Wyniki wyszukiwania dla: fast object tracking - MOST Wiedzy

Wyszukiwarka

Wyniki wyszukiwania dla: fast object tracking

Wyniki wyszukiwania dla: fast object tracking

  • Integration of thermographic data with the 3D object model

    Publikacja

    - Rok 2014

    The aim of the paper is to present new method for merging the 3D model data of the measured object with thermograms. Our technique is based on the combination of visual 3D imaging technique and thermal imaging technique, which maps the 2D thermograms on to 3D anatomical mesh model. The combination of these imaging modalities allows the generation of combined 3D and thermal data from which thermal signatures can be verified and...

  • Three-fast-searchable graphs

    Publikacja

    - DISCRETE APPLIED MATHEMATICS - Rok 2013

    In the edge searching problem, searchers move from vertex to vertex in a graph to capture an invisible, fast intruder that may occupy either vertices or edges. Fast searching is a monotonic internal model in which, at every move, a new edge of the graph G must be guaranteed to be free of the intruder. That is, once all searchers are placed the graph G is cleared in exactly |E(G)| moves. Such a restriction obviously necessitates...

    Pełny tekst do pobrania w portalu

  • Application of gaze tracking technology to quality of experience domain

    Publikacja

    - Rok 2010

    A new methodological approach to study subjective assessment results employing gaze tracking technology is shown. Notions of Human-Computer Interaction (HCI) and Quality of Experience (QoE) are shortly introduced in the context of their common application. Then, the gaze tracking system developed at the Multimedia Systems Department (MSD) of Gdansk University of Technology (GUT) is presented. A series of audio-visual subjective...

  • A Perspective on Fast-SPICE Simulation Technology

    Publikacja

    - Rok 2009

    This chapter presents an introduction to the area of accelerated transistor-level (‘fast-SPICE’) simulation for automated verification and characterization of integrated circuits (ICs) from technologist’s perspective. It starts with outlining goals, expectations and typical usage models for fast-SPICE simulators, stressing how they differ from regular SPICE tools. It continues with presenting and classifying core technologies typically...

  • PHASE OBJECT OBSERVATION SYSTEM BASED ON DIFFRACTION PHASE MICROSCOPY

    In the paper authors present a special measurement system for observing phase objects. The diffraction phas microscopy makes it possible to measure the dimensions of a tested object with a nanometre resolution. To meet this requirement, it is proposed to apply a spatial transform. The proposed setup can be based either on a two lenses system (called 4 f ) or a Wollaston prism. Both solutions with all construction aspects are described...

    Pełny tekst do pobrania w portalu

  • The evaluation of eGlasses eye tracking module as an extension for Scratch

    In this paper we present the possibility of using eGlasses eye tracking module as an extension for Scratch programming tool which is a visual programming language supporting computer skills learning. The main concept behind this project is to setup the interface for rapid interaction design. Eye tracking is a powerful tool for hands free communication but for that requires a dedicated software. This software is rarely tailored...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Object serialization and remote exception pattern for distributed C++/MPI application

    MPI is commonly used standard in development of scientific applications. It focuses on interlanguage operability and is not very well object oriented. The paper proposes a general pattern enabling design of distributed and object oriented applications. It also presents its sample implementations and performance tests.

  • Investigation of tracking systems properties in CAVE-type virtual reality systems

    Publikacja

    In recent years, many scientific and industrial centers in the world developed a virtual reality systems or laboratories. One of the most advanced solutions are Immersive 3D Visualization Lab (I3DVL), a CAVE-type (Cave Automatic Virtual Environment) laboratory. It contains two CAVE-type installations: six-screen installation arranged in a form of a cube, and four-screen installation, a simplified version of the previous one. The...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Asynchronous Method of Simultaneous Object Position and Orientation Estimation with Two Transmitters

    This paper proposes an object location method for all types of applications, including the Internet of Things. The proposed method enables estimations of the position and orientation of an object on a plane or in space, especially during motion, by means of location signals transmitted simultaneously from two transmitters placed on the object at a known distance from each other. A mathematical analysis of the proposed method and...

