Encrypted Sensing Based on Digital Holography for Fingerprint Images

• 作者: Hiroyuki Suzuki Kazuya Nakano Masafumi Takeda Masahiro Yamaguchi
• 来源期刊: 光学与光子学期刊(英文)
• 学科: 工学
• 关键词: BIOMETRIC AUTHENTICATION Digital HOLOGRAPHY Double RANDOM Phase ENCODING Fingerprinting
• 年，卷（期）: 2015,（1）
• 页码范围: 6-14
• 页数: 9页
• 分类号: TP39

摘要

We propose a novel biometric sensing technique for personal authentication in which fingerprint images are captured using an optical encryption method. This method can reduce the risk of data theft or leakage of personal information captured by biometric sensing. This method, termed encrypted sensing, is implemented using digital holography with double random phase encoding. We demonstrate experimentally that a fingerprint image can be captured as an optically encrypted image and can be restored correctly only when the correct cipher key is used. Moreover, we investigate experimentally the verification accuracy of the decrypted images.