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The objective of our study is to observe dynamics of multiple substances in vivo with high temporal resolution from multi-spectral magnetic resonance spectroscopic imaging (MRSI) data. The multi-spectral MRSI can effectively separate…

信号处理 · 电气工程与系统科学 2024-03-04 Utako Yamamoto , Hirohiko Imai , Kei Sano , Masayuki Ohzeki , Tetsuya Matsuda , Toshiyuki Tanaka

Recovering a function from its spherical Radon transform with centers of spheres of integration restricted to a hypersurface is at the heart of several modern imaging technologies, including SAR, ultrasound imaging, and photo- and…

数值分析 · 数学 2016-07-19 Markus Haltmeier , Sunghwan Moon

Wavelet functions allow the sparse and efficient representation of a signal at different scales. Recently the application of wavelets to the denoising of maps of cosmic microwave background (CMB) fluctuations has been proposed. The…

天体物理学 · 物理学 2009-11-07 Klaus Maisinger , M. P. Hobson , A. N. Lasenby

Synthetic Aperture Radar (SAR) imagery enables all-weather, day-and-night Earth observation; however, it remains difficult to interpret due to speckle noise and other intrinsic imaging artifacts. Sentinel-1 (S1) constitutes one of the most…

计算机视觉与模式识别 · 计算机科学 2026-05-29 Juan Francisco Amieva , Christian Ayala , Roberto Del Prete , Mikel Galar

We generalize the well-known mixtures of Gaussians approach to density estimation and the accompanying Expectation--Maximization technique for finding the maximum likelihood parameters of the mixture to the case where each data point…

统计方法学 · 统计学 2011-08-01 Jo Bovy , David W. Hogg , Sam T. Roweis

Spatial regression of random fields based on potentially biased sensing information is proposed in this paper. One major concern in such applications is that since it is not known a-priori what the accuracy of the collected data from each…

信号处理 · 电气工程与系统科学 2020-09-04 Qikun Xiang , Ido Nevat , Gareth W. Peters

The mid-infrared region is crucial for elucidating the unique biochemical signatures of microorganisms. The MIR resonant structures turned out to facilitate exceptional performance owing to the enhance electric field confinement in the…

介观与纳米尺度物理 · 物理学 2024-11-15 Pooja Sudha , Anil kumar , Kunal Dhankar , Khalid Ansari , Sugata Hazra , Arup Samanta

The development and first applications of a new periodic energy decomposition analysis (pEDA) scheme for extended systems based on the Kohn-Sham approach to density functional theory are described. The pEDA decomposes the binding energy…

化学物理 · 物理学 2015-05-19 Marc Raupach , Ralf Tonner

A long-standing issue in solar ground-based observations has been the contamination of data due to stray light, which is particularly relevant in inversions of spectropolarimetric data. We aim to build on a statistical method of correcting…

太阳与恒星天体物理 · 物理学 2021-12-07 Sudharshan Saranathan , Michiel van Noort , Sami K. Solanki

Images of near-field SAR contains spatial-variant sidelobes and clutter, subduing the image quality. Current image restoration methods are only suitable for small observation angle, due to their assumption of 2D spatial-invariant…

信号处理 · 电气工程与系统科学 2022-10-06 Wensi Zhang , Xiaoling Zhang , Xu Zhan , Yuetonghui Xu , Jun Shi , Shunjun Wei

We describe the application of Semantic Segmentation by using the Self Organizing Map technique to an high spatial and spectral resolution dataset acquired along the H$\alpha$ line at 656.28 nm by the Interferometric Bi-dimensional…

太阳与恒星天体物理 · 物理学 2021-04-21 Schillirò Francesco , Romano Paolo

A field theoretic description for inclusive semileptonic B meson decays is formulated. We argue that large regions of the phase spaces for the decays are dominated by distances near the light cone. The light-cone dominance allows to…

高能物理 - 唯象学 · 物理学 2007-05-23 C. H. Jin , E. A. Paschos

Diffusion models (DMs) have exhibited remarkable efficacy in various image restoration tasks. However, existing approaches typically operate within the high-dimensional pixel space, resulting in high computational overhead. While methods…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Yang Zheng , Wen Li , Zhaoqiang Liu

A novel technique based on machine learning is introduced to reconstruct the decays of highly Lorentz-boosted particles. Using an end-to-end deep learning strategy, the technique bypasses existing rule-based particle reconstruction methods…

高能物理 - 实验 · 物理学 2023-10-04 CMS Collaboration

This paper proposes a CS scheme that exploits the representational power of restricted Boltzmann machines and deep learning architectures to model the prior distribution of the sparsity pattern of signals belonging to the same class. The…

机器学习 · 计算机科学 2017-08-02 Luisa F. Polania , Kenneth E. Barner

Boron Neutron Capture Therapy (BNCT) is an innovative binary form of radiation therapy with high selectivity towards cancer tissue based on the neutron capture reaction 10B(n,$\alpha$)7Li, consisting in the exposition of patients to neutron…

Consider the problem where a statistician in a two-node system receives rate-limited information from a transmitter about marginal observations of a memoryless process generated from two possible distributions. Using its own observations,…

信息论 · 计算机科学 2017-03-02 Gil Katz , Pablo Piantanida , Mérouane Debbah

We investigate phaseless inverse scattering problem for the Schr\"odinger equation and develop reconstruction methods based on the inverse Born series (IBS). We consider three types of phaseless data: the far-field total field, the total…

数学物理 · 物理学 2026-05-25 John C. Schotland , Shenwen Yu

Motivated by recent developments in perturbative calculations of the nonlinear evolution of large-scale structure, we present an iterative algorithm to reconstruct the initial conditions in a given volume starting from the dark matter…

宇宙学与河外天体物理 · 物理学 2020-12-01 Marcel Schmittfull , Tobias Baldauf , Matias Zaldarriaga

Bridging the gap between data-rich training regimes and observation-sparse deployment conditions remains a central challenge in spatiotemporal field reconstruction, particularly when target domains exhibit distributional shifts,…

机器学习 · 计算机科学 2026-01-30 Xingyue Zhang , Yuxuan Bao , Mars Liyao Gao , J. Nathan Kutz
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