Search results for: IMAGE PROCESSING METHODS

• Assessment of image processing methods for the determination of propagation of squat-type defects in rails

  Publication

  • E. Mieloszyk
  • A. Milewska
  • S. Grulkowski

  - Year 2019

  We demonstrate the idea of squat-type defect measurement in the rail and the concept of tracking of the defect development using the techniques of image acquisition and image processing as well as the methods of metric spaces. We introduce the concepts of a set diameter δ(A) and the metric ρ1, which come from the properties of plane figures, to compare and to observe the development of the defects. We characterize the feasibility...

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• Application of image processing methods for the characterization of selected features and wear analysis in surface topography measurements

  Publication

  • P. Podulka

  - Procedia Manufacturing - Year 2021

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• Comparison of image pre-processing methods in liver segmentation task

  Publication

  • K. Kaczor
  • P. Nadachowski
  • M. Operlejn
  • A. Piastowski
  • M. Zielonka
  • J. Cychnerski
  • A. Kwaśniewska

  - Year 2022

  Automatic liver segmentation of Computed Tomography (CT) images is becoming increasingly important. Although there are many publications in this field there is little explanation why certain pre-processing methods were utilised. This paper presents a comparison of the commonly used approach of Hounsfield Units (HU) windowing, histogram equalisation, and a combination of these methods to try to ascertain what are the differences...

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• Indect input to image processing

  Publication

  • P. Dalka

  - Year 2009

• Coordination in serial-parallel image processing

  Publication

  • W. Wójcik
  • V. Dubovoi
  • M. Duda
  • R. Romaniuk
  • L. Yesmakhanova
  • A. Kozbakova
  • R. S. Romaniuk

  - Year 2015

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• Image Processing On Line

  Journals

  ISSN: 2105-1232

• Analogue CMOS ASICs in Image Processing Systems

  Publication

  • W. Jendernalik
  • G. Blakiewicz
  • A. Handkiewicz
  • M. Melosik

  - Metrology and Measurement Systems - Year 2013

  In this paper a survey of analog application specific integrated circuits (ASICs) for low-level image processing, called vision chips, is presented. Due to the specific requirements, the vision chips are designed using different architectures best suited to their functions. The main types of the vision chip architectures and their properties are presented and characterized on selected examples of prototype integrated circuits (ICs)...

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• Image Processing Techniques for Distributed Grid Applications

  Publication

  • P. Brudło

  - Year 2012

  Parallel approaches to 2D and 3D convolution processing of series of images have been presented. A distributed, practically oriented, 2D spatial convolution scheme has been elaborated and extended into the temporal domain. Complexity of the scheme has been determined and analysed with respect to coefficients in convolution kernels. Possibilities of parallelisation of the convolution operations have been analysed and the results...

• The method of multispectral image processing of phytoplankton processing for environmental control of water pollution

  Publication

  • V. Petruk
  • S. Kvaternyuk
  • V. Yasynska
  • A. Kozachuk
  • A. Kotyra
  • R. Romaniuk
  • N. Askarova
  • R. S. Romaniuk

  - Year 2015

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• an intelligent image processing sensor - the algorithm and the hardware implementation

  Publication

  • M. Wójcikowski
  • R. Żaglewski
  • B. Pankiewicz

  - Year 2008

  W artykule przedstawiono algorytm przeznaczony do rozpoznawania obiektów ruchomych w obrazie do celu analizy ruchu pojazdów. Algorytm został zrealizowany w układzie FPGA.Ang.: This paper describes the idea and theimplementation of the robust algorithm dedicated toextraction of moving vehicles from real-time cameraimages for the evaluation of traffic parameters, suchas the number of vehicles, their direction of movementand their...

