Medical Image Encryption and Compression Scheme Using Compressive Sensing and Pixel Swapping Based Permutation Approach

作者：Zhang, Li-bo; Zhu, Zhi-liang^*; Yang, Ben-qiang; Liu, Wen-yuan; Zhu, Hong-feng; Zou, Ming-yu

来源：Mathematical Problems in Engineering, 2015, 2015: 940638.

DOI：10.1155/2015/940638

• BIT-LEVEL PERMUTATION
• SIGNAL RECOVERY
• ALGORITHM
• DIFFUSION
• CIPHER
• EFFICIENT
• MATRIX

This paper presents a solution to satisfy the increasing requirements for secure medical image transmission and storage over public networks. The proposed scheme can simultaneously encrypt and compress the medical image using compressive sensing (CS) and pixel swapping based permutation approach. In the CS phase, the plain image is compressed and encrypted by chaos-based Bernoulli measurement matrix, which is generated under the control of the introduced Chebyshev map. The quantized measurements are then encrypted by permutation-diffusion type chaotic cipher for the second level protection. Simulations and extensive security analyses have been performed. The results demonstrate that at a large scale of compression ratio the proposed cryptosystem can provide satisfactory security level and reconstruction quality.

• 出版日期2015
• 单位中国人民解放军沈阳军区总医院; 东北大学