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Hyperspectral imaging sensors are becoming increasingly popular in robotics applications such as agriculture and mining, and allow per-pixel thematic classification of materials in a scene based on their unique spectral signatures.…

Computer Vision and Pattern Recognition · Computer Science 2016-11-29 Lloyd Windrim , Rishi Ramakrishnan , Arman Melkumyan , Richard Murphy

We have studied numerically the spectral correlations in a metallic phase and at the metal-insulator transition. We have calculated directly the two-point correlation function of the density of states $R(s,s')$. In the metallic phase, it is…

Condensed Matter · Physics 2009-10-28 D. Braun , G. Montambaux

Wireless device classification techniques play a key role in promoting emerging wireless applications such as allowing spectrum regulatory agencies to enforce their access policies and enabling network administrators to control access and…

Signal Processing · Electrical Eng. & Systems 2020-04-24 Abdurrahman Elmaghbub , Bechir Hamdaoui

Resonance modes are intrinsic characteristics of objects when excited at those frequencies. Probing the resonance signatures can reveal useful information about material composition, geometry, presence of defects, and other characteristics…

Applied Physics · Physics 2020-07-02 S. Liao , S. Bakhtiari , T. Elmer , B. Lawrence , E. R. Koehl , N. Gopalsami , A. Raptis

This paper introduces sparse coding and dictionary learning for Symmetric Positive Definite (SPD) matrices, which are often used in machine learning, computer vision and related areas. Unlike traditional sparse coding schemes that work in…

Computer Vision and Pattern Recognition · Computer Science 2014-09-02 Mehrtash Harandi , Richard Hartley , Brian Lovell , Conrad Sanderson

A method for object classification that is based on distribution analysis is proposed. In addition, a method for finding relevant features and the unification of this algorithm with another classification algorithm is proposed. The…

Machine Learning · Computer Science 2021-11-09 Thomas Olschewski

We would like to present a comprehensive study on the classification of iron ore pellets, aimed at identifying quality violations in the final product, alongside the development of an innovative imagebased measurement method utilizing the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Artem Solomko , Oleg Kartashev , Andrey Golov , Mikhail Deulin , Vadim Valynkin , Vasily Kharin

The in situ synchrotron high-energy X-ray powder diffraction (XRD) technique is highly utilized by researchers to analyze the crystallographic structures of materials in functional devices (e.g., battery materials) or in complex sample…

Image and Video Processing · Electrical Eng. & Systems 2022-12-16 Howard Yanxon , James Weng , Hannah Parraga , Wenqian Xu , Uta Ruett , Nicholas Schwarz

Advanced artificial intelligence (AI) algorithms, particularly those based on artificial neural networks, have garnered significant attention for their potential applications in areas such as image recognition and natural language…

Optics · Physics 2025-03-03 Long Huang , Jianping Yao

Echocardiography (echo) is an indispensable tool in a cardiologist's diagnostic armamentarium. To date, almost all echocardiographic parameters require time-consuming manual labeling and measurements by an experienced echocardiographer and…

Image and Video Processing · Electrical Eng. & Systems 2020-11-26 Mohamed Y. Elwazir , Zeynettin Akkus , Didem Oguz , Jae K. Oh

Raman spectroscopy is frequently used to identify composition, structure and layer thickness of 2D materials. Here, we describe an efficient first-principles workflow for calculating resonant first-order Raman spectra of solids within…

Materials Science · Physics 2020-07-15 A. Taghizadeh , U. Leffers , T. G. Pedersen , K. S. Thygesen

Significant progress in many classes of materials could be made with the availability of experimentally-derived large datasets composed of atomic identities and three-dimensional coordinates. Methods for visualizing the local atomic…

With the help of micro-Doppler signature, ultra-wideband (UWB) through-the-wall radar (TWR) enables the reconstruction of range and velocity information of limb nodes to accurately identify indoor human activities. However, existing methods…

Signal Processing · Electrical Eng. & Systems 2024-08-23 Xiaopeng Yang , Weicheng Gao , Xiaodong Qu , Zeyu Ma , Hao Zhang

Coherent diffraction imaging enables the imaging of individual defects, such as dislocations or stacking faults, in materials.These defects and their surrounding elastic strain fields have a critical influence on the macroscopic properties…

Classification methods based on sparse estimation have drawn much attention recently, due to their effectiveness in processing high-dimensional data such as images. In this paper, a method to improve the performance of a sparse…

Machine Learning · Statistics 2018-10-24 Babak Barazandeh , Mohammadhussein Rafieisakhaei , Sunwook Kim , Zhenyu , Kong , Maury A. Nussbaum

Our hands reveal important information such as the pulsing of our veins which help us determine the blood pressure, tremors indicative of motor control, or neurodegenerative disorders such as Essential Tremor or Parkinson's disease. The…

Computer Vision and Pattern Recognition · Computer Science 2021-10-14 Ranjani Ramesh

Classification of an object behind a random and unknown scattering medium sets a challenging task for computational imaging and machine vision fields. Recent deep learning-based approaches demonstrated the classification of objects using…

Optics · Physics 2023-03-10 Yi Luo , Bijie Bai , Yuhang Li , Ege Cetintas , Aydogan Ozcan

Within first-principles density functional theory (DFT) frameworks, accurate but fast prediction of electronic structures of nanoparticles (NPs) remains challenging. Herein, we propose a machine-learning architecture to rapidly but…

Materials Science · Physics 2020-07-22 Kihoon Bang , Byung Chul Yeo , Donghun Kim , Sang Soo Han , Hyuck Mo Lee

Electrically-detected magnetic resonance (EDMR) provides a highly sensitive method for reading out the state of donor spins in silicon. The technique relies on a spin-dependent recombination (SDR) process involving dopant spins that are…

Mesoscale and Nanoscale Physics · Physics 2017-07-05 Lihuang Zhu , Kipp J. van Schooten , Mallory. L. Guy , Chandrasekhar Ramanathan

Bearing fault diagnosis in rotating machinery is critical for ensuring operational reliability, therefore early fault detection is essential to avoid catastrophic failures and expensive emergency repairs. Traditional methods like Fast…

Signal Processing · Electrical Eng. & Systems 2025-09-23 Dilshara Herath , Chinthaka Abeyrathne , Chamindu Adithya , Chathura Seneviratne