Presentation 2016-06-16
A generation scheme of random unitary matrices for template protection
Yuko Saito, Sayaka Shiota, Hitoshi Kiya,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Random unitary matrices-based template protection methods have been proposed as one of biometric template protection schemes. In the prior studies, a template is protected by two matrices, i.e, an unitary matrix with fixed values and one with random values. These methods have lower calculation costs than these of the Gram-Schmidt orthogonalization, and can also generate integer protected templates. However, these methods have been pointed out that the cross matching performance and the randomness of a protected template depend on the combination of random unitary matrices. In this study,to overcome these problems, we propose a new generation method of a random unitary matrix. In the proposed method, a template is protected by three matrices, i.e, an unitary matrix with fixed values and two unitary matrix with random values. In addition, we propose to use a permutation matrix having plus or minus sign in a random order as a random matrix. We perform some face recognition experiments to evaluate the cross matching performance and the randomness of a protected template and show the effectiveness of the proposed scheme.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Biometrics / Template protection / random unitary matrices
Paper # CAS2016-14,VLD2016-20,SIP2016-48,MSS2016-14
Date of Issue 2016-06-09 (CAS, VLD, SIP, MSS)

Conference Information
Committee VLD / CAS / MSS / SIP
Conference Date 2016/6/16(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Hirosaki Shiritsu Kanko-kan
Topics (in Japanese) (See Japanese page)
Topics (in English) System, signal processing and related topics
Chair Takashi Takenana(NEC) / Toshihiko Takahashi(Niigata Univ.) / Satoshi Yamane(Kanazawa Univ.) / Makoto Nakashizuka(Chiba Inst. of Tech.)
Vice Chair Hiroyuki Ochi(Ritsumeikan Univ.) / Mitsuru Hiraki(Renesas) / Morikazu Nakamura(Univ. of Ryukyus) / Masahiro Okuda(Univ. of Kitakyushu) / Shogo Muramatsu(Niigata Univ.)
Secretary Hiroyuki Ochi(Fujitsu Labs.) / Mitsuru Hiraki(Hiroshima City Univ.) / Morikazu Nakamura(Tohoku Univ.) / Masahiro Okuda(Renesas) / Shogo Muramatsu(Yamaguchi Univ.)
Assistant Parizy Matthieu(Fujitsu Labs.) / Toshihiro Tachibana(Shonan Inst. of Tech.) / Yohei Nakamura(Hitachi) / Hideki Kinjo(Okinawa Univ.) / Osamu Watanabe(Takushoku Univ.)

Paper Information
Registration To Technical Committee on VLSI Design Technologies / Technical Committee on Circuits and Systems / Technical Committee on Mathematical Systems Science and its applications / Technical Committee on Signal Processing
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A generation scheme of random unitary matrices for template protection
Sub Title (in English)
Keyword(1) Biometrics
Keyword(2) Template protection
Keyword(3) random unitary matrices
1st Author's Name Yuko Saito
1st Author's Affiliation Tokyo Metropolitan University(Tokyo Metropolitan Univ.)
2nd Author's Name Sayaka Shiota
2nd Author's Affiliation Tokyo Metropolitan University(Tokyo Metropolitan Univ.)
3rd Author's Name Hitoshi Kiya
3rd Author's Affiliation Tokyo Metropolitan University(Tokyo Metropolitan Univ.)
Date 2016-06-16
Paper # CAS2016-14,VLD2016-20,SIP2016-48,MSS2016-14
Volume (vol) vol.116
Number (no) CAS-93,VLD-94,SIP-95,MSS-96
Page pp.pp.73-78(CAS), pp.73-78(VLD), pp.73-78(SIP), pp.73-78(MSS),
#Pages 6
Date of Issue 2016-06-09 (CAS, VLD, SIP, MSS)