Force Based Auto Capture for 10-Print Fingerprint Sensor
Written by Shimon // September 29, 2008 // Community Outreach, Fingerprint, HBSI, Image Quality, Law Enforcement, Research Discussion, Standards // Comments Off
In a fingerprint recognition system, the quality of an acquired image has the most significant effect on a systems recognition performance. Inconsistent and non-uniform contacts are significant causes of poor image quality. Although researchers have developed software algorithms to mitigate low quality acquisitions, not enough focus has been placed on studying the root causes of low image quality to improve recognition performance. One significant variable that impacts the quality of contact between a finger and scanner platen is applied force. This area examines the specific variable of finger force and the impact it has on image quality for ten print device.
The impact of applied force on image quality, minutia and recognition performance has not been thoroughly studied 10-print scanners. Current force studies have shown conflicting conclusions between single and 10-print fingerprint scanners. Automated acquisition based on researched optimal force levels has yet to be studied. This area of research will attempt to fill the existing gaps in knowledge.
This study aims to answer the following questions:
Which force level on a 10-print scanner produces the highest image quality and greatest recognition performance at 0.1% FAR?
Which force level produces the greatest subject comfort during interaction?