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Wyświetlanie 1-3 z 3
Tytuł:
Machine learning versus human-developed algorithms in image analysis of microstructures
Autorzy:
Piwowarczyk, Adam
Wojnar, Leszek
Powiązania:
https://bibliotekanauki.pl/articles/103967.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
image analysis
object detection
neural networks
machine learning
analiza obrazu
detekcja obiektów
sieci neuronowe
uczenie maszynowe
Opis:
Automatic image analysis is nowadays a standard method in quality control of metallic materials, especially in grain size, graphite shape and non-metallic content evaluation. Automatically prepared solutions, based on machine learning, constitute an effective and sufficiently precise tool for classification. Human-developed algorithms, on the other hand, require much more experience in preparation, but allow better control of factors affecting the final result. Both attempts were described and compared.
Źródło:
Quality Production Improvement - QPI; 2019, 1, 1; 412-416
2657-8603
Pojawia się w:
Quality Production Improvement - QPI
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of selected shading correction methods
Autorzy:
Gądek-Moszczak, Aneta
Wojnar, Leszek
Piwowarczyk, Adam
Powiązania:
https://bibliotekanauki.pl/articles/88714.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
image analysis
shade correction
image distortion
analiza obrazu
korekcja cienia
korekcja obrazu
Opis:
Shade effect is a defect of the images very often invisible for human vision perception but may cause difficulties in proper image processing and object detection especially if the aim of the task is to proceed detection and quantitative analysis of the objects. There are several methods in image processing systems or presented in the literature, however some of them introduce unexpected changes in the images, what may interfere the final quantitative analysis. In order to solve this problem, authors proposed a new method for shade correction, which is based on simulation of the image background based on analytical methods which return pixel values representing smooth grey level changes. Comparison of the effects of correction by applying standard methods and the method proposed are presented.
Źródło:
System Safety : Human - Technical Facility - Environment; 2019, 1, 1; 819-826
2657-5450
Pojawia się w:
System Safety : Human - Technical Facility - Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Evaluation of the Technical Condition of the ROTAX 912S Engine Based on Spectrographic Oil Analysis
Autorzy:
Kozuba, Jarosław
Peruń, Grzegorz
Stołtny, Bartosz
Stołtny, Adam
Wojnar, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2174783.pdf
Data publikacji:
2022
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
aircraft operation
maintenance
oil analysis
safety
eksploatacja samolotów
konserwacja
analiza oleju
bezpieczeństwo
Opis:
Flight safety, which characterizes the aviation industry, is an important element that contributes to increasing the trust of customers and passengers. The aforementioned factor closely corresponds to the reliability of aircraft and their individual components, including power units. Over one hundred years of development of aviation techniques has led aviation to the currently observed level of safety and reliability. Aviation techniques should be understood as technologies as well as local and global regulations affecting individual branches of the industry. Guidelines No. 9 of the President of Polish Civil Authority of August 29, 2016 on the inter-repair periods of piston engines, indicate the possibility of waiving the requirements related to the performance of major repairs, and a number of conditions must be met. One of the requirements set out in the Guidelines is performing a spectrographic analysis of engine oil in order to estimate the rate of wear of individual engine parts (ULC, 2016). The main goal of this study was to recognize whether regular analysis of engine oil may affect the assessment of the technical condition of aircraft piston engines based on the example of ROTAX 912S, thus affecting or not influencing the maintenance intervals. The engines referred to in the research were produced in the amount of about 2,000 units. Thus, these engines gained popularity as power units for airplanes, helicopters, and gyroplanes. With the increasing number of ROTAX units introduced into service, research into the technical condition becomes more important due to their percentage share in the market.
Źródło:
Safety & Defense; 2022, 2; 18--26
2450-551X
Pojawia się w:
Safety & Defense
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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