UDC 004.932
ALGORITHM FOR SIMULTANEOUS LOCALIZATION OF MULTIPLE DATAMATRIX CODES ON IMAGE
Y. R. Muratov, Ph.D. (Tech.), associate professor, department of electronic computers, RSREU, Ryazan, Russia; orcid.org/0000-0002-1664-3954, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
A. I. Efimov, Ph.D. (Tech.), associate professor, department of electronic computers, RSREU, Ryazan, Russia; orcid.org/0000-0002-4014-8718, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
A. S. Yepifanov, post-graduate student, RSREU, Ryazan, Russia;
orcid.org/0009-0002-4689-7506, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
This paper proposes an algorithm for localizing multiple two-dimensional barcodes of DataMatrix or QR type in an image with low computational complexity. A distinctive feature of the algorithm is high localization accuracy due to the use of built-in classifier, which is based on data about potential areas of interest. For each area of interest, the classifier takes into account its dimensions, proportions, and the density of filling the entire area of two-dimensional barcode with black pixels. The algorithm was designed based on the need to optimize calculations on industrial bar code scanners that have limited performance. For the proposed algorithm, a comparative analysis was carried out with existing algorithms to localize two-dimensional barcodes based on two-dimensional Gaussian, tree classifier and classifier with Haar features, highlighting the quality metric expressed as a percentage of recognized codes.
Key words: : binarization, localization, bar codes, DataMatrix codes, QR codes, classifier, classifier with Haar features, classifier with boundary features, tree classifier.