J.-C. Yang and H.-S. Kim (Korea)
Facet function, Palm lines, Representative point.
One of the preferred parts of human body for identification purpose is the palm. Specially, the palm lines are good mark to discriminate individuals. In this paper, a method is introduced to utilize the palm lines for a digital identification of a palm. A representative point is selected for each segment of palm lines and gradient values are computed in the region around the representative point. The gradient values indicate the geometrical shape, the palm lines and the curvature property of palm surface. A two-dimensional facet function of second order is used to calculate the gradients. The computed gradient values form a feature vector for the identification procedure.
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