Optical system for enhancing the precision of geometric parameter estimation for objects utilizing defocused images

Yosyp Bilynsky; Stepan Zhivotivskyi; Alexander Nikolsky; Dmytro Baranovskyi; Olena Tsikhanovska; Orken Mamyrbayev; Róża Dzierżak; Aizat Kydyrbekova

doi:10.1117/12.3023051

20 December 2023 Optical system for enhancing the precision of geometric parameter estimation for objects utilizing defocused images

Yosyp Bilynsky, Stepan Zhivotivskyi, Alexander Nikolsky, Dmytro Baranovskyi, Olena Tsikhanovska, Orken Mamyrbayev, Róża Dzierżak, Aizat Kydyrbekova

Author Affiliations +

Proceedings Volume 12985, Optical Fibers and Their Applications 2023; 129850B (2023) https://doi.org/10.1117/12.3023051
Event: Optical Fibers and Their Applications 2023, 2023, Lublin, Poland

Abstract

Today, optical systems of subpixel measurements of geometric dimensions of objects, as well as 3D triangulation measurement systems, have gained wide application. This capability is achieved under the condition of obtaining sharp images of the investigated object. However, challenges arise when the object's image or a specific part of it becomes blurred or defocused, as some of its features lie outside the focal plane. The use of defocused images leads to significant measurement errors during their computer processing. The paper introduces a method based on the use of two defocused images of the research object. Through advanced computer processing, this approach enables obtaining a sharp image, extracting its contour, and acquiring its geometric parameters with subpixel precision.

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Yosyp Bilynsky, Stepan Zhivotivskyi, Alexander Nikolsky, Dmytro Baranovskyi, Olena Tsikhanovska, Orken Mamyrbayev, Róża Dzierżak, and Aizat Kydyrbekova "Optical system for enhancing the precision of geometric parameter estimation for objects utilizing defocused images", Proc. SPIE 12985, Optical Fibers and Their Applications 2023, 129850B (20 December 2023); https://doi.org/10.1117/12.3023051

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