Orientation Field Estimation for Embedded Fingerprint Authentication System
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概要
- 論文の詳細を見る
Orientation field (OF) estimation is a fundamental process in fingerprint authentication systems. In this paper, a novel binary pattern based low-cost OF estimation algorithm is proposed. The new method consists of two modules. The first is block-level orientation estimation and averaging in vector space by pixel level orientation statistics. The second is orientation quantization and smoothing. In the second module, the continuous orientation is quantized into fixed orientations with sufficient resolution (interval between fixed orientations). An effective smoothing scheme on the quantized orientation space is also proposed. The proposed algorithm is capable of stably processing poor-quality fingerprint images and is validated by tests conducted on an adaptive OF matching scheme. The proposed algorithm is also implemented into a fingerprint System on Chip (SoC) to comfirm that it satisfies the strict requirements of embedded system.
- （社）電子情報通信学会の論文
- 2010-07-01
著者
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Kunieda H
Department Of Communication And Integrated System Tokyo Institute Of Technology
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Kunieda H
Tokyo Inst. Of Technol. Tokyo Jpn
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Li Dongju
Department Of Communications And Integrated Systems Tokyo Institute Of Technology
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Li D
Tokyo Inst. Technol. Tokyo Jpn
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Tang Wei
Dept. Of Communications And Integrated Systems Tokyo Institute Of Technology
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Kunieda Hiroaki
Dept. Of Communications And Integrated Systems Tokyo Institute Of Technology
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Li Dongju
Dept. Of Communications And Integrated Systems Tokyo Institute Of Technology
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ISSHIKI Tsuyoshi
Dept. of Communications and Integrated Systems, Tokyo Institute of Technology
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Isshiki Tsuyoshi
Dept. Of Communications And Integrated Systems Tokyo Institute Of Technology
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