Evaluation on palm vein recognition of children in growing

This document reports the investigation result of chronological changes effect in the vein information of growing children between the ages of 4 to 14 who were followed up for up to 12 years. The author studied changes in vein patterns in 20 subjects who were able to observe their veins annually for 12 years and more than five years throughout 12. Hand size was measured as an index of growth and compared the images of the vein patterns on an annual basis. Comparing results of the annual vein pattern images showed that the vein pattern during the growth process gradually changes, and the amount of observable vein information increases. However, the structure of the basic vein pattern remains the same.