Identification of Human Body Fluid Stains and Non-Biological Stains by Three-Dimensional Fluorescence Spectroscopy.
Fa Yi Xue Za Zhi
; 39(1): 40-44, 2023 Feb 25.
Article
em En, Zh
| MEDLINE
| ID: mdl-37038854
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.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Líquidos Corporais
/
Medicina Legal
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
En
/
Zh
Revista:
Fa Yi Xue Za Zhi
Assunto da revista:
JURISPRUDENCIA
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
China