Wyniki wyszukiwania dla: video-assisted dentistry

• PEDIATRIC DENTISTRY

  Czasopisma

  ISSN: 0164-1263 , eISSN: 1942-5473

• Dentistry Journal

  Czasopisma

  eISSN: 2304-6767

• OPERATIVE DENTISTRY

  Czasopisma

  ISSN: 0361-7734 , eISSN: 1559-2863

• Towards Cognitive and Perceptive Video Systems

  Publikacja

  • T. Akgun
  • C. Attwood
  • A. Cavallaro
  • C. Fabre
  • F. Poiesi
  • P. Szczuko

  - Rok 2014

  In this chapter we cover research and development issues related to smart cameras. We discuss challenges, new technologies and algorithms, applications and the evaluation of today’s technologies. We will cover problems related to software, hardware, communication, embedded and distributed systems, multi-modal sensors, privacy and security. We also discuss future trends and market expectations from the customer’s point of view.

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• Multi-Stage Video Analysis Framework

  Publikacja

  • A. Czyewski
  • G. Szwoch
  • P. Dalka
  • P. Szczuko
  • A. Ciarkowski
  • D. Ellwart
  • T. Merta
  • K. opatka
  • u. Kulasek
  • J. Wolski

  - Rok 2011

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• Improving methods for detecting people in video recordings using shifting time-windows

  Publikacja

  • A. Blokus
  • H. Krawczyk

  - Rok 2018

  We propose a novel method for improving algorithms which detect the presence of people in video sequences. Our focus is on algorithms for applications which require reporting and analyzing all scenes with detected people in long recordings. Therefore one of the target qualities of the classification result is its stability, understood as a low number of invalid scene boundaries. Many existing methods process images in the recording...

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• Quarterly Review of Film and Video

  Czasopisma

  ISSN: 1050-9208

• Video Journal of Education and Pedagogy

  Czasopisma

  eISSN: 2364-4583

• Automated Classifier Development Process for Recognizing Book Pages from Video Frames

  Publikacja

  • A. Brzeski
  • J. Cychnerski
  • K. Draszawka
  • K. Dziubich
  • T. Dziubich
  • W. Korłub
  • P. Rościszewski

  - Communications in Computer and Information Science - Rok 2020

  One of the latest developments made by publishing companies is introducing mixed and augmented reality to their printed media (e.g. to produce augmented books). An important computer vision problem that they are facing is classification of book pages from video frames. The problem is non-trivial, especially considering that typical training data is limited to only one digital original per book page, while the trained classifier...

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• Model Assisted Statistics and Applications

  Czasopisma

  ISSN: 1574-1699

• JOURNAL OF COMPUTER ASSISTED LEARNING

  Czasopisma

  ISSN: 0266-4909 , eISSN: 1365-2729

• Spatial Calibration of a Dual PTZ-Fixed Camera System for Tracking Moving Objects in Video

  Publikacja

  • G. Szwoch
  • P. Dalka
  • A. Czyżewski

  - JOURNAL OF IMAGING SCIENCE AND TECHNOLOGY - Rok 2013

  A dual camera setup is proposed, consisting of a fixed (stationary) camera and a pan-tilt-zoom (PTZ) camera, employed in an automatic video surveillance system. The PTZ camera is zoomed in on a selected point in the fixed camera view and it may automatically track a moving object. For this purpose, two camera spatial calibration procedures are proposed. The PTZ camera is calibrated in relation to the fixed camera image, using interpolated...

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• Predicting emotion from color present in images and video excerpts by machine learning

  Publikacja

  • A. Wędołowska
  • D. Weber
  • B. Kostek

  - IEEE Access - Rok 2023

  This work aims at predicting emotion based on the colors present in images and video excerpts using a machine-learning approach. The purpose of this paper is threefold: (a) to develop a machine-learning algorithm that classifies emotions based on the color present in an image, (b) to select the best-performing algorithm from the first phase and apply it to film excerpt emotion analysis based on colors, (c) to design an online survey...

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• Parallel implementation of background subtraction algorithms for real-time video processing on a supercomputer platform

  Publikacja

  • G. Szwoch
  • D. Ellwart
  • A. Czyżewski

  - Journal of Real-Time Image Processing - Rok 2016

  Results of evaluation of the background subtraction algorithms implemented on a supercomputer platform in a parallel manner are presented in the paper. The aim of the work is to chose an algorithm, a number of threads and a task scheduling method, that together provide satisfactory accuracy and efficiency of a real-time processing of high resolution camera images, maintaining the cost of resources usage at a reasonable level. Two...