• Journal of Signal and Image Processing

  Journals

  ISSN: 0976-8882

• SIGNAL PROCESSING-IMAGE COMMUNICATION

  Journals

  ISSN: 0923-5965 , eISSN: 1879-2677

• Multi-core processing system for real-time image processing in embedded computer vision applications

  Publication

  • R. Żaglewski
  • M. Wójcikowski

  - Year 2008

  W artykule opisano architekturę wielordzeniowego programowalnego systemu do przetwarzania obrazów w czasie rzeczywistym. Dane obrazu są przetwarzane równocześnie przez wszystkie procesory. System umożliwia niskopoziomowe przetwarzanie obrazów,np. odejmowanie tła, wykrywanie obiektów ruchomych, transformacje geometryczne, indeksowanie wykrytych obiektów, ocena ich kształtu oraz podstawowa analiza trajektorii ruchu. Ang:This paper...

• Overhead wires detection by FPGA real-time image processing

  Publication

  • P. Kowalski
  • R. Smyk

  - ITM Web of Conferences - Year 2019

  The paper presents design and hardware implementation of real-time image filtering for overhead wires detection divided on image processing and results presentation blocks. The image processing block was separated from the whole implementation, and its delay and hardware complexity was analysed. Also the maximum frequency of image processing of the proposed implementation was estimated.

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• Liquid crystal thermography and true-colour digital image processing

  Publication

  • J. Stąsiek

  - Year 2003

  Autorzy opisali własne wieloletnie doświadczenia z badań wymiany ciepła, w których wykorzystali termochromatyczne ciekłe kryształy. Obejmowały one badania przepływów w kanałach o różnorakiej konfiguracji, badania w przestrzeniach zamkniętych oraz podczas zmiany stanu skupienia badanego płynu.

• Neural network approach to 2D Kalman filtering in image processing

  Publication

  • A. Dzielinski
  • S. Skoneczny

  - Year 1991

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• Liquid crystal thermography and true-colour digital image processing

  Publication

  • J. Stąsiek
  • A. Stąsiek
  • M. Jewartowski
  • M. Collins

  - OPTICS AND LASER TECHNOLOGY - Year 2006

  W ostatnich latach termografia ciekłokrystaliczna i komputerowa analiza kolorowych obrazów jest z powodzeniem stosowana w technikach nieinwazyjnych, badaniach i aplikacjach przemysłowych i medycznych. W artykule przedstawiono historię tej techniki, opisano główne metody i narzędzia oraz pokazano szereg przykładów zastosowania.

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• Image content description methods for a retrieval system.

  Publication

  • J. Rumiński
  • A. Z. Nowakowski

  - Year 2004

  Artykuł przedstawia metody opisu treści obrazu dla potrzeb systemu wyszukiwania. Omówiono deskryptory opisu treści obrazu oraz ich realizację w Systemie Wyszukiwania Obrazów.

• CMOS implementation of an analogue median filter for image processing in real time

  Publication

  • W. Jendernalik
  • J. Jakusz
  • G. Blakiewicz
  • S. Szczepański

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Year 2013

  An analogue median filter, realised in a 0.35 μm CMOS technology, is presented in this paper. The key advantages of the filter are: high speed of image processing (50 frames per second), low-power operation (below 1.25 mW under 3.3 V supply) and relatively high accuracy of signal processing. The presented filter is a part of an integrated circuit for image processing (a vision chip), containing: a photo-sensor matrix, a set of...

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• PERFORMANCE OF ENDOSCOPIC IMAGE ANALYSIS ALGORITHMS IN LARGE BOWEL VIDEOS PROCESSING

  Publication

  • J. Cychnerski
  • A. Brzeski
  • A. Blokus

  - Year 2013

  Computer-assisted endoscopy is a rapidly developing eld of study. Many image anal- ysis algorithms exist, achieving very high rates of eciency at processing single endoscopic images. However, most of them were never tested in processing real-life endoscopic videos. In the article such tests of 16 endoscopy image analysis algorithms are presented and dis- cussed. Tests were performed on two real-life endoscopic videos of a human...

• Towards Efficient Parallel Image Processing on Cluster Grids Using GIMP.

