chapter  4
38 Pages

Vein Pattern Recognition Modality

The human vascular structure is individually distinct and appears to be time invariant. Human blood vessels are formed during the embryo stage* with a variety of differentiating features, rendering each pattern unique, and their patterns remain relatively constant over one’s lifetime. A unique network of veins and arteries exists in every hand and finger of each human being.† However, blood vessels are not exposed, and the intricate network pattern is usually not observable within the visible light wavelength.