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Image enhancement and iris localization based on 2D complex matched filter for noisy images

机译:基于2D复合匹配滤波器的图像增强与虹膜定位

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Iris image preprocessing is one of the most important steps in iris recognition system. It includes both iris localization and some solutions for in-band noise removal like lighting, eyelashes, eyelids, reflections, etc. In this paper, it proposed a new iris-preprocessing algorithm, in which adopted on one of the famous phenomena on communication system (Matched filter). After this, it made some enhancement for noisy databases that is necessary in the automatic iris recognition system. The algorithm is test to be in effect through our experiments on 2400 iris images from The Institute of Automation, Chinese Academy of Sciences and 2435 iris images University of Bath database. Our goal is to remove the unwanted information and emphasis the wanted one in less time for noisy images. This improvement is significant for the real time application systems that are sensitive to noise, demand precise segmentation results and has time constraints.
机译:虹膜图像预处理是虹膜识别系统中最重要的步骤之一。它包括虹膜本地化和带有照明,睫毛,眼睑,反射等带内噪声去除的一些解决方案,提出了一种新的IRIS-预处理算法,其中在通信系统上的着名现象之一采用(匹配过滤器)。在此之后,它对自动IRIS识别系统所需的噪声数据库进行了一些增强。该算法是通过我们的实验,通过我们的2400虹膜图像,从自动化研究所,中国科学院和2435年虹膜图像浴室数据库大学进行测试。我们的目标是删除不需要的信息,并在更少的时间内强调想要的一个嘈杂的图像。对于对噪声敏感的实时应用系统来说,这种改进是很好的,需要精确的分割结果并具有时间约束。

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