  Publication

  • P. Czarnul
  • A. Ciereszko
  • M. Frączak

  - Year 2004

  Ze względu na fakt, iż niewielu użytkowników posiada wiedzę niezbędną do wykorzystania niskopoziomowych bibliotek programowania równoległego w celu przyspieszenia działania programów operujących na obrazach, proponujemy plugin do znanej aplikacji GIMP, który umożliwia potokowe wykonanie szeregu filtrów na obrazach załadowanych przez plugin. Prezentujemy szczegóły implementacyjne, scenariusze testowe i wyniki na klastrach, potencjalnie...

• Quantification of Asphalt Mixture Interlocking Utilizing 2D and 3D Image Processing

  Publication

  • P. Polaczyk
  • Y. Ma
  • Z. Jarrar
  • X. Jiang
  • R. Xiao
  • B. Huang

  - JOURNAL OF MATERIALS IN CIVIL ENGINEERING - Year 2023

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• Thermal Image Processing for Respiratory Estimation from Cubical Data with Expandable Depth

  Publication

  • M. Szankin
  • A. Kwaśniewska
  • J. Rumiński

  - Journal of Imaging - Year 2023

  As healthcare costs continue to rise, finding affordable and non-invasive ways to monitor vital signs is increasingly important. One of the key metrics for assessing overall health and identifying potential issues early on is respiratory rate (RR). Most of the existing methods require multiple steps that consist of image and signal processing. This might be difficult to deploy on edge devices that often do not have specialized...

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• Endoscopic image processing and analysis of pistons' service failures of marine diesel engines

  Publication

  • Z. Korczewski

  - Journal of Polish CIMEEAC - Year 2011

  The paper deals with diagnostic issues concerning endoscopic examinations of working spaces within marine diesel engines. In the beginning, endoscopy apparatus being on laboratory equipment of the Department of Ship Power Plants of Gdansk University of Technology has been characterized. The endoscopy considerations have been focused on theoretical bases of a digital image processing and especially - on the "Shadow" measurement...

• IEEE TRANSACTIONS ON IMAGE PROCESSING

  Journals

  ISSN: 1057-7149 , eISSN: 1941-0042

• ICTACT Journal on Image and Video Processing

  Journals

  ISSN: 0976-9099

• EURASIP Journal on Image and Video Processing

  Journals

  ISSN: 1687-5176 , eISSN: 1687-5281

• Sampling Theory in Signal and Image Processing

  Journals

  ISSN: 1530-6429

• Journal of Flow Visualization and Image Processing

  Journals

  ISSN: 1065-3090

• Data processing methods for dynamic medical thermography.

  Publication

  • M. Kaczmarek
  • J. Rumiński
  • A. Z. Nowakowski

  - IFMBE Proceedings - Year 2002

  Artykuł przedstawia zastosowanie nowej metody syntezy obrazów w termografii dla potrzeb opisu ilościowego właściwości termicznych tkanek. Opis taki umożliwia różnicowanie przypadków medycznych. Metodę zastosowania dla licznych pomiarów fantomowych i in vitro w eksperymentach na zwierzętach (świnia domowa). Przedstawiono i omówiono rezultaty prac.

• An Analog Sub-Miliwatt CMOS Image Sensor With Pixel-Level Convolution Processing

  Publication

  • W. Jendernalik
  • G. Blakiewicz
  • J. Jakusz
  • S. Szczepański
  • R. Piotrowski

  - IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS - Year 2013

  A new approach to an analog ultra-low power medium-resolution vision chip design is presented. The prototype chip performs low-level image processing algorithms in real time. Only a photo-diode, MOS switches and two capacitors are used to create an analog processing element (APE) that is able to realize any convolution algorithm based on a full 3x3 kernel. The proof-of-concept circuit is implemented in 0.35 µm CMOS technology,...

