This document introduces hand vascular pattern recognition biometrics. It summarizes the VP-II system which uses infrared light to analyze vascular patterns in the back of the hand for identity verification. The system provides high usability of 99.98%, fast verification speed of 0.4 seconds per person, and low false acceptance and rejection rates of 0.0001% and 0.1%, respectively. It also stores biometric data using international standards for encryption and formatting.

1. Introduction to Techsphere Hand V ascular P attern R ecognition

3. VP-ll System 02 1. Best usability -VP-II technology provides ultimate system Usability of 99.98% -Verification Speed: 0.4sec/person 2. Robustness to Forgery -Vascular pattern does not leave residual pattern as it is the only feature which is located inside of human body. 3. Psychological acceptance -Out of a poll of more than a thousand users who have experienced multiple biometric technologies, VP-II system has been chosen as psychologically the most well accepted system. 4. Robustness to inferior environment -VP-II system demonstrates its great tolerance in harsh environment, such as construction sites, army, factories, etc.

4. 03 Algorithm * ISO/IEC 19794-9 (Published in 2007) Information technology: Biometric data interchange formats – Part 9: Vascular image data VP-II system obtains the vascular pattern image as the highest quality applying HVPE (Hand Vascular Pattern Emphasizing) algorithm for compensating the weak vascular vessel images and enhancing the pattern recognition performance. Process for extracting vascular pattern information Vascular Pattern Encryption and Storing VP-II encrypt the features by AES algorithm and store with ISO 19794-9 CBEFF international standards. Back-of-hand Raw image Enhanced vascular pattern Feature Points

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