Wyniki wyszukiwania dla: ENDOSCOPIC VIDE O PROCESSING

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

  Publikacja

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

  - Rok 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...

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

  Publikacja

  • Z. Korczewski

  - Journal of Polish CIMEEAC - Rok 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...

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• HEALTH MONITORING OF A COMPRESSION IGNITION ENGINE FED WITH DIFFERENT LOW-SULPHUR MARINE FUELS BY ENDOSCOPIC IMAGE PROCESSING AND ANALYSIS

  Publikacja

  • Z. Korczewski

  - Polish Maritime Research - Rok 2023

  This article characterises the methodology for the endoscopic testing of a laboratory diesel engine used for testing marine fuels. The ‘Shadow’ measurement method used in the XLG3 type EVEREST digital endoscope, for quantitative and qualitative identification of detected surface defects, was approximated. Representative endoscopic images of the elements limiting the working space of the research engine are demonstrated, having...

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• Endoscopic Videos Deinterlacing and On-Screen Text and Light Flashes Removal and Its Influence on Image Analysis Algorithms' Efficiency

  Publikacja

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

  - International Journal of Image Processing and Visual Communication - Rok 2013

  In this article, deinterlacing and removing on- screen text and light flashes methods on endoscopic video images are discussed. The research is intended to improve disease recognition algorithms' performance. In the article, four configurations of deinterlacing methods and another four configurations of text and flashes removal methods are described and examined. The efficiency of endoscopic video analysis algorithms is measured...

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• Visual Features for Endoscopic Bleeding Detection

  Publikacja

  • A. Brzeski

  - Current Journal of Applied Science and Technology (British Journal of Applied Science & Technology) - Rok 2014

  Aims: To define a set of high-level visual features of endoscopic bleeding and evaluate their capabilities for potential use in automatic bleeding detection. Study Design: Experimental study. Place and Duration of Study: Department of Computer Architecture, Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology, between March 2014 and May 2014. Methodology: The features have...

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• Endoscopic Video Classification with the Consideration of Temporal Patterns

  Publikacja

  • A. Blokus
  • A. Brzeski
  • J. Cychnerski
  • M. Jędrzejewski

  - Rok 2012

  The article describes a novel approach to automatic recognition and classification of diseases in endoscopic videos. Current directions of research in this field are discussed. Most presented methods focus on processing single frames and do not take into consideration the temporal relationship between continuous classifications. Existing approaches that consider the temporal structure of an incoming frame sequence are focused on...

• An Overview of the Development of a Real-Time System for Endoscopic Video Classification

  Publikacja

  • A. Blokus
  • A. Brzeski
  • J. Cychnerski
  • M. Jędrzejewski

  - Rok 2012

  The article presents the results of improving endoscopic image classification algorithms in an effort towards applying them in a real-time diagnosis supporting system. Methods for the detection and removal of personal data are presented and discussed. The currently developed recognition algorithms have been improved in terms of accuracy and performance to make them suitable for a real-life implementation. Their test results are...

• Visual Features for Improving Endoscopic Bleeding Detection Using Convolutional Neural Networks

  Publikacja

  • A. Brzeski
  • T. Dziubich
  • H. Krawczyk

  - SENSORS - Rok 2023

  The presented paper investigates the problem of endoscopic bleeding detection in endoscopic videos in the form of a binary image classification task. A set of definitions of high-level visual features of endoscopic bleeding is introduced, which incorporates domain knowledge from the field. The high-level features are coupled with respective feature descriptors, enabling automatic capture of the features using image processing methods....

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• An Overview of Image Analysis Techniques in Endoscopic Bleeding Detection

  Publikacja

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

  - International Journal of Innovative Research in Computer and Communication Engineering - Rok 2013

  Authors review the existing bleeding detection methods focusing their attention on the image processing techniques utilised in the algorithms. In the article, 18 methods were analysed and their functional components were identified. The authors proposed six different groups, to which algorithms’ components were assigned: colour techniques, reflecting features of pixels as individual values, texture techniques, considering spatial...

