Keri Systems BioPointe Users Manual - Manual (Page 17)

Features
16
Multiple Fingerprint Verification
In usual operation, the BioPointe only matches a single fingerprint to successfully pass a verification
process. However, it can be configured to match two or even three fingerprints before a verification
process can be considered as successful.
In such a mode, the user has to enroll this ID with the same number of fingerprints that it is
matching with, or more. For example, if the BioPointe is configured to match two fingerprints, this
ID must be enrolled with at least two fingerprint templates. If it is configured to match three
fingerprints, three fingerprint templates must be enrolled.
During the matching process, the fingerprints that are provided need not be in the order that they
were enrolled.
Note that the three fingerprint templates that were enrolled for a particular ID can come from the
same person, or from up to three different persons. This powerful feature allows the BioPointe to be
deployed in areas of higher security where more than one person is required to authenticate.
Note that for master authentication, only one fingerprint matching is required.
Quick Search
In a usual verification process, the user enters his or her full ID. The BioPointe provides a feature
where you only need to enter a trailing part of your ID to activate a match.
Hence, if your ID is 1234, you only need to press "34" to begin matching, the BioPointe will search
its fingerprint database (in the device) for all the IDs that ends with "34" to find the correct
fingerprint template that matches the live finger. This feature is useful in applications when long
digits are used for the ID.
One-To-Many Search
Another advanced feature to take note of is the one-to-many search capability provided by the
BioPointe. This mode is also known as identification as opposed to verification.
An ID is not required during one-to-many fingerprint matching operation. It works by searching
through the complete fingerprint database to look for the matching fingerprint template. This is an
effective tool to replace the need for remembering IDs.
One-to-many search is operated on a higher level of stringency as compared to verification.
Therefore, the rejection rates will be higher. In addition, searching time increases with the number
of fingerprints registered in the device.