Iris Localization Algorithm based on Effective Area
Iris localization is the most crucial part of the iris processing because its accuracy can directly affect the accuracy of biometric identification in subsequent steps. Yet, the quality of iris images may be sharply degraded due to interference from eyelashes and reflections during image acquisition...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2021/2049646 |
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| _version_ | 1832560511814729728 |
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| author | Jinfeng Yu Lei Zhang Zhi Wang |
| author_facet | Jinfeng Yu Lei Zhang Zhi Wang |
| author_sort | Jinfeng Yu |
| collection | DOAJ |
| description | Iris localization is the most crucial part of the iris processing because its accuracy can directly affect the accuracy of biometric identification in subsequent steps. Yet, the quality of iris images may be sharply degraded due to interference from eyelashes and reflections during image acquisition, which can affect the localization accuracy adversely. To solve the problem, an iris localization algorithm based on effective area is proposed. First, YOLOv4 is used to crop the image to obtain the effective iris area, which is beneficial in improving the accuracy of subsequent localization. Furthermore, a method to remove reflective noise is proposed, which can effectively avoid the problem of noise interference in the process of inner boundary determination. Finally, aiming at the edge deviation caused by eyelashes, an outer boundary adjustment method is proposed. The experimental results show that the proposed method achieves good performance in the localization of iris images of both good quality and noise interference and outperforms other state-of-the-art methods. |
| format | Article |
| id | doaj-art-3297115b7c84469eb9310c3d8745c6fb |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-3297115b7c84469eb9310c3d8745c6fb2025-02-03T01:27:21ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772021-01-01202110.1155/2021/20496462049646Iris Localization Algorithm based on Effective AreaJinfeng Yu0Lei Zhang1Zhi Wang2School of Electronics and Information, Yangtze University, Jingzhou, Hubei 434000, ChinaCollege of Computer and Information Technology, Three Gorges University, Yichang, Hubei 443000, ChinaSchool of Electronics and Information, Yangtze University, Jingzhou, Hubei 434000, ChinaIris localization is the most crucial part of the iris processing because its accuracy can directly affect the accuracy of biometric identification in subsequent steps. Yet, the quality of iris images may be sharply degraded due to interference from eyelashes and reflections during image acquisition, which can affect the localization accuracy adversely. To solve the problem, an iris localization algorithm based on effective area is proposed. First, YOLOv4 is used to crop the image to obtain the effective iris area, which is beneficial in improving the accuracy of subsequent localization. Furthermore, a method to remove reflective noise is proposed, which can effectively avoid the problem of noise interference in the process of inner boundary determination. Finally, aiming at the edge deviation caused by eyelashes, an outer boundary adjustment method is proposed. The experimental results show that the proposed method achieves good performance in the localization of iris images of both good quality and noise interference and outperforms other state-of-the-art methods.http://dx.doi.org/10.1155/2021/2049646 |
| spellingShingle | Jinfeng Yu Lei Zhang Zhi Wang Iris Localization Algorithm based on Effective Area International Journal of Antennas and Propagation |
| title | Iris Localization Algorithm based on Effective Area |
| title_full | Iris Localization Algorithm based on Effective Area |
| title_fullStr | Iris Localization Algorithm based on Effective Area |
| title_full_unstemmed | Iris Localization Algorithm based on Effective Area |
| title_short | Iris Localization Algorithm based on Effective Area |
| title_sort | iris localization algorithm based on effective area |
| url | http://dx.doi.org/10.1155/2021/2049646 |
| work_keys_str_mv | AT jinfengyu irislocalizationalgorithmbasedoneffectivearea AT leizhang irislocalizationalgorithmbasedoneffectivearea AT zhiwang irislocalizationalgorithmbasedoneffectivearea |