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Hand vein recognition is one of the most widely used methods for authentication. However, since the restriction of fixed hand posture and the loss of vein's depth message in traditional 2D vein recognition will cause a higher false rejection rate (FRR), many researchers have focused on the 3D hand vein recognition. For vein recognition, the knowledge of the vascular tree's topology and symbolic description...
Venipuncture is now a common medical means. Several devices have been developed to aid the paramedics or physicians in locating the vein. There are two problems existing in vein display devices: (1) The vein cannot be shown directly on the skin; (2) The method of displaying the vein on the skin is complex. An approach based on the camera-projector system is proposed to help the paramedics or physicians...
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