauro Dalla Mura , Laurent Condat

Exact diagonalization techniques are a powerful method for studying many-body problems. Here, we apply this method to systems of few bosons in an optical lattice, and use it to demonstrate the emergence of interesting quantum phenomena like…

量子气体 · 物理学 2017-05-22 David Raventós , Tobias Graß , Maciej Lewenstein , Bruno Juliá-Díaz

The paper proposes a new technique that substantially improves blind digital modulation identification (DMI) algorithms that are based on higher-order statistics (HOS). The proposed technique takes advantage of noise power estimation to…

信号处理 · 电气工程与系统科学 2021-02-23 Sofiane Kharbech , Eric Pierre Simon , Akram Belazi , Wei Xiang

Medical imaging is nowadays a pillar in diagnostics and therapeutic follow-up. Current research tries to integrate established - but ionizing - tomographic techniques with technologies offering reduced radiation exposure. Diffuse Optical…

数值分析 · 数学 2024-02-15 Alessandro Benfenati , Paola Causin , Martina Quinteri

Reliably and physically accurately transferring information between images through deformable image registration with large anatomical differences is an open challenge in medical image analysis. Most existing methods have two key…

计算机视觉与模式识别 · 计算机科学 2023-03-13 Georgios Andreadis , Peter A. N. Bosman , Tanja Alderliesten