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首页> 外文期刊>Optical and quantum electronics >An iris biometric protection scheme using 4D hyperchaotic system and modified equal modulus decomposition in hybrid multi resolution wavelet domain
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An iris biometric protection scheme using 4D hyperchaotic system and modified equal modulus decomposition in hybrid multi resolution wavelet domain

机译：一种虹膜生物识别保护方案，使用4D超色度系统和混合多分辨率小波域中修改的等于模量分解

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摘要

In this paper, a hybrid iris biometric protection scheme using 4D hyperchaotic system by means of coherent superposition and modified equal modulus decomposition in hybrid multi-resolution wavelet domain is proposed. The 4D hyperchaotic framework is employed for producing the permutation keystream for pixel swap-over mechanism. The hybrid multi-resolution is produced by means of Kronecker product of Walsh transform and fractional Fourier transform of different orders. Fractional orders of the hybrid multiresolution wavelet along with the parameters and initial conditions of the 4D hyperchaotic framework, later fill in as additional keys, thus enhancing the key space of the proposed mechanism. The proposed scheme has nonlinear characteristics and has high robustness against brute-force attack attributable to its enormous key-space. Numerical simulations have been carried out on grayscale images to prove the authenticity and efficacy of the proposed cryptosystem. The functioning of the proposed cryptosystem is investigated against various attacks including special attack. Outcomes display that the proposed iris template protection scheme not only has higher robustness against noise attack but is also unassailable to the iterative transform-based attacks.
机译：本文提出了一种通过连贯的叠加和改进的叠加在混合多分辨率小波域中的相干叠加和改性的等模量分解的混合虹膜生物识别方法。使用4D超声框架用于产生折叠键盘，用于像素交换机构。混合多分辨率是通过沃尔什变换和不同订单的分数傅里叶变换的克朗克克朗的多分辨率。混合多分辨率小波的分数顺序以及4D超声框架的参数和初始条件，后来填写了额外的键，从而增强了所提出的机制的关键空间。该方案具有非线性特征，对其具有巨大关键空间的严重攻击具有高稳健性。已经在灰度图像上进行了数值模拟，以证明所提出的密码系统的真实性和功效。针对包括特殊攻击的各种攻击调查所提出的密码系统的运作。结果显示，所提出的虹膜模板保护方案不仅具有更高的抗噪声攻击的鲁棒性，而且对迭代变换的攻击也不可用。

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