Enrollment Process

One-touch, high quality finger template registration


Key requirements

In quality critical applications, targeting high security and convenience for close to 100% of the segment users, the initial enrollment must be of very high quality. Correct images of a large part of at least two fingers is mandatory.

If the print template stored as the reference for later use is not large and perfect, it will not have the necessary buffers for real life issues like skewed placements, cut, dry, wet, dirty or worn fingers.

When World leading smartphone manufacturers ship 500 million phones it is of no consequence if 100 million people are not able or willing to do the enrollment process properly. If Governments or leading payment card schemes distribute 500 million cards, they must offer an enrollment process that realistically can serve 99% + of the citizens/end users.

Organisation of enrollment

In most quality critical applications, including Government ID, Financial Inclusion payments and Corporate Access, enrollment will take place in manned enrollment centres/offices, providing user guidance and use of a large sized quality sensors (NEXT size, 201 mm² or larger). In such applications it is both practically and financially possible to enroll all users in this way.

In Retail Banking (a convenience focused consumer market application) the enrollment will have to be organized in a user convenient way. In this segment a large percentage of the end users will not be willing to spend time going to a bank affiliate to enroll their fingers. Additionally organising such a service will in most countries be far to expensive. The only realistic ways to get to critical mass and quality of the enrollment process is to ship a low cost card reader with the card and/or to offer a fast-track enrollment during the users first visit to a store. The latter solution requires that the process can be done in fast and intuitive one touch per finger process.

High quality enrollment
All Quality Critical applications require large and correct enrollments
Enrollment Centres
60-75% of biometric smart card enrollments will take place in enrollment centres

NEXT Biometrics presents:

The NEXT enrollment
- a one-touch operation covering a dominant part of the finger. Enrollment of the mandatory minimum two fingers can be done in 3-4 seconds.

Quality of enrollment

A high quality enrollment process using a large sized sensor allows the system to capture the entire print in one touch and to set high enrollment thresholds – creating buffers for real life situations like skewed finger placement, cut, worn, wet, and dry fingers.

All scientific references (including the Madrid tests, the Aadhaar tests and real life quality application implementations) are based on enrollments done with large high-quality sensor systems.

In quality critical applications, the method of «stitching», used in small sensor based smartphones is not applicable. Opposite of what is the case for smartphones, a quality critical application is dependent of close to 100% of the users being able to perform the enrollment perfectly. The method of stitching requires the users being able to present small sections of the finger, one by one in a way that eventually covers a main part of the finger. In real life a significant part of the users are not able to do this correctly. Addtionally smart cards and tokens does not offer displays to guide the users through the process. Not do they posess anywhere close to the computing resources of a smartphone to handle this process.

Enrollment per application

ApplicationRequired enrollment execution
Quality Critical applications:
Cards – Financial InclusionIn centres. Large sensors only. Database w checks for duplicates etc..
Cards – Government IDIn centres. Large sensors only. Database w check for duplicates etc..
Cards – Corporate AccessIn centres. Large sensors only. Database w rights management etc..
Cards – Retail bankingAt home or in stores using card readers. Large sensor, no stitching req.
Government IIn centres. Large sensors only. Database w checks for duplicates etc..
Government ID – IndiaIn centres. Large sensors only. Database w check for duplicates etc..
Access Control – DevicesAt home or office using device sensor. Large sensor required.
Non-critical applications:
Notebooks – CommercialWherever, using notebook sensor. Stitching, when sensors are small
Notebooks – ConsumersWherever, using notebook sensor. Stitching, when sensors are small
SmartphonesWherever, using phone sensor. Stitching, when sensors are small


Smartphone enrollment
The process of multiple finger placements (stitching) is not applicable in Quality Critical Applications
Retail Banking
Demands convenient and cost effiecient, high quality enrollment