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Search results for: balance training
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IMAGE CORRELATION AS A TOLL FOR TRACKING FACIAL CHANGES CAUSING BY EXTERNAL STIMULI
PublicationExpressions of the human face bring a lot of information, which are a valuable source in the areas of computer vision, remote sensing and affective computing. For years, by analyzing the movement of the skin and facial muscles scientists are trying to create the perfect tool, based on image analysis, allowing the recognition of emotional states of human beings. To create a reliable algorithm, it is necessary to explore and examine...
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Deep Features Class Activation Map for Thermal Face Detection and Tracking
PublicationRecently, capabilities of many computer vision tasks have significantly improved due to advances in Convolutional Neural Networks. In our research, we demonstrate that it can be also used for face detection from low resolution thermal images, acquired with a portable camera. The physical size of the camera used in our research allows for embedding it in a wearable device or indoor remote monitoring solution for elderly and disabled...
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Real-time facial feature tracking in poor quality thermal imagery
PublicationRecently, facial feature tracking systems have become more and more popular because of many possible use cases. Especially in medical applications location of the face and facial features are very useful. Many researches have presented methods to detect and track facial features in visible light. However, facial feature analysis in thermography may also be very advantageous. Some examples of using infrared imagery in medicine include...
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Performance evaluation of the parallel object tracking algorithm employing the particle filter
PublicationAn algorithm based on particle filters is employed to track moving objects in video streams from fixed and non-fixed cameras. Particle weighting is based on color histograms computed in the iHLS color space. Particle computations are parallelized with CUDA framework. The algorithm was tested on various GPU devices: a desktop GPU card, a mobile chipset and two embedded GPU platforms. The processing speed depending on the number...
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Deep learning based thermal image segmentation for laboratory animals tracking
PublicationAutomated systems for behaviour classification of laboratory animals are an attractive alternative to manual scoring. However, the proper animals separation and tracking, especially when they are in close contact, is the bottleneck of the behaviour analysis systems. In this paper, we propose a method for the segmentation of thermal images of laboratory rats that are in close contact during social behaviour tests. For this, we are...
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An Optimal Power Point Tracking Algorithm in a Solar PV Generation System
PublicationThe non-linearity in I-V characteristics of a PV panel requires to be operated at knee point to extract maximum power. In order to operate the panel at optimal point, maximum power point tracking (MPPT) algorithm is employed in the control structure. The main objective of MPP tracking is to keep the operation at knee point of I-V characteristics under varying condition of temperature and solar insolation. Under non uniform solar...
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Eye-tracking everywhere - software supporting disabled people in interaction with computers
PublicationIn this paper we present comprehensive system for communication with computer by gaze. One of the main assumptions behind this work was to provide solution that can be used with standard RGB webcam. The proposed comprehensive system included the eye tracking module and user interface for convenient gaze interaction with computer. As a result a fully functional application was developed. The average accuracy of the eye tracking...
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Surface and Trapping Energies as Predictors for the Photocatalytic Degradation of Aromatic Organic Pollutants
PublicationIn this study, anatase samples enclosed by the majority of three different crystal facets {0 0 1}, {1 0 0}, and {1 0 1} were successfully synthesized. These materials were further studied toward photocatalytic degradation of phenol and toluene as model organic pollutants in water and gas phases. The obtained results were analyzed concerning their surface structure, reaction type, and surface development. Moreover, the regression...
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Using Eye-tracking to get information on the skills acquisition by the radiology residents
PublicationThis paper describes the possibility of monitoring the progress of knowledge and skills acquisition by the students of radiology. It is achieved by an analysis of a visual attention distribution patterns during image-based tasks solving. The concept is to use the eye-tracking data to recognize the way how the radiographic images are read by recognized experts, radiography residents involved in the training program, and untrained...
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Trailing-Edge Separation Control of a NACA 0015 Airfoil Using Dielectric-Barrier-Discharge Plasma Actuators
PublicationThis paper presents a part of the works conducted in the Plasmaero European project (task 3.1), where the trailing-edge flow separation of a NACA 0015 airfoil has been controlled using four different dielectric barrier discharge (DBD) actuator types at three institutions across Europe. The results show that it is possible to enhance the aerodynamic performance of aircraft at speeds up to 40 m/s. Dielectric-barrier-discharge vortex...
