Research output: Contribution to journal › Article › peer-review
Brain-like Initial-boosted Hyperchaos and Application in Biomedical Image Encryption. / Lin, Hairong ; Wang, Chunhua; Cui, Li ; Sun, Yichuang; Xu, Cong ; Yu, Fei .
In: IEEE Transactions on Industrial Informatics, 03.03.2022.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Brain-like Initial-boosted Hyperchaos and Application in Biomedical Image Encryption
AU - Lin, Hairong
AU - Wang, Chunhua
AU - Cui, Li
AU - Sun, Yichuang
AU - Xu, Cong
AU - Yu, Fei
N1 - © 2022 IEEE - All rights reserved. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.1109/TII.2022.3155599
PY - 2022/3/3
Y1 - 2022/3/3
N2 - Neural networks have been widely and deeply studied in the field of computational neurodynamics. However, coupled neural networks and their brain-like chaotic dynamics have not been noticed yet. This paper focuses on the coupled neural network-based brain-like initial boosting coexisting hyperchaos and its application in biomedical image encryption. We first construct a memristive coupled neural network (MCNN) model based on two sub-neural networks and one multistable memristor synapse. Then we investigate its coupling strength-related dynamical behaviors, initial states-related dynamical behaviors, and initial-boosted coexisting hyperchaos using bifurcation diagrams, phase portraits, Lyapunov exponents and attraction basins. The numerical results demonstrate that the proposed MCNN can not only generate hyperchaotic attractors with high complexity but also boost the attractor positions by switching their initial states. This makes the MCNN moresuitable for many chaos-based engineering applications. Moreover, we design a biomedical image encryption scheme to explore the application of the MCNN. Performance evaluations show that the designed cryptosystem has several advantages in the keyspace, information entropy, and key sensitivity. Finally, we develop a field-programmable gate array (FPGA) test platform to verify the practicability of the presented MCNN and the designed medical image cryptosystem.
AB - Neural networks have been widely and deeply studied in the field of computational neurodynamics. However, coupled neural networks and their brain-like chaotic dynamics have not been noticed yet. This paper focuses on the coupled neural network-based brain-like initial boosting coexisting hyperchaos and its application in biomedical image encryption. We first construct a memristive coupled neural network (MCNN) model based on two sub-neural networks and one multistable memristor synapse. Then we investigate its coupling strength-related dynamical behaviors, initial states-related dynamical behaviors, and initial-boosted coexisting hyperchaos using bifurcation diagrams, phase portraits, Lyapunov exponents and attraction basins. The numerical results demonstrate that the proposed MCNN can not only generate hyperchaotic attractors with high complexity but also boost the attractor positions by switching their initial states. This makes the MCNN moresuitable for many chaos-based engineering applications. Moreover, we design a biomedical image encryption scheme to explore the application of the MCNN. Performance evaluations show that the designed cryptosystem has several advantages in the keyspace, information entropy, and key sensitivity. Finally, we develop a field-programmable gate array (FPGA) test platform to verify the practicability of the presented MCNN and the designed medical image cryptosystem.
KW - Biological neural networks
KW - Boosting
KW - Chaos
KW - Encryption
KW - FPGA implementation
KW - Hopfield neural network
KW - Hyperchaos
KW - Memristors
KW - Neurons
KW - Synapses
KW - medical image encryption
KW - memristor
UR - http://www.scopus.com/inward/record.url?scp=85125709760&partnerID=8YFLogxK
U2 - 10.1109/TII.2022.3155599
DO - 10.1109/TII.2022.3155599
M3 - Article
JO - IEEE Transactions on Industrial Informatics
JF - IEEE Transactions on Industrial Informatics
SN - 1551-3203
ER -