應用液晶光電相關器來做生物資訊識別的研究

Study of The Biometric Information Recognition by The Optoelectronic Correlator with Liquid Crystal Device

陳計文(Chi-Wen Chen)

指導教授 ： 陳祖龍

元智大學/工程學院/電機工程學系/碩士(2003年)

摘要

在目前的資訊技術中，系統的安全查核變的愈來愈重要，因此，生物辨識提供一個有效的方法。在此篇論文中我們提出液晶裝置應用在聯合相關器上的彩色虹膜識別架構。
近來有一些結合光學與電腦方式作圖樣識別的研究，此複合光電系統結合了光的快速性及電的易處理性，但是其運用的方法存在強烈的零階項自相關能量於輸出相關平面上的中心點，因而降低了系統的辨別力。
為了達到較佳的辨別力，我們提出以聯合轉換相關器為基礎與運用 Lagrange multipliers technique 來設計一參考函數，提升系統彩色的辨別力。研究結果顯示利用 MACE-NOJTC 的架構上，仍然可以得到有效的識別效果。

關鍵字

聯合轉換相關器 ； 生物資訊 ； 虹膜辨識

並列摘要

In current technique of the information, security for systems is becoming more and more important. The biometric provides a secure method of recognition, since it is difficult to replicate and steal. In this thesis, we introduce a multi-channel NOJTC method with minimum average cross-correlation energy for polychromatic iris recognition.
The system is based on the nonzero order joint transform correlator and uses Lagrange multipliers to design a reference function for polychromatic iris image recognition. Simulation results of the iris recognition show some good performance. Therefore the concept of MACE-NOJTC can be applied for the biometric iris recognition.

並列關鍵字

JTC ； biometric information ； iris recognition

參考文獻

[1] J. Daugman, “How iris recognition works,” 2002 International Conference on Image Processing, 1, pp. 33-36. 2002.

[2] L. Ma, Y. Wang and T. Tan, “Iris recognition using circular symmetric filters,” 16th International Conference on Pattern Recognition, 2, pp. 414-417. 2002.

[3] L. Ma, Y. Wang and T. Tan, “Iris recognition based on multichannel Gabor filtering,” 5th Asian Conference on Computer Vision, I, pp. 279-283. 2002.

[4] R. P. Wildes, “Iris recognition: an emerging biometric technology,” Proceedings of the IEEE, 85, pp. 1348-1363. 1997.

[5] V. Espinosa-Duro, “Minutiae detection algorithm for fingerprint recognition,” IEEE Aerospace and Electronics Systems Magazine, 17, pp. 7-10. 2002.