    Pełny tekst do pobrania w portalu

  • Observing uncertainty in music tagging by automatic gaze tracking

    Publikacja

    - Rok 2011

    In this paper, a new approach to observe music file tagging process by employing a gaze tracking system is proposed. The study was conducted with the participation of twenty subjects having different musical experience. For the purpose of the experiments a website survey based on a musical database was prepared. It allowed to gather information about music experience of subjects along with music characteristics such as genre, tempo,...

  • On tracking properties of real-valued generalized adaptive notch filters

    Generalized adaptive notch filters (GANFs) 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. The paper presents results of local performance analysis of a real-valued GANF algorithm, i.e., algorithm designed to track parameters of a real-valued system. This is an extension of the previous work which focused...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • On Bayesian Tracking and Prediction of Radar Cross Section

    We consider the problem of Bayesian tracking of radar cross section. The adopted observation model employs the gamma family, which covers all Swerling cases in a unified framework. State dynamics are modeled using a nonstationary autoregressive gamma process. The principal component of the proposed solution is a nontrivial gamma approximation, applied during the time update recursion. The superior performance of the proposed approach...

    Pełny tekst do pobrania w portalu

  • Eye-Gaze Tracking-Based Telepresence System for Videoconferencing

    An approach to the teleimmersive videoconferencing system enhanced by the pan-tilt-zoom (PTZ) camera, controlled by the eye-gaze tracking system, is presented in this paper. An overview of the existing telepresence systems, especially dedicated to videoconferencing is included. The presented approach is based on the CyberEye eye-gaze tracking system engineered at the Multimedia Systems Department (MSD) of Gdańsk University of Technology...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Exploiting audio-visual correlation by means of gaze tracking

    This paper presents a novel means for increasing audio-visual correlation analysis reliability. This is done based on gaze tracking technology engineered at the Multimedia Systems Department of the Gdansk University of Technology, Poland. In the paper, the past history and current research in the area of audio-visual perception analysis are shortly reviewed. Then the methodology employing gaze tracking is presented along with the...

    Pełny tekst do pobrania w portalu

  • Surgical tool tracking by on-line selection of structural correlation filters

    Publikacja

    In visual tracking of surgical instruments, correlation filtering finds the best candidate with maximal correlation peak. However, most trackers only consider capturing target appearance but not target structure. In this paper we propose surgical instrument tracking approach that integrates prior knowledge related to rotation of both shaft and tool tips. To this end, we employ rigid parts mixtures model of an instrument. The rigidly...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Parallel frequency tracking with built-in performance evaluation

    The problem of estimation of instantaneous frequency of a nonstationary complex sinusoid (cisoid) buried in wideband noise is considered. The proposed approach employs a bank of adaptive notch filters, extended with a nontrivial performance assessment mechanism which automatically chooses the best performing filter in the bank. Additionally, a computationally attractive method of implementing the bank is proposed. The new structure...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Eye tracking within near-to-eye display

    Publikacja

    - Rok 2015

    In this paper we investigate the effectiveness of the gaze interaction within near-to-eye display. The practical aspect of the paper is about combining an eye tracker with smart glasses. Presented research is related with the eGlasses project, which is focused on the development of an open platform in the form of multisensory electronic glasses and related interaction methods. One of the implemented interaction methods is the one...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Testability of distributed object.

    Publikacja
    • M. Sławińska

    - Rok 2004

    Wyróżniono trzy poziomy zdalnego dostępu do obiektu: ograniczony, częściowy; pełny i sformułowano warunki testowalności dla dwu klas aplikacji rozproszonych: własnych i obcych. Zaproponowano metodę zdalnego monitorowania stanu obiektów zaimplementowanych =na platformie COBRA

  • Robustness in Compressed Neural Networks for Object Detection

    Publikacja

    Model compression techniques allow to significantly reduce the computational cost associated with data processing by deep neural networks with only a minor decrease in average accuracy. Simultaneously, reducing the model size may have a large effect on noisy cases or objects belonging to less frequent classes. It is a crucial problem from the perspective of the models' safety, especially for object detection in the autonomous driving...

