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Feature extraction is a critical technology to realize the automatic transmission of feature information throughout product life cycles. As CAD models primarily capture the 3D geometry of products, feature extraction heavily relies on…

计算机视觉与模式识别 · 计算机科学 2024-06-28 Peng Xu , Qi Gao , Ying-Jie Wu

Ultrasound and radar signals are highly beneficial for medical imaging as they are non-invasive and non-ionizing. Traditional imaging techniques have limitations in terms of contrast and physical interpretation. Quantitative medical imaging…

计算机视觉与模式识别 · 计算机科学 2024-02-19 Tom Sharon , Yonina C. Eldar

Neural signals are characterized by rich temporal and spatiotemporal dynamics that reflect the organization of cortical networks. Theoretical research has shown how neural networks can operate at different dynamic ranges that correspond to…

神经元与认知 · 定量生物学 2017-07-05 Luca Ambrogioni , Marcel A. J. van Gerven , Eric Maris

Received signal strength based radio tomographic imaging is a popular device-free indoor localization method which reconstructs the spatial loss field of the environment using measurements from a dense wireless network. Existing methods…

新兴技术 · 计算机科学 2016-04-12 Hüseyin Yiğitler , Riku Jäntti , Ossi Kaltiokallio , Neal Patwari

Holotomography, a three-dimensional quantitative phase imaging technique, presents an innovative, non-invasive approach to studying biological samples by exploiting the refractive index as an intrinsic imaging contrast. Despite offering…

光学 · 物理学 2023-08-04 Herve Hugonnet , HyunJun Han , Weisun Park , YongKeun Park

This paper introduces coordinate-independent methods for analysing multiscale dynamical systems using numerical techniques based on the transfer operator and its adjoint. In particular, we present a method for testing whether an arbitrary…

动力系统 · 数学 2014-09-30 Gary Froyland , Georg A. Gottwald , Andy Hammerlindl

To improve the performance in identifying the faults under strong noise for rotating machinery, this paper presents a dynamic feature reconstruction signal graph method, which plays the key role of the proposed end-to-end fault diagnosis…

信号处理 · 电气工程与系统科学 2023-10-02 Wenbin He , Jianxu Mao , Yaonan Wang , Zhe Li , Qiu Fang , Haotian Wu

We demonstrate the application of the Dynamic Mode Decomposition (DMD) for the diagnostic analysis of the nonlinear dynamics of a magnetized plasma in resistive magnetohydrodynamics. The DMD method is an ideal spatio-temporal matrix…

等离子体物理 · 物理学 2018-05-23 Roy Taylor , J. Nathan Kutz , Kyle Morgan , Brian Nelson

In real-world scenarios, different features have different acquisition costs at test-time which necessitates cost-aware methods to optimize the cost and performance trade-off. This paper introduces a novel and scalable approach for…

机器学习 · 计算机科学 2018-12-10 Mohammad Kachuee , Sajad Darabi , Babak Moatamed , Majid Sarrafzadeh

With the increasing demand for real-time animated 3D content in the entertainment industry and beyond, performance-based animation has garnered interest among both academic and industrial communities. While recent solutions for…

图形学 · 计算机科学 2020-08-05 Eloïse Berson , Catherine Soladié , Nicolas Stoiber

Lung cancer is the leading cause for cancer related deaths. As such, there is an urgent need for a streamlined process that can allow radiologists to provide diagnosis with greater efficiency and accuracy. A powerful tool to do this is…

计算机视觉与模式识别 · 计算机科学 2017-03-29 Devinder Kumar , Mohammad Javad Shafiee , Audrey G. Chung , Farzad Khalvati , Masoom A. Haider , Alexander Wong

We propose a dimension reduction framework for feature extraction and moment reconstruction in dynamical systems that operates on spaces of probability measures induced by observables of the system rather than directly in the original data…

机器学习 · 统计学 2020-04-07 Suddhasattwa Das , Dimitrios Giannakis , Enikő Székely

A novel approach to improving the performances of confocal scanning imaging is proposed. We experimentally demonstrate its feasibility using acoustic waves. It relies on a new way to encode spatial information using the temporal dimension.…

Complex systems are commonly modeled using nonlinear dynamical systems. These models are often high-dimensional and chaotic. An important goal in studying physical systems through the lens of mathematical models is to determine when the…

计算几何 · 计算机科学 2014-03-25 Jesse Berwald , Marian Gidea , Mikael Vejdemo-Johansson

Dynamic Mode Decomposition (DMD) is a model-order reduction approach, whereby spatial modes of fixed temporal frequencies are extracted from numerical or experimental data sets. The DMD low-rank or reduced operator is typically obtained by…

数值分析 · 数学 2023-01-25 Quincy A. Huhn , Mauricio E. Tano , Jean C. Ragusa , Youngsoo Choi

The healthcare domain is characterized by heterogeneous data modalities, such as imaging and physiological data. In practice, the variety of medical data assists clinicians in decision-making. However, most of the current state-of-the-art…

图像与视频处理 · 电气工程与系统科学 2021-11-05 Nasir Hayat , Krzysztof J. Geras , Farah E. Shamout

For extracting meaningful topics from texts, their structures should be considered properly. In this paper, we aim to analyze structured time-series documents such as a collection of news articles and a series of scientific papers, wherein…

计算与语言 · 计算机科学 2018-05-08 Rem Hida , Naoya Takeishi , Takehisa Yairi , Koichi Hori

The oscillations observed in many time series, particularly in biomedicine, exhibit morphological variations over time. These morphological variations are caused by intrinsic or extrinsic changes to the state of the generating system,…

应用统计 · 统计学 2021-03-30 Yu-Ting Lin , John Malik , Hau-Tieng Wu

Performing magnetic resonance imaging (MRI) reconstruction from under-sampled k-space data can accelerate the procedure to acquire MRI scans and reduce patients' discomfort. The reconstruction problem is usually formulated as a denoising…

图像与视频处理 · 电气工程与系统科学 2023-12-11 Tianqi Xiang , Wenjun Yue , Yiqun Lin , Jiewen Yang , Zhenkun Wang , Xiaomeng Li

Multiple time scale stochastic dynamical systems are ubiquitous in science and engineering, and the reduction of such systems and their models to only their slow components is often essential for scientific computation and further analysis.…