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Wyszukujesz frazę "intensity detection" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Wide-band optical fibre system for investigation of MEMS and NEMS deflection
    Autorzy:
    Orłowska, K.
    Świątkowski, M.
    Kunicki, P.
    Słupski, P.
    Sankowska, A.
    Gotszalk, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/221558.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fibre optic sensors
    amplitude detection
    intensity detection
    MEMS/NEMS deflection measurement
    Opis:
    In this work the construction of experimental setup for MEMS/NEMS deflection measurements is presented. The system is based on intensity fibre optic detector for linear displacement sensing. Furthermore the electronic devices: current source for driving the light source and photodetector with wide-band preamplifier are presented.
    Źródło:
    Metrology and Measurement Systems; 2014, 21, 3; 381-388
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Melanoma Skin Cancer and Nevus Mole Classification using Intensity Value Estimation with Convolutional Neural Network
    Autorzy:
    Ashafuddula
    Islam, Rafiqul
    Powiązania:
    https://bibliotekanauki.pl/articles/27312851.pdf
    Data publikacji:
    2023
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    melanoma detection
    medical imaging
    image classification
    convolutional neuralnetwork
    intensity value estimation
    canny edge detection
    Opis:
    Melanoma skin cancer is one of the most dangerous and life-threatening cancer. Exposure to ultraviolet rays may damage the skin cell's DNA, which causes melanoma skin cancer. However, it is difficult to detect and classify melanoma and nevus mole at the immature stages. In this work, an automatic deep learning system is developed based on the intensity value estimation with a convolutional neural network model (CNN) to detect and classify melanoma and nevus mole more accurately. Since intensity levels are the most distinctive features for object or region of interest identification, the high-intensity pixel values are selected from the extracted lesion images. Incorporating those high-intensity features into the CNN improves the overall performance than the state-of-the-art methods for detecting melanoma skin cancer. To evaluate the system, we used 5-fold cross-validation. Experimental results show that a superior percentage of accuracy (92.58%), Sensitivity (93.76%), Specificity (91.56%), and Precision (90.68%) are achieved.
    Źródło:
    Computer Science; 2023, 24 (3); 277--296
    1508-2806
    2300-7036
    Pojawia się w:
    Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of terrestrial laser scanning measurements for wind turbine blade condition surveying
    Autorzy:
    Stałowska, Paulina
    Suchocki, Czesław
    Zagubień, Adam
    Powiązania:
    https://bibliotekanauki.pl/articles/27311749.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    Terrestrial Laser Scanning
    TLS
    intensity parameter
    measurement methodology
    wind turbine blades
    condition surveying
    defects detection
    Opis:
    Wind turbines are among the key equipment needed for eco-friendly generation of electricity. Maintaining wind turbines in excellent technical condition is extremely important not only for safety but also for efficient operation. Studies indicate that defects in the external structure of a turbine blade reduce energy production efficiency. This research investigated the potential of the terrestrial laser scanning technology to examine the technical conditions of wind turbine blades. The main aim of the study was to examine whether terrestrial laser scanning measurements can be valuable for wind turbine blade condition surveying. The investigation was based on the radiometric analyses of point clouds, which forms the novelty of the present study. Condition monitoring focuses on the detection of defects, such as cracks, cavities, or signs of erosion. Moreover, this study consisted of two stages. The next objective entailed the development and examination of two different measurement methods. It was then identified which method is more advantageous by analysing their effectiveness and other economic considerations.
    Źródło:
    Metrology and Measurement Systems; 2023, 30, 3; 403--422
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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