Orientation flow field is the starting point for feature extraction in various fingerprint algorithms. In recent papers, Jain and his colleagues (Ratha et al., 1995, Karu and Jain, 1995, Ratha et al. 1996) introduced a fundamentally new algorithm. Their main motivation for the algorithm has been to work at the problems from a fingerprint matching point of view. Our aim in contrast has been feat...

Climate change leading to global warming affects the earth through many different ways such as weather (temperature, precipitation, humidity and the other parameters of weather), snow coverage and ice melting, sea level rise, hydrological cycles, quality of water, agriculture, forests, ecosystems and health. One of the most affected areas by climate change is hydrology and water resources. Regi...

background: the goal of the present work was to determine frequencies of different finger patterns of a population in hamadan (one of the western cities of iran) in 1997. methods: in a cross-sectional study, the .prints of the first phalanx of both hands of 717 randomly selected hamadan students (i88 men, 529 women) have taken, by using standard method (stamp ink). the fingerprints were classif...

background: dermatoglyphics are the dermal ridge configurations on the digits, palms and soles. dermatoglyphic polymorphism results from the co-operation of genetic and environmental factors. the dermatoglyphic analysis is a valuable completion of initial diagnosis of some syndromes genetically determined. our objective was to assess dermatoglyphics study results against standard chromosomal an...

In this study the restriction endonuclease analysis (REA) technique was used for the comparison of field isolates and vaccinal strain of Pasteurella multocida using Hha-I enzyme. On the basis of DNA finger prints, extent of homology among the field isolates and the vaccinal strain was observed. The study has provided the clear evidence that eight isolates of P. multocida used were serologically...

A novel method of gender Classification from fingerprint is proposed based on discrete wavelet transform (DWT) and singular value decomposition (SVD). The classification is achieved by extracting the energy computed from all the sub-bands of DWT combined with the spatial features of non-zero singular values obtained from the SVD of fingerprint images. K nearest neighbor (KNN) used as a classifi...