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Information × Registration Number 0217U000206, 0114U004005 , R & D reports Title Development of noiseimmunity processing methods of diagnostic imaging of constructional materials for the quantitative estimation of their parameters and characteristics popup.stage_title Head Vorobel Roman, Registration Date 31-01-2017 Organization Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine popup.description2 Developed mathematical methods for constructing arithmetic operations of algebraic structures that modelling human vision and are based on the logarithmic dependence of response of the visual system to light excitation. Parameter of function generator shift is developed, which takes into account additional object lighting. The use of subtraction operations of algebraic structures of logarithmic type provided reduction of influence of light heterogeneity in the analysis of digital images and enhanced their discernibility. The method of compensation of nonlinear geometric distortion structures of objects of circular welded joint of pipe caused by the nature of radiographic image formation. This made possible to establish the actual size of welding defects regardless of their position on the radiographic film. Experimentally shown that the relative error of the width of the defect is 1.7% and the relative error of defect depth decreased in half. Product Description popup.authors Івасенко Ірина Богданівна Берегуляк Олена Романівна Боцян Володимир Володимирович Владика Галина Ігорівна Воробель Роман Антонович Гапонюк Ярослав Васильович Журавель Ігор Михайлович Мандзій Теодор Стефанович Мандзюк Тетяна Прохорівна Разворотнєва Людмила Олександрівна Сущик Костянтин Володимирович popup.nrat_date 2020-04-02 Close