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• A Solution to Image Processing with Parallel MPI I/O and Distributed NVRAM Cache

  Publication

  • A. Malinowski
  • P. Czarnul

  - Scalable Computing: Practice and Experience - Year 2018

  The paper presents a new approach to parallel image processing using byte addressable, non-volatile memory (NVRAM). We show that our custom built MPI I/O implementation of selected functions that use a distributed cache that incorporates NVRAMs located in cluster nodes can be used for efficient processing of large images. We demonstrate performance benefits of such a solution compared to a traditional implementation without NVRAM...

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• Seafloor characterisation using multibeam sonar echo signal processing and image analysis

  Publication

  • Z. Łubniewski
  • A. Stepnowski
  • A. Chybicki

  - HYDROACOUSTICS - Year 2010

  The authors propose the approach to multibeam seafloor characterisation which relies on the combined, concurrent use of two different techniques of multibeam sonar data processing. The first one is based on constructing the grey-level sonar images of seabed using the echoes received in the consecutive beams. Then, the parameters describing the local region of sonar image, namely, the local standard deviation of a grey level, and...

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• Combined method of multibeam sonar signal processing and image analysis for seafloor classification

  Publication

  • A. Stepnowski
  • Z. Łubniewski

  - Year 2011

  The combined approach to seafloor characterisation was investigated. It relies on calculation of several descriptors (parameters) related to seabed type using three types of multibeam sonar data obtained during seafloor sensing: 1) the grey-level sonar images (echograms) of seabed, 2) the 3D model of the seabed surface which consists of bathymetric data, 3) the set of time domain bottom echo envelopes received in the consecutive...

• The Use of Liquid Crystal Thermography an Image Processing in Heat and Fluid-Flow Research

  Publication

  • J. Stąsiek
  • M. Jewartowski

  - Year 2015

  Liquid crystal thermography (LCT) have been used in many technical, industrial and biomedical applications [1]. During over 20 years it has been successfully applied in Department of Energy and Industrial Apparatus at Gdansk University of Technology for visualization of steady-state and transient temperature fields. In order to demonstrate feasibility of LCT techniques in practical heat transfer contexts, the authors have performed...

• International Journal of Signal Processing, Image Processing and Pattern Recognition

  Journals

  ISSN: 2005-4254

• Deterioration of masonry structure investigated by a thermal camera with a qualitative assessment of thermal image processing

  Publication

  • P. Ziółkowski
  • M. Niedostatkiewicz
  • J. Szulwic

  - Year 2018

  Thermal imaging is contemporary remote sensing measurement technique, which provides an image of the temperature distribution in the measured object. The method is widely used, due to its mobility as well as the non-destructive character of the measurement. Infrared thermography is especially relevant in the inspection of insulation, what is more, it is a suitable device for detecting thermal bridges and structural changes, which...

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• A study on signal processing methods applied to hearing aids

  Publication

  • B. Kostek
  • K. Kąkol

  - Year 2016

  This paper presents a short survey on current technology available in hearing aids with a focus on digital signal processing techniques used. First, factors influencing the hearing aid effectiveness are introduced. Then, examples of the present DSP methods and strategies are provided. Also, a description of current limitations of hearing aids and future trends of development are shown. Finally, the notion of computational auditory...

• Strouhal Number Measurement for Novel Biomimetic Folding Fins Using an Image Processing Method

  Publication

  • P. Piskur

  - Journal of Marine Science and Engineering - Year 2022

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• Liquid crystal thermography and true-colour digital image processing in engineering and biomedical research

  Publication

  • J. Stąsiek
  • A. Stąsiek
  • D. Mikielewicz

  - Year 2008

  Wykład dotyczy zastosowań termografii ciekłokrystalicznej i analizy kolorowych obrazów w nieniszczących badaniach inżynierksich oraz w medycynie.