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• Video Cloud Services for Hospitals: Designing an End-to-End Cloud Service Platform for Medical Video Storage and Secure Access

  Publikacja

  • P. Pawałowski
  • C. Mazurek
  • M. Leszczuk
  • J. Moureaux
  • A. Chaabouni

  - JMIR Biomedical Engineering - Rok 2020

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• Psychotherapy assisted with mobile applications

  Publikacja

  • M. Szymański
  • K. Pastuszak

  - Roczniki Kolegium Analiz Ekonomicznych - Rok 2018

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• Quaternion Encryption Method for Image and Video Transmission

  Publikacja

  • M. Dzwonkowski
  • R. Rykaczewski

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Rok 2013

  Quaternions are hyper-complex numbers of rank 4. They are often applied to mechanics in 3D space and are considered to be one of the best ways of representing rotations. In this paper a quaternion encryption method, based on algorithm by Nagase et al. (2004) has been proposed. According to a computer-based simulation the results of the performed research yield a high level of security, which is additionally strengthened by the...

• Application of crowdfunding to video game projects financing

  Publikacja

  • K. Szopik-Depczyńska
  • A. Kędzierska-Szczepaniak
  • K. Szczepaniak

  - Procedia Computer Science - Rok 2020

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• Rheology of potato starch chemically modified with microwave-assisted reactions

  Publikacja

  • H. Staroszczyk
  • M. Fiedorowicz
  • J. Opalińska-Piskorz
  • R. Tylingo

  - LWT-FOOD SCIENCE AND TECHNOLOGY - Rok 2013

  Native potato starch was sulfated, selenated, borated, silicated and zincatated by means of microwave-assisted reactions with varying doses of relevant reagents. Resulting products were characterized involving rheological behavior of pastes, their weight-average molecular weight (Mw), and radius of gyration (Rg). Most of the pastes showed shear-thinning behavior, with the flow behavior index (n) below unity. The pastes of starch...

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• New Aspects of Virtual Sound Source Localization Research—Impact of Visual Angle and 3-D Video Content on Sound Perception

  Publikacja

  • B. Kunka
  • B. Kostek

  - JOURNAL OF THE AUDIO ENGINEERING SOCIETY - Rok 2013

  The influence of image on virtual sound source localization, called the “image proximity effect” or the “ventriloquism effect”, is a well known phenomenon. This paper focuses on other aspects related to this effect, namely the impact of the visual angle of the presented object and 3D video content on sound perception. The research conducted confirmed that the visual angle of the presented object determines the image proximity effect...

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• Complementarity between entanglement-assisted and quantum distributed random access code

  Publikacja

  • A. Hameedi
  • D. Saha
  • P. A. Mironowicz
  • M. Pawłowski
  • M. Bourennane

  - PHYSICAL REVIEW A - Rok 2017

  Collaborative communication tasks such as random access codes (RACs) employing quantum resources have manifested great potential in enhancing information processing capabilities beyond the classical limitations. The two quantum variants of RACs, namely, quantum random access code (QRAC) and the entanglement-assisted random access code (EARAC), have demonstrated equal prowess for a number of tasks. However, there do exist specific...

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• Fast surrogate-assisted frequency scaling of planar antennas with circular polarisation

  Publikacja

  • S. Kozieł
  • A. Bekasiewicz

  - IET Microwaves Antennas & Propagation - Rok 2019

  In this work, the problem of computationally efficient frequency scaling (re-design) of circular polarisation antennas is addressed using surrogate-assisted techniques. The task is challenging and requires the identification of the optimum geometry parameters to enable the operation of the re-designed structure at a selected (required) centre frequency. This involves handling several performance figures such as the antenna gain,...

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• Optimum Choice of Randomly Oriented Carbon Nanotube Networks for UV-Assisted Gas Sensing Applications

  Publikacja

  • K. Drozdowska
  • A. Rehman
  • J. Smulko
  • A. Krajewska
  • B. Stonio
  • P. Sai
  • A. Przewłoka
  • M. Filipiak
  • K. Pavłov
  • G. Cywinski... i 2 innych

  - ACS Sensors - Rok 2023

  We investigated the noise and photoresponse characteristics of various optical transparencies of nanotube networks to identify an optimal randomly oriented network of carbon nanotube (CNT)-based devices for UV-assisted gas sensing applications. Our investigation reveals that all of the studied devices demonstrate negative photoconductivity upon exposure to UV light. Our studies confirm the effect of UV irradiation on the electrical...

