Resumen de Fluorescence of a Natural Fluorophore as a Key to Improve Fingerprint Contrast Image
Ana Celeste Ximenes Oliveira, Alexandre Leão, Karla Balzuweit, Livia Siman, Oscar Nassif Mesquita, Luiz Orlando Ladeira, Luiz Alberto Cury
The optical and morphological properties of resveratrol were investigated. This nontoxic fluorescent natural material, emitting in the visible blue light, was used as an optical marker, enabling the enhancement of the image contrast coming from relief pictures marked on challenging surfaces. By applying appropriated imaging softwares, this marker was verified to be very useful in the latent fingerprint recognition deposited on different wood surface types, mainly those with high level of roughness, where conventional forensic materials do not allow effective fingerprint image visualization
