基于压缩感知算法的图像压缩保密方法  

Image Compression Confidentiality Based on Compression Sensing Algorithm

作　　者：宫丽美 张旻[1,2] 王方超[1,2] 

机构地区：[1]解放军电子工程学院,安徽合肥230037 [2]安徽省电子制约技术重点实验室,安徽合肥230037

出　　处：《探测与控制学报》2017年第1期106-110,115,共6页Journal of Detection & Control

基　　金：国家自然科学基金项目资助(61171170);安徽省自然科学基金项目资助(1408085QF115)

摘　　要：针对目前加密方法经压缩后对图像进行加密处理,存在处理效率低、安全性低、算法复杂度高等缺点,提出基于压缩感知算法的图像压缩保密方法。该方法首先对图像进行分块,并分析了分块后的像素置乱加密效果,其次构造了压缩感知观测过程的加密模型,并论证了该模型具有计算保密性,最后通过图像分块的保密性分析和观测矩阵的保密性分析,证实压缩感知算法在压缩时也具有良好加密效果。实验结果表明,该方法鲁棒性强,易于实现,具有一定的工程应用价值。This paper studied several factors influencing the secrecy perception of the image compression based on compression sensing algorithm.Aiming at these problems,the confidentiality of image compression method based on compression sensing algorithm was proposed.First of all,the paper analyzed the image block processing could achieve pixel scrambling,and then build a encryption model about the compressed sensing observation process,at the same time,it was proved that the model although could not achieve perfect secrecy,but the calculating secrecy could not be achieved.The experiment results showed that this method had strong robustness and easy to implement for the further engineering application.

关 键 词：压缩感知 图像加密 分块处理 观测矩阵 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]