Robust Iris Recognition in Unconstrained Environments | ||
| Journal of AI and Data Mining | ||
| مقاله 2، دوره 7، شماره 4، بهمن 2019، صفحه 495-506 اصل مقاله (2.08 M) | ||
| نوع مقاله: Original/Review Paper | ||
| شناسه دیجیتال (DOI): 10.22044/jadm.2019.7434.1884 | ||
| نویسندگان | ||
| A. Noruzi1؛ M. Mahlouji* 2؛ A. Shahidinejad1 | ||
| 1Department of Computer Engineering, Qom Branch, Islamic Azad University, Qom, Iran. | ||
| 2Department of Electrical & Computer Engineering, Kashan Branch, Islamic Azad University, Kashan, Iran. | ||
| چکیده | ||
| A biometric system provides automatic identification of an individual based on a unique feature or characteristic possessed by him/her. Iris recognition (IR) is known to be the most reliable and accurate biometric identification system. The iris recognition system (IRS) consists of an automatic segmentation mechanism which is based on the Hough transform (HT). This paper presents a robust IRS in unconstrained environments. Through this method, first a photo is taken from the iris, then edge detection is done, later on a contrast adjustment is persecuted in pre-processing stage. Circular HT is subsequently utilized for localizing circular area of iris inner and outer boundaries. The purpose of this last stage is to find circles in imperfect image inputs. Also, through applying parabolic HT, boundaries are localized between upper and lower eyelids. The proposed method, in comparison with available IRSs, not only enjoys higher accuracy, but also competes with them in terms of processing time. Experimental results on images available in UBIRIS, CASIA and MMUI database show that the proposed method has an accuracy rate of 99.12%, 98.80% and 98.34%, respectively. | ||
| کلیدواژهها | ||
| Hough transform؛ Biometric identification؛ Segmentation؛ Normalization؛ Matching | ||
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آمار تعداد مشاهده مقاله: 836 تعداد دریافت فایل اصل مقاله: 900 |
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