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• Real-Time Bleeding Detection in Gastrointestinal Tract Endoscopic Examinations Video

  Publikacja

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

  - International Journal of Distributed and Parallel Systems - Rok 2013

  The article presents a novel approach to medical video data analysis and recognition of bleedings. Emphasis has been put on adapting pre-existing algorithms dedicated to the detection of bleedings for real-time usage in a medical doctor’s office during an endoscopic examination. A real-time system for analyzing endoscopic videos has been designed according to the most significant requirements of medical doctors. The main goal of...

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• Color-based Detection of Bleeding in Endoscopic Images

  Publikacja

  • A. Brzeski

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

  In this paper a color descriptor designed for bleeding detection in endoscopic images is proposed. The development of the algorithm was carried out on a representative training set of 36 images of bleeding and 25 clear images. Another 38 bleeding and 26 normal images were used in the final stage as a test set. All of the considered images were extracted from separate endoscopic examinations. The experiments include color distribution...

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• "Shadow" method application within endoscopic examinations of marine engines

  Publikacja

  • Z. Korczewski
  • J. Rudnicki

  - Rok 2012

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

• "Shadow" method application within endoscopic examinations of marine engines

  Publikacja

  • Z. Korczewski
  • J. Rudnicki

  - Rok 2012

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

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• “Shadow” vs. “Phase 3D” method within endoscopic examinations of marine engines

  Publikacja

  • Z. Korczewski
  • J. Rudnicki

  - Combustion Engines - Rok 2013

  A visual investigation of surfaces creating internal, working spaces of marine combustion engines by means of specialized view-finders so called endoscopes is at present almost a basic method of technical diag-nostics. The surface structure of constructional material is visible during investigations like through the magnifying glass (usually with a precisely determined magnification), which makes possible a detection, recognition...

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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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• Contour Analysis of Bleeding Regions in Endoscopic Images

  Publikacja

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

  - Rok 2012

  This paper investigates the problem of detecting bleeding regions in images acquired from endoscopic examinations of gastrointestinal tract. The purpose is to identify the characteristic features of bleeding areas' contours in order to develop an accurate method for discriminating between true bleeding regions and missed detections, which could lead to a significant reduction of the false alarm rate of existing blood-detection...

• MEAN SHIFT BASED SEGMENTATION FOR BLEEDING REGIONS IN ENDOSCOPIC VIDEOS

  Publikacja

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

  - Rok 2013

  With a set of 38 manually marked bleeding regions form endoscopic videos, the authors attempted to find an optimal image segmentation method for reproducing doctor’s markup. Mean shift segmentation combined with HSV histogram segmentation were used as a segmentation method, which was then optimized by tuning the parameters of the method using global optimization algorithm. A target function for measuring the quality of segmentation was...

• METHOD OF TRAINING THE ENDOSCOPIC VIDEO ANALYSIS ALGORITHMS TO MAXIMIZE BOTH ACCURACY AND STABILITY

  Publikacja

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

  - Rok 2013

  In the article a new training and testing method of endoscopic video analysis algorithms is presented. Classical methods take into account only eciency of recognizing objects on single video frames. Proposed method additionally considers stability of classiers output for real video input. The method is simple and can be trained on data sets created for other solutions. Therefore, it is easily applicable to existing endoscopic video...

• AN ALGORITHM FOR PORTAL HYPERTENSIVE GASTROPATHY RECOGNITION ON THE ENDOSCOPIC RECORDINGS

  Publikacja

  • J. Cychnerski
  • P. Dorożyński
  • T. Dziubich

  - Rok 2014

  Symptoms recognition of portal hypertensive gastropathy (PHG) can be done by analysing endoscopic recordings, but manual analysis done by physician may take a long time. This increases probability of missing some symptoms and automated methods may be applied to prevent that. In this paper a novel hybrid algorithm for recognition of early stage of portal hypertensive gastropathy is proposed. First image preprocessing is described....

• Endoscopic Ultrasound

  Czasopisma

  ISSN: 2303-9027 , eISSN: 2226-7190

• Endoscopic Surgery

  Czasopisma

  ISSN: 1025-7209 , eISSN: 2309-5636

• Image Processing in Robotics (2021/2022)

  Kursy Online

  • P. Chudziak

  For ISD M.Sc. (II degr.) 2 sem. Participants are to learn image processing algorithms related to transformation, filtration, feature detection (image descriptors), image processing algorithms in robotic industrial systems.

