Objective color classification of ecstasy tablets by hyperspectral imaging
| العنوان: | Objective color classification of ecstasy tablets by hyperspectral imaging |
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| المؤلفون: | Maurice C. G. Aalders, Martin Lopatka, Gerda J. Edelman |
| المساهمون: | Other departments, Other Research, Biomedical Engineering and Physics |
| المصدر: | Journal of forensic sciences, 58(4), 881-886. Wiley-Blackwell |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | genetic structures, business.industry, Ecstasy, Analytical chemistry, Hyperspectral imaging, Pattern recognition, Kubelka munk, Reflectivity, Pathology and Forensic Medicine, Photon propagation, Reference measurement, Genetics, Color measurement, Artificial intelligence, business, Mathematics |
| الوصف: | The general procedure followed in the examination of ecstasy tablets for profiling purposes includes a color description, which depends highly on the observers' perception. This study aims to provide objective quantitative color information using visible hyperspectral imaging. Both self-manufactured and illicit tablets, created with different amounts of known colorants were analyzed. We derived reflectance spectra from hyperspectral images of these tablets, and successfully determined the most likely colorant used in the production of all self-manufactured tablets and four of five illicit tablets studied. Upon classification, the concentration of the colorant was estimated using a photon propagation model and a single reference measurement of a tablet of known concentration. The estimated concentrations showed a high correlation with the actual values (R(2) = 0.9374). The achieved color information, combined with other physical and chemical characteristics, can provide a powerful tool for the comparison of tablet seizures, which may reveal their origin. |
| تدمد: | 1556-4029 0022-1198 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e89515c3f79e5e50d420d27a02b5174e https://pubmed.ncbi.nlm.nih.gov/23683098 |
| Rights: | RESTRICTED |
| رقم الانضمام: | edsair.doi.dedup.....e89515c3f79e5e50d420d27a02b5174e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15564029 00221198 |
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