Generating rotationally hidden attractive sea via a new chaotic system with two mixed memristors

Zhou, Ziwei; Ye, Xiaolin

doi:10.1088/1402-4896/acedd5

Cited by 3 publications

(3 citation statements)

References 40 publications

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“…Step 3: The 2D-MCCM system iterates M N 4 100 ´´times using the new initial values, discarding the first 100 values to obtain the pseudo-random sequence s. Then, the sequence X is obtained using equation (11). X mod floor s 2 , 256 .…”

Section: Generation Of Initial States Of a Memristive Chaotic Systemmentioning

confidence: 99%

“…Furthermore, the proposed chaotic systems are applied to S-boxes. In recent years, many scholars [9][10][11] have demonstrated the richer dynamical characteristics of memristors by integrating them into chaotic systems for modeling. Peng et al [12] proposed a discrete memristor model based on difference theory and designed a well-performing discrete memristor Henon map.…”

Section: Introductionmentioning

confidence: 99%

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Compression and encryption for remote sensing image based on PSO-BP and 2D-MCCM

Li,

Feng,

Zhou

et al. 2024

Phys. Scr.

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In response to the large size of remote sensing images and the limitations of existing image compression and encryption algorithms, this paper proposes a novel compression and encryption algorithm. The proposed algorithm utilizes a new type of memristive chaotic mapping in combination with PSO-BP neural networks and multi-threaded parallelism. Specifically, the proposed novel two-dimensional memristive chaotic mapping involves a combination of new memristors based on HP memristors and Cubic chaotic mapping. Compared to existing chaotic systems, this method exhibits stronger randomness and hyperchaotic characteristics. Additionally, to improve the reconstruction accuracy of compressed images, a traditional BP neural network with an added hidden layer is combined with the PSO algorithm for image compression and reconstruction. Furthermore, to enhance the encryption efficiency of remote sensing images, a multi-threaded parallel encryption method is employed, enabling simultaneous permutation within and among threads. Experimental results demonstrate that the proposed algorithm achieves good compression reconstruction accuracy, excellent encryption performance, and resistance to attacks.

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Section: Generation Of Initial States Of a Memristive Chaotic Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compression and encryption for remote sensing image based on PSO-BP and 2D-MCCM

Li,

Feng,

Zhou

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

show abstract

“…Wen et al [4] presented a new image encryption method based on a twodimensional logically adjusted sinusoidal map (2D-LASM) and Discrete Wavelet Transform (DWT). Besides, other theoretical models of chaotic systems, such as neural network chaotic systems, have been proposed [5][6][7][8][9]. Some scholars construct a memristive hyperchaotic framework to enhance the complexity of the system, effectively addressing the issues of discontinuous chaotic ranges and low Lyapunov exponents in common hyperchaotic systems [10].…”

Section: Introductionmentioning

confidence: 99%

Blind watermarking algorithm with 2D-SCCM chaotic system encryption based on SURF and RHFMs

Lu,

Feng,

Teng

et al. 2024

Phys. Scr.

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In this paper, a digital watermarking algorithm was proposed based on local feature regions and radial harmonic Fourier moments. It used a quantized modulation algorithm to embed the watermark information into the frequency domain information of the image. Compared with traditional watermark directedly embedded into the pixel values, the algorithm enhanced the invisibility of the watermark. Many existing digital watermarking algorithms neglected the security of the embedding process, because of more attention on the effect of post-embedding and extraction. To overcome this problem, we proposed a two-dimensional hyperchaotic system named 2D-SCCM chaotic system, which used classical sine mapping and cubic mapping for coupling. Before embedding, the correlation among the pixels of the watermarked image was disrupted, resulting in a full process security enhancement. Combining the clustering algorithm with feature point extraction, the obtained local feature region was more stable and suitable for watermark embedding. Results showed that the improved watermark embedding algorithm was more effective for resisting geometric attacks such as cropping attacks. Moreover, the PSNR values of the final watermark-embedded images were all greater than 50 dB, indicating a good balance between imperceptibility and robustness.

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An adaptive energy regulation in a memristive map linearized from a circuit with two memristive channels

Yang,

Zhou,

2024

Commun. Theor. Phys.

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The nonlinear circuits can show multistability when magnetic flux-dependent memristor (MFDM) or charge-sensitive memristor (CSM) is incorporated into one branch circuit, which is helpful for estimating magnetic or electric field effects. In this paper, two different kinds of memristors are incorporated into two branch circuits composed of a capacitor and a nonlinear resistor, thus a memristive circuit with double memristive channels is designed. The circuit equations are presented, and the dynamics in this oscillator with two memristive terms are discussed. Then the memristive oscillator is converted into a memristive map by applying linear transformation on the sampled time series for memristive oscillator. The Hamilton energy function for the memristive oscillator is obtained by using the Helmholtz theorem, and it can be mapped from the field energy of the memristive circuit. An energy function for the dual memristive map is suggested by imposing suitable weights on the discrete energy function. The dynamical behaviors of the new memristive map are investigated, and an adaptive law is proposed to regulate the firing mode in the memristive map. This work will provide theoretical basis and experimental guidance for oscillator-to-map transformation and discrete map energy calculation.

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Generating rotationally hidden attractive sea via a new chaotic system with two mixed memristors

Cited by 3 publications

References 40 publications

Compression and encryption for remote sensing image based on PSO-BP and 2D-MCCM

Compression and encryption for remote sensing image based on PSO-BP and 2D-MCCM

Blind watermarking algorithm with 2D-SCCM chaotic system encryption based on SURF and RHFMs

An adaptive energy regulation in a memristive map linearized from a circuit with two memristive channels

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