• Marek Blok dr hab. inż.

  Osoby

  Marek Blok w 1994 roku ukończył studia na kierunku Telekomunikacja wydziału Elektroniki Politechniki Gdańskiej i uzyskał tytuł mgra inżyniera. Doktorat w zakresie telekomunikacji uzyskał w 2003 roku na Wydziale Elektroniki, Telekomunikacji i Informatyki Politechniki Gdańskiej. W 2017 roku uzyskał stopień naukowy dra habilitowanego w dyscyplinie telekomunikacja. Jego zainteresowania badawcze ukierunkowane są na telekomunikacyjne...

• Physicochemical Problems of Mineral Processing

  Czasopisma

  ISSN: 1643-1049 , eISSN: 2084-4735

• The Influence of Selecting Regions from Endoscopic Video Frames on The Efficiency of Large Bowel Disease Recognition Algorithms

  Publikacja

  • A. Blokus
  • A. Brzeski
  • J. Cychnerski
  • M. Jędrzejewski

  - Rok 2012

  The article presents our research in the field of the automatic diagnosis of large intestine diseases on endoscopic video. It focuses on the methods of selecting regions of interest from endoscopic video frames for further analysis by specialized disease recognition algorithms. Four methods of selecting regions of interest have been discussed: a. trivial, b. with the deletion of characteristic, endoscope specific additions to the...

• MECHANICAL SYSTEMS AND SIGNAL PROCESSING

  Czasopisma

  ISSN: 0888-3270

• The parallel environment for endoscopic image analysis

  Publikacja

  • H. Krawczyk
  • A. Neyman
  • M. Nowikowski
  • J. Saif

  - Rok 2002

  The jPVM-oriented environment to support high performance computing required for the Endoscopy Recommender System (ERS) is defined. SPMD model of image matching is considered and its two implementations are proposed: Lexicographical Searching Algorithm (LSA) and Gradient Serching Algorithm (GSA). Three classes of experiments are considered and the relative degree of similarity and execution time of each algorithm are analysed....

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• SIGNAL PROCESSING

  Czasopisma

  ISSN: 0165-1684 , eISSN: 1872-7557

• Comparison of antioxidative properties of raw vegetables and thermally processed ones using the conventional and sous-vide methods

  Publikacja

  • G. Kosewski
  • I. Górna
  • I. Bolesławska
  • M. Kowalówka
  • B. Więckowska
  • A. Główka
  • A. Morawska
  • K. Jakubowski
  • M. Dobrzyńska
  • P. Miszczuk
  • J. Przysławski

  - Food Chemistry - Rok 2018

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• CHEMICAL ENGINEERING AND PROCESSING

  Czasopisma

  ISSN: 0255-2701 , eISSN: 1873-3204

• Digital Signal Processing

  Kursy Online

  • T. Stefański

• Endoscopic submucosal dissection of gastric ectopic pancreas

  Publikacja

  • W. Makarewicz
  • M. Bobowicz
  • M. Dubowik
  • A. Kosinski
  • T. Jastrzebski
  • J. Jaskiewicz

  - Wideochirurgia i Inne Techniki Maloinwazyjne - Rok 2013

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• Pervaporation in food processing

  Publikacja

  • R. Castro-Muñoz
  • G. Boczkaj

  - Rok 2021

  This chapter is about pervaporation in food processing

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• Image Processing in Robotics

  Kursy Online

  • T. Białaszewski

• Image Processing in Robotics

  Kursy Online

  • S. Dziedziewicz

• Analysing the potential for application of the phase shift method in endoscopic examination of marine engines

  Publikacja

  • Z. Korczewski

  - Polish Maritime Research - Rok 2013

  The article presents theoretical principles of image processing in digital endoscopy which makes use of a miniaturised spectral scanner “PhaseProbe” designed by General Inspection Technologies LP, the producer of the measuring videoendoscope Everest XLG3. The technology of optoelectronic 3D mapping of the examined surface, which consists in measuring the phase shift between the emitted and reflected light waves, is briefly described....