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• Structural and mechanical properties of hydroxyapatite coatings formed by ion-beam assisted deposition

  Publikacja

  • A. Zykova
  • V. Safanov
  • S. Dudin
  • S. Yakovin
  • N. Donkov
  • M. H. Ghaemi
  • M. Szkodo
  • M. Antoszkiewicz
  • M. Szyfelbain
  • A. Czaban

  - Journal of Physics : Conference Series - Rok 2018

  The ion-beam assisted deposition (IBAD) is an advanced method capable of producing crystalline coatings at low temperatures. We determined the characteristics of hydroxyapatite Ca10(PO4)6(OH)2 target and coatings formed by IBAD using X-ray photoemission spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM) and energy dispersive X-ray (EDX). The composition of the coatings'...

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• Analytical comparison between capacitor assisted and diode assisted cascaded quasi-z-source inverters

  Publikacja

  • D. Vinnikov
  • I. Roasto
  • T. Jalakas
  • R. Strzelecki
  • M. Adamowicz

  - Przegląd Elektrotechniczny - Rok 2012

  Quasi-Z falownik z prostym obwodem impedancyjnym jest bardzo interesującym rozwiązaniem topologicznym ze względu na unikalną możliwość jednostopniowego przekształcanie DC/AC w połączeniu z funkcjami obniżania i podwyższania napięcia. W niektórych aplikacjach jego właściwości podwyższające są jednak niewystarczające. Wyższe napięcie wejściowe można uzyskać w wyniku zastosowania w quasi-Z-falownikach kaskadowych obwodów impedancyjnych....

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• SYNTHETIZED MEMBRANES FOR ULTRASOUND-ASSISTED SOLVENT EXTRACTION OF POROUS MEMBRANE PACKED SOLID SAMPLES.

  Publikacja

  • M. Jurczyk
  • J. Płotka-Wasylka
  • E. Gontarek-Castro

  - Rok 2021

  Membranes are becoming more and more popular in analytical chemistry, which is why they are used, among others, in extraction processes. Therefore, this work focuses on the process of synthesis PVDF membranes and its optimization. The obtained membranes were used as bags for the phthalate extraction in disposable diapers for babies. Extraction was accomplished by method ultrasound-assisted solvent extraction of porous PVDF membrane...

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• Video Semantic Analysis Framework based on Run-time Production Rules - Towards Cognitive Vision

  Publikacja

  • E. Szczerbicki
  • C. Toro
  • C. Sanin

  - JOURNAL OF UNIVERSAL COMPUTER SCIENCE - Rok 2015

  This paper proposes a service-oriented architecture for video analysis which separates object detection from event recognition. Our aim is to introduce new tools to be considered in the pathway towards Cognitive Vision as a support for classical Computer Vision techniques that have been broadly used by the scientific community. In the article, we particularly focus in solving some of the reported scalability issues found in current...

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• Comparison of Air-Assisted, Vortex-Assisted and Ultrasound-Assisted Dispersive Liquid–Liquid Microextraction for the Determination of BTEX Compounds in Water Samples Prior to GC-FID Analysis

  Publikacja

  • M. Rahmani
  • M. Kaykhaii
  • Z. Safari
  • O. Ansari
  • S. Nasab

  - CHROMATOGRAPHIA - Rok 2017

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• Mariusz Kaczmarek dr hab. inż.

  Osoby

  Politechnika Gdańska, Katedra Inżynierii Biomedycznej

  Received M.Sc., Eng. in Electronics in 1995 from Gdansk University of Technology, Ph.D. in Medical Electronics in 2003 and habilitation in Biocybernetics and Biomedical Engineering in 2017. He was an investigator in about 13 projects receiving a number of awards, including four best papers, practical innovations (7 medals and awards) and also the Andronicos G. Kantsios Award and Siemens Award. Main research activities: the issues...