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Efficient Complex Root Tracing Algorithm for Propagation and Radiation Problems
PublicationAn efficient complex root tracing algorithm for propagation and radiation problems is presented. The proposed approach is based on a discretization of Cauchy’s Argument Principle and its generalization to the C × R space. Moreover, an engagement of the tracing process with a global root finding algorithm recently presented in the literature is performed. In order to confirm a validity and efficiency of the proposed technique, a...
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Are Pair Trading Strategies Profitable During COVID-19 Period?
PublicationPair trading strategy is a well-known profitable strategy in stock, forex, and commodity markets. As most of the world stock markets declined during COVID-19 period, therefore this study is going to observe whether this strategy is still profitable after COVID-19 pandemic. One of the powerful algorithms of DBSCAN under the umbrella of unsupervised machine learning is applied and three clusters were formed by using market and accounting...
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Improvement of Attention, Executive Functions, and Processing Speed in Elderly Women as a Result of Involvement in the Nordic Walking Training Program and Vitamin D Supplementation
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Analysis of the properties of the YSTF ceramics materials before and after reduction
Open Research DataThe valence of titanium in reduced YSTF ceramics materials was investigated. Ceramics were reduced by annealing in a hydrogen atmosphere. For comparison unreduced sample was also measured. Valance state was measured by XPS method.
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Innovations in Education and Teaching International (Formerly: Educational and Training Technology International)
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Body fat, energy balance and estradiol levels: a study based on hormonal profiles from complete menstrual cycles
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The Balance of Outlays and Effects of Restructuring Hard Coal Mining Companies in Terms of Energy Policy of Poland PEP 2040
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Integrated plant-wide modelling for evaluation of the energy balance and greenhouse gas footprint in large wastewater treatment plants
PublicationModern wastewater treatment plants (WWTPs) should maintain a balance between three combined sustainability criteria, including effluent quality, energy performance and greenhouse gas (GHG) emissions. All of these criteria were considered in the integrated plant-wide model developed in this study. The proposed model incorporates new features, including: (i) the addition of associated facilities to the overall energy balance and...
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Cellulosic bionanocomposites based on acrylonitrile butadiene rubber and Cuscuta reflexa: adjusting structure-properties balance for higher performance
PublicationDesign and manufacture of cellulosic nanocomposites with acceptable performance is in the period of a transition from fantasy to reality. Typically, cellulosic nanofillers reveal poor compatibility with polymer matrices. Thus, adjusting the balance between structure and properties of cellulosic bionanocomposites by careful selection of parent ingredients is the first priority. Herein, we incorporated Cuscuta reflexa derived cellulose...
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Advanced Supervisory Control System Implemented at Full-Scale WWTP—A Case Study of Optimization and Energy Balance Improvement
PublicationIn modern and cost-eective Wastewater Treatment Plants (WWTPs), processes such as aeration, chemical feeds and sludge pumping are usually controlled by an operating system integrated with online sensors. The proper verification of these data-driven measurements and the control of different unit operations at the same time has a strong influence on better understanding and accurately optimizing the biochemical processes at WWTP—especially...
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Evaluation of the Quality of Raspberries (Rubus idaeus L.) Grown in Balanced Fertilization Conditions
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Trends in Locally Balanced Energy Systems without the Use of Fossil Fuels: A Review
PublicationIn recent years, the idea of the operation of energy systems (power systems, heating systems) has changed significantly. This paper is an overview of locally balanced energy systems without the use of fossil fuels. The paper justifies the concept of local energy balancing in a new energy system that does not use fossil fuels (coal, natural gas, and crude oil), based on European Union guidelines and formal documents as well as the...
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Balanced Spider Monkey Optimization with Bi-LSTM for Sustainable Air Quality Prediction
PublicationA reliable air quality prediction model is required for pollution control, human health monitoring, and sustainability. The existing air quality prediction models lack efficiency due to overfitting in prediction model and local optima trap in feature selection. This study proposes the Balanced Spider Monkey Optimization (BSMO) technique for effective feature selection to overcome the local optima trap and overfitting problems....
