Mineral mapping system development: Improved accuracy of actual sizing of mineral spots on core surface

The article analyzes minimization of influences of factors that impair evaluation accuracy of mineral location on core sample surface in video camera recording. For reaching minimal disagreement between the actual area of a mineral spot on the core sample surface and the same spot area in the video camera image, a program module is designed to implement calibration. Calibration is carried out using a special calibration object placed in the video camera view, and the correction factors are determined for each area in the user-created Map and Images. The data of the program testing on a luminescence simulator prove the high measurement accuracy of the area of a mineral spot in any field of a recorded image. The deviation of the luminescence area of a light-emitting diode arranged in different areas of the Map of Image from the reference value (luminescence area of LED placed at the intersection of principal diagonals of the image) is never higher than 0.5%.

Voronin R. P., Shibaeva D. N., Bulatov V. V., Asanovich D. A. Mineral mapping system development: Improved accuracy of actual sizing of mineral spots on core surface. MIAB. Mining Inf. Anal. Bull. 2024;(10):92-107. [In Russ]. DOI: 10.25018/0236_1493_2024_10_0_92.

The study was supported by the Russian Science Foundation, Project No. 22-27-20153.

R.P. Voronin^1,2, Student; Programmer, e-mail: rom.voron@bk.ru, ORCID ID: 0000-0002-3974-0140,
D.N. Shibaeva^1,2, Cand. Sci. (Eng.), Head of Laboratory; Leading Researcher, Head of Laboratory, e-mail: shibaeva_goi@mail.ru, ORCID ID: 0000-0002-3974-0140,
V.V. Bulatov², Leading Engineer, e-mail: podrivnik@inbox.ru, ORCID ID: 0000-0003-0818-883Х,
D.A.Asanovich², Leading Engineer, e-mail: asanovichdnja1@mail.ru, ORCID ID: 0000-0001-8480-6009,
¹ Branch of the Murmansk Arctic University in Apatity, 184209, Apatity, Russia,
² Mining Institute — Subdivision of the Federal Research Centre «Kola Science Centre of the Russia Academy of Sceince», 184209, Apatity, Russia.

D.N. Shibaeva, e-mail: shibaeva_goi@mail.ru.

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