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Experimental Verification of the Parallax-Shift Method for Determining Height Differences of Fuel Assembly Heads from a Series of Television Images

https://doi.org/10.55648/1998-6920-2026-3-20-81-89

Abstract

This paper presents an experimental verification of the parallax-shift method for non-contact determination of height differences of fuel assembly heads from a series of television images obtained during arc-shaped movement of a single CCD camera. Consecutive video frames are considered as quasi-stereo pairs, from which the disparity of the centers of fuel assembly heads is calculated. An image processing algorithm has been implemented, including noise suppression, CLAHE contrast enhancement, adaptive binarization, morphological filtering, the Hough transform, and subpixel localization. The measurement results obtained with different quasi-stereo pair baselines are compared, and the influence of subpixel localization on the final accuracy is evaluated. It is shown that the most stable results are achieved with a baseline of 12 mm, at which the average error in determining height differences is approximately ±1.3 mm. The obtained results confirm the fundamental feasibility of the parallax-shift method for television-based inspection of objects with a regular spatial structure.

About the Authors

Pavel Sergeyevich Serdyukov
Southern Federal University
Russian Federation

Postgraduate Student, Institute of Radio Engineering Systems and Control, Southern Federal University, Phone: +7 (918) 894-41-00, Email: serdyukov-pavel@mail.ru ORCID ID 0009-0003-1010-0902



Konstantin Yevgenyevich Rumyantsev
Southern Federal University
Russian Federation

Doctor of Technical Sciences, Professor, Head of the Department of Information Security of Telecommunication Systems, Institute of Computer Technologies and Information Security, Southern Federal University, Russia, Taganrog, Chekhov Street 2, 347928, Phone: +7 (8634) 37-19-02, Email: rke2004@mail.ru



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For citations:


Serdyukov P.S., Rumyantsev K.Ye. Experimental Verification of the Parallax-Shift Method for Determining Height Differences of Fuel Assembly Heads from a Series of Television Images. The Herald of the Siberian State University of Telecommunications and Information Science. 2026;20(3):81-99. (In Russ.) https://doi.org/10.55648/1998-6920-2026-3-20-81-89

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ISSN 1998-6920 (Print)