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Rediscovering Automatic Detection of Stuttering and Its Subclasses through Machine Learning—The Impact of Changing Deep Model Architecture and Amount of Data in the Training Set
PublicationThis work deals with automatically detecting stuttering and its subclasses. An effective classification of stuttering along with its subclasses could find wide application in determining the severity of stuttering by speech therapists, preliminary patient diagnosis, and enabling communication with the previously mentioned voice assistants. The first part of this work provides an overview of examples of classical and deep learning...
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Badanie procesów miejskich metodami modelowania matematycznego
PublicationPytania o sposób organizacji miejskich usług i procesy wyboru ich lokalizacji w kontekście gwałtowności obecnych przemian cywilizacyjnych wydają się nabierać coraz większej wagi. Strategia kształtowania przestrzeni komercyjnych w mieście nie może dopuszczać by odbywało się ono wyłącznie pod dyktando samoistnych procesów rynkowych, lecz powinna być odpowiedzią na realne, dobrze zdiagnozowane potrzeby - zmierzać do polepszenia jakości...
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Badanie stanu izolacji wybranych urządzeń elektroenergetycznych
PublicationW referacie przedstawiono zasady wykonywania badań kontrolnych izolacji urządzeń elektroenergetycznych. Omówiono pomiar rezystancji izolacji przewodów i kabli, transformatorów, przekładników, przewodów szynowych, kondensatorów i baterii akumulatorów. Zwrócono uwagę na możliwość wykonania pomiaru prądu upływowego w przypadkach, kiedy pomiar rezystancji izolacji jest niewykonalny. Podano zakres prób wytrzymałości elektrycznej izolacji....
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Badanie stabilności chemicznej prepolimerów etero-uretanowych
PublicationPrepolimery eterouretanowe otrzymywano na podstawie oligoeterolu (Rokopolu D2002 lub PTMG 1000) i użytego w nadmiarze 4,4-diizocyjanianodifenylometanu. Określono wpływ szybkości obrotów trzpienia wiskozymetru, temperatury, procentowej zawartości grup NCOoraz rodzaju użytego oligoeterolu na lepkość otrzymanych produktów. Oceniono stabilność omawianych prepolimerów w toku przechowywania ich w ciągu 4 tygodni (zmiana zawartości...
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Badanie jakości transmisji w podsystemie EDGE.
PublicationPrzedstawiono wyniki badań symulacyjnych jakości transmisji w podsystemie EDGE, będącego rozwinięciem systemu GSM w kierunku systemu trzeciej generacji. Uzyskane wyniki odnoszą się do szybkiej transmisji danych, realizowanej w oparciu o komutację kanałów ECSD oraz komutację pakietów EGPRS dla wybranych środowisk propagacyjnych.
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Badanie stabilności uogólnionych liniowych układów dynamicznych
Publicationteoria stabilności zajmuje się jakościową analizą układów dynamicznych. do badania stabilności uogólnionych układów dynamicznych wykorzystuje się uogólnione wielomiany wykładnicze, które wykorzystywane są w metodzie wyznaczania odpowiedzi układów dynamicznych. takie ujęcie problemu stabilności pozwala badać stabilnoś szerokiej klasy układów dynamicznych w sposób jednolity, np. dla klasycznych układów dynamicznych ciągłych i dyskretnych...
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Badanie Właściwości hydrofobowych modyfikowanych proszków wapiennych
PublicationBrak właściwości hydrofobowych szerokiej gamy produktów niejednokrotnie ogranicza możliwości ich magazynowania, transportu czy stosowania. W niniejszej pracy podjęto próbę oceny możliwości stosowania standardowych metod badania charakteru powierzchni ciał stałych do określania stopnia hydrofobizacji. Prace takie mogą mieć zastosowanie np. w przemyśle budowlanym czy górniczym, ale również w dziedzinach bardziej precyzyjnych
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Badanie wydajności rozproszonego systemu telekomunikacyjnego VoIP
PublicationNiniejszy artykuł jest raportem z testów wydajności rozproszonego systemu telekomunikacyjnego VoIP. Testy zostały przeprowadzone w oparciu o zalecenia ETSI TS 168 008 dla dwóch konfiguracji systemów. Dla każdej z konfiguracji zbadano niezależnie wydajność realizacji rejestracji terminali abonenckich oraz żądań usług. Otrzymane wyniki zostały porównane z opracowanym wcześniej modelem teoretycznym. W wyniku dokonanej analizy wykazano...
