Method for mathematical correction of ghosts in an image after reflection from the beam splitter plate

  • Anton O. Martinov A. N. Sevchenko Institute of Applied Physical Problems, Belarusian State University, 7 Kurchatava Street, Minsk 220045, Belarus
  • Hleb S. Litvinovich A. N. Sevchenko Institute of Applied Physical Problems, Belarusian State University, 7 Kurchatava Street, Minsk 220045, Belarus
  • Svetlana I. Guliaeva A. N. Sevchenko Institute of Applied Physical Problems, Belarusian State University, 7 Kurchatava Street, Minsk 220045, Belarus
  • Liliya A. Smolentseva Rocket and Space Corporation «Energia» named after S.P. Korolev, 4a Lenina Street, Koroljov 141070, Russia
  • Igor V. Rasskazov Rocket and Space Corporation «Energia» named after S.P. Korolev, 4a Lenina Street, Koroljov 141070, Russia

Abstract

When testing the scientific equipment «Videospectral system», developed for use as part of the space experiment «Uragan» on the Russian segment of the International Space Station, a problem of double image (ghosts) was discovered. It has been established that this effect is due to the peculiarities of the optical design of the equipment: the image is formed on the matrix in light reflected from the beam splitter plate. A software method for correcting ghosts in images is proposed and its effectiveness is assessed. A primary model for the formation of ghosts in the image has been constructed. Based on the results of a study of the appearance of ghosts in images obtained by the scientific equipment «Videospectral system» when shooting collimated radiation from a point source on an optical stand, more complex laws of the spatial formation of ghosts were determined, in comparison with the primary model, which were clarified in the new model. The combination of the developed spatial-brightness model for the formation of ghosts and the recursive method of their correction made it possible to eliminate ghosts from images obtained by the scientific equipment «Videospectral system».

Author Biographies

Anton O. Martinov, A. N. Sevchenko Institute of Applied Physical Problems, Belarusian State University, 7 Kurchatava Street, Minsk 220045, Belarus

PhD (physics and mathematics); senior researcher at the laboratory of optical and physical measurements

Hleb S. Litvinovich, A. N. Sevchenko Institute of Applied Physical Problems, Belarusian State University, 7 Kurchatava Street, Minsk 220045, Belarus

PhD (physics and mathematics); senior researcher at the laboratory of optical and physical measurements

Svetlana I. Guliaeva, A. N. Sevchenko Institute of Applied Physical Problems, Belarusian State University, 7 Kurchatava Street, Minsk 220045, Belarus

researcher at the laboratory of optical and physical measurements

Liliya A. Smolentseva, Rocket and Space Corporation «Energia» named after S.P. Korolev, 4a Lenina Street, Koroljov 141070, Russia

chief specialist

Igor V. Rasskazov , Rocket and Space Corporation «Energia» named after S.P. Korolev, 4a Lenina Street, Koroljov 141070, Russia

engineer of the 1st category

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Published
2024-09-25
Keywords: double reflection, parasitic reflection, ghosts, beam splitter, image processing, software correction
Supporting Agencies The authors would like to thank I. I. Bruchkovsky for the idea and conducting experiments with laser diodes and V. S. Fedoseev for assistance in processing the obtained data.
How to Cite
Martinov, A. O., Litvinovich, H. S., Guliaeva, S. I., Smolentseva, L. A., & Rasskazov , I. V. (2024). Method for mathematical correction of ghosts in an image after reflection from the beam splitter plate. Journal of the Belarusian State University. Physics, 3, 25-40. Retrieved from https://journals.bsu.by/index.php/physics/article/view/6356
Issue
No 3 (2024): Journal of the Belarusian State University. Physics
Section
Optical Data Processing

Copyright (c) 2024 Journal of the Belarusian State University. Physics

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