Measurement Techniques

, Volume 60, Issue 10, pp 1022–1027 | Cite as

An Algorithm for Compensating the Effect of Deformations When Using the Shadow Background Method

  • A. Yu. Poroikov
  • O. A. Evtikhieva
  • I. N. Pavlov
Article
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An algorithm for compensating image distortions under the influence of the surface deformation of the background screen when using the shadow background method. The efficiency of the algorithm is confirmed. We experimentally determined the optimal marker to be used for searching on the image. We examined the capabilities of the algorithm in compensating for the shift and rotation of the surface of the background screen with an mean square deviation of not more than 0.43 pixels, determined by cross-correlation processing.

Keywords

shadow background method background oriented schlieren (BOS) image pattern correlation technique (IPCT) flow measurement deformation measurement digital image processing 

Notes

The study was supported by the Russian Foundation for Basic Research (Project No. 1637-60026 mol_a_dk).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • A. Yu. Poroikov
    • 1
  • O. A. Evtikhieva
    • 1
  • I. N. Pavlov
    • 1
  1. 1.National Research University – Moscow Power Engineering Institute (MPEI)MoscowRussia

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