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Badanie stanu techniki dla stanowiska laboratoryjnego
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BADANIE REZYSTANCJI ELEKTRYCZNEJ ŻYŁ WYBRANYCH PRZEWODÓW
PublicationW artykule omówiono wymagania przepisów w zakresie sprawdzania rezystancji elektrycznej przewodów niskiego napięcia. Podano wyniki badań rezystancji elektrycznej dla wybranych przewodów miedzianych. Na podstawie analiz fizykochemicznych określono zawartość zanieczyszczeń w miedzi.
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BADANIE EFEKTYWNOŚCI DEKODOWANIA ITERACYJNEGO KODÓW LDPC
PublicationW referacie zaprezentowano wyniki badań symulacyjnych jakości transmisji z wykorzystaniem nieregularnych kodów LDPC. Badania przeprowadzono z wykorzystaniem modulacji BPSK w kanale z addytywnym szumem gaussowskim AWGN. Na wykresach zostały przedstawione zależności bitowej stopy błędów BER od liczby iteracji dekodera oraz zależność liczby iteracji, które trzeba wykonać, aby uzyskać korekcję wszystkich błędów dla różnych wartości...
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Badanie odorowości wybranych frakcji odpadów komunalnych
PublicationSpośród różnych źródeł emisji odorów pochodzenia antropogenicznego duże znaczenie odgrywają zakłady, w których prowadzone są procesy unieszkodliwiania i przetwarzania odpadów. Wyróżnić tu należy operacje jednostkowe magazynowania, transportu wewnętrznego, segregacji, składowania na kwaterze, a także proces kompostowania. Skład i stężenie związków złowonnych zależą od warunków środowiskowych, rodzaju odpadów, ich wieku, stopnia...
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Photoelectron and threshold photoelectron valence spectra of pyridine
Publication. The pyridine molecule has been examined by the means of photoelectron and threshold photoelectron spectroscopies. Ionization energies were determined for both outer and inner valence orbitals and new adiabatic values were also resolved. Vibronic structure associated with several states was assigned mainly to be due to C–C stretches and ring bends. Additionally a Rydberg state converging to 7b2 state was ascribed. The data shown...
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Badanie wytrzymałości warstwowych połączeń elementówpoliuretanowo-stalowych
PublicationOpracowano skład systemu poliuretanowego oraz warunki jego nanoszenia na elementy stalowe, które nie wymagały dalszego ich wygrzewania. Zbadano wpływ stopnia rozwinięcia powierzchni płaskownika na wytrzymałość mechaniczną połączeń poliuretanowo-stalowych. Analizowano również wpływ czasu odparowywania rozpuszczalnika z kleju oraz jego grubość na wytrzymałość połączeń między materiałami.
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Badanie zanieczyszczenia osadów portowych związkami cynoorganicznymi
PublicationTributylocyna (TBT) jest składnikiem farb przeciwporostowych, stosowanych przez przemysł stoczniowy do zabezpieczania powierzchni stalowych na statkach przed ich porastaniem przez glony i skorupiaki. TBT dostaje sie do środowiska podczas malowania oraz eksploatacji statków - zanieczyszczając w szczególności wody i osady portowe oraz glebę wokół suchych doków.
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Moving object detection and tracking for the purpose of multimodal surveillance system in urban areas
PublicationBackground subtraction method based on mixture of Gaussians was employed to detect all regions in a video frame denoting moving objects. Kalman filters were used for establishing relations between the regions and real moving objects in a scene and for tracking them continuously. The objects were represented by rectangles. The objects coupling with adequate regions including the relation of many-to-many was studied experimentally...
