Design of Gabor filter banks for iris recognition

Chia Te Chou, Sheng Wen Shih, Duan Yu Chen

研究成果: 書貢獻/報告類型會議貢獻

13 引文 斯高帕斯(Scopus)

摘要

In this paper, we propose a systematic approach to design Gabor filter banks for iris feature extraction. The spectra of normalized iris images were analyzed and the most informative band (MIB) was located. When tuning the filter parameters, the pass bands of the filter banks are confined to be within the MIB. It turns out that with the MIB constraint the number of orientation parameters of the Gabor filters can be reduced to one. Furthermore, we show that the spatial locations of the Gabor filters can be arbitrarily and uniformly selected provided that the conditions of the Nyquist sampling theorem are satisfied. The main difficulty of designing filter banks for iris feature extraction is that there are too many free parameters to be determined, e.g., there will be 6N parameters to be designed for N filters. However, after analyzing the possible factors influencing the iris feature extraction process, we found that the free parameters of the Gabor filter banks can be reduced from 6N to three. By using the genetic algorithm to tune the filter parameters, the performance of our recognition system has been gradually improved. The experimental results show that the best equal error rate of our system is about 0.05% computed with the CASIA database.
原文英語
主出版物標題Proceedings - 2006 International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2006
發行者IEEE Computer Society
頁面403-406
頁數4
ISBN(列印)0769527450, 9780769527451
DOIs
出版狀態已發佈 - 2006
事件2006 International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2006 - Pasadena, CA, 美国
持續時間: 12月 18 200612月 20 2006

出版系列

名字Proceedings - 2006 International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2006

會議

會議2006 International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2006
國家/地區美国
城市Pasadena, CA
期間12/18/0612/20/06

ASJC Scopus subject areas

  • 一般電腦科學

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