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Diagnostics of materials by diffraction optical methods

https://doi.org/10.26896/1028-6861-2022-88-3-23-28

Abstract

The internal state of the material formed as a result of technological processing, indirectly affects the state of the material surface. A non-contact method of non-destructive control of the state of materials based on a visual analysis of the surface, requires high-quality images which can be obtained either using lens objectives or lenseless technologies. The results of studying image processing obtained by lensless technologies are presented. We used methods for modeling phase masks and image processing based on Gerchberg – Saxton iterative algorithms, adaptive-additive and phase mask rotation based algorithms. Materials such as granite, graphite, sand and carbon steel were analyzed. It is shown that the construction of cameras can provide significant reduction of their dimensions at the same or even improved characteristics. The images obtained using lensless technologies and the proposed methods of image processing also provide a significant increase in the accuracy of visual inspection of materials. The results obtained can be used in refining lensless technologies, improving the quality of images and reducing time of their processing.

About the Authors

V. I. Marchuk
Don State Technical University
Russian Federation

Vladimir I. Marchuk

147, ul. Shevchenko, Shakhty, Rostovskaya obl., 346500



A. I. Okorochkov
Don State Technical University
Russian Federation

Alexander I. Okorochkov

147, ul. Shevchenko, Shakhty, Rostovskaya obl., 346500



V. V. Semenov
Don State Technical University
Russian Federation

Vladimir V. Semenov

147, ul. Shevchenko, Shakhty, Rostovskaya obl., 346500



I. A. Sadrtdinov
Don State Technical University
Belarus

Ilya A. Sadrtdinov

147, ul. Shevchenko, Shakhty, Rostovskaya obl., 346500



I. O. Nikishin
Don State Technical University
Russian Federation

Ivan O. Nikishin

147, ul. Shevchenko, Shakhty, Rostovskaya obl., 346500



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Review

For citations:


Marchuk V.I., Okorochkov A.I., Semenov V.V., Sadrtdinov I.A., Nikishin I.O. Diagnostics of materials by diffraction optical methods. Industrial laboratory. Diagnostics of materials. 2022;88(3):23-28. (In Russ.) https://doi.org/10.26896/1028-6861-2022-88-3-23-28

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ISSN 1028-6861 (Print)
ISSN 2588-0187 (Online)