V. Ghenescu
A5008453296- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Particle physics theoretical and experimental studies
- Particle Accelerators and Free-Electron Lasers
- Advanced Semiconductor Detectors and Materials
- Chalcogenide Semiconductor Thin Films
- Silicon and Solar Cell Technologies
- Image and Signal Denoising Methods
- Advanced Neural Network Applications
- Advanced X-ray Imaging Techniques
- Laser-Plasma Interactions and Diagnostics
- Advanced Data Compression Techniques
- Blind Source Separation Techniques
- Dark Matter and Cosmic Phenomena
- Video Surveillance and Tracking Methods
- Advanced Image and Video Retrieval Techniques
- Face and Expression Recognition
- Digital Media Forensic Detection
- Remote Sensing and Land Use
- Face recognition and analysis
- Spectroscopy and Chemometric Analyses
- Organic Electronics and Photovoltaics
- solar cell performance optimization
- Metallurgical and Alloy Processes
- Industrial Vision Systems and Defect Detection
Institute of Space Science - INFLPR Subsidiary
2011-2022
Max Planck Society
2019
University of Bucharest
2011-2012
The Compact Linear Collider (CLIC) is an option for a future $${\mathrm{e}^{+}}{\mathrm{e}^{-}} $$ collider operating at centre-of-mass energies up to $$3\,\text {TeV} , providing sensitivity wide range of new physics phenomena and precision measurements the energy frontier. This paper first comprehensive presentation Higgs reach CLIC three stages: $$\sqrt{s} = 350\,\text {GeV} 1.4 . initial stage operation allows study boson production in Higgsstrahlung ( \rightarrow {\mathrm{Z}}...
Abstract This Technical Design Report presents a detailed description of all aspects the LUXE (Laser Und XFEL Experiment), an experiment that will combine high-quality and high-energy electron beam European with high-intensity laser, to explore uncharted terrain strong-field quantum electrodynamics characterised by both high energy intensity, reaching Schwinger field beyond. The further implications for search physics beyond Standard Model are also discussed.
This paper summarizes the physics potential of CLIC high-energy e+e- linear collider. It provides input to Snowmass 2013 process for energy-frontier working groups on The Higgs Boson (HE1), Precision Study Electroweak Interactions (HE2), Fully Understanding Top Quark (HE3), as well Path Beyond Standard Model -- New Particles, Forces, and Dimensions (HE4). is accompanied by a describing accelerator study, submitted Frontier Capabilities group process.
This Technical Design Report presents a detailed description of all aspects the LUXE (Laser Und XFEL Experiment), an experiment that will combine high-quality and high-energy electron beam European with high-intensity laser, to explore uncharted terrain strong-field quantum electrodynamics characterised by both high energy intensity, reaching Schwinger field beyond. The further implications for search physics beyond Standard Model are also discussed.
Detector-plane prototypes of the very forward calorimetry a future detector at an e+e− collider have been built and their performance was measured in electron beam. The plane comprises silicon or GaAs pad sensors, dedicated front-end ADC ASICs, FPGA for data concentration. Measurements signal-to-noise ratio response as function position sensor are presented. A deconvolution method is successfully applied, comparison shower shape absorber depth with Monte-Carlo simulation given.
Facial recognition is a very on-demand task today. What makes racial detection and system good its robustness to changes in illumination, rotation tilt, position occlusion. In this paper we present face trained on proprietary datatabase. Our method based YOLO (You Only Look Once) model, which general object system, that by modifying testing different internal parameters have proven it be adequate for recognition. The database was created especially project, with images featuring 10 subjects,...
The Compact Linear Collider (CLIC) is a high-energy high-luminosity linear electron-positron collider under development. It foreseen to be built and operated in three stages, at centre-of-mass energies of 380 GeV, 1.5 TeV 3 TeV, respectively. offers rich physics program including direct searches as well the probing new through broad set precision measurements Standard Model processes, particularly Higgs-boson top-quark sectors. required for such specific conditions imposed by beam dimensions...
A new design of a detector plane sub-millimetre thickness for an electromagnetic sampling calorimeter is presented. It intended to be used in the luminometers LumiCal and BeamCal future linear $e^+e^-$ collider experiments. The planes were produced utilising novel connectivity scheme technologies. They installed compact prototype tested at DESY with electron beam energy 1-5 GeV. performance comprising eight was studied. effective Moli`ere radius 5 GeV determined (8.1 +/- 0.1 (stat) 0.3...
In this paper we will present what is the General Data Protection Regulation (GDPR) and its impact on businesses that use market video surveillance systems. We detail regulations guidelines of both GDPR European Supervisor (EDPS) regarding recording processing personal sensitive data why it classified as high-risk. consider these laws field are operating in, namely machine learning applied for analytics. To do that, briefly two our applications affected by those changes: Facial Recognition...
This paper presents a method for detecting objects on long range thermal images. problem is extremely complicated due to the low resolution of these images, and fact that we want detect have areas as small 50 pixels. In order solve this developed, trained tested large number (2640) variations state art algorithm visible camera object detection, called YOLO Darknet - You Only Look Once Darknet. The succeeds in showing deep neural network can be adapted work images and, furthermore, it proves...
A prototype of a luminometer, designed for future $$e^+e^-$$ collider detector, and consisting at present four-plane module, was tested in the CERN PS accelerator T9 beam. The objective this beam test to demonstrate multi-plane tungsten/silicon operation, study development electromagnetic shower compare it with MC simulations. Molière radius has been determined be 24.0 ± 0.6 (stat.) 1.5 (syst.) mm using parametrization shape. Very good agreement found between data detailed Geant4 simulation.
This paper presents an interface designed for the Darknet neural network, used by state of art YOLO (You Only Look Once) models. The object detection is still representing a challenge in field computer vision, and this has main purpose providing way to generate more easily new networks, order obtain desired system. Furthermore, through interface, it can be generated displayed feature maps at any point network. Therefore, presented paper, leads better understanding how network makes certain...
A prototype of a luminometer, designed for future e+e- collider detector, was tested in the CERN PS accelerator T9 testbeam. The objective this test beam to demonstrate multi-plane operation, study development electromagnetic shower and compare it with MC simulations.
This paper presents an innovative method for salt and pepper noise removal, by combining neural networks, evolutive statistical methods. The network used to detect the pixels affected is Pulse Coupled Neural Network, whose parameters have been optimized using a Genetic Algorithm. that are corrected Gaussian Kernel. algorithm proves be very efficient of removing from images without compromising quality unaffected pixels. has tested on Mars rover. These tests show how image retains fine...
The paper presents an original neural network approach for region of interest detection and classification in multi-spectral satellite images. proposed method uses a sequence Pulse Coupled Neural Networks that identifies plausible regions interest. These are passed to dimension reduction algorithm, Principle Component Analysis, order generate the input data Support Vector Machine classifier, validates data. algorithm's parameters optimized using Genetic Algorithm. algorithm is designed...