A new methodology for detection of counterfeit Viagra (R) and Cialis (R) tablets by image processing and statistical analysis

作者：Jung Claudio R^*; Ortiz Rafael S; Limberger Renata; Mayorga Paulo

来源：Forensic Science International, 2012, 216(1-3): 92-96.

DOI：10.1016/j.forsciint.2011.09.002

• Counterfeit medicine detection
• Image processing
• Pattern recognition

This paper proposes a new approach for automatic classification of counterfeit Viagra (R) and Cialis (R) tablets using image processing and statistical analysis. A high resolution VSC 5000 is used for image acquisition in a controlled environment, and the combination of a thresholding technique with morphological operators is used to segment the tablet from the background. A statistical model based on the RGB color components of original samples is built, and the detection of counterfeit tablets was performed by checking the adherence of a test sample to the obtained distribution using the Bhattacharyya distance. Our experimental results indicated that counterfeit tablets can be effective detected using the proposed approach.

• 出版日期2012-3-10