    Pełny tekst do pobrania w portalu

  • Eye-tracking everywhere - software supporting disabled people in interaction with computers

    Publikacja

    - Rok 2022

    In 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...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Hybrid System for a Person Tracking in Harsh Indoor Environments

    In the article, the prototype of a system for a person tracking in a harsh indoor environment, especially when no other commercially available radiolocalization system can be used, was briefly described. The prototype realizes the data fusion, i.e. combines data from inertial and environmental sensors and radio distance measurements to estimate the position of a moving person. It is worth noting that the concept and practical realization...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Fast Approximate String Search for Wikification

    Publikacja

    The paper presents a novel method for fast approximate string search based on neural distance metrics embeddings. Our research is focused primarily on applying the proposed method for entity retrieval in the Wikification process, which is similar to edit distance-based similarity search on the typical dictionary. The proposed method has been compared with symmetric delete spelling correction algorithm and proven to be more efficient...

    Pełny tekst do pobrania w portalu

  • A Survey of Fast-Recovery Mechanisms in Packet-Switched Networks

    Publikacja
    • M. Chiesa
    • A. Kamisinski
    • J. Rak
    • G. Retvari
    • S. Schmid

    - IEEE Communications Surveys and Tutorials - Rok 2021

    In order to meet their stringent dependability requirements, most modern packet-switched communication networks support fast-recovery mechanisms in the data plane. While reactions to failures in the data plane can be significantly faster compared to control plane mechanisms, implementing fast recovery in the data plane is challenging, and has recently received much attention in the literature. This survey presents a systematic,...

    Pełny tekst do pobrania w portalu

  • An unorthodox view on the problem of tracking facial expressions

    Publikacja

    - Rok 2014

    Recent developments in imaging cameras has opened a new way of analyzing facial expression. We would like to take advantage from this new technology and present a method of imaging and processing images of human face as a response to the particular stimuli. The response in this case is represented by the facial expressions and the stimuli are still images representing six basic emotions according to Eckmann. Working hypothesis...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • An unorthodox view on the problem of tracking facial expressions

    Recent developments in imaging cameras has opened a new way of analyzing facial expression. We would like to take advantage from this new technology and present a method of imaging and processing images of human face as a response to the particular stimuli. The response in this case is represented by the facial expressions and the stimuli are still images representing six basic emotions according to Eckmann. Working hypothesis...

    Pełny tekst do pobrania w portalu

  • A SEARCH OF AN INDUCER GEOMETRY THAT IS BENEFICIAL FOR LIFTING PARAMETERS OF A LIFTED OBJECT OF A SELECTED SHAPE

    Publikacja

    The literature describes acoustic levitation phenomena with the utilization of air squeeze film between the vibrating inducer and the lifted object. The objective of the study is to determine the shape of the inducer with vibration characteristics that would allow the levitation of an object of the assumed geometry. In this paper, the influence of the dimension ratio of the inducer on the frequency of the first mode of vibration...

    Pełny tekst do pobrania w portalu

  • CMGNet: Context-aware middle-layer guidance network for salient object detection

    Publikacja
    • K. Shaheed
    • I. Ullah
    • S. Hussain
    • W. Ali
    • S. Ali Khan
    • Y. Yin
    • Y. Ma

    - Rok 2024

    Salient object detection (SOD) is a critical task in computer vision that involves accurately identifying and segmenting visually significant objects in an image. To address the challenges of gridding issues and feature...

  • Real-time facial feature tracking in poor quality thermal imagery

    Publikacja

    Recently, 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...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Using Disparity Map for Moving Object Position Estimation in Pan Tilt Camera Images

    Publikacja

    - Rok 2022

    In this paper we present the algorithm for rapid moving object position estimation in an images acquired from pan tilt camera. Detection of a moving object in a image acquired from a moving camera might be quite challenging. Standard methods that relay on analyzing two consecutive frames are not applicable due to the changing background. To overtake this problem we decided to evaluate the possibility of calculating a disparity...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • System for tracking multiple trains on a test railway track

    Several problems may arise when multiple trains are to be tracked using two IP camera streams. In this work, real-life conditions are simulated using a railway track model based on the Pomeranian Metropolitan Railway (PKM). Application of automatic clustering of optical flow is investigated. A complete tracking solution is developed using background subtraction, blob analysis, Kalman filtering, and a Hungarian algorithm. In total,...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • System for tracking multiple trains on a test railway track