• Optimization of vortex-assisted supramolecular solvent-based liquid liquid microextraction for the determination of mercury in real water and food samples

  Publikacja

  • M. F. Lanjwani
  • A. Elik
  • A. Ö. Altunay
  • M. Tuzen
  • H. Haq
  • G. Boczkaj

  - JOURNAL OF FOOD COMPOSITION AND ANALYSIS - Rok 2024

  A novel method was developed for sample preparation for spectrophotometric determination of Hg(II) in water and food samples. The method was based on vortex-assisted supramolecular solvent-assisted liquid-liquid microextraction (VA-SUPRASs-LLME). Analytical parameters such as pH, chelating agent, solvent type and volume, vortex time and salting out effect were optimized. Surface and normal probability plots were drawn for the variables...

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• Ultrasonic-assisted Electrodeposition of Cu-Sn-TiO2 Nanocomposite Coatings with Enhanced Antibacterial Activity

  Publikacja

  • D. Kharitonov
  • A. Kasach
  • D. Sergievich
  • A. Wrzesińska
  • I. Bobowska
  • K. Darowicki
  • A. Zieliński
  • J. Ryl
  • I. Kurilo

  - ULTRASONICS SONOCHEMISTRY - Rok 2021

  Copper-based coatings are known for their high antibacterial activity. In this study, nanocomposite Cu–Sn–TiO2 coatings were obtained by electrodeposition from an oxalic acid bath additionally containing 4 g/dm3 TiO2 with mechanical and ultrasonic agitation. Ultrasound treatment was performed at 26 kHz frequency and 32 W/dm3 power. The influence of agitation mode and the current load on the inclusion and distribution of the TiO2...

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• Efficiency comparison of selected endoscopic video analysis algorithms

  Publikacja

  • J. Cychnerski

  - International Journal of Innovative Research in Computer and Communication Engineering - Rok 2014

  In the paper, selected image analysis algorithms were examined and compared in the task of identifying informative frames, blurry frames, colorectal cancer and healthy tissue on endoscopic videos. In order to standardize the tests, the algorithms were modified by removing from them parts responsible for the classification, and replacing them with Support Vector Machines and Artificial Neural Networks. The tests were performed in...

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• Identification of regions of interest in video for a traffic monitoring system

  Publikacja

  • G. Szwoch
  • P. Dalka

  - Rok 2008

  A system for automatic event detection in the camera image is presented in this paper. A method of limiting a region of interest to relevant parts of the image using a set of processing procedures is proposed. Image processing includes object detection with shadow removal performed in the modified YCbCr color space instead of RGB. The proposed procedures help to reduce the complexity of image processing algorithm and result in...

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• Automatic system for audio-video material reconstruction and archiving

  Publikacja

  • A. Kupryjanow
  • A. Czyżewski

  - Rok 2008

  Referat przedstawia propozycję modelu systemu automatycznej archiwizacji i rekonstrukcji nagrań audio-wideo. Założeniem tego rozwiązania jest uczynienie procesu rekonstrukcji nagrań bardziej niezależnym od człowieka. Ma to na celu redukcję kosztów rekonstrukcji przetwarzanych nagrań. Z powodu dużej liczby archiwalnych nagrań audio-wideo istnieje potrzeba stworzenia systemu który umożliwi automatyczną indeksację ich treści. Pomoże...

• Organizational innovativeness and coopetition: a study of video game developers

  Publikacja

  • P. Klimas
  • W. Czakon

  - Review of Managerial Science - Rok 2018

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• Identification of regions of interest in video for a traffic monitoring system

  Publikacja

  • G. Szwoch
  • P. Dalka

  - Rok 2008

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• CDN for Live and On-Demand Video Services over IP

  Publikacja

  • M. Czyrnek
  • E. Kuśmierek
  • C. Mazurek
  • M. Stroiński
  • J. Wėglarz

  - Rok 2008

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• Microwave-assisted boration of potato starch

  Publikacja

  • H. Staroszczyk

  - Polimery - Rok 2009

  Ziarnistą skrobię ziemniaczaną boranowano za pomocą kwasu borowego i dziesięciowodnego tetraboranu sodu (boraksu) w reakcji wspomaganej mikrofalami. Określono wpływ stosunku substratów oraz czasu trwania i mocy naświetlania na stopień estryfikacji (DE) produktów. Maksymalna wartość DE w próbkach skrobi boranowanej kwasem wyniosła 0,27, a boranowanej boraksem 0,18. Ustalono, że chociaż zmodyfikowana skrobia, o strukturze estrów...

