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JAIT 2025 Vol.16(9): 1338-1351
doi: 10.12720/jait.16.9.1338-1351

AI for Medical Informatics: The Application of Optical Character Recognition Technology in the Transcription of Pharmaceutical Labels

Wongpanya S. Nuankaew 1, Fapratan Jailangka 1, Atthakit Khampraphai 1, Apatsara Kamka 1,
Patchara Nasa-Ngium 2, and Pratya Nuankaew 3,*
1. Department of Computer Science, School of Information and Communication Technology, University of Phayao, Phayao, Thailand
2. Department of Computer Science, Faculty of Science and Technology, Rajabhat Maha Sarakham University, Maha Sarakham, Thailand
3. Department of Digital Business, School of Information and Communication Technology, University of Phayao, Phayao, Thailand
Email: wongpanya.nu@up.ac.th (W.S.N.); 65024580@up.ac.th (F.J.); 65021251@up.ac.th (A.K.); 65021239@up.ac.th (A.K.); patchara@cs.rmu.ac.th (P.N-N.); pratya.nu@up.ac.th (P.N.)
*Corresponding author

Manuscript received February 24, 2025; revised June 9, 2025, accepted July 10, 2025; published September 19, 2025.

Abstract—The growing elderly population in Thailand faces challenges in managing medications, particularly due to vision impairments affecting adherence. This research introduces a novel approach using Optical Character Recognition (OCR) integrated into a mobile platform to automate the extraction of pharmaceutical label information. The system operates in four phases: image capture, quality enhancement, text extraction, and data processing. Text extraction employs advanced techniques such as medication verification via fuzzy matching with Levenshtein distance, dosage instruction using regular expressions, frequency confirmation through dictionary matching, and medical indications with named entity recognition. The system achieved an overall accuracy of 98.67%. The application significantly enhances medication safety for visually impaired elderly users, with positive satisfaction reported for medication entry, scanning, and reminders.
 
Keywords—applied medical informatics, pharmaceutical label data processing, pharmaceutical label transcription, Optical Character Recognition (OCR)

Cite: Wongpanya S. Nuankaew, Fapratan Jailangka, Atthakit Khampraphai, Apatsara Kamka, Patchara Nasa-Ngium, and Pratya Nuankaew, "AI for Medical Informatics: The Application of Optical Character Recognition Technology in the Transcription of Pharmaceutical Labels," Journal of Advances in Information Technology, Vol. 16, No. 9, pp. 1338-1351, 2025. doi: 10.12720/jait.16.9.1338-1351

Copyright © 2025 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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