Determining the centroid of a laser spot in the plane of a multimedia shooting gallery sensor based on the methods of interpolation and filtering of the image fragment / Yaremenko, / Krak. (2022)
Ukrainian

English  Cybernetics and Systems Analysis   /     Issue (2022, 58 (4))

Yaremenko S., Krak I.
Determining the centroid of a laser spot in the plane of a multimedia shooting gallery sensor based on the methods of interpolation and filtering of the image fragment

The authors consider the problem of determining the position of the centroid of a laser spot in the plane of the photosensor in a multimedia shooting gallery. A two-stage approach to solving this problem is proposed. The possibilities of increasing the accuracy of determining the centroid by explicitly determining the contours of the spot (2nd stage of processing) instead of determining the boundaries of the laser spot through threshold binarization are investigated. The approaches to determining the contours of the spot are analyzed. To solve the problem, the scale of the image fragment was increased through the interpolation of new points. The possibilities of determining the contour of the spot by processing a fragment of the image with filters of low and high frequencies are investigated. A comparative assessment of the accuracy of the basic algorithm and that of the modified version was carried out, showing that the modified algorithm increases the accuracy of determining the centroid by 30%. Higher accuracy was achieved because the modified method made it possible to find the explicit contours of the spot. © 2022, Springer Science+Business Media, LLC, part of Springer Nature.

Keywords: centroid, contour, digital image filters, laser spot, multimedia shooting range, Image processing, Centroid, Contour, Digital image filters, Image fragments, Laser spots, Multimedium shooting range, Photosensor, Shooting galleries, Shooting ranges, Two-stage approaches, Interpolation


Cite:
Yaremenko S., Krak I. (2022). Determining the centroid of a laser spot in the plane of a multimedia shooting gallery sensor based on the methods of interpolation and filtering of the image fragment. Cybernetics and Systems Analysis, 58 (4), 3–11. doi: https://doi.org/10.1007/s10559-022-00483-w http://jnas.nbuv.gov.ua/article/UJRN-0001335514 [In Ukrainian].


 

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