10.14489/td.2025.01.pp.035-048

2025, 01 January

DOI: 10.14489/td.2025.01.pp.035-048

Kuvshinnikov V. S., Kovshov E. E.
GEOMETRICAL UNSHARPNESS EFFECT SIMULATION FOR DIGITAL TWINS OF OBJECTS' RADIOGRAPHIC IMAGING
pp. (35-48)

Abstract. The main objective in virtual reality technology application within the scope of training programs for qualified nondestructive testing (NDT) specialists is the development of their professional skills, formation of stable behaviour patterns that ensure strict compliance with the industrial safety rules and requirements, clear goal-setting and confident actions in the course of intensive practical activity. One of the important factors to consider when performing radiographic inspection is geometric unsharpness. The method of geometric unsharpness effect simulation in the interactive simulator of industrial radiographic inspection for the NDT specialists' professional skills development is proposed. Several approaches are considered for simulation of unsharpness effect for obtaining the results of radiographic inspection of objects' digital twins. A method of implementation based on model vertex processing using source decomposition into concentric contours is proposed. Restrictions and assumptions which allow to reduce the amount of video memory required for processing are considered. The developed algorithm of projection boundaries formation allows to achieve their specific shape with regard to the orientation of the radiation source focal spot. The user of the simulator of industrial radiographic inspection is provided with an interactive tool for studying the relationship between his actions during exposure setting and the quality of the acquired radiographic images.

Keywords: virtual reality, radiography simulator, computer technology, geometric unsharpness, flexible detector, mathematical modelling, nondestructive testing.

+ - About the Authors Click to collapse

V. S. Kuvshinnikov, E. E. Kovshov (Joint-Stock Company “Research and Development Institute of Construction Technology – Atomstroy”, Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Kovshov E. E., Kuvshinnikov V. S., Kazakov D. F. (2023). The use of digital twins models while a radiographic image formation in a virtual reality environment. Kontrol'. Diagnostika, Vol. 26 303(9), 4 ‒ 15. [in Russian language] DOI: 10.14489/td.2023.09.pp.004-015
2. Non-destructive radiation control. Terms and definitions. (2019). Ru Standard No. GOST R 55776‒2013. Moscow: Standartinform. [in Russian language]
3. Non-destructive testing. Welded connections. Radiographic method. Technical requirements. (1983). Standard No. GOST 7512–82. Moscow: Izdatel'stvo standartov. [in Russian language]
4. Non-destructive testing of welded joints. Radiographic control. Part 1. Methods of X-ray and gammagraphic control using film. Technical requirements. (2018). International Standard No. GOST ISO17636-1‒2017. Moscow: Standartinform. [in Russian language]
5. Marques M. A., Frere A. F., de Oliveira H. J. Q. et al. (1996). Computer Simulation of the Geometric Unsharpness Effect on Radiologic Images. Applications of Digital Image Processing XIX. SPIE, 2847, 609 ‒ 617.
6. Wu H., Wang Q., Wu Y. et al. (2024). A Correction Algorithm of Geometric Unsharpness for Neutron Radiographs Via Adaptive Fusion and Total Variation. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1066.
7. Baldo C. R., Probst G. M., Dewulf W. (2020). Performance Evaluation of an Image-Based Measurement Method Used to Determine the Geometric Errors of Cone-Beam CT Instruments. Advances in Industrial and Manufacturing Engineering, 1.
8. The Industry's Foundation for High Performance Graphics. (2017). The Khronos Group Inc. Retrieved from https://www.khronos.org/opengl/ (Accessed: 08.09.2024).
9. Lengyel E. (2012). Mathematics for 3D Game Programming and Computer Graphics. 3rd ed. Course Technology Press.
10. Tyukachev N. A., Hlebostroev V. G. (2020). C#. Programming 2D and 3D vector graphics: textbook. 4th ed. Saint Petersburg: Lan'. [in Russian language] ISBN 978-5-8114-4754-1
11. Smirnov A. V., Kosarina E. I., Demidov A. A., Suvorov P. V. (2024). Criteria for the optimal mode of non-destructive testing by digital radiography. Kontrol'. Diagnostika, 27(7), 4 – 14. [in Russian language] DOI: 10.14489/td.2024.07.pp.004-014
12. Kovshov E. E., Kuvshinnikov V. S. (2024). Testing object image generation on flexible detector in the industrial radiography simulator environment. Kontrol'. Diagnostika, 27(3), 23 – 34. [in Russian language] DOI: 10.14489/td.2024.03.pp.023-034
13. Kovshov E. E., Kuvshinnikov V. S., Kazakov D. F. (2021). Radiographic image of a non-destructive testing object generation in a virtual reality environment. Kontrol'. Diagnostika, Vol. 24 278(8), 14 – 22. [in Russian language] DOI: 10.14489/td.2021.08.pp.014-022
14. Conformity assessment system in the field of nuclear energy use. Conformity assessment in the form of control. Unified methods. Radiographic control. Technical requirements. (2018). Ru Standard No. GOST R 50.05.07‒2018. Moscow: Standartinform. [in Russian language]
15. Non-destructive testing. Radiation flaw detection methods. Scope of application. (1991). Standard No. GOST 20426‒82. Moscow: Izdatel'stvo standartov. [in Russian language]

+ - Purchase digital version of a single article Click to collapse

This article is available in electronic format (PDF).

The cost of a single article is 700 rubles. (including VAT 20%). After you place an order within a few days, you will receive following documents to your specified e-mail: account on payment and receipt to pay in the bank.

After depositing your payment on our bank account we send you file of the article by e-mail.

To order articles please copy the article doi:

10.14489/td.2025.01.pp.035-048

and fill out the form