Dychka, IvanSulema, Olga2021-07-202021-07-202019Dychka, I., & Sulema, O. (2019). Black-Gray-White Barcode Based on Error Correction Data Encoding. Journal of Applied Computer Science, 27(2), 17-38. https://doi.org/10.34658/jack.2019.27.2.17-381507-0360http://hdl.handle.net/11652/3904https://doi.org/10.34658/jack.2019.27.2.17-38The paper presents an approach based on using barcodes with three color gradations (white, gray, and black) instead of traditional black and white barcodes. Such three-color barcodes can be produced and read by using the same equipment as usual black and white barcodes, but due to the third color they have a higher information density.It is shown in the paper that in order to ensure high reliability and accuracy of barcoded information reading, it is necessary to encode the data with a Reed-Solomon correction code which is capable of correcting multiple errors.The method of data encoding and decoding in the Galois field GF(3m), where m is the degree of an irreducible polynomial, is proposed. The noise immunity of the black-gray-white barcode capable of multiple errors correction based on Reed-Solomon code is analyzed and discussed as well.enFair use conditionDla wszystkich w zakresie dozwolonego użytkubarcodingmulticolored barcodesGalois fieldsnoise immunityerror correctionkod kreskowywielokolorowe kody kreskowepole Galoisodporność na zakłóceniakorekcja błędówArtykułLUT LicenseLicencja PŁhttps://doi.org/10.34658/jack.2019.27.2.17-3810.34658/jack.2019.27.2.17-38