A Novel Fingerprint Match Method Based on Minutia Triangular Acreage Technology

Recognizing fingerprints in poor quality images, direction changed, size different fingerprints and so forth is still a very complex job. To overcome these drawbacks, a fingerprint match method used minutiae-based triangular acreage is described here to improve matching accuracy. With the development of automatic machines, self-service, bank cards and internet shopping, the demand to identify people uniquely, safely and quickly is becoming the basic factor during social life experiences. The traditional methods, such as passwords and cards, cannot be trusted to establish a person's identity due to passwords or PIN can be calculated by hacker's interruption and cards can be stolen, lost or easily duplicated. In these cases, biometric recognition becomes the most attractable solution to above problems. Biometric traits, e.g., fingerprints, face, iris, ear, can provide unique characters of one person and cannot be easily stolen or shared compared with traditional security methods (such as key and password) (1). Due to their better security, convenience and easily recognized with the help of modern technology, they are deployed in a large amount in our daily life and are playing more and more important role in various security applications. Biometric is accepted as an essential component of effective person identification solutions because biometric identifiers intrinsically represent the individual's identity. Among these biometric traits, fingerprint has an overall desirable property when compares with others, such as easily accessible, permanent unchangeable and good recognition accuracy, and is becoming the most popular biometric trait. Fingerprints have been used for identifying individual from the ancient time. Historically, fingerprint recognition systems were mostly used in forensic sciences, and due to their strongpoint, such as uniqueness and permanence, fingerprint is among the most widely used biometric traits with a broad range of both government and civilian applications at present. In other words, fingerprints are a sort of identity card that people carry with them continuously. The current popularity of these systems is mainly focused on civilian applications such as building access systems,