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Identification of Human Body Fluid Stains and Non-Biological Stains by Three-Dimensional Fluorescence Spectroscopy / 法医学杂志
Journal of Forensic Medicine ; (6): 40-44, 2023.
Artículo en Inglés | WPRIM | ID: wpr-984178
ABSTRACT
OBJECTIVES@#To establish a rapid and nondestructive identification method for human body fluid stains and non-biological stains using three-dimensional fluorescence spectroscopy.@*METHODS@#The collected three-dimensional fluorescence spectrum data of human saliva, 3% blood, coffee and Fanta® stains were processed with dimensionality reduction. After wavelet transform, spectral denoising and feature extraction, the classification formula was established. The Fisher discriminant was used for spectrum matching and recognition to establish the analysis method to distinguish stain types.@*RESULTS@#According to the results of data training and comparison, all the recognition accuracies of Fanta®, coffee, saliva and blood were more than 91.39%. Among them, saliva reached 100% recognition accuracy.@*CONCLUSIONS@#Three-dimensional fluorescence spectroscopy is a potential method for rapid and nondestructive identification of biological and non-biological stains.
Asunto(s)

Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Espectrometría de Fluorescencia / Líquidos Corporales / Café / Colorantes / Medicina Legal Límite: Humanos Idioma: Inglés Revista: Journal of Forensic Medicine Año: 2023 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Espectrometría de Fluorescencia / Líquidos Corporales / Café / Colorantes / Medicina Legal Límite: Humanos Idioma: Inglés Revista: Journal of Forensic Medicine Año: 2023 Tipo del documento: Artículo