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• Rozpoznawanie uszkodzeń w części przepływowej okrętowego turbinowego silnika spalinowego na podstawie wyników badania endoskopowego = Failures' recognising within the passages of a marine gas turbine engine on the basis of results of endoscopic investigation

  Publikacja

  • Z. Korczewski

  - Eksploatacja i Niezawodność - Maintenance and Reliability - Rok 2010

  The paper deals with diagnostic issues concerning endoscopic examinations of marine gas turbine engines. There will be presented selected information about failures within the passages and accessible endoscopic methods and means enabling their detection. The author focuses on the endoscopic techniques and widely presents the possibilities of this quickly developed diagnostic method. There will be also presented representative results...

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• IEEE TRANSACTIONS ON SIGNAL PROCESSING

  Czasopisma

  ISSN: 1053-587X , eISSN: 1941-0476

• ISSUES OF CLASSIFICATION FUNCTION CONTINUITY IN ENDOSCOPIC VIDEO CLASSIFICATION

  Publikacja

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

  - Rok 2013

  In the article a new way of analyzing the properties of feature vector functions (FVF) and classiers of images in a video stream is proposed. The general idea is based on focusing of the perceived continuity of the FVF and classier functions. Issues related to creating an exact mathematical model are discussed and a simplied solution is proposed. An exemplary algorithm is evaluated on three exemplary video sequences. The acquired...

• VIDE-SCIENCE TECHNIQUE ET APPLICATIONS

  Czasopisma

  ISSN: 1266-0167

• Spatial data processing technologies

  Kursy Online

  • M. Kulawiak
  • Z. Łubniewski
  • E. Lubecka

• Innovation and new technologies in mineral processing

  Wydarzenia

  23-06-2021 11:00 - 23-06-2021 12:15

  Zapraszamy Państwa na webinarium nt. innowacji i nowych technologii w przetwórstwie surowców mineralnych z dyrektorem globalnym firmy FLSmidth Flotation. Obowiązuje rejestracja.

• Asian Journal of Endoscopic Surgery

  Czasopisma

  ISSN: 1758-5902 , eISSN: 1758-5910

• Annals of Laparoscopic and Endoscopic Surgery

  Czasopisma

  ISSN: 2518-6973

• Endoscopic Forum for Digestive Disease

  Czasopisma

  ISSN: 0912-0505

• Advanced Processing of Telecommunications Signals

  Kursy Online

  • A. Bekasiewicz

• Radar and Sonar Imaging and Processing

  Publikacja

  • A. Stateczny
  • W. Kazimierski
  • K. Kulpa

  - Remote Sensing - Rok 2020

  The 21 papers (from 61 submitted) published in the Special Issue “Radar and Sonar Imaging Processing” highlighted a variety of topics related to remote sensing with radar and sonar sensors. The sequence of articles included in the SI dealt with a broad profile of aspects of the use of radar and sonar images in line with the latest scientific trends. The latest developments in science, including artificial intelligence, were used.

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• Processing of Satellite Data in the Cloud

  Publikacja

  • J. Proficz
  • K. Drypczewski

  - TASK Quarterly - Rok 2017

  The dynamic development of digital technologies, especially those dedicated to devices generating large data streams, such as all kinds of measurement equipment (temperature and humidity sensors, cameras, radio-telescopes and satellites – Internet of Things) enables more in-depth analysis of the surrounding reality, including better understanding of various natural phenomenon, starting from atomic level reactions, through macroscopic...

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• Implementation of DIFAR Processing in ASW Dipping Sonar

  Publikacja

  • M. Rudnicki

  - Rok 2017

  This paper presents the implementation of the signal processing algorithm used by buoy DIFAR (Directional Frequency Analysis and Recording), that is fully operational on Polish Navy anti-submarine warfare (ASW) helicopters and ships, applied to dipping sonars for detection and tracking of submarines. The development of the DSP algorithms was a part of the modernization of sonars conducted at the Gdansk University of Technology....

• The effect of processing on the safety and nutritional value

  Publikacja

  • Z. E. Sikorski
  • H. Staroszczyk

  - Rok 2017

  Agricultural crops as well as animal food raw materials are usually somehow processed before being used by humans. Processing should make them more useful, increase their safety and nutritional value, extend the shelf life, and modify the sensory properties. However, changes and interactions of various compounds in the conditions of processing may generate products toxic or otherwise unsafe for the human organism. The food industry...