Petros Karvelis

ORCID: 0000-0002-0483-4868
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About
Contact & Profiles
Research Areas
  • Gene expression and cancer classification
  • Genomic variations and chromosomal abnormalities
  • Robotics and Sensor-Based Localization
  • Machine Fault Diagnosis Techniques
  • Chromosomal and Genetic Variations
  • Video Surveillance and Tracking Methods
  • Neonatal and fetal brain pathology
  • Advanced Vision and Imaging
  • Robotic Path Planning Algorithms
  • Time Series Analysis and Forecasting
  • Context-Aware Activity Recognition Systems
  • Energy Load and Power Forecasting
  • UAV Applications and Optimization
  • Image Enhancement Techniques
  • Coronary Interventions and Diagnostics
  • Non-Invasive Vital Sign Monitoring
  • EEG and Brain-Computer Interfaces
  • Structural Health Monitoring Techniques
  • Blind Source Separation Techniques
  • Muscle activation and electromyography studies
  • Hydrological Forecasting Using AI
  • Air Quality Monitoring and Forecasting
  • Music and Audio Processing
  • Smart Agriculture and AI
  • Meteorological Phenomena and Simulations

University of Ioannina
2008-2024

University of Western Macedonia
2022

Luleå University of Technology
2019-2021

ORCID
2021

University of Nebraska Medical Center
2016-2020

Research Academic Computer Technology Institute
2018-2019

Technological Educational Institute of Epirus
2013-2018

Centre for Technology Research & Innovation (Cyprus)
2018

Technological Educational Institute of the Ionian Islands
2013

Unmanned Aerial Vehicles are becoming part of many industrial applications. The advancements in battery technologies played a crucial for this trend. However, no matter what the are, all batteries have fixed capacity and after some time drain out. In order to extend flying window, prediction that will longer be able support condition is crucial. This fact can cast as standard Remaining Useful Life prognostic problem, similarly encountered fields. article, problem estimation battery, under...

10.1016/j.ifacol.2017.08.863 article EN IFAC-PapersOnLine 2017-07-01

One of the most common deficiencies currently existing induction motor fault diagnosis techniques is their lack automatization. Many them rely on qualitative interpretation results, a fact that requires significant user expertise, and makes implementation in portable condition monitoring devices difficult. In this paper, we present an automated method for detection number broken bars motor. The based transient analysis start-up current using wavelet approximation signal isolates...

10.1109/tii.2015.2463680 article EN IEEE Transactions on Industrial Informatics 2015-08-03

Corrosion, fatigue and corrosion-fatigue cracking are the most pervasive types of structural problems experienced by ship structures. These damage modes, can potentially lead to unanticipated out service time or catastrophic failure. Acoustic Emission is gaining ground as a complementary Structural Health Monitoring (SHM) technique, since it offer real-time detection. Deep learning, on other hand, has shown great success over last years for large number applications. In this paper, SHM hulls...

10.1080/17445302.2020.1735844 article EN Ships and Offshore Structures 2020-03-06

Multiplex fluorescent in situ hybridization M-FISH is a recently developed chromosome imaging technique where each class appears to have distinct color. This not only facilitates the detection of subtle chromosomal aberrations but also makes analysis images easier; both for human inspection and computerized analysis. In this paper, novel method segmentation classification presented. The based on multichannel watershed transform order define regions similar spatial spectral characteristics....

10.1109/tmi.2008.916962 article EN IEEE Transactions on Medical Imaging 2008-04-29

Eventual failures in induction machines may lead to catastrophic consequences terms of economic costs for the companies. The development reliable systems fault detection that enable diagnose a wide range faults is motivation many researchers worldwide. In this context, non-invasive condition monitoring strategies have drawn special attention since they do not require interfering with operation process machine. Though analysis motor currents has proven be reliable, methodology detect some...

10.1109/iecon.2014.7049001 article EN IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society 2014-10-01

Work from our laboratory documents pathological events, including myofiber oxidative damage and degeneration, myofibrosis, micro-vessel (diameter = 50–150 μm) remodeling, collagenous investment of terminal micro-vessels ≤ 15 µm) in the calf muscle patients with Peripheral Artery Disease (PAD). In this study, we evaluate hypothesis that vascular pathology associated legs PAD encompasses pathologic changes to smallest muscle. Biopsies were collected control subjects Fontaine Stage II IV PAD....

