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Ridgeology: The study of the uniqueness of friction ridge structures and their use for personal identification.1 1Introduction to Basic Ridgeology by David Ashbaugh, May 1999 Image from http://www.cs.usyd.edu.au/~irena/minutia.gif
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Fingerprint Identification
When minutiae on two different prints match, these are called points of similarity or points of identification. At this point there is no international standard for the number of points of identification required for a match between two fingerprints. However, the United Kingdom requires a minimum sixteen points while Australia requires twelve.
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Ridge Characteristics Use these characteristics as points of identification when comparing fingerprint samples. The more points you can find in common, the better the match!
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http://cnx.org/content/m12574/latest/properties.jpg Ridge Characteristics EXAMPLE
Parts of the human skin :
Parts of the human skin Epidermis: outer portion of the skin near the surface
Dermal Papillae: part of the skin that determines your unique fingerprint pattern
Dermis: inner skin
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How many ridge characteristics can you identify in this fingerprint?
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Analyze the fingerprints on your “My Prints” worksheet to see how many ridge characteristics you can find. Try It!