How the finger print sensor trace and match the finger print and how the algorithm of finger print scanner is worked??

Question

i have to made a working model in which i have to use finger print scanner to scan and a sensor to sense that expression of finger print but i have a query that how it works and how its implement and match the expreesion of finger print
thanksin advance

Answer 1

During enrollment or verification, each print is analyzed for very specific features called minutiae, where the lines in your fingerprint terminate or split in two. The computer measures the distances and angles between these features—a bit like drawing lines between them—and then uses an algorithm (mathematical process) to turn this information into a unique numeric code. Comparing fingerprints is then simply a matter of comparing their unique codes. If the codes match, the prints match, and the person gains access.

About the algorithm, here it is a website with the description http://biometrics.mainguet.org/types/fingerprint/fingerprint_algo.htm