    Publikacja

    Several problems may arise when multiple trains are to be tracked using two IP camera streams. In this work, real-life conditions are simulated using a railway track model based on the Pomeranian Metropolitan Railway (PKM). Application of automatic clustering of optical flow is investigated. A complete tracking solution is developed using background subtraction, blob analysis, Kalman filtering, and a Hungarian algorithm. In total,...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Tonality Estimation and Frequency Tracking of Modulated Tonal Components

    A novel method for tonality estimation and frequency tracking of tonal components modulated in frequency and amplitude is presented. The algorithm detects the local maxima of magnitude spectra corresponding to three contiguous frames of a signal and matches them into the tonal track candidates. The magnitude-based and phase-based methods are used to estimate the frequency jumps between spectrum maxima belonging to the tonal track...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Selection of Visual Descriptors for the Purpose of Multi-camera Object Re-identification

    A comparative analysis of various visual descriptors is presented in this chapter. The descriptors utilize many aspects of image data: colour, texture, gradient, and statistical moments. The descriptor list is supplemented with local features calculated in close vicinity of key points found automatically in the image. The goal of the analysis is to find descriptors that are best suited for particular task, i.e. re-identification...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Gaze-tracking based audio-visual correlation analysis employing quality of experience methodology

    This paper investigates a new approach to audio-visual correlation assessment based on the gaze-tracking system developed at the Multimedia Systems Department (MSD) of Gdansk University of Technology (GUT). The gaze-tracking methodology, having roots in Human-Computer Interaction borrows the relevance feedback through gaze-tracking and applies it to the new area of interests, which is Quality of Experience. Results of subjective...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • An Optimal Power Point Tracking Algorithm in a Solar PV Generation System

    Publikacja

    - Acta Energetica - Rok 2019

    The 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...

    Pełny tekst do pobrania w portalu

  • Awareness evaluation of patients in vegetative state employing eye-gaze tracking system

    Application of eye-gaze tracking system to awareness evaluation is demonstrated. Hitherto awareness evaluation methods are presented. The assumptions of proposed method based on analysis of visual activity of patients in vegetative state are demonstrated. The eye-gaze tracking system ''Cyber-Eye'' developed at the Multimedia Systems Department employed to conducted experiments is presented. Research described in the paper indicates...

    Pełny tekst do pobrania w portalu

  • Multimedia interface using head movements tracking

    The presented solution supports innovative ways of manipulating computer multimedia content, such as: static images, videos and music clips and others that can be browsed subsequently. The system requires a standard web camera that captures images of the user face. The core of the system is formed by a head movement analyzing algorithm that finds a user face and tracks head movements in real time. Head movements are tracked with...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Modelling Object Behaviour in a Video Surveillnace System Using Pawlak's Flowgraph

    Publikacja

    In this paper, methodology of acquisition and processing of video streams for the purpose of modelling object behaviour is presented. Multilevel contextual video processing was also mentioned. The Pawlak’s flowgraph is used as a container for the knowledge related to the behaviour of objects in the area supervised by a video surveillance system. Spatio-temporal dependencies in transitions between cameras can be easily changed in...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Cops, a fast robber and defensive domination on interval graphs

    Publikacja

    - THEORETICAL COMPUTER SCIENCE - Rok 2019

    The game of Cops and ∞-fast Robber is played by two players, one controlling c cops, the other one robber. The players alternate in turns: all the cops move at once to distance at most one each, the robber moves along any cop-free path. Cops win by sharing a vertex with the robber, the robber by avoiding capture indefinitely. The game was proposed with bounded robber speed by Fomin et al. in “Pursuing a fast robber on a graph”,...

    Pełny tekst do pobrania w portalu

  • Automatic Optimization Of Adaptive Notch Filter’s Frequency Tracking

    Publikacja

    - Rok 2014

    Estimation of instantaneous frequency of narrowband com- plex sinusoids is often performed using lightweight algo- rithms called adaptive notch filters. However, to reach high performance, these algorithms require careful tuning. The paper proposes a novel self-tuning layer for a recently intr o- ducedadaptive notch filtering algorithm. Analysis shows th at, under Gaussian random-walk type assumptions, the resultin g solution converges...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Generalized adaptive notch filters with frequency debiasing for tracking of polynomial phase systems

    Publikacja

    Generalized 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...