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• Microwave-assisted silication of potato starch

  Publikacja

  • H. Staroszczyk

  - CARBOHYDRATE POLYMERS - Rok 2009

  Silication of potato starch was performed by microwave irradiation and convectional heating of starch with sodium metasilicate. The study has shown that microwaves offered more selective silication thanconvectional heating. Depending on the dose of metasilicate products of either monoesterification or crosslinking esterification were formed. Increase in the amount of the silicating agent favoured crosslinking of starch. In the...

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• Assessment of cardiovascular risk in assisted living

  Publikacja

  • J. Wtorek
  • A. Bujnowski
  • J. Rumiński
  • A. Poliński
  • M. Kaczmarek
  • A. Z. Nowakowski

  - Metrology and Measurement Systems - Rok 2012

  Wady i choroby układu krążenia są jedną z podstawowych przyczyn problemów zdrowotnych oraz przyczyn śmierci. Wczesne ich wykrycie jest szczególnie cenne jako, że może zapobiec przez poważnymi incydentami (np. zawał, udar, itp.). W artykule przedstawiono nasobny system pomiarowy integrujący wiele pomiarów przydatnych do oceny problemów kardiologicznych.Disorders of the heart and blood vessels are the leading cause of health problems...

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• ICTACT Journal on Image and Video Processing

  Czasopisma

  ISSN: 0976-9099

• EURASIP Journal on Image and Video Processing

  Czasopisma

  ISSN: 1687-5176 , eISSN: 1687-5281

• TRANSPORT POSSIBILITY FOR MPEG-4/AVC- AND MPEG-2-ENCODED VIDEO DATA IN IPTV: A COMPARISON STUDY

  Publikacja

  • T. Uhl
  • S. Paulsen
  • K. Nowicki

  - Rok 2013

  IPTV (Television over IP) is a modern service with a great potential to expand. It uses the IP transport platform, that is already in worldwide operation. At the time of writing, two techniques are used to transport the video and audio data of IPTV: MPEG-2 TS and Native RTP. The two techniques quite definitely have an influence on both quality of service (QoS) and quality of experience (QoE). This paper sets out to demonstrate...

• Sierakowice 2020- video data

  Dane Badawcze

  open access

  • Ł. Jeliński
  • J. Wachnicka
  • W. Kustra
  • D. Bytner

  Sierakowice 2020- video data

• Electro-chemo-mechanical properties in nanostructured Ca-doped ceria (CDC) by field assisted sintering

  Publikacja

  • A. Kabir
  • H. Zhang
  • S. Colding-Jørgensen
  • S. Santucci
  • S. Molin
  • V. Esposito

  - SCRIPTA MATERIALIA - Rok 2020

  Recent investigations have shown that highly oxygen defective cerium oxides generate non-classical electrostriction that is superior to lead-based ferroelectrics. In this work, we report the effect of field-assisted spark plasma sintering (SPS) on electro-chemo-mechanical properties of calcium doped ceria (CDC). Nanometric powders of Ca.10 nm are rapidly consolidated to form polycrystalline nanostructures with a high degree of...

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• A Multi-Fidelity Surrogate-Model-Assisted Evolutionary Algorithm for Computationally Expensive Optimization Problems

  Publikacja

  • B. Liu
  • S. Kozieł
  • Q. Zhang

  - Journal of Computational Science - Rok 2016

  Integrating data-driven surrogate models and simulation models of different accuracies (or fideli-ties) in a single algorithm to address computationally expensive global optimization problems has recently attracted considerable attention. However, handling discrepancies between simulation models with multiple fidelities in global optimization is a major challenge. To address it, the two major contributions of this paper include:...

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• Surrogate-Assisted Design of Checkerboard Metasurface for Broadband Radar Cross-Section Reduction

  Publikacja

  • M. Abdullah
  • S. Kozieł

  - IEEE Access - Rok 2021

  Metasurfaces have been extensively exploited in stealth applications to reduce radar cross section (RCS). They rely on the manipulation of backward scattering of electromagnetic (EM) waves into various oblique angles. However, arbitrary control of the scattering properties poses a significant challenge as a design task. Yet it is a principal requirement for making RCS reduction possible. This article introduces a surrogate-based...

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• Case Reports in Dentistry

  Czasopisma

  ISSN: 2090-6447 , eISSN: 2090-6455

• Journal of Dentistry Indonesia

  Czasopisma

  ISSN: 1693-9697 , eISSN: 2355-4800

• International Journal of Dentistry

  Czasopisma

  ISSN: 1687-8728 , eISSN: 1687-8736