It has been observed that simple thresholding of the green channel of the acquired RGB UV-based image is sufficient for segmenting Scorpion from other background components in the acquired image. The extracted channels are then segmented into two non-overlapping classes. The acquired UV-based images undergo pre-processing to equalize uneven illumination and colour space channel separation.
This paper proposed a digital image processing approach based on the floresencing characteristics of Scorpion under Ultraviolet (UV) light for automatic detection and identification of scorpion. Despite the high rate of death as a result of scorpion sting, little report exists in literature of intelligent device and system for automatic detection of scorpion. Since the coloration of the exoskeleton is determined by the concentration of melanin and other pigments according to the substrate where scorpions live on, we conclude by suggesting that fluorescence may correlate directly to the ecomorphotype of the scorpions.ĭeath as a result of scorpion sting has been a major public health problem in developing countries. However, the fluorescence intensity emitted by each species varies according to their characteristic color (associated with the exoskeleton optical reflectance).
The spectrum of fluorescence across species is practically identical, suggesting that the same fluorophores are present in their exoskeletons. Our results suggest that the intensity of fluorescence is heterogeneous throughout the scorpion's exoskeleton studied here in such a way that pedipalps and metasomal segments fluoresce more intensely than the mesosomal segments. With the aim of identifying possible correlations between the fluorescence, the characteristics color of the exoskeleton and the biology of the scorpions, 4 families, 9 genera and 24 species were studied. In this work, the properties of emission from the scorpion's exoskeleton are studied by means of digitally processed photographs taken of living specimens under ultraviolet illumination and complemented with standard spectroscopic measurements of emission and excitation spectra. Although there are some reports in the literature on the study of fluorescence in scorpions, the biological functionality of this light emission is currently unknown and is under debate. Different species of scorpions have divergent adaptations to the substrate they live in, but most of them share an intriguing characteristic: their exoskeleton contains fluorophores that emit blue-greenish fluorescence under ultraviolet radiation. Scorpions are a mesodiverse and nocturnal group of arachnids inhabiting most biomes worldwide.