• MSIS Image Postioning in Port Areas with the Aid of Comparative Navigation Methods

  Publication

  • N. Wawrzyniak
  • A. Stateczny

  - Polish Maritime Research - Year 2017

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• Characteristics of an image sensor with early-vision processing fabricated in standard 0.35 µm CMOS technology

  Publication

  • W. Jendernalik
  • J. Jakusz
  • G. Blakiewicz
  • S. Szczepański
  • R. P. Piotrowski

  - Metrology and Measurement Systems - Year 2012

  The article presents measurement results of prototype integrated circuits for acquisition and processing of images in real time. In order to verify a new concept of circuit solutions of analogue image processors, experimental integrated circuits were fabricated. The integrated circuits, designed in a standard 0.35 µm CMOS technology, contain the image sensor and analogue processors that perform low-level convolution-based image...

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• seafloor characterisation combined approach using multibeam sonar echo signal processing and image analysis

  Publication

  • Z. Łubniewski
  • A. Stepnowski
  • A. Chybicki

  - Year 2010

  The authors propose the approach to seafloor characterisation which relies on the combined, concurrent use of two different techniques: (i) multibeam sonar image analysis and (ii) multibeam seabed echoes processing. The first technique is based on constructing the grey-level sonar images of the seabed extracted from the echoes received in the consecutive soundings. Then, the set of parameters describing the local region of sonar...

• Methods of Incomplete and Uncertain Knowledge Acquisition in the Knowledge Processing Environemnt

  Publication

  • C. Orłowski
  • T. Sitek
  • R. Rybacki

  - LECTURE NOTES IN COMPUTER SCIENCE - Year 2010

  The authors in this paper present a concept of the environment to acquire and process knowledge about information technology. This solution is part of a project of which the objective is to build a system for the evaluation of IT tools and methodologies. Knowledge within this domain is always either uncertain or incomplete. Therefore, the authors focused on designing a dedicated algorithm for its acquisition and processing. One...

• A New Approach of Solidification Analysis in Modular Latent Thermal Energy Storage Unit Based on Image Processing

  Publication

  • R. Andrzejczyk
  • M. Saqib
  • M. Rogowski

  - APPLIED THERMAL ENGINEERING - Year 2024

  The solidification process of RT18HC in a cylindrical shell and tube storage unit has been studied using a new methodology based on image processing. The main idea of the algorithm is to label the region of solidification and use statistical functions to calculate the dimensions of the solidification front over time. Said analysis includes two methods. The first method is to measure the solid fraction changes during solidification....

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• International Journal of Image, Graphics and Signal Processing

  Journals

  ISSN: 2074-9074

• IEE PROCEEDINGS-VISION IMAGE AND SIGNAL PROCESSING

  Journals

  ISSN: 1350-245X

• Methods of Springs Failures Diagnostics in Ore Processing Vibrating Screens

  Publication

  • P. Krot
  • R. Zimroz

  - IOP Conference Series: Earth and Environmental Science - Year 2019

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• Methods and means of processing discrete information in networks with a high level of noise

  Publication

  • B. Knysh
  • V. Garmash
  • R. Romaniuk
  • R. Kvyetnyy
  • Y. Kulyk
  • A. Sagymbekova
  • R. S. Romaniuk

  - Year 2018

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• ECT image analysis methods for shear zone measurements during silo discharging process

  Publication

  • K. Grudzień
  • Z. Chaniecki
  • A. Romanowski
  • M. Niedostatkiewicz
  • D. Sankowski

  - CHINESE JOURNAL OF CHEMICAL ENGINEERING - Year 2012

  W pracy przedstawiono wyniki pomiarów zmian koncentracji piasku bezkohezyjnego zachodzących w cylindrycznym modelu silosu opróżnianym grawitacyjnie, w którym występowały silne efekty dynamiczne. Pomiary wykonano z zastosowaniem tomografii pojemnościowej. Badania przeprowadzono dla zróżnicowanego zagęszczenia początkowego piasku oraz różnego stopnia szorstkości ścian. Szczegółowej analizie poddano zmianę koncentracji materiału sypkiego...