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Generalized adaptive notch filters with frequency debiasing for tracking of polynomial phase systems
PublicationGeneralized adaptive notch filters are used for identification/tracking of quasi-periodically varying dynamic systems and can be considered an extension, to the system case, of classical adaptive notch filters. For general patterns of frequency variation the generalized adaptive notch filtering algorithms yield biased frequency estimates. We show that when system frequencies change slowly in a smooth way, the estimation bias can...
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Exploring Solanum tuberosum Epoxide Hydrolase Internal Architecture by Water Molecules Tracking
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Eye Tracking Based Experimental Study on Basic Digital Control Panel Usability
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Detection and isolation of manoeuvres in adaptive tracking filtering based on multiple model switching
PublicationW rozdziale przedstawia się model radarowego procesu pomiarowego oraz omawiaproblem modelowania trajektorii ruchu obiektów latających. Przyjęto klasę o-biektów cywilnych, których tor ruchu można opisać jak złożenie ruchu prosto-liniowego jednostajnego oraz ruchu prostoliniowego jednostajnie zmiennegolub ruchu po okręgu ze stałą prędkością (manewru). zastosowano również meto-dę estymacji nieznanej wartości wielkości sterującej,...
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The effect of groyne field on trapping macroplastic. Preliminary results from laboratory experiments
PublicationMacroplastic, a precursor of microplastic pollution, has become a new scope of research interest. However, the physical processes of macroplastic transport and deposition in rivers are poorly understood, which makes the decisions of where to locate macroplastic trapping infrastructure difficult. In this research, we conducted a series of experiments in a laboratory channel, exploring the impact of groynes and flexible artificial...
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Binocular Vision Impairments Therapy Supported By Contactless Eye-gaze Tracking System
PublicationBinocular vision impairments often result in partial or total loss of stereoscopic vision. The lack of binocular vision is a serious vision impairment that deserves more attention. Very important result of the binocular vision impairments is a binocular depth perception. This paper describes also a concept of a measurement and therapy system for the binocular vision impairments by using eye-gaze tracking system.
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Application of passive acoustic radar to automatic localization, tracking and classification of sound sources
PublicationA concept, practical realization and applications of the passive acoustic radar to automatic localization, tracking and classification of sound sources were presented in the paper. The device consists of a new kind of multichannel miniature sound intensity sensors and a group of digital signal processing algorithms. Contrary to active radars, it does not emit the scanning beam but after receiving surrounding sounds it provides...
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Multi-Camera Vehicle Tracking Using Local Image Features and Neural Networks
PublicationA method for tracking moving objects crossing fields of view of multiple cameras is presented. The algorithm utilizes Artificial Neural Networks (ANNs). Each ANN is trained to recognize images of one moving object acquired by a single camera. Local image features calculated in the vicinity of automatically detected interest points are used as object image parameters. Next, ANNs are employed to identify the same objects captured...
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Resolving Conflicts in Object Tracking in Video Stream Employing Key Point Matching
PublicationA novel approach to resolving ambiguous situations in object tracking in video streams is presented. The proposed method combines standard tracking technique employing Kalman filters with global feature matching method. Object detection is performed using a background subtraction algorithm, then Kalman filters are used for object tracking. At the same time, SURF key points are detected only in image sections identified as moving...
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Two-phase flow in heterogeneous porous media with non-wetting phase trapping
PublicationThis article presents amathematical model describing flowof two fluid phases in a heterogeneous porous medium. Zaproponowano model matematyczny przepływu dwufazowego w drobnoziarnistym ośrodku porowatym zawierającym inkluzje gruboziarniste. Inkluzje charakteryzują się niższą wartością ciśnienia wejścia dla płynu niezwilżającego (np. powietrze, ropa naftowa) niż materiał podstawowy. Podczas nawadniania takiego ośrodka dochodzi do...
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Experimental evaluation of estimator mean square error curve for cognitive tracking radar
PublicationTo make decisions, cognitive radar must rely on predictions of its own performance. In the literature, these predictions are usually based on some form of Cram\'er-Rao lower bound. This approach is scientifically sound, but it also brings a possibility of the cognitive controller overestimating radar performance. It therefore makes sense to back theoretical predictions with careful experiments which will verify their applicability....