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Multi-Image Compression-Encryption Algorithm Based on Compressed Sensing and Optical Encryption.

Jingjin Wei1, Miao Zhang1, Xiaojun Tong1

  • 1Computer Science and Technology, Harbin Institute of Technology, Weihai 264200, China.

Entropy (Basel, Switzerland)
|June 24, 2022
PubMed
Summary
This summary is machine-generated.

This study introduces a novel algorithm for secure and efficient multi-image transmission using compressed sensing and optical encryption. The method enhances image security and transmission speed, offering robust performance.

Keywords:
compressed sensingdouble random phase encodingfractional-order chaotic systemimage compression

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Area of Science:

  • Information Security
  • Optical Engineering
  • Signal Processing

Background:

  • Achieving high-capacity, fast, and secure image transmission remains a challenge.
  • Existing methods often struggle to balance compression efficiency with robust security.
  • Optical encryption and compressed sensing offer promising avenues for advanced image security.

Purpose of the Study:

  • To propose a multi-image compression-encryption algorithm for enhanced image transmission.
  • To improve the security and efficiency of transmitting multiple images simultaneously.
  • To leverage compressed sensing and optical encryption for superior performance.

Main Methods:

  • A novel multi-image compression-encryption algorithm integrating two-dimensional compressed sensing (2D CS) and optical encryption.
  • Simultaneous compression and encryption of multiple images using a new structured measurement matrix.
  • Secondary encryption via double random phase encoding with multi-parameter fractional quaternion Fourier transform and a fractional-order chaotic system.

Main Results:

  • The proposed algorithm demonstrates effective compression and encryption of multiple images.
  • The use of fractional-order chaotic systems and advanced optical transforms enhances security.
  • Experimental results validate the algorithm's strong robustness and security.

Conclusions:

  • The integrated 2D CS and optical encryption algorithm provides a powerful solution for secure multi-image transmission.
  • The method offers a significant improvement in security performance and transmission efficiency.
  • The algorithm exhibits excellent robustness, making it suitable for practical applications.