An Adaptive Fingerprint-Sensing Scheme for a User Authentication System with a Fingerprint Sensor LSI(Integrated Electronics)
スポンサーリンク
概要
- 論文の詳細を見る
This paper describes an adaptive fingerprint-sensing scheme for a user authentication system with a fingerprint sensor LSI to obtain high-quality fingerprint images suitable for identification. The scheme is based on novel evaluation indexes of fingerprint-image quality and adjustable analog-to-digital (A/D) conversion. The scheme adjusts dynamically an A/D conversion range of the fingerprint sensor LSI while evaluating the image quality during real-time fingerprint-sensing operation. The evaluation indexes pertain to the contrast and the ridgelines of a fingerprint image. The A/D conversion range is adjusted by changing quantization resolution and offset. We developed a fingerprint sensor LSI and a user authentication system to evaluate the adaptive fingerprint-sensing scheme. The scheme obtained a fingerprint image suitable for identification and the system achieved an accurate identification rate with 0.36% of the false rejection rate (FRR) at 0.075% of the false acceptance rate (FAR). This confirms that the scheme is very effective in achieving accurate identification.
- 社団法人電子情報通信学会の論文
- 2004-05-01
著者
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Yamaguchi Chikara
Ntt Microsystem Integration Laboratories
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Shigematsu Satoshi
Ntt Microsystem Integration Lab. Kanagawa Jpn
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SHIMAMURA Toshishige
NTT Microsystem Integration Laboratories
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MACHIDA Katsuyuki
NTT Microsystem Integration Laboratories
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MORIMURA Hiroki
NTT Microsystem Integration Laboratories
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FUJII Koji
NTT Microsystem Integration Laboratories
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SUTO Hiroki
NTT Microsystem Integration Laboratories
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OKAZAKI Yukio
NTT Microsystem Integration Laboratories
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KYURAGI Hakaru
NTT Microsystem Integration Laboratories
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MACHIDA Katsuyuki
NTT Advanced Technology Corporation
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Fujii K
Ntt Microsystem Integration Laboratories Ntt Corporation
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Okazaki Yukio
Ntt Microsystem Integration Laboratories Ntt Corporation
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Kyuragi H
Ntt Microsystem Integration Laboratories Ntt Corporation
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Morimura Hiroki
Ntt Microsystem Integration Laboratories Ntt Corporation
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Machida K
Ntt Advanced Technology Corporation
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Shimamura Toshishige
Ntt Microsystem Integration Laboratories Ntt Corp.
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