10.3390/jcm9082575 article EN Journal of Clinical Medicine 2020-08-08

Summary Objectives: The aim of the paper is to analyze transient events in inter-ictal EEG recordings, and classify epileptic activity into focal or generalized epilepsy using an automated method. Methods: A two-stage approach proposed. In first stage observed a single channel are classified four categories: spike (ES), muscle (EMG), eye blinking (EOG), sharp alpha (SAA). process based on artificial neural network. Different network architectures have been tried having lowest error has...

10.1055/s-0038-1634122 article EN Methods of Information in Medicine 2006-01-01

Intravascular ultrasound (IVUS) virtual histology (VH-IVUS) is a new technique, which provides automated plaque characterization in IVUS frames, using the backscattered RF-signals. However, its computation can only be performed once per cardiac cycle (ECG-gated technique), significantly decreases number of characterized frames. Also atherosclerotic plaques images that have been acquired by machines, are not equipped with VH software, cannot characterized. To address these limitations, we...

10.1109/titb.2011.2181529 article EN IEEE Transactions on Information Technology in Biomedicine 2011-12-23

The ever-increasing number of electronic content stored in digital libraries requires a significant amount effort cataloguing and has led to self-deposit solutions where the authors submit publish their own records. Even self-deposit, going through abstract assigning subject terms or keywords is time consuming expensive process, yet crucial for metadata quality record that affects retrieval. Therefore, an automatic, even semi-automatic process can recommend topics new entry huge practical...

10.1109/ijcnn.2018.8489513 article EN 2022 International Joint Conference on Neural Networks (IJCNN) 2018-07-01

This article presents a Convolutional Neural Network (CNN) method to enable autonomous navigation of low-cost Micro Aerial Vehicle (MAV) platforms along dark underground mine environments. The proposed CNN component provides online heading rate commands for the MAV by utilising image stream from on-board camera, thus allowing platform follow collision-free path tunnel axis. A novel part developed consists generation data-set used training CNN. More specifically, inspired single haze removal...

10.1109/iecon.2019.8927168 article EN IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society 2019-10-01

Wildlife conservationists have historically depended on manual methods for the identification and tracking of avian species, to monitor population dynamics discern potential threats. Nonetheless, many these techniques present inherent challenges time constraints. With advancement in computer vision techniques, automated bird detection recognition become possible. This study aimed further advance task detecting wild birds using with drone footage, as well entirely automating process tracking....

10.3390/drones8060259 article EN cc-by Drones 2024-06-12

M-FISH (multicolor fluorescence in situ hybridization) is a recently developed cytogenetic technique for cancer diagnosis and research on genetic disorders which uses 5 fluors to label uniquely each chromosome fluorescent DNA stain. In this paper, an automated method classification images presented. The image initially decomposed into set of primitive homogeneous regions through the morphological watershed transform applied intensity gradient magnitude. Each segmented area then classified...

10.1109/iembs.2006.260682 article EN International Conference of the IEEE Engineering in Medicine and Biology Society 2006-08-01

The evaluation and ranking of educational institutions are paramount importance to a wide range stakeholders, including students, faculty members, funding organizations, the themselves. Traditional systems, such as those provided by QS, ARWU, THE, have offered valuable insights into university performance employing variety indicators reflect institutional excellence across research, teaching, international outlook, more. However, these linear rankings may not fully capture multifaceted...

10.3390/data9050067 article EN cc-by Data 2024-05-11

Sensorimotor disturbances of the hand such as altered neuromuscular control and reduced proprioception have been reported for various musculoskeletal disorders. This can major impact on daily activities dressing, cooking manual work, especially when involving high demands precision therefore needs to be considered in assessment rehabilitation There is however a lack feasible accurate objective methods movement behavior, including tests, clinic today. The this observational cross- sectional...

10.1186/s12891-017-1764-1 article EN cc-by BMC Musculoskeletal Disorders 2017-09-26

Wildlife conservationists have traditionally relied on manual identification and tracking of bird species to monitor populations identify potential threats. However, many these techniques may prove be time-consuming. With the advancement computer vision techniques, automated detection recognition become possible. In this manuscript, we present an application object-detection model for identifying wild in natural environments. We used a dataset images captured trained YOLOv4 detect with high...

10.3390/app13137787 article EN cc-by Applied Sciences 2023-06-30

In this paper we propose the use of Intelligent Icons for both automatic assessment and representation asynchronous machines' condition. The method focuses on analysis start-up current isolation a component that is able to pinpoint faulty signatures. based application Empirical Mode Decomposition (EMD) which acts as an adaptive filter during start up subsequently Symbolic Aggregate approXimation (SAX) transformation extracted into symbolic representation. Using representation, automated...

10.1109/iecon.2013.6700038 article EN IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society 2013-11-01
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