Fujitsu do Brasil is using a biometric security solution featuring a compact, high-performance sensor that scans palm vein patterns to verify user identity in bank ATM transactions. The technology, dubbed PalmSecure, is being tested internally at Banco Bradesco, the largest private bank in Latin America, with general operation scheduled to start soon.
PalmSecure is the world’s first palm vein-based biometric authentication system. Palm vein authentication uses the vascular pattern of an individual’s palm for personal identification. The contactless technology is hygienic, non-invasive, and has a high level of accuracy.
The palm vein pattern is scanned by reflection photography using an infrared ray. The reflection method illuminates the palm using with infrared light and captures the light given off after diffusion through the palm. The vein pattern is captured as a series of dark lines as the deoxidised haemoglobin contained in the vein vessels absorbs the infrared light.
After the sensor captures the palm vein pattern of the user, it is compared with pre-registered data to authenticate the user’s identity. The sensor is compact, measuring 35mm by 35mm, and could used in a wide range of applications, such as in PCs, ATMs and for building and room access.
According to Fujitsu research, vein patterns are unique, even among identical twins. Palm veins are also less susceptible to cold temperatures than veins in other parts of the hand, and can recover more quickly when exposed to cold climates.
Palms have a broad and complicated vascular pattern and contain a wealth of differentiating features for personal identification. Based upon a study by Fujitsu of 140,000 vein patterns, the False Rejection Rate (FRR) is 0.01 per cent and the False Acceptance Rate (FAR) is less than 0.00008 per cent.