    Pełny tekst do pobrania w portalu

  • New and Fast Analytical Techniques in Food Quality Analysis

    Kursy Online
    • K. Parchem
    • I. Koss-Mikołajczyk
    • A. Sommer
    • P. Filipkowski
    • H. Staroszczyk

  • Modeling Object Oriented Systems via Controlled English Verbalization of Description Logic

    Publikacja

    - Rok 2010

    The need for formal methods for Object Oriented (OO) systems resulted in methods like UML and Lepus3 that are de-facto graphical languages equipped with formal tools that are able to handle the design of OO systems. However, they lack precise semantics which might lead to problems, such as inconsistencies or redundancies. On the other hand, to our knowledge, there is no approach that allows one to understand and follow the requirements...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • The Influence of Camera and Optical System Parameters on the Uncertainty of Object Location Measurement in Vision Systems

    The article presents the influence of the camera and its optical system on the uncertainty of object position measurement in vision systems. The aim of the article is to present the methodology for estimating the combined standard uncertainty of measuring the object position with a vision camera treated as a measuring device. The identification of factors affecting the location measurement uncertainty and the determination of their...

    Pełny tekst do pobrania w portalu

  • Intelligent PI controller and its application to dissolved oxygen tracking problem

    The paper addresses design, calibration, implementation and simulation of the intelligent PI controller used for dissolved oxygen (DO) tracking in wastewater treatment plant (WWTP). The calibration process presented in this paper utilizes both engineering and scientific methods. Verification of the control system design method was obtained via simulation experiments.

    Pełny tekst do pobrania w portalu

  • Spiral Search Grasshopper Features Selection with VGG19-ResNet50 for Remote Sensing Object Detection

    Publikacja
    • A. Stateczny
    • G. Uday Kiran
    • G. Bindu
    • K. Ravi Chythanya
    • K. Ayyappa Swamy

    - Remote Sensing - Rok 2022

    Remote sensing object detection plays a major role in satellite imaging and is required in various scenarios such as transportation, forestry, and the ocean. Deep learning techniques provide efficient performance in remote sensing object detection. The existing techniques have the limitations of data imbalance, overfitting, and lower efficiency in detecting small objects. This research proposes the spiral search grasshopper (SSG)...

    Pełny tekst do pobrania w portalu

  • Target tracking in RIS

    Publikacja
    • W. Kazimierski
    • A. Stateczny

    - Rok 2009

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Local Texture Pattern Selection for Efficient Face Recognition and Tracking

    This paper describes the research aimed at finding the optimal configuration of the face recognition algorithm based on local texture descriptors (binary and ternary patterns). Since the identification module was supposed to be a part of the face tracking system developed for interactive wearable computer, proper feature selection, allowing for real-time operation, became particularly important. Our experiments showed that it is...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Fast GC as a useful tool for authenticity assessment of kiwifruit

    Kiwifruit is one of the healthiest fruits due to its high content of biologically active substances and nutrients. The most popular species of Actinidia (kiwifruit) are the Actinidia deliciosa fruits called kiwi and Actinidia chinensis commonly called golden kiwi, while the lesser known species is Actinidia arguta known as mini kiwi. Bioactivities and nutrients of Actinidia are influenced by species and cultivars. It is very important...

    Pełny tekst do pobrania w portalu

  • Increasing the Efficiency of Ontology Alignment by Tracking Changes in Ontology Evolution

    Publikacja

    - LECTURE NOTES IN COMPUTER SCIENCE - Rok 2014

    In this paper we present a development of our ontology alignment framework based on varying semantics of attributes. Emphasising the analysis of explicitly given descriptions of how attributes change meanings they entail while being included within different concepts have been proved useful. Moreover, we claim that it is consistent with the intuitive way how people see the real world and how they find similarities and correspondences...

    Pełny tekst do pobrania w serwisie zewnętrznym