研究目的
To propose a novel image encryption scheme based on analog-digital hybrid electro-optic chaotic sources and compressive sensing that improves robustness, security, and efficiency of image encryption and transmission.
研究成果
The proposed image encryption-transmission scheme based on hybrid electro-optic chaotic sources and compressive sensing is effective, secure, and robust. It combines the advantages of analog chaotic systems and digital chaos, offering high efficiency and good security performance. Future work will focus on improving the structural design of the analog-digital chaotic source and realizing the system in experiments.
研究不足
The robustness of the system is dependent on the synchronization quality between chaotic signals, which can be affected by parameter mismatch of analog devices. The scheme may require further optimization for practical applications.
1：Experimental Design and Method Selection:
The scheme utilizes analog-digital hybrid electro-optic chaotic sources for generating chaotic sequences and compressive sensing for image encryption and compression.
2：Sample Selection and Data Sources:
A 256 × 256 pixels 256-scale gray picture is used as the test image.
3：List of Experimental Equipment and Materials:
The system includes components like continuous-wave laser diode (CW-LD), phase modulator (PM), dispersion manipulation device (DMD), photodiode (PD), analog-digital converter (ADC), shift registers (SRs), and clock frequency (CLK).
4：Experimental Procedures and Operational Workflow:
The plain image is encrypted using chaotic sequences generated from the hybrid chaos system and compressed using compressive sensing. The encrypted image is then transmitted and decrypted at the receiver end.
5：Data Analysis Methods:
Performance is evaluated using peak signal to noise ratio (PSNR), histogram analysis, correlation analysis, and information entropy.
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