study of lip prints data

ABSTRACT

This work was performed on 480 lip prints from 60 different lips of 30volunteers. These lip prints were divided into four groups In groups I andII, the prints were recorded by using slight and moderate pressure of thelips, respectively, and in groups III and IV, the prints were recorded afterone month from recording groups I and II also by using slight and moderatepressure of the lips, respectively. After examining the lip prints andcomparing them with each other, the study concluded that slight pressureof the lip during recording is the best method for obtaining a lip printrecord used for comparison. Lip prints did not change after one month. The proposed method of lip prints identification depends on threefactors [primary lines, secondary lines and the distance between two knownfixed patients]